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|
Abbreviation or Acronym
|
Definition
|
Abbreviation or Acronym
|
Definition
|
2020 Alliant Energy Proxy Statement
|
Alliant Energy’s Proxy Statement for the 2020 Annual Meeting of Shareowners
|
FWEC
|
Forward Wind Energy Center
|
AEF
|
Alliant Energy Finance, LLC
|
GAAP
|
U.S. generally accepted accounting principles
|
AFUDC
|
Allowance for funds used during construction
|
GHG
|
Greenhouse gases
|
Alliant Energy
|
Alliant Energy Corporation
|
IPL
|
Interstate Power and Light Company
|
ARO
|
Asset retirement obligation
|
IRS
|
Internal Revenue Service
|
ATC
|
American Transmission Company LLC
|
ITC
|
ITC Midwest LLC
|
ATC Holdings
|
Interest in American Transmission Company LLC and ATC Holdco LLC
|
IUB
|
Iowa Utilities Board
|
ATI
|
AE Transco Investments, LLC
|
KWh
|
Kilowatt-hour
|
CA
|
Certificate of authority
|
Marshalltown
|
Marshalltown Generating Station
|
CAA
|
Clean Air Act
|
MDA
|
Management’s Discussion and Analysis of Financial Condition and Results of Operations
|
CCR
|
Coal combustion residuals
|
MGP
|
Manufactured gas plant
|
CO2
|
Carbon dioxide
|
MISO
|
Midcontinent Independent System Operator, Inc.
|
Corporate Services
|
Alliant Energy Corporate Services, Inc.
|
MW
|
Megawatt
|
CPCN
|
Certificate of Public Convenience and Necessity
|
MWh
|
Megawatt-hour
|
CWIP
|
Construction work in progress
|
N/A
|
Not applicable
|
DAEC
|
Duane Arnold Energy Center
|
Note(s)
|
Combined Notes to Consolidated Financial Statements
|
DCP
|
Alliant Energy Deferred Compensation Plan
|
OIP
|
Alliant Energy 2010 Omnibus Incentive Plan
|
DLIP
|
Alliant Energy Director Long Term Incentive Plan
|
OPEB
|
Other postretirement benefits
|
Dth
|
Dekatherm
|
PPA
|
Purchased power agreement
|
EEP
|
Energy efficiency plan
|
PSCW
|
Public Service Commission of Wisconsin
|
EGU
|
Electric generating unit
|
Receivables Agreement
|
Receivables Purchase and Sale Agreement
|
EPA
|
U.S. Environmental Protection Agency
|
RES
|
Renewable energy standards
|
EPS
|
Earnings per weighted average common share
|
Riverside
|
Riverside Energy Center
|
FASB
|
Financial Accounting Standards Board
|
SEC
|
Securities and Exchange Commission
|
Federal Tax Reform
|
Tax Cuts and Jobs Act
|
U.S.
|
United States of America
|
FERC
|
Federal Energy Regulatory Commission
|
VEBA
|
Voluntary Employees’ Beneficiary Association
|
Financial Statements
|
Consolidated Financial Statements
|
VIE
|
Variable interest entity
|
FTR
|
Financial transmission right
|
Whiting Petroleum
|
Whiting Petroleum Corporation
|
Fuel-related
|
Electric production fuel and purchased power
|
WPL
|
Wisconsin Power and Light Company
|
|
1
|
|
•
|
IPL’s and WPL’s ability to obtain adequate and timely rate relief to allow for, among other things, the recovery of and/or the return on costs, including fuel costs, operating costs, transmission costs, deferred expenditures, deferred tax assets, tax expense, capital expenditures, and remaining costs related to EGUs that may be permanently closed and certain other retired assets, earning their authorized rates of return, and the payments to their parent of expected levels of dividends;
|
•
|
federal and state regulatory or governmental actions, including the impact of legislation, and regulatory agency orders;
|
•
|
the impact of customer- and third party-owned generation, including alternative electric suppliers, in IPL’s and WPL’s service territories on system reliability, operating expenses and customers’ demand for electricity;
|
•
|
the impact of energy efficiency, franchise retention and customer disconnects on sales volumes and margins;
|
•
|
the impact that price changes may have on IPL’s and WPL’s customers’ demand for electric, gas and steam services and their ability to pay their bills;
|
•
|
the ability to utilize tax credits and net operating losses generated to date, and those that may be generated in the future, before they expire;
|
•
|
the direct or indirect effects resulting from terrorist incidents, including physical attacks and cyber attacks, or responses to such incidents;
|
•
|
the impact of penalties or third-party claims related to, or in connection with, a failure to maintain the security of personally identifiable information, including associated costs to notify affected persons and to mitigate their information security concerns;
|
•
|
any material post-closing payments related to any past asset divestitures, including the sale of Whiting Petroleum, which could result from, among other things, indemnification agreements, warranties, parental guarantees or litigation;
|
•
|
employee workforce factors, including changes in key executives, ability to hire and retain employees with specialized skills, ability to create desired corporate culture, collective bargaining agreements and negotiations, work stoppages or restructurings;
|
•
|
weather effects on results of utility operations;
|
•
|
issues associated with environmental remediation and environmental compliance, including compliance with all environmental and emissions permits, the CCR rule, future changes in environmental laws and regulations, including federal, state or local regulations for CO2 emissions reductions from new and existing fossil-fueled EGUs, and litigation associated with environmental requirements;
|
•
|
increased pressure from customers, investors and other stakeholders to more rapidly reduce CO2 emissions;
|
•
|
the ability to defend against environmental claims brought by state and federal agencies, such as the EPA, state natural resources agencies or third parties, such as the Sierra Club, and the impact on operating expenses of defending and resolving such claims;
|
•
|
continued access to the capital markets on competitive terms and rates, and the actions of credit rating agencies;
|
•
|
inflation and interest rates;
|
•
|
the impact of the economy in IPL’s and WPL’s service territories and the resulting impacts on sales volumes, margins and the ability to collect unpaid bills;
|
•
|
the ability to complete construction of wind and solar projects within the cost caps set by regulators and to meet all requirements to qualify for the full level of production tax credits and investment tax credits, respectively;
|
•
|
changes in the price of delivered natural gas, purchased electricity and coal due to shifts in supply and demand caused by market conditions and regulations;
|
•
|
disruptions in the supply and delivery of natural gas, purchased electricity and coal;
|
•
|
the direct or indirect effects resulting from breakdown or failure of equipment in the operation of electric and gas distribution systems, such as mechanical problems and explosions or fires, and compliance with electric and gas transmission and distribution safety regulations, including regulations promulgated by the Pipeline and Hazardous Materials Safety Administration;
|
•
|
issues related to the availability and operations of EGUs, including start-up risks, breakdown or failure of equipment, performance below expected or contracted levels of output or efficiency, operator error, employee safety, transmission constraints, compliance with mandatory reliability standards and risks related to recovery of resulting incremental costs through rates;
|
•
|
impacts that excessive heat, storms or natural disasters may have on Alliant Energy’s, IPL’s and WPL’s operations and recovery of costs associated with restoration activities, or on the operations of Alliant Energy’s investments;
|
•
|
Alliant Energy’s ability to sustain its dividend payout ratio goal;
|
•
|
changes to costs of providing benefits and related funding requirements of pension and OPEB plans due to the market value of the assets that fund the plans, economic conditions, financial market performance, interest rates, life expectancies and demographics;
|
•
|
material changes in employee-related benefit and compensation costs;
|
•
|
risks associated with operation and ownership of non-utility holdings;
|
•
|
changes in technology that alter the channels through which customers buy or utilize Alliant Energy’s, IPL’s or WPL’s products and services;
|
|
2
|
|
•
|
impacts on equity income from unconsolidated investments due to further potential changes to ATC’s authorized return on equity;
|
•
|
impacts of IPL’s future tax benefits from Iowa rate-making practices, including deductions for repairs expenditures, allocation of mixed service costs and state depreciation, and recoverability of the associated regulatory assets from customers, when the differences reverse in future periods;
|
•
|
the impacts of adjustments made to deferred tax assets and liabilities from changes in the tax laws;
|
•
|
changes to the creditworthiness of counterparties with which Alliant Energy, IPL and WPL have contractual arrangements, including participants in the energy markets and fuel suppliers and transporters;
|
•
|
current or future litigation, regulatory investigations, proceedings or inquiries;
|
•
|
reputational damage from negative publicity, protests, fines, penalties and other negative consequences resulting in regulatory and/or legal actions;
|
•
|
the effect of accounting standards issued periodically by standard-setting bodies;
|
•
|
the ability to successfully complete tax audits and changes in tax accounting methods with no material impact on earnings and cash flows; and
|
•
|
|
3
|
|
|
Total
|
|
Number of
|
|
Percentage of Employees
|
|
|
Number of
|
|
Bargaining Unit
|
|
Covered by Collective
|
|
|
Employees
|
|
Employees
|
|
Bargaining Agreements
|
|
Alliant Energy
|
3,597
|
|
1,948
|
|
|
54%
|
IPL
|
1,418
|
|
885
|
|
|
62%
|
WPL
|
1,153
|
|
952
|
|
|
83%
|
|
4
|
|
|
5
|
|
|
6
|
|
IPL
|
|
WPL
|
|
7
|
|
|
IPL
|
|
WPL
|
||||||||||||||||||||
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
||||||||||||
All fuels
|
|
$2.17
|
|
|
|
$2.46
|
|
|
|
$2.22
|
|
|
|
$2.55
|
|
|
|
$2.72
|
|
|
|
$2.53
|
|
Natural gas (a)
|
2.52
|
|
|
3.12
|
|
|
2.72
|
|
|
2.76
|
|
|
3.30
|
|
|
3.28
|
|
||||||
Coal
|
1.81
|
|
|
1.97
|
|
|
2.00
|
|
|
2.35
|
|
|
2.45
|
|
|
2.38
|
|
(a)
|
The average cost of natural gas includes commodity and transportation costs, as well as realized gains and losses from swap and option contracts used to hedge the price of natural gas volumes expected to be used by IPL’s and WPL’s natural gas-fired EGUs.
|
|
8
|
|
|
9
|
|
Electric Operating Information - Alliant Energy
|
2019
|
|
2018
|
|
2017
|
||||||
Revenues (in millions):
|
|
|
|
|
|
||||||
Residential
|
|
$1,092.4
|
|
|
|
$1,063.4
|
|
|
|
$1,006.2
|
|
Commercial
|
769.7
|
|
|
735.6
|
|
|
710.3
|
|
|||
Industrial
|
889.1
|
|
|
888.8
|
|
|
853.1
|
|
|||
Retail subtotal
|
2,751.2
|
|
|
2,687.8
|
|
|
2,569.6
|
|
|||
Sales for resale
|
250.2
|
|
|
259.2
|
|
|
268.8
|
|
|||
Other
|
62.2
|
|
|
53.3
|
|
|
56.3
|
|
|||
Total
|
|
$3,063.6
|
|
|
|
$3,000.3
|
|
|
|
$2,894.7
|
|
Sales (000s MWh):
|
|
|
|
|
|
||||||
Residential
|
7,207
|
|
|
7,367
|
|
|
6,904
|
|
|||
Commercial
|
6,466
|
|
|
6,487
|
|
|
6,422
|
|
|||
Industrial
|
11,448
|
|
|
11,830
|
|
|
11,769
|
|
|||
Retail subtotal
|
25,121
|
|
|
25,684
|
|
|
25,095
|
|
|||
Sales for resale
|
6,594
|
|
|
5,804
|
|
|
5,003
|
|
|||
Other
|
79
|
|
|
96
|
|
|
94
|
|
|||
Total
|
31,794
|
|
|
31,584
|
|
|
30,192
|
|
|||
Customers (End of Period):
|
|
|
|
|
|
||||||
Retail
|
968,485
|
|
|
962,654
|
|
|
959,295
|
|
|||
Other
|
2,816
|
|
|
2,860
|
|
|
2,826
|
|
|||
Total
|
971,301
|
|
|
965,514
|
|
|
962,121
|
|
|||
Other Selected Electric Data:
|
|
|
|
|
|
||||||
Maximum summer peak hour demand (MW)
|
5,626
|
|
|
5,459
|
|
|
5,375
|
|
|||
Maximum winter peak hour demand (MW)
|
4,395
|
|
|
4,556
|
|
|
4,504
|
|
|||
Cooling degree days (a):
|
|
|
|
|
|
||||||
Cedar Rapids, Iowa (IPL) (normal - 790)
|
805
|
|
|
1,032
|
|
|
747
|
|
|||
Madison, Wisconsin (WPL) (normal - 679)
|
657
|
|
|
799
|
|
|
578
|
|
|||
Sources of electric energy (000s MWh):
|
|
|
|
|
|
||||||
Gas
|
11,060
|
|
|
9,731
|
|
|
5,315
|
|
|||
Purchased power:
|
|
|
|
|
|
||||||
Nuclear
|
3,748
|
|
|
3,538
|
|
|
3,727
|
|
|||
Wind (b)
|
2,383
|
|
|
1,086
|
|
|
1,268
|
|
|||
Other (b)
|
3,264
|
|
|
4,076
|
|
|
6,242
|
|
|||
Wind (b)
|
2,896
|
|
|
1,603
|
|
|
1,591
|
|
|||
Coal
|
8,643
|
|
|
12,113
|
|
|
12,380
|
|
|||
Other (b)
|
239
|
|
|
240
|
|
|
239
|
|
|||
Total
|
32,233
|
|
|
32,387
|
|
|
30,762
|
|
|||
Revenue per KWh sold to retail customers (cents)
|
10.95
|
|
|
10.46
|
|
|
10.24
|
|
(a)
|
Cooling degree days are calculated using a simple average of the high and low temperatures each day compared to a 65 degree base. Normal degree days are calculated using a rolling 20-year average of historical cooling degree days. Refer to “Gas Operating Information” below for details of heating degree days.
|
(b)
|
All or some of the renewable energy attributes associated with generation from these sources may be used in future years to comply with renewable energy standards or other regulatory requirements.
|
|
10
|
|
Electric Operating Information
|
IPL
|
|
WPL
|
||||||||||||||||||||
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
||||||||||||
Revenues (in millions):
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Residential
|
|
$601.5
|
|
|
|
$590.6
|
|
|
|
$535.6
|
|
|
|
$490.9
|
|
|
|
$472.8
|
|
|
|
$470.6
|
|
Commercial
|
510.3
|
|
|
486.8
|
|
|
452.7
|
|
|
259.4
|
|
|
248.8
|
|
|
257.6
|
|
||||||
Industrial
|
503.9
|
|
|
500.8
|
|
|
459.7
|
|
|
385.2
|
|
|
388.0
|
|
|
393.4
|
|
||||||
Retail subtotal
|
1,615.7
|
|
|
1,578.2
|
|
|
1,448.0
|
|
|
1,135.5
|
|
|
1,109.6
|
|
|
1,121.6
|
|
||||||
Sales for resale
|
128.0
|
|
|
117.3
|
|
|
114.6
|
|
|
122.2
|
|
|
141.9
|
|
|
154.2
|
|
||||||
Other
|
37.5
|
|
|
35.6
|
|
|
36.3
|
|
|
24.7
|
|
|
17.7
|
|
|
20.0
|
|
||||||
Total
|
|
$1,781.2
|
|
|
|
$1,731.1
|
|
|
|
$1,598.9
|
|
|
|
$1,282.4
|
|
|
|
$1,269.2
|
|
|
|
$1,295.8
|
|
Sales (000s MWh):
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Residential
|
3,613
|
|
|
3,752
|
|
|
3,508
|
|
|
3,594
|
|
|
3,615
|
|
|
3,396
|
|
||||||
Commercial
|
4,109
|
|
|
4,169
|
|
|
4,115
|
|
|
2,357
|
|
|
2,318
|
|
|
2,307
|
|
||||||
Industrial
|
6,420
|
|
|
6,749
|
|
|
6,733
|
|
|
5,028
|
|
|
5,081
|
|
|
5,036
|
|
||||||
Retail subtotal
|
14,142
|
|
|
14,670
|
|
|
14,356
|
|
|
10,979
|
|
|
11,014
|
|
|
10,739
|
|
||||||
Sales for resale
|
4,479
|
|
|
2,980
|
|
|
2,169
|
|
|
2,115
|
|
|
2,824
|
|
|
2,834
|
|
||||||
Other
|
36
|
|
|
37
|
|
|
38
|
|
|
43
|
|
|
59
|
|
|
56
|
|
||||||
Total
|
18,657
|
|
|
17,687
|
|
|
16,563
|
|
|
13,137
|
|
|
13,897
|
|
|
13,629
|
|
||||||
Customers (End of Period):
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Retail
|
492,830
|
|
|
489,831
|
|
|
489,717
|
|
|
475,655
|
|
|
472,823
|
|
|
469,578
|
|
||||||
Other
|
855
|
|
|
900
|
|
|
878
|
|
|
1,961
|
|
|
1,960
|
|
|
1,948
|
|
||||||
Total
|
493,685
|
|
|
490,731
|
|
|
490,595
|
|
|
477,616
|
|
|
474,783
|
|
|
471,526
|
|
||||||
Other Selected Electric Data:
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Maximum summer peak hour demand (MW)
|
2,944
|
|
|
2,929
|
|
|
2,968
|
|
|
2,682
|
|
|
2,647
|
|
|
2,476
|
|
||||||
Maximum winter peak hour demand (MW)
|
2,377
|
|
|
2,553
|
|
|
2,421
|
|
|
2,031
|
|
|
2,011
|
|
|
2,100
|
|
||||||
Cooling degree days (a):
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Cedar Rapids, Iowa (IPL) (normal - 790)
|
805
|
|
|
1,032
|
|
|
747
|
|
|
N/A
|
|
|
N/A
|
|
|
N/A
|
|
||||||
Madison, Wisconsin (WPL) (normal - 679)
|
N/A
|
|
|
N/A
|
|
|
N/A
|
|
|
657
|
|
|
799
|
|
|
578
|
|
||||||
Sources of electric energy (000s MWh):
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Gas
|
6,362
|
|
|
5,930
|
|
|
3,342
|
|
|
4,698
|
|
|
3,801
|
|
|
1,973
|
|
||||||
Purchased power:
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Nuclear
|
3,748
|
|
|
3,538
|
|
|
3,727
|
|
|
N/A
|
|
|
N/A
|
|
|
N/A
|
|
||||||
Wind (b)
|
1,788
|
|
|
549
|
|
|
613
|
|
|
595
|
|
|
537
|
|
|
655
|
|
||||||
Other (b)
|
326
|
|
|
1,472
|
|
|
2,456
|
|
|
2,938
|
|
|
2,604
|
|
|
3,786
|
|
||||||
Wind (b)
|
2,067
|
|
|
890
|
|
|
851
|
|
|
829
|
|
|
713
|
|
|
740
|
|
||||||
Coal
|
4,470
|
|
|
5,690
|
|
|
5,766
|
|
|
4,173
|
|
|
6,423
|
|
|
6,614
|
|
||||||
Other (b)
|
11
|
|
|
40
|
|
|
22
|
|
|
228
|
|
|
200
|
|
|
217
|
|
||||||
Total
|
18,772
|
|
|
18,109
|
|
|
16,777
|
|
|
13,461
|
|
|
14,278
|
|
|
13,985
|
|
||||||
Revenue per KWh sold to retail customers (cents)
|
11.42
|
|
|
10.76
|
|
|
10.09
|
|
|
10.34
|
|
|
10.07
|
|
|
10.44
|
|
(a)
|
Cooling degree days are calculated using a simple average of the high and low temperatures each day compared to a 65 degree base. Normal degree days are calculated using a rolling 20-year average of historical cooling degree days. Refer to “Gas Operating Information” below for details of heating degree days.
|
(b)
|
All or some of the renewable energy attributes associated with generation from these sources may be used in future years to comply with renewable energy standards or other regulatory requirements.
|
|
11
|
|
Gas Operating Information - Alliant Energy
|
2019
|
|
2018
|
|
2017
|
||||||
Revenues (in millions):
|
|
|
|
|
|
||||||
Residential
|
|
$259.4
|
|
|
|
$254.4
|
|
|
|
$224.7
|
|
Commercial
|
133.0
|
|
|
133.0
|
|
|
123.2
|
|
|||
Industrial
|
16.0
|
|
|
14.9
|
|
|
16.7
|
|
|||
Retail subtotal
|
408.4
|
|
|
402.3
|
|
|
364.6
|
|
|||
Transportation/other
|
46.8
|
|
|
44.3
|
|
|
36.3
|
|
|||
Total
|
|
$455.2
|
|
|
|
$446.6
|
|
|
|
$400.9
|
|
Sales (000s Dths):
|
|
|
|
|
|
||||||
Residential
|
30,791
|
|
|
29,356
|
|
|
26,127
|
|
|||
Commercial
|
21,611
|
|
|
21,003
|
|
|
19,501
|
|
|||
Industrial
|
3,448
|
|
|
3,030
|
|
|
3,622
|
|
|||
Retail subtotal
|
55,850
|
|
|
53,389
|
|
|
49,250
|
|
|||
Transportation/other
|
97,135
|
|
|
90,357
|
|
|
76,916
|
|
|||
Total
|
152,985
|
|
|
143,746
|
|
|
126,166
|
|
|||
Retail Customers at End of Period
|
417,322
|
|
|
415,174
|
|
|
413,054
|
|
|||
Other Selected Gas Data:
|
|
|
|
|
|
||||||
Heating degree days (a):
|
|
|
|
|
|
||||||
Cedar Rapids, Iowa (IPL) (normal - 6,609)
|
7,262
|
|
|
6,868
|
|
|
6,076
|
|
|||
Madison, Wisconsin (WPL) (normal - 6,892)
|
7,397
|
|
|
7,303
|
|
|
6,569
|
|
|||
Revenue per Dth sold to retail customers
|
|
$7.31
|
|
|
|
$7.54
|
|
|
|
$7.40
|
|
Purchased gas costs per Dth sold to retail customers
|
|
$3.89
|
|
|
|
$4.27
|
|
|
|
$4.23
|
|
|
12
|
|
Gas Operating Information
|
IPL
|
|
WPL
|
||||||||||||||||||||
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
||||||||||||
Revenues (in millions):
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Residential
|
|
$149.3
|
|
|
|
$152.3
|
|
|
|
$123.2
|
|
|
|
$110.1
|
|
|
|
$102.1
|
|
|
|
$101.5
|
|
Commercial
|
74.9
|
|
|
75.9
|
|
|
67.9
|
|
|
58.1
|
|
|
57.1
|
|
|
55.3
|
|
||||||
Industrial
|
11.7
|
|
|
10.2
|
|
|
11.1
|
|
|
4.3
|
|
|
4.7
|
|
|
5.6
|
|
||||||
Retail subtotal
|
235.9
|
|
|
238.4
|
|
|
202.2
|
|
|
172.5
|
|
|
163.9
|
|
|
162.4
|
|
||||||
Transportation/other
|
28.3
|
|
|
27.8
|
|
|
23.8
|
|
|
18.5
|
|
|
16.5
|
|
|
12.5
|
|
||||||
Total
|
|
$264.2
|
|
|
|
$266.2
|
|
|
|
$226.0
|
|
|
|
$191.0
|
|
|
|
$180.4
|
|
|
|
$174.9
|
|
Sales (000s Dths):
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Residential
|
16,078
|
|
|
15,925
|
|
|
13,856
|
|
|
14,713
|
|
|
13,431
|
|
|
12,271
|
|
||||||
Commercial
|
10,906
|
|
|
10,707
|
|
|
10,303
|
|
|
10,705
|
|
|
10,296
|
|
|
9,198
|
|
||||||
Industrial
|
2,514
|
|
|
2,019
|
|
|
2,421
|
|
|
934
|
|
|
1,011
|
|
|
1,201
|
|
||||||
Retail subtotal
|
29,498
|
|
|
28,651
|
|
|
26,580
|
|
|
26,352
|
|
|
24,738
|
|
|
22,670
|
|
||||||
Transportation/other
|
38,323
|
|
|
37,899
|
|
|
39,365
|
|
|
58,812
|
|
|
52,458
|
|
|
37,551
|
|
||||||
Total
|
67,821
|
|
|
66,550
|
|
|
65,945
|
|
|
85,164
|
|
|
77,196
|
|
|
60,221
|
|
||||||
Retail Customers at End of Period
|
224,613
|
|
|
224,413
|
|
|
224,041
|
|
|
192,709
|
|
|
190,761
|
|
|
189,013
|
|
||||||
Other Selected Gas Data:
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Maximum daily winter peak demand (Dth)
|
303,508
|
|
|
264,787
|
|
|
237,203
|
|
|
229,022
|
|
|
220,784
|
|
|
201,947
|
|
||||||
Heating degree days (a):
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Cedar Rapids, Iowa (IPL) (normal - 6,609)
|
7,262
|
|
|
6,868
|
|
|
6,076
|
|
|
N/A
|
|
|
N/A
|
|
|
N/A
|
|
||||||
Madison, Wisconsin (WPL) (normal - 6,892)
|
N/A
|
|
|
N/A
|
|
|
N/A
|
|
|
7,397
|
|
|
7,303
|
|
|
6,569
|
|
||||||
Revenue per Dth sold to retail customers
|
|
$8.00
|
|
|
|
$8.32
|
|
|
|
$7.61
|
|
|
|
$6.55
|
|
|
|
$6.63
|
|
|
|
$7.16
|
|
Purchased gas cost per Dth sold to retail customers
|
|
$4.06
|
|
|
|
$4.51
|
|
|
|
$4.34
|
|
|
|
$3.70
|
|
|
|
$3.99
|
|
|
|
$4.11
|
|
(a)
|
Heating degree days are calculated using a simple average of the high and low temperatures each day compared to a 65 degree base. Normal degree days are calculated using a rolling 20-year average of historical heating degree days.
|
|
13
|
|
|
14
|
|
|
15
|
|
|
16
|
|
|
17
|
|
|
18
|
|
IPL
|
|
|
|
Nameplate
|
|
Generating
|
||
|
|
In-service
|
|
Capacity
|
|
Capacity
|
||
Name of EGU and Location
|
|
Dates
|
|
in MW
|
|
in MW (a)
|
||
Marshalltown Generating Station (Units 1-3); Marshalltown, IA
|
|
2017
|
|
706
|
|
|
624
|
|
Emery Generating Station (Units 1-3); Mason City, IA
|
|
2004
|
|
603
|
|
|
538
|
|
Marshalltown Combustion Turbines (Units 1-3); Marshalltown, IA
|
|
1978
|
|
189
|
|
|
134
|
|
Prairie Creek Generating Station (Unit 4); Cedar Rapids, IA
|
|
1967
|
|
149
|
|
|
105
|
|
Burlington Combustion Turbines (Units 1-4); Burlington, IA
|
|
1994-1996
|
|
79
|
|
|
38
|
|
Total Gas
|
|
|
|
1,726
|
|
|
1,439
|
|
Ottumwa Generating Station (Unit 1); Ottumwa, IA (b)
|
|
1981
|
|
348
|
|
|
320
|
|
Lansing Generating Station (Unit 4); Lansing, IA
|
|
1977
|
|
275
|
|
|
210
|
|
Burlington Generating Station (Unit 1); Burlington, IA
|
|
1968
|
|
212
|
|
|
179
|
|
George Neal Generating Station (Unit 4); Sioux City, IA (c)
|
|
1979
|
|
179
|
|
|
156
|
|
George Neal Generating Station (Unit 3); Sioux City, IA (d)
|
|
1975
|
|
164
|
|
|
137
|
|
Prairie Creek Generating Station (Units 1 and 3); Cedar Rapids, IA
|
|
1958-1997
|
|
65
|
|
|
28
|
|
Louisa Generating Station (Unit 1); Louisa, IA (e)
|
|
1983
|
|
32
|
|
|
29
|
|
Total Coal
|
|
|
|
1,275
|
|
|
1,059
|
|
Lime Creek Combustion Turbines (Units 1-2); Mason City, IA
|
|
1991
|
|
90
|
|
|
67
|
|
Total Oil
|
|
|
|
90
|
|
|
67
|
|
Upland Prairie (121 Units); Clay and Dickinson Cos., IA
|
|
2019
|
|
303
|
|
|
47
|
|
Whispering Willow - East (121 Units); Franklin Co., IA
|
|
2009
|
|
200
|
|
|
32
|
|
English Farms (69 Units); Poweshiek Co., IA
|
|
2019
|
|
172
|
|
|
26
|
|
Franklin County (60 Units); Franklin Co., IA
|
|
2012
|
|
99
|
|
|
16
|
|
Total Wind
|
|
|
|
774
|
|
|
121
|
|
Dubuque Solar Garden; Dubuque, IA
|
|
2017
|
|
5
|
|
|
2
|
|
Total Solar
|
|
|
|
5
|
|
|
2
|
|
Total capacity
|
|
|
|
3,870
|
|
|
2,688
|
|
WPL
|
|
|
|
Nameplate
|
|
Generating
|
||
|
|
In-service
|
|
Capacity
|
|
Capacity
|
||
Name of EGU and Location
|
|
Dates
|
|
in MW
|
|
in MW (a)
|
||
Riverside Energy Center (Units 1-3); Beloit, WI
|
|
2004
|
|
675
|
|
|
544
|
|
Neenah Energy Facility (Units 1-2); Neenah, WI
|
|
2000
|
|
371
|
|
|
293
|
|
South Fond du Lac Combustion Turbines (2 Units); Fond du Lac, WI (f)
|
|
1994
|
|
191
|
|
|
150
|
|
Rock River Combustion Turbines (Units 3-6); Beloit, WI
|
|
1967-1972
|
|
169
|
|
|
81
|
|
Sheepskin Combustion Turbine (Unit 1); Edgerton, WI
|
|
1971
|
|
42
|
|
|
28
|
|
Total Gas
|
|
|
|
1,448
|
|
|
1,096
|
|
Columbia Energy Center (Units 1-2); Portage, WI (g)
|
|
1975-1978
|
|
593
|
|
|
561
|
|
Edgewater Generating Station (Unit 5); Sheboygan, WI
|
|
1985
|
|
414
|
|
|
404
|
|
Total Coal
|
|
|
|
1,007
|
|
|
965
|
|
Bent Tree (122 Units); Freeborn Co., MN
|
|
2010-2011
|
|
201
|
|
|
31
|
|
Cedar Ridge (41 Units); Fond du Lac Co., WI
|
|
2008
|
|
68
|
|
|
10
|
|
Forward Wind Energy Center (37 Units); Dodge and Fond du Lac Cos., WI (h)
|
|
2008
|
|
59
|
|
|
9
|
|
Total Wind
|
|
|
|
328
|
|
|
50
|
|
Prairie du Sac Hydro Plant (8 Units); Prairie due Sac, WI
|
|
1914-1940
|
|
33
|
|
|
12
|
|
Kilbourn Hydro Plant (4 Units); Wisconsin Dells, WI
|
|
1926-1939
|
|
10
|
|
|
6
|
|
Total Hydro
|
|
|
|
43
|
|
|
18
|
|
Total capacity
|
|
|
|
2,826
|
|
|
2,129
|
|
(a)
|
Based on the accredited generating capacity of the EGUs as of December 31, 2019 included in MISO’s resource adequacy process for the planning period from June 2019 through May 2020.
|
(b)
|
Represents IPL’s 48% ownership interest in this 726 MW (nameplate capacity) / 667 MW (generating capacity) EGU, which is operated by IPL.
|
(c)
|
Represents IPL’s 25.695% ownership interest in this 696 MW (nameplate capacity) / 608 MW (generating capacity) EGU, which is operated by MidAmerican Energy Company.
|
(d)
|
Represents IPL’s 28% ownership interest in this 584 MW (nameplate capacity) / 488 MW (generating capacity) EGU, which is operated by MidAmerican Energy Company.
|
(e)
|
Represents IPL’s 4% ownership interest in this 812 MW (nameplate capacity) / 713 MW (generating capacity) EGU, which is operated by MidAmerican Energy Company.
|
|
19
|
|
(f)
|
Represents Units 2 and 3, which WPL owns. WPL also operates, but does not own, South Fond du Lac Combustion Turbines Units 1 and 4.
|
(g)
|
Represents WPL’s 53.3% ownership interest in this 1,112 MW (nameplate capacity) / 1,053 MW (generating capacity) EGU, which is operated by WPL.
|
(h)
|
Represents WPL’s 42.64% ownership interest in this 138 MW (nameplate capacity) / 20 MW (generating capacity) EGU, which is operated by Invenergy Services, LLC.
|
|
20
|
|
Name
|
|
Age as of Filing Date
|
|
Registrant
|
|
Positions
|
John O. Larsen
|
|
56
|
|
Alliant Energy
|
|
Mr. Larsen has served as a director since February 2019, and as Chairman of the Board, President and Chief Executive Officer (CEO) since July 2019. He previously served as President and Chief Operating Officer since January 2019, as President from January 2018 to January 2019, and as Senior Vice President (VP) from February 2014 to January 2018.
|
|
|
|
|
IPL
|
|
Mr. Larsen has served as CEO since January 2019, as a director since February 2019, and as Chairman of the Board since July 2019. He previously served as Senior VP since February 2014.
|
|
|
|
|
WPL
|
|
Mr. Larsen has served as CEO since January 2019, as a director since February 2019, and as Chairman of the Board since July 2019. He previously served as President since December 2010.
|
Robert J. Durian
|
|
49
|
|
Alliant Energy, IPL and WPL
|
|
Mr. Durian has served as Executive VP and Chief Financial Officer (CFO) since February 2020. He previously served as Senior VP and CFO since February 2019; as Senior VP, CFO and Treasurer from January 2018 to February 2019; as VP, CFO and Treasurer from December 2016 to January 2018; as VP, Chief Accounting Officer (CAO) and Treasurer from July 2016 to December 2016; as VP, CAO and Controller from July 2015 to July 2016; and as Controller and CAO from February 2011 to July 2015.
|
James H. Gallegos
|
|
59
|
|
Alliant Energy, IPL and WPL
|
|
Mr. Gallegos has served as Executive VP, General Counsel and Corporate Secretary since February 2020. He previously served as Senior VP, General Counsel and Corporate Secretary since February 2015; and as Senior VP and General Counsel from February 2014 to February 2015.
|
David A. de Leon
|
|
57
|
|
Alliant Energy and IPL
|
|
Mr. de Leon has served as Senior VP since January 2019. He previously served as VP since April 2017 and as Director-Generation Construction from February 2014 to April 2017.
|
|
|
|
|
WPL
|
|
Mr. de Leon has served as President since January 2019. He previously served as VP since April 2017 and as Director-Generation Construction from February 2014 to April 2017.
|
Terry L. Kouba
|
|
61
|
|
Alliant Energy and WPL
|
|
Mr. Kouba has served as Senior VP since January 2019. He previously served as VP since February 2014.
|
|
|
|
|
IPL
|
|
Mr. Kouba has served as President since January 2019. He previously served as VP since February 2014.
|
Benjamin M. Bilitz
|
|
45
|
|
Alliant Energy, IPL and WPL
|
|
Mr. Bilitz has served as CAO and Controller since December 2016. He previously served as Controller since July 2016 and as Assistant Controller from March 2011 to July 2016.
|
|
21
|
|
|
|
Total Number
|
|
Average Price
|
|
Total Number of Shares
|
|
Maximum Number (or Approximate
|
|||
|
|
of Shares
|
|
Paid Per
|
|
Purchased as Part of
|
|
Dollar Value) of Shares That May
|
|||
Period
|
|
Purchased (a)
|
|
Share
|
|
Publicly Announced Plan
|
|
Yet Be Purchased Under the Plan (a)
|
|||
October 1 to October 31
|
|
1,794
|
|
|
|
$53.08
|
|
|
—
|
|
N/A
|
November 1 to November 30
|
|
2,847
|
|
|
52.89
|
|
|
—
|
|
N/A
|
|
December 1 to December 31
|
|
162
|
|
|
53.62
|
|
|
—
|
|
N/A
|
|
|
|
4,803
|
|
|
52.99
|
|
|
—
|
|
|
(a)
|
All shares were purchased on the open market and held in a rabbi trust under the DCP. There is no limit on the number of shares of Alliant Energy common stock that may be held under the DCP, which currently does not have an expiration date.
|
Alliant Energy
|
2019 (a)
|
|
2018 (a)
|
|
2017
|
|
2016
|
|
2015
|
||||||||||
|
(dollars in millions, except per share data)
|
||||||||||||||||||
Income Statement Data:
|
|
||||||||||||||||||
Revenues
|
|
$3,647.7
|
|
|
|
$3,534.5
|
|
|
|
$3,382.2
|
|
|
|
$3,320.0
|
|
|
|
$3,253.6
|
|
Amounts attributable to Alliant Energy common shareowners:
|
|
|
|
|
|
|
|
|
|
||||||||||
Income from continuing operations, net of tax
|
557.2
|
|
|
512.1
|
|
|
455.9
|
|
|
373.8
|
|
|
380.7
|
|
|||||
Income (loss) from discontinued operations, net of tax
|
—
|
|
|
—
|
|
|
1.4
|
|
|
(2.3
|
)
|
|
(2.5
|
)
|
|||||
Net income
|
557.2
|
|
|
512.1
|
|
|
457.3
|
|
|
371.5
|
|
|
378.2
|
|
|||||
Common Stock Data:
|
|
|
|
|
|
|
|
|
|
||||||||||
Earnings per weighted average common share attributable to Alliant Energy common shareowners (basic):
|
|
|
|
|
|
|
|
|
|
||||||||||
Income from continuing operations, net of tax
|
|
$2.34
|
|
|
|
$2.19
|
|
|
|
$1.99
|
|
|
|
$1.65
|
|
|
|
$1.69
|
|
Loss from discontinued operations, net of tax
|
|
$—
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
($0.01
|
)
|
|
|
($0.01
|
)
|
Net income
|
|
$2.34
|
|
|
|
$2.19
|
|
|
|
$1.99
|
|
|
|
$1.64
|
|
|
|
$1.68
|
|
Earnings per weighted average common share attributable to Alliant Energy common shareowners (diluted):
|
|
|
|
|
|
|
|
|
|
||||||||||
Income from continuing operations, net of tax
|
|
$2.33
|
|
|
|
$2.19
|
|
|
|
$1.99
|
|
|
|
$1.65
|
|
|
|
$1.69
|
|
Loss from discontinued operations, net of tax
|
|
$—
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
($0.01
|
)
|
|
|
($0.01
|
)
|
Net income
|
|
$2.33
|
|
|
|
$2.19
|
|
|
|
$1.99
|
|
|
|
$1.64
|
|
|
|
$1.68
|
|
Common shares outstanding at year-end (000s)
|
245,023
|
|
|
236,063
|
|
|
231,349
|
|
|
227,674
|
|
|
226,918
|
|
|||||
Dividends declared per common share
|
|
$1.42
|
|
|
|
$1.34
|
|
|
|
$1.26
|
|
|
|
$1.175
|
|
|
|
$1.10
|
|
Market value per share at year-end
|
|
$54.72
|
|
|
|
$42.25
|
|
|
|
$42.61
|
|
|
|
$37.89
|
|
|
|
$31.225
|
|
Book value per share at year-end
|
|
$21.24
|
|
|
|
$19.43
|
|
|
|
$18.08
|
|
|
|
$16.96
|
|
|
|
$16.41
|
|
Market capitalization at year-end
|
|
$13,407.7
|
|
|
|
$9,973.7
|
|
|
|
$9,857.8
|
|
|
|
$8,626.6
|
|
|
|
$7,085.5
|
|
Other Selected Financial Data:
|
|
|
|
|
|
|
|
|
|
||||||||||
Cash flows from operating activities (b)
|
|
$660.4
|
|
|
|
$527.7
|
|
|
|
$521.6
|
|
|
|
$392.8
|
|
|
|
$871.2
|
|
Construction and acquisition expenditures
|
|
$1,640.1
|
|
|
|
$1,633.9
|
|
|
|
$1,466.9
|
|
|
|
$1,196.8
|
|
|
|
$1,034.3
|
|
Total assets at year-end
|
|
$16,700.7
|
|
|
|
$15,426.0
|
|
|
|
$14,187.8
|
|
|
|
$13,373.8
|
|
|
|
$12,495.2
|
|
Long-term obligations, net
|
|
$6,190.8
|
|
|
|
$5,506.1
|
|
|
|
$4,870.6
|
|
|
|
$4,325.1
|
|
|
|
$3,837.0
|
|
|
22
|
|
IPL
|
|
|
|
|
|
|
|
|
|
||||||||||
Revenues
|
|
$2,089.6
|
|
|
|
$2,042.3
|
|
|
|
$1,870.3
|
|
|
|
$1,820.4
|
|
|
|
$1,774.5
|
|
Net income available for common stock
|
284.1
|
|
|
264.0
|
|
|
216.8
|
|
|
215.6
|
|
|
186.0
|
|
|||||
Cash dividends declared on common stock
|
168.0
|
|
|
168.0
|
|
|
156.1
|
|
|
151.9
|
|
|
140.0
|
|
|||||
Cash flows from (used for) operating activities (b)
|
172.9
|
|
|
(5.0
|
)
|
|
(21.8
|
)
|
|
(104.9
|
)
|
|
385.0
|
|
|||||
Total assets
|
9,277.5
|
|
|
8,411.4
|
|
|
7,606.0
|
|
|
7,304.7
|
|
|
6,709.1
|
|
|||||
Long-term obligations, net
|
3,147.7
|
|
|
2,552.8
|
|
|
2,406.6
|
|
|
2,154.0
|
|
|
1,857.4
|
|
|||||
|
|
|
|
|
|
|
|
|
|
||||||||||
WPL
|
|
|
|
|
|
|
|
|
|
||||||||||
Revenues
|
|
$1,475.7
|
|
|
|
$1,452.6
|
|
|
|
$1,472.8
|
|
|
|
$1,459.1
|
|
|
|
$1,435.1
|
|
Net income available for common stock
|
233.0
|
|
|
208.1
|
|
|
186.6
|
|
|
190.4
|
|
|
176.3
|
|
|||||
Cash dividends declared on common stock
|
143.9
|
|
|
140.1
|
|
|
125.9
|
|
|
135.0
|
|
|
126.9
|
|
|||||
Cash flows from operating activities
|
423.2
|
|
|
457.0
|
|
|
465.7
|
|
|
521.4
|
|
|
449.8
|
|
|||||
Total assets
|
6,506.5
|
|
|
6,152.5
|
|
|
5,756.5
|
|
|
5,290.3
|
|
|
5,270.4
|
|
|||||
Long-term obligations, net
|
1,992.9
|
|
|
1,905.4
|
|
|
1,914.3
|
|
|
1,623.2
|
|
|
1,624.2
|
|
(a)
|
(b)
|
In 2018, Alliant Energy’s and IPL’s cash flows from operating activities were restated for 2017 and 2016 as a result of the adoption of a new cash flows presentation accounting standard. Alliant Energy’s and IPL’s cash flows from operating activities for 2015 were not retrospectively amended for this new presentation standard as the information was not available due to the implementation of a new customer billing and information system in 2016.
|
•
|
WPL maintaining flat base rates in 2019 and 2020 by utilizing Federal Tax Reform benefits and lower fuel costs.
|
•
|
IPL’s rate settlement, which will provide $35 million of billing credits to Iowa electric customers starting in 2020.
|
•
|
Significant fuel cost reductions achieved in 2019 and further reductions in fuel cost expected in 2020 as a result of expansion of renewable generation and operating highly efficient, low cost natural gas facilities.
|
•
|
IPL’s energy efficiency plan for 2019 through 2023 approved by the IUB in March 2019, which provides direct financial savings to customers and provides cost-effective options to help electric and gas customers reduce their energy usage.
|
•
|
Completion of construction of IPL’s new wind projects: Upland Prairie (303 MW in March 2019), English Farms (172 MW in March 2019) and Whispering Willow North (201 MW in January 2020).
|
|
23
|
|
•
|
Progress made with the construction of IPL’s and WPL’s remaining wind projects (approximately 480 MW) that are expected to be placed in service in 2020.
|
•
|
Expansion of natural gas-fired generation with the construction of WPL’s 730 MW West Riverside facility, which is expected to be completed in the first half of 2020.
|
•
|
WPL’s announcement of plans for development and acquisition of up to 1,000 MW of solar generation by 2023.
|
•
|
WPL’s planned expansion of its gas distribution system in Western Wisconsin in 2020.
|
•
|
Installation of a selective catalytic reduction system at IPL’s Ottumwa Unit 1 in 2019.
|
•
|
Completed implementation of advanced metering infrastructure for IPL customers in 2019.
|
•
|
Progress with certifying development-ready sites throughout Iowa and Wisconsin, including finalizing certification of the Prairie View Industrial Center Super Park, a 730-acre rail-served ready-to-build manufacturing and industrial site in Ames, Iowa, which is in close proximity to the regional airport and interstate freeways and accesses IPL’s electric services. In addition, the Beaver Dam Commerce Park was certified, which is a 520-acre ready-to-build manufacturing and industrial site in Beaver Dam, Wisconsin, with access to commercial and freight airports, interstate freeways and WPL’s electric services.
|
|
2019
|
|
2018
|
||||||||||||
|
Income (Loss)
|
|
EPS
|
|
Income (Loss)
|
|
EPS
|
||||||||
Utilities and Corporate Services
|
|
$529.5
|
|
|
|
$2.22
|
|
|
|
$485.7
|
|
|
|
$2.08
|
|
ATC Holdings
|
33.6
|
|
|
0.14
|
|
|
28.4
|
|
|
0.12
|
|
||||
Non-utility and Parent
|
(5.9
|
)
|
|
(0.03
|
)
|
|
(2.0
|
)
|
|
(0.01
|
)
|
||||
Alliant Energy Consolidated
|
|
$557.2
|
|
|
|
$2.33
|
|
|
|
$512.1
|
|
|
|
$2.19
|
|
|
24
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||||||
Operating income
|
|
$777.7
|
|
|
|
$694.4
|
|
|
|
$402.8
|
|
|
|
$350.8
|
|
|
|
$347.2
|
|
|
|
$312.9
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Electric utility revenues
|
|
$3,063.6
|
|
|
|
$3,000.3
|
|
|
|
$1,781.2
|
|
|
|
$1,731.1
|
|
|
|
$1,282.4
|
|
|
|
$1,269.2
|
|
Electric production fuel and purchased power expenses
|
(776.7
|
)
|
|
(855.0
|
)
|
|
(434.5
|
)
|
|
(469.0
|
)
|
|
(342.2
|
)
|
|
(386.0
|
)
|
||||||
Electric transmission service expense
|
(481.4
|
)
|
|
(495.7
|
)
|
|
(340.2
|
)
|
|
(352.9
|
)
|
|
(141.2
|
)
|
|
(142.8
|
)
|
||||||
Utility Electric Margin (non-GAAP)
|
1,805.5
|
|
|
1,649.6
|
|
|
1,006.5
|
|
|
909.2
|
|
|
799.0
|
|
|
740.4
|
|
||||||
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Gas utility revenues
|
455.2
|
|
|
446.6
|
|
|
264.2
|
|
|
266.2
|
|
|
191.0
|
|
|
180.4
|
|
||||||
Cost of gas sold
|
(221.7
|
)
|
|
(232.3
|
)
|
|
(119.9
|
)
|
|
(129.6
|
)
|
|
(101.8
|
)
|
|
(102.7
|
)
|
||||||
Utility Gas Margin (non-GAAP)
|
233.5
|
|
|
214.3
|
|
|
144.3
|
|
|
136.6
|
|
|
89.2
|
|
|
77.7
|
|
||||||
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Other utility revenues
|
46.5
|
|
|
48.0
|
|
|
44.2
|
|
|
45.0
|
|
|
2.3
|
|
|
3.0
|
|
||||||
Non-utility revenues
|
82.4
|
|
|
39.6
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
||||||
Other operation and maintenance expenses
|
(712.2
|
)
|
|
(645.8
|
)
|
|
(404.6
|
)
|
|
(402.6
|
)
|
|
(260.9
|
)
|
|
(241.6
|
)
|
||||||
Depreciation and amortization expenses
|
(567.2
|
)
|
|
(506.9
|
)
|
|
(326.7
|
)
|
|
(283.5
|
)
|
|
(235.6
|
)
|
|
(219.4
|
)
|
||||||
Taxes other than income tax expense
|
(110.8
|
)
|
|
(104.4
|
)
|
|
(60.9
|
)
|
|
(53.9
|
)
|
|
(46.8
|
)
|
|
(47.2
|
)
|
||||||
Operating income
|
|
$777.7
|
|
|
|
$694.4
|
|
|
|
$402.8
|
|
|
|
$350.8
|
|
|
|
$347.2
|
|
|
|
$312.9
|
|
|
Electric
|
|
Gas
|
||||||||||||||||||||||||
|
Revenues
|
|
MWhs Sold
|
|
Revenues
|
|
Dths Sold
|
||||||||||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||||||
Alliant Energy
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Retail
|
|
$2,751.2
|
|
|
|
$2,687.8
|
|
|
25,121
|
|
|
25,684
|
|
|
|
$408.4
|
|
|
|
$402.3
|
|
|
55,850
|
|
|
53,389
|
|
Sales for resale
|
250.2
|
|
|
259.2
|
|
|
6,594
|
|
|
5,804
|
|
|
N/A
|
|
|
N/A
|
|
|
N/A
|
|
|
N/A
|
|
||||
Transportation/Other
|
62.2
|
|
|
53.3
|
|
|
79
|
|
|
96
|
|
|
46.8
|
|
|
44.3
|
|
|
97,135
|
|
|
90,357
|
|
||||
|
|
$3,063.6
|
|
|
|
$3,000.3
|
|
|
31,794
|
|
|
31,584
|
|
|
|
$455.2
|
|
|
|
$446.6
|
|
|
152,985
|
|
|
143,746
|
|
IPL
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Retail
|
|
$1,615.7
|
|
|
|
$1,578.2
|
|
|
14,142
|
|
|
14,670
|
|
|
|
$235.9
|
|
|
|
$238.4
|
|
|
29,498
|
|
|
28,651
|
|
Sales for resale
|
128.0
|
|
|
117.3
|
|
|
4,479
|
|
|
2,980
|
|
|
N/A
|
|
|
N/A
|
|
|
N/A
|
|
|
N/A
|
|
||||
Transportation/Other
|
37.5
|
|
|
35.6
|
|
|
36
|
|
|
37
|
|
|
28.3
|
|
|
27.8
|
|
|
38,323
|
|
|
37,899
|
|
||||
|
|
$1,781.2
|
|
|
|
$1,731.1
|
|
|
18,657
|
|
|
17,687
|
|
|
|
$264.2
|
|
|
|
$266.2
|
|
|
67,821
|
|
|
66,550
|
|
WPL
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Retail
|
|
$1,135.5
|
|
|
|
$1,109.6
|
|
|
10,979
|
|
|
11,014
|
|
|
|
$172.5
|
|
|
|
$163.9
|
|
|
26,352
|
|
|
24,738
|
|
Sales for resale
|
122.2
|
|
|
141.9
|
|
|
2,115
|
|
|
2,824
|
|
|
N/A
|
|
|
N/A
|
|
|
N/A
|
|
|
N/A
|
|
||||
Transportation/Other
|
24.7
|
|
|
17.7
|
|
|
43
|
|
|
59
|
|
|
18.5
|
|
|
16.5
|
|
|
58,812
|
|
|
52,458
|
|
||||
|
|
$1,282.4
|
|
|
|
$1,269.2
|
|
|
13,137
|
|
|
13,897
|
|
|
|
$191.0
|
|
|
|
$180.4
|
|
|
85,164
|
|
|
77,196
|
|
|
25
|
|
|
Electric Margins
|
|
Gas Margins
|
||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||
IPL
|
|
$10
|
|
|
|
$20
|
|
|
|
$5
|
|
|
|
$1
|
|
WPL
|
4
|
|
|
12
|
|
|
3
|
|
|
2
|
|
||||
Total Alliant Energy
|
|
$14
|
|
|
|
$32
|
|
|
|
$8
|
|
|
|
$3
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||
Impact of IPL’s retail electric interim and final base rate increases effective April 2019 and May 2018, respectively (a)
|
|
$102
|
|
|
|
$102
|
|
|
|
$—
|
|
Higher margins at WPL from earning on increasing rate base for rates effective January 2019
|
58
|
|
|
—
|
|
|
58
|
|
|||
Higher revenues at WPL due to changes in the amounts recorded in 2019 and 2018 for WPL’s earnings sharing mechanism (2018 reflected higher sharing of WPL’s earnings than in 2019)
|
15
|
|
|
—
|
|
|
15
|
|
|||
Higher revenues at IPL related to changes in recovery amounts for energy efficiency costs through the energy efficiency rider (offset by changes in energy efficiency expense)
|
10
|
|
|
10
|
|
|
—
|
|
|||
Higher revenues at IPL due to changes in electric tax benefit rider credits on customers’ bills (offset by changes in income tax expense)
|
9
|
|
|
9
|
|
|
—
|
|
|||
Estimated changes in sales volumes caused by temperatures
|
(18
|
)
|
|
(10
|
)
|
|
(8
|
)
|
|||
Other (partially due to lower industrial sales at IPL)
|
(20
|
)
|
|
(14
|
)
|
|
(6
|
)
|
|||
|
|
$156
|
|
|
|
$97
|
|
|
|
$59
|
|
(a)
|
IPL’s interim retail electric base rate increase effective April 1, 2019 was reduced by anticipated production tax credits for IPL’s new wind generation placed in service in March 2019. This reduction in revenue requirement is expected to be offset by a reduction in income tax expense resulting from production tax credits recognized from the new wind generation. Additionally, the interim retail electric base rate increase was reduced by $8 million as a result of the partial refund agreed to as part of the rate review settlement. Refer to Note 2 for further discussion.
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||
Impact of IPL’s retail gas final base rate increase effective January 2019
|
|
$9
|
|
|
|
$9
|
|
|
|
$—
|
|
Higher margins at WPL from earning on increasing rate base for rates effective January 2019
|
9
|
|
|
—
|
|
|
9
|
|
|||
Estimated changes in sales volumes caused by temperatures
|
5
|
|
|
4
|
|
|
1
|
|
|||
Lower revenues at IPL related to changes in recovery amounts for energy efficiency costs through the energy efficiency rider (offset by changes in energy efficiency expense)
|
(7
|
)
|
|
(7
|
)
|
|
—
|
|
|||
Other
|
3
|
|
|
2
|
|
|
2
|
|
|||
|
|
$19
|
|
|
|
$8
|
|
|
|
$12
|
|
|
26
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||
Higher operation expense at AEF due to new acquisitions
|
|
($39
|
)
|
|
|
$—
|
|
|
|
$—
|
|
Higher energy efficiency cost recovery amortizations at WPL pursuant to authorization from PSCW rate order effective January 2019
|
(15
|
)
|
|
—
|
|
|
(15
|
)
|
|||
Higher performance compensation expense
|
(9
|
)
|
|
(5
|
)
|
|
(4
|
)
|
|||
Higher energy efficiency expense at IPL (offset by higher electric revenues and lower gas revenues)
|
(2
|
)
|
|
(2
|
)
|
|
—
|
|
|||
Other
|
(1
|
)
|
|
5
|
|
|
—
|
|
|||
|
|
($66
|
)
|
|
|
($2
|
)
|
|
|
($19
|
)
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||
Higher interest expense primarily due to higher average outstanding long-term debt balances
|
|
($26
|
)
|
|
|
($8
|
)
|
|
|
($4
|
)
|
Lower equity income due to decreased earnings from non-utility wind farm resulting from an acceleration of earnings in 2018 due to Federal Tax Reform (Refer to Note 6 for more details)
|
(10
|
)
|
|
—
|
|
|
—
|
|
|||
Higher equity income due to increased earnings from ATC resulting from return on equity reserve adjustments recorded in 2019 related to the FERC decision regarding MISO transmission owners’ authorized return on equity (Refer to Note 17(h) for more details)
|
6
|
|
|
—
|
|
|
—
|
|
|||
Higher AFUDC primarily due to changes in CWIP balances related to IPL’s new wind generation and WPL’s West Riverside Energy Center
|
17
|
|
|
7
|
|
|
10
|
|
|||
Other
|
(4
|
)
|
|
(4
|
)
|
|
(2
|
)
|
|||
|
|
($17
|
)
|
|
|
($5
|
)
|
|
|
$4
|
|
•
|
Financing Plans - Alliant Energy currently expects to issue up to $250 million of common stock in 2020 through the equity forward agreements that were executed in November 2019 and its Shareowner Direct Plan. IPL, WPL and AEF currently expect to issue up to $300 million, $350 million and $300 million of long-term debt in 2020, respectively. IPL, WPL and AEF have $200 million, $150 million and $300 million of long-term debt maturing in 2020, respectively.
|
•
|
Common Stock Dividends - Alliant Energy announced a 7% increase in its targeted 2020 annual common stock dividend to $1.52 per share, which is equivalent to a quarterly rate of $0.38 per share, beginning with the February 2020 dividend payment. The timing and amount of future dividends is subject to an approved dividend declaration from Alliant Energy’s Board of Directors, and is dependent upon earnings expectations, capital requirements, and general financial business conditions, among other factors.
|
•
|
Higher Earnings on Increasing Rate Base - Alliant Energy and IPL currently expect an increase in earnings in 2020 compared to 2019 due to impacts from increasing revenue requirements from IPL’s retail electric and gas rate reviews (2020 Forward-looking Test Period). IPL’s and WPL’s 2020 increased revenue requirements are expected to be offset by returning to customers a portion of the excess deferred income tax credits from Federal Tax Reform.
|
•
|
Depreciation and Amortization Expenses - Alliant Energy, IPL and WPL currently expect an increase in depreciation and amortization expenses in 2020 compared to 2019 due to property additions, including IPL’s expansion of wind generation and WPL’s West Riverside natural gas-fired EGU.
|
•
|
Interest Expense - Alliant Energy currently expects interest expense to increase in 2020 compared to 2019 primarily due to financings completed in 2019 and planned in 2020 as discussed above.
|
•
|
Allowance for Funds Used During Construction - Alliant Energy currently expects AFUDC to decrease in 2020 compared to 2019 primarily due to decreased CWIP balances related to IPL’s wind generation that was placed in service in 2019 and is expected to be placed in service in 2020, and WPL’s West Riverside Energy Center, which is currently expected to be placed in service in the first half of 2020.
|
|
27
|
|
•
|
Pending Refunds Related to Transmission Expense - Alliant Energy currently expects to receive refunds related to the MISO transmission owner return on equity complaints later in 2020. These refunds are expected to be provided to IPL and WPL customers without an expected impact to earnings.
|
•
|
Reduce air emissions for sulfur dioxide by 90%, nitrogen oxide by 80% and mercury by 90% from 2005 levels, which it achieved in 2019.
|
•
|
Reduce CO2 emissions from its fossil-fueled generation 40% by 2030 and 80% by 2050 from 2005 levels.
|
•
|
Reduce water supply needs from its fossil-fueled generation 75% by 2030 from 2005 levels.
|
•
|
Renewables of at least 30% of Alliant Energy’s overall energy mix by 2030.
|
•
|
Eliminate existing coal-fired EGUs from Alliant Energy’s overall energy mix by 2050.
|
|
|
|
|
Actual/Expected
|
|
|
Wind Site
|
|
Nameplate Capacity
|
|
In-service Date
|
|
Location
|
Upland Prairie
|
|
303 MW
|
|
March 2019
|
|
Clay and Dickinson Counties, Iowa
|
English Farms
|
|
172 MW
|
|
March 2019
|
|
Poweshiek County, Iowa
|
Whispering Willow Expansion
|
|
201 MW
|
|
January 2020
|
|
Franklin County, Iowa
|
Golden Plains
|
|
Up to 200 MW
|
|
2020
|
|
Winnebago and Kossuth Counties, Iowa
|
Richland
|
|
Up to 130 MW
|
|
2020
|
|
Sac County, Iowa
|
|
28
|
|
Counterparty
|
|
Option Amount
|
|
Option Timing
|
Wisconsin Public Service Corporation (WPSC)
|
|
Up to 200 MW (no more than 100 MW to be acquired in first two years) (a)
|
|
Up to four years following the in-service date
|
Madison Gas and Electric Company (MGE)
|
|
Up to 50 MW (no more than 25 MW to be acquired in first two years)
|
|
Up to five years following the in-service date
|
Electric cooperatives
|
|
Approximately 60 MW
|
|
Exercised January 2018
|
(a)
|
If WPSC exercises its options, WPL may exercise reciprocal options, subject to approval by the PSCW, to purchase up to 200 MW of any natural-gas combined-cycle EGU that either WPSC or its affiliated utility, Wisconsin Electric Power Company, places in service within 10 years of the date West Riverside is placed in service.
|
|
29
|
|
|
|
|
Average
|
|
Authorized Return
|
|
Common Equity
|
|
|
||
|
Regulatory
|
|
Rate Base
|
|
on Common
|
|
Component of Regulatory
|
|
Effective
|
||
|
Body
|
|
(in millions)
|
|
Equity (a)
|
|
Capital Structure
|
|
Date
|
||
IPL Retail Electric (2020 Test Period)
|
|
|
|
|
|
|
|
|
|
||
Marshalltown (b)
|
IUB
|
|
|
$559
|
|
|
11.00%
|
|
51.0%
|
|
(c)
|
Emery (b)
|
IUB
|
|
165
|
|
|
12.23%
|
|
51.0%
|
|
(c)
|
|
Whispering Willow - East (b)
|
IUB
|
|
163
|
|
|
11.70%
|
|
51.0%
|
|
(c)
|
|
Renewable energy rider (b)(d)
|
IUB
|
|
1,335
|
|
|
10.65%
|
|
51.0%
|
|
(c)
|
|
Other (b)
|
IUB
|
|
3,767
|
|
|
9.50%
|
|
51.0%
|
|
(c)
|
|
IPL Retail Gas (2020 Test Period) (b)
|
IUB
|
|
557
|
|
|
9.60%
|
|
51.0%
|
|
1/10/2020
|
|
IPL Wholesale Electric
|
FERC
|
|
119
|
|
|
10.97%
|
|
50.4%
|
|
1/1/2019
|
|
WPL Retail Electric and Gas
|
|
|
|
|
|
|
|
|
|
||
Electric (2020 Test Period) (e)
|
PSCW
|
|
3,955
|
|
|
10.00%
|
|
52.5%
|
|
1/1/2020
|
|
Gas (2020 Test Period) (e)
|
PSCW
|
|
387
|
|
|
10.00%
|
|
52.5%
|
|
1/1/2020
|
|
WPL Wholesale Electric
|
FERC
|
|
239
|
|
|
10.90%
|
|
55.0%
|
|
1/1/2019
|
(a)
|
Authorized returns on common equity may not be indicative of actual returns earned or projections of future returns.
|
(b)
|
Average rate base amounts reflect IPL’s allocated retail share of rate base and do not include CWIP, and were calculated using a forecasted 13-month average for the test period.
|
|
30
|
|
(c)
|
Final retail electric rates are expected to be effective by the end of the first quarter of 2020.
|
(d)
|
Average rate base amounts recovered through IPL’s new renewable energy rider mechanism include construction costs incurred to fund IPL’s most recent 1,000 MW of new wind generation (11.00% return on common equity), production tax credit carryforwards for the most recent 1,000 MW of new wind generation (5.00% return on common equity) and certain transmission facilities classified as intangible assets (9.50% return on common equity).
|
(e)
|
Average rate base amounts reflect WPL’s allocated retail share of rate base and do not include CWIP or a cash working capital allowance, and were calculated using a forecasted 13-month average for the test period. The PSCW provides a return on selected CWIP and a cash working capital allowance by adjusting the percentage return on rate base.
|
|
31
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||||||
Cash, cash equivalents and restricted cash, January 1
|
|
$25.5
|
|
|
|
$33.9
|
|
|
|
$12.4
|
|
|
|
$7.2
|
|
|
|
$9.2
|
|
|
|
$24.2
|
|
Cash flows from (used for):
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Operating activities
|
660.4
|
|
|
527.7
|
|
|
172.9
|
|
|
(5.0
|
)
|
|
423.2
|
|
|
457.0
|
|
||||||
Investing activities
|
(1,287.3
|
)
|
|
(1,066.8
|
)
|
|
(667.0
|
)
|
|
(429.4
|
)
|
|
(557.2
|
)
|
|
(607.5
|
)
|
||||||
Financing activities
|
619.1
|
|
|
530.7
|
|
|
491.0
|
|
|
439.6
|
|
|
129.2
|
|
|
135.5
|
|
||||||
Net increase (decrease)
|
(7.8
|
)
|
|
(8.4
|
)
|
|
(3.1
|
)
|
|
5.2
|
|
|
(4.8
|
)
|
|
(15.0
|
)
|
||||||
Cash, cash equivalents and restricted cash, December 31
|
|
$17.7
|
|
|
|
$25.5
|
|
|
|
$9.3
|
|
|
|
$12.4
|
|
|
|
$4.4
|
|
|
|
$9.2
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||
Higher collections from IPL’s retail electric and gas base rate increases
|
|
$111
|
|
|
|
$111
|
|
|
|
$—
|
|
Changes in amounts refunded to customers related to Federal Tax Reform
|
54
|
|
|
15
|
|
|
39
|
|
|||
Changes in income taxes paid/refunded
|
26
|
|
|
31
|
|
|
(43
|
)
|
|||
Contributions to qualified defined benefit pension plans in 2019
|
(32
|
)
|
|
(16
|
)
|
|
(16
|
)
|
|||
Changes in levels of production fuel
|
(27
|
)
|
|
(10
|
)
|
|
(17
|
)
|
|||
Changes in interest payments
|
(20
|
)
|
|
(1
|
)
|
|
(4
|
)
|
|||
Decreased collections from IPL’s and WPL’s retail customers caused by temperature impacts on electric and gas sales
|
(13
|
)
|
|
(6
|
)
|
|
(7
|
)
|
|||
Timing of intercompany payments and receipts
|
—
|
|
|
37
|
|
|
4
|
|
|||
Other (primarily due to other changes in working capital)
|
34
|
|
|
17
|
|
|
10
|
|
|||
|
|
$133
|
|
|
|
$178
|
|
|
|
($34
|
)
|
|
2019
|
|
2018
|
||||
IPL
|
|
$7
|
|
|
|
($24
|
)
|
WPL
|
(29
|
)
|
|
14
|
|
||
Other subsidiaries
|
43
|
|
|
5
|
|
||
Alliant Energy
|
|
$21
|
|
|
|
($5
|
)
|
|
32
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||
Changes in the amount of cash receipts on sold receivables
|
|
($192
|
)
|
|
|
($192
|
)
|
|
|
$—
|
|
Expenditures for new acquisitions at AEF in 2019
|
(13
|
)
|
|
—
|
|
|
—
|
|
|||
Lower (higher) utility construction and acquisition expenditures (a)
|
30
|
|
|
(29
|
)
|
|
59
|
|
|||
Other
|
(46
|
)
|
|
(17
|
)
|
|
(9
|
)
|
|||
|
|
($221
|
)
|
|
|
($238
|
)
|
|
|
$50
|
|
(a)
|
Largely due to lower expenditures related to WPL’s acquisition of a partial interest in the Forward Wind Energy Center in 2018, WPL’s West Riverside facility and IPL’s advanced metering infrastructure, partially offset by higher expenditures related to expansion of wind generation at IPL and WPL.
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
|||||||||||||||||||||||||||||||||
|
2020
|
2021
|
2022
|
2023
|
|
2020
|
2021
|
2022
|
2023
|
|
2020
|
2021
|
2022
|
2023
|
||||||||||||||||||||||||
Generation:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||||||||
Renewable projects
|
|
$260
|
|
|
$110
|
|
|
$275
|
|
|
$390
|
|
|
|
$135
|
|
|
$—
|
|
|
$—
|
|
|
$—
|
|
|
|
$125
|
|
|
$110
|
|
|
$275
|
|
|
$390
|
|
Other
|
205
|
|
140
|
|
170
|
|
90
|
|
|
90
|
|
85
|
|
125
|
|
50
|
|
|
115
|
|
55
|
|
45
|
|
40
|
|
||||||||||||
Distribution:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||||||||
Electric systems
|
570
|
|
535
|
|
525
|
|
540
|
|
|
320
|
|
285
|
|
270
|
|
310
|
|
|
250
|
|
250
|
|
255
|
|
230
|
|
||||||||||||
Gas systems
|
185
|
|
80
|
|
130
|
|
105
|
|
|
50
|
|
45
|
|
95
|
|
65
|
|
|
135
|
|
35
|
|
35
|
|
40
|
|
||||||||||||
Other
|
205
|
|
180
|
|
235
|
|
245
|
|
|
30
|
|
10
|
|
10
|
|
15
|
|
|
15
|
|
10
|
|
20
|
|
15
|
|
||||||||||||
|
|
$1,425
|
|
|
$1,045
|
|
|
$1,335
|
|
|
$1,370
|
|
|
|
$625
|
|
|
$425
|
|
|
$500
|
|
|
$440
|
|
|
|
$640
|
|
|
$460
|
|
|
$630
|
|
|
$715
|
|
|
33
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||
Lower (higher) payments to retire long-term debt
|
|
$599
|
|
|
|
$350
|
|
|
|
($250
|
)
|
Higher net proceeds from common stock issuances
|
194
|
|
|
—
|
|
|
—
|
|
|||
Higher (lower) net proceeds from issuance of long-term debt
|
(550
|
)
|
|
100
|
|
|
350
|
|
|||
Net changes in the amount of commercial paper and other short-term borrowings outstanding
|
(130
|
)
|
|
(101
|
)
|
|
(18
|
)
|
|||
Lower capital contributions from IPL’s and WPL’s parent company, Alliant Energy
|
—
|
|
|
(300
|
)
|
|
(75
|
)
|
|||
Other
|
(25
|
)
|
|
2
|
|
|
(13
|
)
|
|||
|
|
$88
|
|
|
|
$51
|
|
|
|
($6
|
)
|
|
Initial Authorization and Remaining Capacity as of December 31, 2019
|
||
Long-term debt securities issuances in aggregate
|
|
$700
|
|
Short-term debt securities outstanding at any time (including borrowings from its parent)
|
400
|
|
|
Preferred stock issuances in aggregate
|
300
|
|
|
34
|
|
|
|
Standard & Poor’s Ratings Services
|
|
Moody’s Investors Service
|
Alliant Energy:
|
Corporate/issuer
|
A-
|
|
Baa2
|
|
Commercial paper
|
A-2
|
|
P-2
|
|
Senior unsecured long-term debt
|
N/A
|
|
N/A
|
|
Outlook
|
Stable
|
|
Stable
|
IPL:
|
Corporate/issuer
|
A-
|
|
Baa1
|
|
Commercial paper
|
A-2
|
|
P-2
|
|
Senior unsecured long-term debt
|
A-
|
|
Baa1
|
|
Preferred stock
|
BBB
|
|
Baa3
|
|
Outlook
|
Stable
|
|
Stable
|
WPL:
|
Corporate/issuer
|
A
|
|
A3
|
|
Commercial paper
|
A-1
|
|
P-2
|
|
Senior unsecured long-term debt
|
A
|
|
A3
|
|
Outlook
|
Stable
|
|
Stable
|
|
35
|
|
Alliant Energy
|
2020
|
|
2021
|
|
2022
|
|
2023
|
|
2024
|
|
Thereafter
|
|
Total
|
||||||||||||||
|
$499
|
|
|
|
$223
|
|
|
|
$160
|
|
|
|
$128
|
|
|
|
$84
|
|
|
|
$199
|
|
|
|
$1,293
|
|
|
657
|
|
|
8
|
|
|
333
|
|
|
408
|
|
|
509
|
|
|
4,325
|
|
|
6,240
|
|
||||||||
Interest - long-term debt obligations
|
251
|
|
|
237
|
|
|
237
|
|
|
220
|
|
|
213
|
|
|
2,182
|
|
|
3,340
|
|
|||||||
110
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
110
|
|
||||||||
77
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
77
|
|
||||||||
2
|
|
|
2
|
|
|
2
|
|
|
2
|
|
|
2
|
|
|
10
|
|
|
20
|
|
||||||||
|
|
$1,596
|
|
|
|
$470
|
|
|
|
$732
|
|
|
|
$758
|
|
|
|
$808
|
|
|
|
$6,716
|
|
|
|
$11,080
|
|
IPL
|
2020
|
|
2021
|
|
2022
|
|
2023
|
|
2024
|
|
Thereafter
|
|
Total
|
||||||||||||||
|
$315
|
|
|
|
$126
|
|
|
|
$91
|
|
|
|
$80
|
|
|
|
$56
|
|
|
|
$99
|
|
|
|
$767
|
|
|
200
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
500
|
|
|
2,475
|
|
|
3,175
|
|
||||||||
Interest - long-term debt obligations
|
133
|
|
|
125
|
|
|
125
|
|
|
125
|
|
|
125
|
|
|
1,276
|
|
|
1,909
|
|
|||||||
110
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
110
|
|
||||||||
60
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
60
|
|
||||||||
1
|
|
|
1
|
|
|
1
|
|
|
1
|
|
|
1
|
|
|
7
|
|
|
12
|
|
||||||||
|
|
$819
|
|
|
|
$252
|
|
|
|
$217
|
|
|
|
$206
|
|
|
|
$682
|
|
|
|
$3,857
|
|
|
|
$6,033
|
|
WPL
|
2020
|
|
2021
|
|
2022
|
|
2023
|
|
2024
|
|
Thereafter
|
|
Total
|
||||||||||||||
|
$176
|
|
|
|
$89
|
|
|
|
$63
|
|
|
|
$43
|
|
|
|
$23
|
|
|
|
$99
|
|
|
|
$493
|
|
|
150
|
|
|
—
|
|
|
250
|
|
|
—
|
|
|
—
|
|
|
1,550
|
|
|
1,950
|
|
||||||||
Interest - long-term debt obligations
|
84
|
|
|
80
|
|
|
80
|
|
|
74
|
|
|
74
|
|
|
862
|
|
|
1,254
|
|
|||||||
17
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
17
|
|
||||||||
1
|
|
|
1
|
|
|
1
|
|
|
1
|
|
|
1
|
|
|
3
|
|
|
8
|
|
||||||||
15
|
|
|
15
|
|
|
15
|
|
|
15
|
|
|
15
|
|
|
5
|
|
|
80
|
|
||||||||
|
|
$443
|
|
|
|
$185
|
|
|
|
$409
|
|
|
|
$133
|
|
|
|
$113
|
|
|
|
$2,519
|
|
|
|
$3,802
|
|
|
36
|
|
|
37
|
|
|
38
|
|
|
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
||||||||||||
Change in Actuarial Assumption
|
|
Impact on Projected Benefit Obligation at December 31, 2019
|
|
Impact on 2020 Net Periodic Benefit Costs
|
|
Impact on Accumulated Benefit Obligation at December 31, 2019
|
|
Impact on 2020 Net Periodic Benefit Costs
|
||||||||
Alliant Energy
|
|
|
|
|
|
|
|
|
||||||||
1% change in discount rate
|
|
|
$163
|
|
|
|
$10
|
|
|
|
$20
|
|
|
|
$2
|
|
1% change in expected rate of return
|
|
N/A
|
|
|
9
|
|
|
N/A
|
|
|
1
|
|
||||
IPL
|
|
|
|
|
|
|
|
|
||||||||
1% change in discount rate
|
|
76
|
|
|
5
|
|
|
8
|
|
|
1
|
|
||||
1% change in expected rate of return
|
|
N/A
|
|
|
4
|
|
|
N/A
|
|
|
1
|
|
||||
WPL
|
|
|
|
|
|
|
|
|
||||||||
1% change in discount rate
|
|
72
|
|
|
5
|
|
|
8
|
|
|
1
|
|
||||
1% change in expected rate of return
|
|
N/A
|
|
|
4
|
|
|
N/A
|
|
|
—
|
|
|
39
|
|
|
40
|
|
•
|
We tested the design and operating effectiveness of management’s controls over the evaluation of regulatory assets and liabilities, including the monitoring and evaluation of regulatory developments that may affect the likelihood of recovering costs in future rates or of a future reduction in rates.
|
•
|
We inspected the Company’s analysis supporting the probability of recovery for regulatory assets or refund or future reduction in rates for regulatory liabilities not yet addressed in a regulatory order to assess the reasonability of management’s assertions.
|
•
|
We inquired of management regarding current events impacting the Company and inspected minutes of the board of directors and other committees of the Company and evaluated whether matters were identified that may have an impact on recorded regulatory asset and liability balances.
|
•
|
We read relevant regulatory orders, regulatory statutes, interpretations, procedural memorandums, filings made by interveners, and other publicly available information issued by the regulatory agencies that pertain to the Company as well as to other relevant public utilities. We evaluated the external information and assessed whether there were matters in such information that would be contradictory to the assessment of recovery of the Company’s regulatory assets or refund of regulatory liabilities.
|
•
|
We obtained representation letters from management as well as legal letters from internal and external legal counsel and evaluated such letters to assess whether information was present that would be relevant to the assessment of recovery of the Company’s regulatory assets or refund of regulatory liabilities.
|
•
|
We evaluated the Company’s disclosures related to the impacts of rate regulation and regulatory developments, including disclosures related to the regulatory balances recorded.
|
|
41
|
|
|
Year Ended December 31,
|
||||||||||
|
2019
|
|
2018
|
|
2017
|
||||||
|
(in millions, except per share amounts)
|
||||||||||
Revenues:
|
|
|
|
|
|
||||||
Electric utility
|
|
$3,063.6
|
|
|
|
$3,000.3
|
|
|
|
$2,894.7
|
|
Gas utility
|
455.2
|
|
|
446.6
|
|
|
400.9
|
|
|||
Other utility
|
46.5
|
|
|
48.0
|
|
|
47.5
|
|
|||
Non-utility
|
82.4
|
|
|
39.6
|
|
|
39.1
|
|
|||
Total revenues
|
3,647.7
|
|
|
3,534.5
|
|
|
3,382.2
|
|
|||
Operating expenses:
|
|
|
|
|
|
||||||
Electric production fuel and purchased power
|
776.7
|
|
|
855.0
|
|
|
818.1
|
|
|||
Electric transmission service
|
481.4
|
|
|
495.7
|
|
|
480.9
|
|
|||
Cost of gas sold
|
221.7
|
|
|
232.3
|
|
|
211.4
|
|
|||
Other operation and maintenance
|
712.2
|
|
|
645.8
|
|
|
633.2
|
|
|||
Depreciation and amortization
|
567.2
|
|
|
506.9
|
|
|
461.8
|
|
|||
Taxes other than income taxes
|
110.8
|
|
|
104.4
|
|
|
105.6
|
|
|||
Total operating expenses
|
2,870.0
|
|
|
2,840.1
|
|
|
2,711.0
|
|
|||
Operating income
|
777.7
|
|
|
694.4
|
|
|
671.2
|
|
|||
Other (income) and deductions:
|
|
|
|
|
|
||||||
Interest expense
|
272.9
|
|
|
247.0
|
|
|
215.6
|
|
|||
Equity income from unconsolidated investments, net
|
(53.0
|
)
|
|
(54.6
|
)
|
|
(44.8
|
)
|
|||
Allowance for funds used during construction
|
(92.7
|
)
|
|
(75.6
|
)
|
|
(49.7
|
)
|
|||
Other
|
14.4
|
|
|
7.6
|
|
|
17.3
|
|
|||
Total other (income) and deductions
|
141.6
|
|
|
124.4
|
|
|
138.4
|
|
|||
Income from continuing operations before income taxes
|
636.1
|
|
|
570.0
|
|
|
532.8
|
|
|||
Income taxes
|
68.7
|
|
|
47.7
|
|
|
66.7
|
|
|||
Income from continuing operations, net of tax
|
567.4
|
|
|
522.3
|
|
|
466.1
|
|
|||
Income from discontinued operations, net of tax
|
—
|
|
|
—
|
|
|
1.4
|
|
|||
Net income
|
567.4
|
|
|
522.3
|
|
|
467.5
|
|
|||
Preferred dividend requirements of Interstate Power and Light Company
|
10.2
|
|
|
10.2
|
|
|
10.2
|
|
|||
Net income attributable to Alliant Energy common shareowners
|
|
$557.2
|
|
|
|
$512.1
|
|
|
|
$457.3
|
|
Weighted average number of common shares outstanding:
|
|
|
|
|
|
||||||
Basic
|
238.5
|
|
|
233.6
|
|
|
229.7
|
|
|||
Diluted
|
239.0
|
|
|
233.6
|
|
|
229.7
|
|
|||
Earnings per weighted average common share attributable to Alliant Energy common shareowners:
|
|
|
|
|
|
||||||
Basic
|
|
$2.34
|
|
|
|
$2.19
|
|
|
|
$1.99
|
|
Diluted
|
|
$2.33
|
|
|
|
$2.19
|
|
|
|
$1.99
|
|
Amounts attributable to Alliant Energy common shareowners:
|
|
|
|
|
|
||||||
Income from continuing operations, net of tax
|
|
$557.2
|
|
|
|
$512.1
|
|
|
|
$455.9
|
|
Income from discontinued operations, net of tax
|
—
|
|
|
—
|
|
|
1.4
|
|
|||
Net income
|
|
$557.2
|
|
|
|
$512.1
|
|
|
|
$457.3
|
|
|
42
|
|
|
December 31,
|
||||||
|
2019
|
|
2018
|
||||
|
(in millions, except per
share and share amounts)
|
||||||
ASSETS
|
|
|
|
||||
Current assets:
|
|
|
|
||||
Cash and cash equivalents
|
|
$16.3
|
|
|
|
$20.9
|
|
Accounts receivable, less allowance for doubtful accounts
|
402.1
|
|
|
350.4
|
|
||
Production fuel, at weighted average cost
|
77.7
|
|
|
61.4
|
|
||
Gas stored underground, at weighted average cost
|
49.1
|
|
|
49.0
|
|
||
Materials and supplies, at weighted average cost
|
100.5
|
|
|
101.4
|
|
||
Regulatory assets
|
86.4
|
|
|
79.8
|
|
||
Prepaid gross receipts tax
|
41.7
|
|
|
42.2
|
|
||
Other
|
101.7
|
|
|
80.0
|
|
||
Total current assets
|
875.5
|
|
|
785.1
|
|
||
Property, plant and equipment, net
|
13,527.1
|
|
|
12,462.4
|
|
||
Investments:
|
|
|
|
||||
ATC Holdings
|
320.1
|
|
|
293.6
|
|
||
Other
|
147.7
|
|
|
137.7
|
|
||
Total investments
|
467.8
|
|
|
431.3
|
|
||
Other assets:
|
|
|
|
||||
Regulatory assets
|
1,758.3
|
|
|
1,657.5
|
|
||
Deferred charges and other
|
72.0
|
|
|
89.7
|
|
||
Total other assets
|
1,830.3
|
|
|
1,747.2
|
|
||
Total assets
|
|
$16,700.7
|
|
|
|
$15,426.0
|
|
LIABILITIES AND EQUITY
|
|
|
|
||||
Current liabilities:
|
|
|
|
||||
Current maturities of long-term debt
|
|
$657.2
|
|
|
|
$256.5
|
|
Commercial paper
|
337.4
|
|
|
441.2
|
|
||
Accounts payable
|
422.3
|
|
|
543.3
|
|
||
Regulatory liabilities
|
212.0
|
|
|
142.7
|
|
||
Other
|
425.2
|
|
|
260.4
|
|
||
Total current liabilities
|
2,054.1
|
|
|
1,644.1
|
|
||
Long-term debt, net (excluding current portion)
|
5,533.0
|
|
|
5,246.3
|
|
||
Other liabilities:
|
|
|
|
||||
Deferred tax liabilities
|
1,714.0
|
|
|
1,603.1
|
|
||
Regulatory liabilities
|
1,211.6
|
|
|
1,350.5
|
|
||
Pension and other benefit obligations
|
484.0
|
|
|
509.1
|
|
||
Other
|
298.9
|
|
|
287.2
|
|
||
Total other liabilities
|
3,708.5
|
|
|
3,749.9
|
|
||
|
|
|
|||||
Equity:
|
|
|
|
||||
Alliant Energy Corporation common equity:
|
|
|
|
||||
Common stock - $0.01 par value - 480,000,000 shares authorized; 245,022,800 and 236,063,279 shares outstanding
|
2.5
|
|
|
2.4
|
|
||
Additional paid-in capital
|
2,445.9
|
|
|
2,045.5
|
|
||
Retained earnings
|
2,765.4
|
|
|
2,545.9
|
|
||
Accumulated other comprehensive income
|
1.3
|
|
|
1.7
|
|
||
Shares in deferred compensation trust - 381,232 and 384,580 shares at a weighted average cost of $26.24 and $25.60 per share
|
(10.0
|
)
|
|
(9.8
|
)
|
||
Total Alliant Energy Corporation common equity
|
5,205.1
|
|
|
4,585.7
|
|
||
Cumulative preferred stock of Interstate Power and Light Company
|
200.0
|
|
|
200.0
|
|
||
Total equity
|
5,405.1
|
|
|
4,785.7
|
|
||
Total liabilities and equity
|
|
$16,700.7
|
|
|
|
$15,426.0
|
|
|
43
|
|
|
Year Ended December 31,
|
||||||||||
|
2019
|
|
2018
|
|
2017
|
||||||
|
(in millions)
|
||||||||||
Cash flows from operating activities:
|
|
|
|
|
|
||||||
Net income
|
|
$567.4
|
|
|
|
$522.3
|
|
|
|
$467.5
|
|
Adjustments to reconcile net income to net cash flows from operating activities:
|
|
|
|
|
|
||||||
Depreciation and amortization
|
567.2
|
|
|
506.9
|
|
|
461.8
|
|
|||
Deferred tax expense and tax credits
|
55.6
|
|
|
67.0
|
|
|
139.6
|
|
|||
Equity component of allowance for funds used during construction
|
(65.5
|
)
|
|
(51.4
|
)
|
|
(33.6
|
)
|
|||
Other
|
19.9
|
|
|
7.7
|
|
|
21.7
|
|
|||
Other changes in assets and liabilities:
|
|
|
|
|
|
||||||
Accounts receivable
|
(471.7
|
)
|
|
(475.4
|
)
|
|
(441.2
|
)
|
|||
Regulatory assets
|
(16.2
|
)
|
|
(16.2
|
)
|
|
(130.8
|
)
|
|||
Regulatory liabilities
|
(40.3
|
)
|
|
1.3
|
|
|
(83.8
|
)
|
|||
Deferred income taxes
|
53.8
|
|
|
55.9
|
|
|
81.7
|
|
|||
Other
|
(9.8
|
)
|
|
(90.4
|
)
|
|
38.7
|
|
|||
Net cash flows from operating activities
|
660.4
|
|
|
527.7
|
|
|
521.6
|
|
|||
Cash flows used for investing activities:
|
|
|
|
|
|
||||||
Construction and acquisition expenditures:
|
|
|
|
|
|
||||||
Utility business
|
(1,538.4
|
)
|
|
(1,568.3
|
)
|
|
(1,281.8
|
)
|
|||
Other
|
(101.7
|
)
|
|
(65.6
|
)
|
|
(185.1
|
)
|
|||
Cash receipts on sold receivables
|
413.2
|
|
|
605.3
|
|
|
461.8
|
|
|||
Other
|
(60.4
|
)
|
|
(38.2
|
)
|
|
(28.3
|
)
|
|||
Net cash flows used for investing activities
|
(1,287.3
|
)
|
|
(1,066.8
|
)
|
|
(1,033.4
|
)
|
|||
Cash flows from financing activities:
|
|
|
|
|
|
||||||
Common stock dividends
|
(337.7
|
)
|
|
(312.2
|
)
|
|
(288.3
|
)
|
|||
Proceeds from issuance of common stock, net
|
390.3
|
|
|
196.6
|
|
|
149.6
|
|
|||
Proceeds from issuance of long-term debt
|
950.0
|
|
|
1,500.0
|
|
|
550.0
|
|
|||
Payments to retire long-term debt
|
(256.5
|
)
|
|
(855.7
|
)
|
|
(4.6
|
)
|
|||
Net change in commercial paper and other short-term borrowings
|
(103.8
|
)
|
|
26.0
|
|
|
171.1
|
|
|||
Other
|
(23.2
|
)
|
|
(24.0
|
)
|
|
(45.2
|
)
|
|||
Net cash flows from financing activities
|
619.1
|
|
|
530.7
|
|
|
532.6
|
|
|||
Net increase (decrease) in cash, cash equivalents and restricted cash
|
(7.8
|
)
|
|
(8.4
|
)
|
|
20.8
|
|
|||
Cash, cash equivalents and restricted cash at beginning of period
|
25.5
|
|
|
33.9
|
|
|
13.1
|
|
|||
Cash, cash equivalents and restricted cash at end of period
|
|
$17.7
|
|
|
|
$25.5
|
|
|
|
$33.9
|
|
Supplemental cash flows information:
|
|
|
|
|
|
||||||
Cash (paid) refunded during the period for:
|
|
|
|
|
|
||||||
Interest
|
|
($267.9
|
)
|
|
|
($247.5
|
)
|
|
|
($212.6
|
)
|
Income taxes, net
|
|
$20.5
|
|
|
|
($5.0
|
)
|
|
|
($11.3
|
)
|
Significant non-cash investing and financing activities:
|
|
|
|
|
|
||||||
Accrued capital expenditures
|
|
$195.8
|
|
|
|
$299.5
|
|
|
|
$196.5
|
|
Beneficial interest obtained in exchange for securitized accounts receivable
|
|
$187.7
|
|
|
|
$119.4
|
|
|
|
$222.1
|
|
|
44
|
|
|
Total Alliant Energy Common Equity
|
|
|
|
|
||||||||||||||||||||||
|
|
|
|
|
|
|
Accumulated
|
|
Shares in
|
|
Cumulative
|
|
|
||||||||||||||
|
|
|
Additional
|
|
|
|
Other
|
|
Deferred
|
|
Preferred
|
|
|
||||||||||||||
|
Common
|
|
Paid-In
|
|
Retained
|
|
Comprehensive
|
|
Compensation
|
|
Stock
|
|
Total
|
||||||||||||||
|
Stock
|
|
Capital
|
|
Earnings
|
|
Income (Loss)
|
|
Trust
|
|
of IPL
|
|
Equity
|
||||||||||||||
|
(in millions)
|
||||||||||||||||||||||||||
2017:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||
Beginning balance
|
|
$2.3
|
|
|
|
$1,693.1
|
|
|
|
$2,177.0
|
|
|
|
($0.4
|
)
|
|
|
($10.0
|
)
|
|
|
$200.0
|
|
|
|
$4,062.0
|
|
Net income attributable to Alliant Energy common shareowners
|
|
|
|
|
457.3
|
|
|
|
|
|
|
|
|
457.3
|
|
||||||||||||
Common stock dividends ($1.26 per share)
|
|
|
|
|
(288.3
|
)
|
|
|
|
|
|
|
|
(288.3
|
)
|
||||||||||||
At-the-market offering program and Shareowner Direct Plan issuances
|
|
|
|
149.6
|
|
|
|
|
|
|
|
|
|
|
149.6
|
|
|||||||||||
Equity-based compensation plans and other
|
|
|
2.8
|
|
|
|
|
|
|
(1.1
|
)
|
|
|
|
1.7
|
|
|||||||||||
Other comprehensive loss, net of tax
|
|
|
|
|
|
|
(0.1
|
)
|
|
|
|
|
|
(0.1
|
)
|
||||||||||||
Ending balance
|
2.3
|
|
|
1,845.5
|
|
|
2,346.0
|
|
|
(0.5
|
)
|
|
(11.1
|
)
|
|
200.0
|
|
|
4,382.2
|
|
|||||||
2018:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||
Net income attributable to Alliant Energy common shareowners
|
|
|
|
|
512.1
|
|
|
|
|
|
|
|
|
512.1
|
|
||||||||||||
Common stock dividends ($1.34 per share)
|
|
|
|
|
(312.2
|
)
|
|
|
|
|
|
|
|
(312.2
|
)
|
||||||||||||
At-the-market offering program and Shareowner Direct Plan issuances
|
0.1
|
|
|
196.5
|
|
|
|
|
|
|
|
|
|
|
196.6
|
|
|||||||||||
Equity-based compensation plans and other
|
|
|
3.5
|
|
|
|
|
|
|
1.3
|
|
|
|
|
4.8
|
|
|||||||||||
Other comprehensive income, net of tax
|
|
|
|
|
|
|
2.2
|
|
|
|
|
|
|
2.2
|
|
||||||||||||
Ending balance
|
2.4
|
|
|
2,045.5
|
|
|
2,545.9
|
|
|
1.7
|
|
|
(9.8
|
)
|
|
200.0
|
|
|
4,785.7
|
|
|||||||
2019:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||
Net income attributable to Alliant Energy common shareowners
|
|
|
|
|
557.2
|
|
|
|
|
|
|
|
|
557.2
|
|
||||||||||||
Common stock dividends ($1.42 per share)
|
|
|
|
|
(337.7
|
)
|
|
|
|
|
|
|
|
(337.7
|
)
|
||||||||||||
Equity forward settlements and Shareowner Direct Plan issuances
|
0.1
|
|
|
390.2
|
|
|
|
|
|
|
|
|
|
|
390.3
|
|
|||||||||||
Equity-based compensation plans and other
|
|
|
10.2
|
|
|
|
|
|
|
(0.2
|
)
|
|
|
|
10.0
|
|
|||||||||||
Other comprehensive loss, net of tax
|
|
|
|
|
|
|
(0.4
|
)
|
|
|
|
|
|
(0.4
|
)
|
||||||||||||
Ending balance
|
|
$2.5
|
|
|
|
$2,445.9
|
|
|
|
$2,765.4
|
|
|
|
$1.3
|
|
|
|
($10.0
|
)
|
|
|
$200.0
|
|
|
|
$5,405.1
|
|
|
45
|
|
|
46
|
|
|
Year Ended December 31,
|
||||||||||
|
2019
|
|
2018
|
|
2017
|
||||||
|
(in millions)
|
||||||||||
Revenues:
|
|
|
|
|
|
||||||
Electric utility
|
|
$1,781.2
|
|
|
|
$1,731.1
|
|
|
|
$1,598.9
|
|
Gas utility
|
264.2
|
|
|
266.2
|
|
|
226.0
|
|
|||
Steam and other
|
44.2
|
|
|
45.0
|
|
|
45.4
|
|
|||
Total revenues
|
2,089.6
|
|
|
2,042.3
|
|
|
1,870.3
|
|
|||
Operating expenses:
|
|
|
|
|
|
||||||
Electric production fuel and purchased power
|
434.5
|
|
|
469.0
|
|
|
443.6
|
|
|||
Electric transmission service
|
340.2
|
|
|
352.9
|
|
|
310.4
|
|
|||
Cost of gas sold
|
119.9
|
|
|
129.6
|
|
|
115.6
|
|
|||
Other operation and maintenance
|
404.6
|
|
|
402.6
|
|
|
396.6
|
|
|||
Depreciation and amortization
|
326.7
|
|
|
283.5
|
|
|
245.0
|
|
|||
Taxes other than income taxes
|
60.9
|
|
|
53.9
|
|
|
55.0
|
|
|||
Total operating expenses
|
1,686.8
|
|
|
1,691.5
|
|
|
1,566.2
|
|
|||
Operating income
|
402.8
|
|
|
350.8
|
|
|
304.1
|
|
|||
Other (income) and deductions:
|
|
|
|
|
|
||||||
Interest expense
|
126.9
|
|
|
119.4
|
|
|
112.4
|
|
|||
Allowance for funds used during construction
|
(49.4
|
)
|
|
(42.2
|
)
|
|
(31.4
|
)
|
|||
Other
|
6.9
|
|
|
2.6
|
|
|
7.0
|
|
|||
Total other (income) and deductions
|
84.4
|
|
|
79.8
|
|
|
88.0
|
|
|||
Income before income taxes
|
318.4
|
|
|
271.0
|
|
|
216.1
|
|
|||
Income tax expense (benefit)
|
24.1
|
|
|
(3.2
|
)
|
|
(10.9
|
)
|
|||
Net income
|
294.3
|
|
|
274.2
|
|
|
227.0
|
|
|||
Preferred dividend requirements
|
10.2
|
|
|
10.2
|
|
|
10.2
|
|
|||
Net income available for common stock
|
|
$284.1
|
|
|
|
$264.0
|
|
|
|
$216.8
|
|
|
47
|
|
|
December 31,
|
||||||
|
2019
|
|
2018
|
||||
|
(in millions, except per
share and share amounts)
|
||||||
ASSETS
|
|
|
|
||||
Current assets:
|
|
|
|
||||
Cash and cash equivalents
|
|
$9.3
|
|
|
|
$9.7
|
|
Accounts receivable, less allowance for doubtful accounts
|
202.8
|
|
|
153.5
|
|
||
Production fuel, at weighted average cost
|
47.1
|
|
|
44.8
|
|
||
Gas stored underground, at weighted average cost
|
21.7
|
|
|
26.1
|
|
||
Materials and supplies, at weighted average cost
|
55.0
|
|
|
55.4
|
|
||
Regulatory assets
|
43.5
|
|
|
39.2
|
|
||
Other
|
30.0
|
|
|
43.1
|
|
||
Total current assets
|
409.4
|
|
|
371.8
|
|
||
Property, plant and equipment, net
|
7,480.7
|
|
|
6,781.5
|
|
||
Other assets:
|
|
|
|
||||
Regulatory assets
|
1,355.8
|
|
|
1,239.8
|
|
||
Deferred charges and other
|
31.6
|
|
|
18.3
|
|
||
Total other assets
|
1,387.4
|
|
|
1,258.1
|
|
||
Total assets
|
|
$9,277.5
|
|
|
|
$8,411.4
|
|
LIABILITIES AND EQUITY
|
|
|
|
||||
Current liabilities:
|
|
|
|
||||
Current maturities of long-term debt
|
|
$200.0
|
|
|
|
$—
|
|
Commercial paper
|
—
|
|
|
50.4
|
|
||
Accounts payable
|
207.0
|
|
|
304.9
|
|
||
Regulatory liabilities
|
115.9
|
|
|
90.0
|
|
||
Accrued taxes
|
63.3
|
|
|
45.8
|
|
||
Accrued interest
|
36.6
|
|
|
31.2
|
|
||
Other
|
207.7
|
|
|
84.8
|
|
||
Total current liabilities
|
830.5
|
|
|
607.1
|
|
||
Long-term debt, net (excluding current portion)
|
2,947.3
|
|
|
2,552.3
|
|
||
Other liabilities:
|
|
|
|
||||
Deferred tax liabilities
|
1,008.0
|
|
|
957.3
|
|
||
Regulatory liabilities
|
598.8
|
|
|
664.9
|
|
||
Pension and other benefit obligations
|
167.7
|
|
|
178.4
|
|
||
Other
|
253.4
|
|
|
220.7
|
|
||
Total other liabilities
|
2,027.9
|
|
|
2,021.3
|
|
||
|
|
|
|||||
Equity:
|
|
|
|
||||
Interstate Power and Light Company common equity:
|
|
|
|
||||
Common stock - $2.50 par value - 24,000,000 shares authorized; 13,370,788 shares outstanding
|
33.4
|
|
|
33.4
|
|
||
Additional paid-in capital
|
2,347.8
|
|
|
2,222.8
|
|
||
Retained earnings
|
890.6
|
|
|
774.5
|
|
||
Total Interstate Power and Light Company common equity
|
3,271.8
|
|
|
3,030.7
|
|
||
Cumulative preferred stock
|
200.0
|
|
|
200.0
|
|
||
Total equity
|
3,471.8
|
|
|
3,230.7
|
|
||
Total liabilities and equity
|
|
$9,277.5
|
|
|
|
$8,411.4
|
|
|
48
|
|
|
Year Ended December 31,
|
||||||||||
|
2019
|
|
2018
|
|
2017
|
||||||
|
(in millions)
|
||||||||||
Cash flows from (used for) operating activities:
|
|
|
|
|
|
||||||
Net income
|
|
$294.3
|
|
|
|
$274.2
|
|
|
|
$227.0
|
|
Adjustments to reconcile net income to net cash flows from (used for) operating activities:
|
|
|
|
|
|
||||||
Depreciation and amortization
|
326.7
|
|
|
283.5
|
|
|
245.0
|
|
|||
Deferred tax expense and tax credits
|
15.3
|
|
|
2.2
|
|
|
55.8
|
|
|||
Equity component of allowance for funds used during construction
|
(35.2
|
)
|
|
(28.6
|
)
|
|
(21.1
|
)
|
|||
Other
|
1.0
|
|
|
3.6
|
|
|
1.5
|
|
|||
Other changes in assets and liabilities:
|
|
|
|
|
|
||||||
Accounts receivable
|
(466.6
|
)
|
|
(494.0
|
)
|
|
(478.7
|
)
|
|||
Regulatory assets
|
(11.5
|
)
|
|
(20.2
|
)
|
|
(126.2
|
)
|
|||
Accounts payable
|
(20.5
|
)
|
|
(24.9
|
)
|
|
24.0
|
|
|||
Regulatory liabilities
|
2.0
|
|
|
0.6
|
|
|
(71.2
|
)
|
|||
Deferred income taxes
|
35.2
|
|
|
43.8
|
|
|
103.7
|
|
|||
Other
|
32.2
|
|
|
(45.2
|
)
|
|
18.4
|
|
|||
Net cash flows from (used for) operating activities
|
172.9
|
|
|
(5.0
|
)
|
|
(21.8
|
)
|
|||
Cash flows used for investing activities:
|
|
|
|
|
|
||||||
Construction and acquisition expenditures
|
(1,019.6
|
)
|
|
(990.7
|
)
|
|
(676.0
|
)
|
|||
Cash receipts on sold receivables
|
413.2
|
|
|
605.3
|
|
|
461.8
|
|
|||
Other
|
(60.6
|
)
|
|
(44.0
|
)
|
|
(27.7
|
)
|
|||
Net cash flows used for investing activities
|
(667.0
|
)
|
|
(429.4
|
)
|
|
(241.9
|
)
|
|||
Cash flows from financing activities:
|
|
|
|
|
|
||||||
Common stock dividends
|
(168.0
|
)
|
|
(168.0
|
)
|
|
(156.1
|
)
|
|||
Capital contributions from parent
|
125.0
|
|
|
425.0
|
|
|
200.0
|
|
|||
Proceeds from issuance of long-term debt
|
600.0
|
|
|
500.0
|
|
|
250.0
|
|
|||
Payments to retire long-term debt
|
—
|
|
|
(350.0
|
)
|
|
—
|
|
|||
Net change in commercial paper
|
(50.4
|
)
|
|
50.4
|
|
|
—
|
|
|||
Other
|
(15.6
|
)
|
|
(17.8
|
)
|
|
(27.2
|
)
|
|||
Net cash flows from financing activities
|
491.0
|
|
|
439.6
|
|
|
266.7
|
|
|||
Net increase (decrease) in cash, cash equivalents and restricted cash
|
(3.1
|
)
|
|
5.2
|
|
|
3.0
|
|
|||
Cash, cash equivalents and restricted cash at beginning of period
|
12.4
|
|
|
7.2
|
|
|
4.2
|
|
|||
Cash, cash equivalents and restricted cash at end of period
|
|
$9.3
|
|
|
|
$12.4
|
|
|
|
$7.2
|
|
Supplemental cash flows information:
|
|
|
|
|
|
||||||
Cash (paid) refunded during the period for:
|
|
|
|
|
|
||||||
Interest
|
|
($121.6
|
)
|
|
|
($120.3
|
)
|
|
|
($111.8
|
)
|
Income taxes, net
|
|
$6.9
|
|
|
|
($23.8
|
)
|
|
|
$8.6
|
|
Significant non-cash investing and financing activities:
|
|
|
|
|
|
||||||
Accrued capital expenditures
|
|
$111.6
|
|
|
|
$186.6
|
|
|
|
$76.4
|
|
Beneficial interest obtained in exchange for securitized accounts receivable
|
|
$187.7
|
|
|
|
$119.4
|
|
|
|
$222.1
|
|
|
49
|
|
|
Total IPL Common Equity
|
|
|
|
|
||||||||||||||
|
|
|
Additional
|
|
|
|
Cumulative
|
|
|
||||||||||
|
Common
|
|
Paid-In
|
|
Retained
|
|
Preferred
|
|
Total
|
||||||||||
|
Stock
|
|
Capital
|
|
Earnings
|
|
Stock
|
|
Equity
|
||||||||||
|
(in millions)
|
||||||||||||||||||
2017:
|
|
|
|
|
|
|
|
|
|
||||||||||
Beginning balance
|
|
$33.4
|
|
|
|
$1,597.8
|
|
|
|
$617.8
|
|
|
|
$200.0
|
|
|
|
$2,449.0
|
|
Net income available for common stock
|
|
|
|
|
216.8
|
|
|
|
|
216.8
|
|
||||||||
Common stock dividends
|
|
|
|
|
(156.1
|
)
|
|
|
|
(156.1
|
)
|
||||||||
Capital contribution from parent
|
|
|
200.0
|
|
|
|
|
|
|
200.0
|
|
||||||||
Ending balance
|
33.4
|
|
|
1,797.8
|
|
|
678.5
|
|
|
200.0
|
|
|
2,709.7
|
|
|||||
2018:
|
|
|
|
|
|
|
|
|
|
||||||||||
Net income available for common stock
|
|
|
|
|
264.0
|
|
|
|
|
264.0
|
|
||||||||
Common stock dividends
|
|
|
|
|
(168.0
|
)
|
|
|
|
(168.0
|
)
|
||||||||
Capital contribution from parent
|
|
|
425.0
|
|
|
|
|
|
|
425.0
|
|
||||||||
Ending balance
|
33.4
|
|
|
2,222.8
|
|
|
774.5
|
|
|
200.0
|
|
|
3,230.7
|
|
|||||
2019:
|
|
|
|
|
|
|
|
|
|
||||||||||
Net income available for common stock
|
|
|
|
|
284.1
|
|
|
|
|
284.1
|
|
||||||||
Common stock dividends
|
|
|
|
|
(168.0
|
)
|
|
|
|
(168.0
|
)
|
||||||||
Capital contribution from parent
|
|
|
125.0
|
|
|
|
|
|
|
125.0
|
|
||||||||
Ending balance
|
|
$33.4
|
|
|
|
$2,347.8
|
|
|
|
$890.6
|
|
|
|
$200.0
|
|
|
|
$3,471.8
|
|
|
50
|
|
|
51
|
|
|
Year Ended December 31,
|
||||||||||
|
2019
|
|
2018
|
|
2017
|
||||||
|
(in millions)
|
||||||||||
Revenues:
|
|
|
|
|
|
||||||
Electric utility
|
|
$1,282.4
|
|
|
|
$1,269.2
|
|
|
|
$1,295.8
|
|
Gas utility
|
191.0
|
|
|
180.4
|
|
|
174.9
|
|
|||
Other
|
2.3
|
|
|
3.0
|
|
|
2.1
|
|
|||
Total revenues
|
1,475.7
|
|
|
1,452.6
|
|
|
1,472.8
|
|
|||
Operating expenses:
|
|
|
|
|
|
||||||
Electric production fuel and purchased power
|
342.2
|
|
|
386.0
|
|
|
374.5
|
|
|||
Electric transmission service
|
141.2
|
|
|
142.8
|
|
|
170.5
|
|
|||
Cost of gas sold
|
101.8
|
|
|
102.7
|
|
|
95.8
|
|
|||
Other operation and maintenance
|
260.9
|
|
|
241.6
|
|
|
238.5
|
|
|||
Depreciation and amortization
|
235.6
|
|
|
219.4
|
|
|
212.9
|
|
|||
Taxes other than income taxes
|
46.8
|
|
|
47.2
|
|
|
46.9
|
|
|||
Total operating expenses
|
1,128.5
|
|
|
1,139.7
|
|
|
1,139.1
|
|
|||
Operating income
|
347.2
|
|
|
312.9
|
|
|
333.7
|
|
|||
Other (income) and deductions:
|
|
|
|
|
|
||||||
Interest expense
|
102.2
|
|
|
97.8
|
|
|
93.8
|
|
|||
Allowance for funds used during construction
|
(43.3
|
)
|
|
(33.4
|
)
|
|
(18.3
|
)
|
|||
Other
|
6.0
|
|
|
4.2
|
|
|
9.7
|
|
|||
Total other (income) and deductions
|
64.9
|
|
|
68.6
|
|
|
85.2
|
|
|||
Income before income taxes
|
282.3
|
|
|
244.3
|
|
|
248.5
|
|
|||
Income taxes
|
49.3
|
|
|
36.2
|
|
|
61.9
|
|
|||
Net income
|
|
$233.0
|
|
|
|
$208.1
|
|
|
|
$186.6
|
|
|
52
|
|
|
December 31,
|
||||||
|
2019
|
|
2018
|
||||
|
(in millions, except per
share and share amounts)
|
||||||
ASSETS
|
|
|
|
||||
Current assets:
|
|
|
|
||||
Cash and cash equivalents
|
|
$4.4
|
|
|
|
$8.7
|
|
Accounts receivable, less allowance for doubtful accounts
|
190.9
|
|
|
190.1
|
|
||
Production fuel, at weighted average cost
|
30.6
|
|
|
16.6
|
|
||
Gas stored underground, at weighted average cost
|
27.4
|
|
|
22.9
|
|
||
Materials and supplies, at weighted average cost
|
43.1
|
|
|
42.9
|
|
||
Regulatory assets
|
42.9
|
|
|
40.6
|
|
||
Prepaid gross receipts tax
|
41.7
|
|
|
42.2
|
|
||
Other
|
61.7
|
|
|
20.6
|
|
||
Total current assets
|
442.7
|
|
|
384.6
|
|
||
Property, plant and equipment, net
|
5,638.3
|
|
|
5,287.3
|
|
||
Other assets:
|
|
|
|
||||
Regulatory assets
|
402.5
|
|
|
417.7
|
|
||
Deferred charges and other
|
23.0
|
|
|
62.9
|
|
||
Total other assets
|
425.5
|
|
|
480.6
|
|
||
Total assets
|
|
$6,506.5
|
|
|
|
$6,152.5
|
|
LIABILITIES AND EQUITY
|
|
|
|
||||
Current liabilities:
|
|
|
|
||||
Current maturities of long-term debt
|
|
$150.0
|
|
|
|
$250.0
|
|
Commercial paper
|
168.2
|
|
|
105.5
|
|
||
Accounts payable
|
159.9
|
|
|
180.9
|
|
||
Accounts payable to associated companies
|
41.8
|
|
|
31.8
|
|
||
Regulatory liabilities
|
96.1
|
|
|
52.7
|
|
||
Other
|
74.3
|
|
|
73.7
|
|
||
Total current liabilities
|
690.3
|
|
|
694.6
|
|
||
Long-term debt, net (excluding current portion)
|
1,782.7
|
|
|
1,584.9
|
|
||
Other liabilities:
|
|
|
|
||||
Deferred tax liabilities
|
626.2
|
|
|
582.0
|
|
||
Regulatory liabilities
|
612.8
|
|
|
685.6
|
|
||
Finance lease obligations - Sheboygan Falls Energy Facility
|
51.4
|
|
|
60.0
|
|
||
Pension and other benefit obligations
|
210.8
|
|
|
217.7
|
|
||
Other
|
168.7
|
|
|
178.2
|
|
||
Total other liabilities
|
1,669.9
|
|
|
1,723.5
|
|
||
|
|
|
|||||
Equity:
|
|
|
|
||||
Wisconsin Power and Light Company common equity:
|
|
|
|
||||
Common stock - $5 par value - 18,000,000 shares authorized; 13,236,601 shares outstanding
|
66.2
|
|
|
66.2
|
|
||
Additional paid-in capital
|
1,434.0
|
|
|
1,309.0
|
|
||
Retained earnings
|
863.4
|
|
|
774.3
|
|
||
Total Wisconsin Power and Light Company common equity
|
2,363.6
|
|
|
2,149.5
|
|
||
Total liabilities and equity
|
|
$6,506.5
|
|
|
|
$6,152.5
|
|
|
53
|
|
|
Year Ended December 31,
|
||||||||||
|
2019
|
|
2018
|
|
2017
|
||||||
|
(in millions)
|
||||||||||
Cash flows from operating activities:
|
|
|
|
|
|
||||||
Net income
|
|
$233.0
|
|
|
|
$208.1
|
|
|
|
$186.6
|
|
Adjustments to reconcile net income to net cash flows from operating activities:
|
|
|
|
|
|
||||||
Depreciation and amortization
|
235.6
|
|
|
219.4
|
|
|
212.9
|
|
|||
Deferred tax expense and tax credits
|
23.6
|
|
|
49.8
|
|
|
53.9
|
|
|||
Other
|
(11.5
|
)
|
|
(17.5
|
)
|
|
4.4
|
|
|||
Other changes in assets and liabilities:
|
|
|
|
|
|
||||||
Regulatory liabilities
|
(42.3
|
)
|
|
0.7
|
|
|
(12.6
|
)
|
|||
Other
|
(15.2
|
)
|
|
(3.5
|
)
|
|
20.5
|
|
|||
Net cash flows from operating activities
|
423.2
|
|
|
457.0
|
|
|
465.7
|
|
|||
Cash flows used for investing activities:
|
|
|
|
|
|
||||||
Construction and acquisition expenditures
|
(518.8
|
)
|
|
(577.6
|
)
|
|
(637.4
|
)
|
|||
Other
|
(38.4
|
)
|
|
(29.9
|
)
|
|
(29.9
|
)
|
|||
Net cash flows used for investing activities
|
(557.2
|
)
|
|
(607.5
|
)
|
|
(667.3
|
)
|
|||
Cash flows from financing activities:
|
|
|
|
|
|
||||||
Common stock dividends
|
(143.9
|
)
|
|
(140.1
|
)
|
|
(125.9
|
)
|
|||
Capital contribution from parent
|
125.0
|
|
|
200.0
|
|
|
90.0
|
|
|||
Proceeds from issuance of long-term debt
|
350.0
|
|
|
—
|
|
|
300.0
|
|
|||
Payments to retire long-term debt
|
(250.0
|
)
|
|
—
|
|
|
—
|
|
|||
Net change in commercial paper
|
62.7
|
|
|
80.5
|
|
|
(27.3
|
)
|
|||
Other
|
(14.6
|
)
|
|
(4.9
|
)
|
|
(17.9
|
)
|
|||
Net cash flows from financing activities
|
129.2
|
|
|
135.5
|
|
|
218.9
|
|
|||
Net increase (decrease) in cash, cash equivalents and restricted cash
|
(4.8
|
)
|
|
(15.0
|
)
|
|
17.3
|
|
|||
Cash, cash equivalents and restricted cash at beginning of period
|
9.2
|
|
|
24.2
|
|
|
6.9
|
|
|||
Cash, cash equivalents and restricted cash at end of period
|
|
$4.4
|
|
|
|
$9.2
|
|
|
|
$24.2
|
|
Supplemental cash flows information:
|
|
|
|
|
|
||||||
Cash (paid) refunded during the period for:
|
|
|
|
|
|
||||||
Interest
|
|
($102.5
|
)
|
|
|
($98.1
|
)
|
|
|
($91.7
|
)
|
Income taxes, net
|
|
($28.9
|
)
|
|
|
$14.0
|
|
|
|
($8.4
|
)
|
Significant non-cash investing and financing activities:
|
|
|
|
|
|
||||||
Accrued capital expenditures
|
|
$81.5
|
|
|
|
$102.5
|
|
|
|
$114.5
|
|
|
54
|
|
|
|
|
Additional
|
|
|
|
Total
|
||||||||
|
Common
|
|
Paid-In
|
|
Retained
|
|
Common
|
||||||||
|
Stock
|
|
Capital
|
|
Earnings
|
|
Equity
|
||||||||
|
(in millions)
|
||||||||||||||
2017:
|
|
|
|
|
|
|
|
||||||||
Beginning balance
|
|
$66.2
|
|
|
|
$1,019.0
|
|
|
|
$645.6
|
|
|
|
$1,730.8
|
|
Net income
|
|
|
|
|
186.6
|
|
|
186.6
|
|
||||||
Common stock dividends
|
|
|
|
|
(125.9
|
)
|
|
(125.9
|
)
|
||||||
Capital contribution from parent
|
|
|
90.0
|
|
|
|
|
90.0
|
|
||||||
Ending balance
|
66.2
|
|
|
1,109.0
|
|
|
706.3
|
|
|
1,881.5
|
|
||||
2018:
|
|
|
|
|
|
|
|
||||||||
Net income
|
|
|
|
|
208.1
|
|
|
208.1
|
|
||||||
Common stock dividends
|
|
|
|
|
(140.1
|
)
|
|
(140.1
|
)
|
||||||
Capital contribution from parent
|
|
|
200.0
|
|
|
|
|
200.0
|
|
||||||
Ending balance
|
66.2
|
|
|
1,309.0
|
|
|
774.3
|
|
|
2,149.5
|
|
||||
2019:
|
|
|
|
|
|
|
|
||||||||
Net income
|
|
|
|
|
233.0
|
|
|
233.0
|
|
||||||
Common stock dividends
|
|
|
|
|
(143.9
|
)
|
|
(143.9
|
)
|
||||||
Capital contribution from parent
|
|
|
125.0
|
|
|
|
|
125.0
|
|
||||||
Ending balance
|
|
$66.2
|
|
|
|
$1,434.0
|
|
|
|
$863.4
|
|
|
|
$2,363.6
|
|
|
55
|
|
|
56
|
|
|
57
|
|
|
IPL
|
|
WPL
|
||||||||
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
Electric - generation
|
3.8%
|
|
3.6%
|
|
3.5%
|
|
3.6%
|
|
3.6%
|
|
3.5%
|
Electric - distribution
|
2.9%
|
|
2.8%
|
|
2.4%
|
|
2.6%
|
|
2.6%
|
|
2.6%
|
Electric - other
|
5.3%
|
|
4.7%
|
|
4.5%
|
|
5.8%
|
|
5.7%
|
|
6.9%
|
Gas
|
3.3%
|
|
3.2%
|
|
3.4%
|
|
2.5%
|
|
2.5%
|
|
2.5%
|
Other
|
5.9%
|
|
5.2%
|
|
4.0%
|
|
5.6%
|
|
5.8%
|
|
6.0%
|
|
58
|
|
|
59
|
|
|
60
|
|
|
61
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||||||
Tax-related
|
|
$817.6
|
|
|
|
$820.6
|
|
|
|
$776.8
|
|
|
|
$783.1
|
|
|
|
$40.8
|
|
|
|
$37.5
|
|
Pension and OPEB costs
|
524.0
|
|
|
542.3
|
|
|
262.5
|
|
|
274.0
|
|
|
261.5
|
|
|
268.3
|
|
||||||
Assets retired early
|
134.0
|
|
|
111.6
|
|
|
87.9
|
|
|
55.4
|
|
|
46.1
|
|
|
56.2
|
|
||||||
AROs
|
111.8
|
|
|
110.8
|
|
|
76.2
|
|
|
76.3
|
|
|
35.6
|
|
|
34.5
|
|
||||||
IPL’s DAEC PPA amendment
|
108.2
|
|
|
—
|
|
|
108.2
|
|
|
—
|
|
|
—
|
|
|
—
|
|
||||||
Derivatives
|
39.5
|
|
|
28.0
|
|
|
18.3
|
|
|
15.1
|
|
|
21.2
|
|
|
12.9
|
|
||||||
Emission allowances
|
21.1
|
|
|
23.6
|
|
|
21.1
|
|
|
23.6
|
|
|
—
|
|
|
—
|
|
||||||
Other
|
88.5
|
|
|
100.4
|
|
|
48.3
|
|
|
51.5
|
|
|
40.2
|
|
|
48.9
|
|
||||||
|
|
$1,844.7
|
|
|
|
$1,737.3
|
|
|
|
$1,399.3
|
|
|
|
$1,279.0
|
|
|
|
$445.4
|
|
|
|
$458.3
|
|
|
62
|
|
Entity
|
|
Asset
|
|
Retirement Date
|
|
Regulatory Asset Balance as of Dec. 31, 2019
|
|
Recovery
|
|
Regulatory Approval
|
||
IPL
|
|
Sutherland Units 1 and 3
|
|
2017
|
|
|
$28.5
|
|
|
Return of and return on remaining net book value over 10 years (return on effective with new rates expected to be implemented by the end of the first quarter of 2020)
|
|
IUB and FERC
|
IPL
|
|
M.L. Kapp Unit 2
|
|
2018
|
|
23.6
|
|
|
Return of and return on remaining net book value over 10 years
|
|
IUB and FERC
|
|
IPL
|
|
Analog electric meters
|
|
2019
|
|
35.8
|
|
|
Return of remaining net book value over 10 years (effective with new rates expected to be implemented by the end of the first quarter of 2020)
|
|
IUB
|
|
WPL
|
|
Nelson Dewey Units 1 and 2 and Edgewater Unit 3
|
|
2015
|
|
20.2
|
|
|
Return of and return on remaining net book value over 10 years
|
|
PSCW and FERC
|
|
WPL
|
|
Edgewater Unit 4
|
|
2018
|
|
25.9
|
|
|
Return of and return on remaining net book value over 10 years
|
|
PSCW and FERC
|
|
63
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||||||
Tax-related
|
|
$835.6
|
|
|
|
$890.6
|
|
|
|
$350.9
|
|
|
|
$390.1
|
|
|
|
$484.7
|
|
|
|
$500.5
|
|
Cost of removal obligations
|
387.7
|
|
|
401.2
|
|
|
257.0
|
|
|
273.3
|
|
|
130.7
|
|
|
127.9
|
|
||||||
Electric transmission cost recovery
|
88.6
|
|
|
104.0
|
|
|
51.3
|
|
|
47.7
|
|
|
37.3
|
|
|
56.3
|
|
||||||
Commodity cost recovery
|
24.2
|
|
|
16.8
|
|
|
8.8
|
|
|
11.9
|
|
|
15.4
|
|
|
4.9
|
|
||||||
WPL’s earnings sharing mechanism
|
21.9
|
|
|
25.4
|
|
|
—
|
|
|
—
|
|
|
21.9
|
|
|
25.4
|
|
||||||
Derivatives
|
19.9
|
|
|
18.5
|
|
|
17.4
|
|
|
10.2
|
|
|
2.5
|
|
|
8.3
|
|
||||||
Other
|
45.7
|
|
|
36.7
|
|
|
29.3
|
|
|
21.7
|
|
|
16.4
|
|
|
15.0
|
|
||||||
|
|
$1,423.6
|
|
|
|
$1,493.2
|
|
|
|
$714.7
|
|
|
|
$754.9
|
|
|
|
$708.9
|
|
|
|
$738.3
|
|
|
64
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||||||
Utility:
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Electric plant:
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Generation in service
|
|
$7,625.3
|
|
|
|
$6,800.6
|
|
|
|
$4,432.4
|
|
|
|
$3,610.4
|
|
|
|
$3,192.9
|
|
|
|
$3,190.2
|
|
Distribution in service
|
5,783.3
|
|
|
5,452.2
|
|
|
3,190.0
|
|
|
3,023.7
|
|
|
2,593.3
|
|
|
2,428.5
|
|
||||||
Other in service
|
456.0
|
|
|
410.8
|
|
|
298.6
|
|
|
260.4
|
|
|
157.4
|
|
|
150.4
|
|
||||||
Total electric plant
|
13,864.6
|
|
|
12,663.6
|
|
|
7,921.0
|
|
|
6,894.5
|
|
|
5,943.6
|
|
|
5,769.1
|
|
||||||
Gas plant in service
|
1,462.7
|
|
|
1,387.6
|
|
|
801.5
|
|
|
763.1
|
|
|
661.2
|
|
|
624.5
|
|
||||||
Other plant in service
|
519.7
|
|
|
513.2
|
|
|
344.7
|
|
|
322.4
|
|
|
175.0
|
|
|
190.8
|
|
||||||
Accumulated depreciation
|
(4,601.4
|
)
|
|
(4,314.6
|
)
|
|
(2,498.3
|
)
|
|
(2,294.7
|
)
|
|
(2,103.1
|
)
|
|
(2,019.9
|
)
|
||||||
Net plant
|
11,245.6
|
|
|
10,249.8
|
|
|
6,568.9
|
|
|
5,685.3
|
|
|
4,676.7
|
|
|
4,564.5
|
|
||||||
Leased Sheboygan Falls Energy Facility, net (a)
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
32.3
|
|
|
38.1
|
|
||||||
Construction work in progress
|
1,835.0
|
|
|
1,774.8
|
|
|
906.8
|
|
|
1,091.2
|
|
|
928.2
|
|
|
683.6
|
|
||||||
Other, net
|
6.1
|
|
|
6.1
|
|
|
5.0
|
|
|
5.0
|
|
|
1.1
|
|
|
1.1
|
|
||||||
Total utility
|
13,086.7
|
|
|
12,030.7
|
|
|
7,480.7
|
|
|
6,781.5
|
|
|
5,638.3
|
|
|
5,287.3
|
|
||||||
Non-utility and other:
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Non-utility Generation, net (b)
|
82.9
|
|
|
86.9
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
||||||
Corporate Services and other, net (c)
|
357.5
|
|
|
344.8
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
||||||
Total non-utility and other
|
440.4
|
|
|
431.7
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
||||||
Total property, plant and equipment
|
|
$13,527.1
|
|
|
|
$12,462.4
|
|
|
|
$7,480.7
|
|
|
|
$6,781.5
|
|
|
|
$5,638.3
|
|
|
|
$5,287.3
|
|
(a)
|
Less accumulated amortization of $88.7 million and $82.8 million for WPL as of December 31, 2019 and 2018, respectively. The Sheboygan Falls Energy Facility is eliminated from WPL upon consolidation and is included in the “Non-utility Generation, net” line within Alliant Energy’s consolidated property, plant and equipment.
|
(b)
|
Less accumulated depreciation of $58.5 million and $54.5 million for Alliant Energy as of December 31, 2019 and 2018, respectively.
|
(c)
|
Less accumulated depreciation of $172.4 million and $167.5 million for Alliant Energy as of December 31, 2019 and 2018, respectively.
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||||||||||||||
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
||||||||||||||||||
Equity
|
|
$65.5
|
|
|
|
$51.4
|
|
|
|
$33.6
|
|
|
|
$35.2
|
|
|
|
$28.6
|
|
|
|
$21.1
|
|
|
|
$30.3
|
|
|
|
$22.8
|
|
|
|
$12.5
|
|
Debt
|
27.2
|
|
|
24.2
|
|
|
16.1
|
|
|
14.2
|
|
|
13.6
|
|
|
10.3
|
|
|
13.0
|
|
|
10.6
|
|
|
5.8
|
|
|||||||||
|
|
$92.7
|
|
|
|
$75.6
|
|
|
|
$49.7
|
|
|
|
$49.4
|
|
|
|
$42.2
|
|
|
|
$31.4
|
|
|
|
$43.3
|
|
|
|
$33.4
|
|
|
|
$18.3
|
|
|
65
|
|
|
Ownership
|
|
Electric
|
|
Accumulated Provision
|
|
Construction
|
|||||||
|
Interest %
|
|
Plant
|
|
for Depreciation
|
|
Work in Progress
|
|||||||
IPL
|
|
|
|
|
|
|
|
|||||||
Ottumwa Unit 1
|
48.0
|
%
|
|
|
$571.5
|
|
|
|
$180.8
|
|
|
|
$18.8
|
|
George Neal Unit 4
|
25.7
|
%
|
|
191.8
|
|
|
93.5
|
|
|
0.8
|
|
|||
George Neal Unit 3
|
28.0
|
%
|
|
163.7
|
|
|
63.2
|
|
|
0.9
|
|
|||
Louisa Unit 1
|
4.0
|
%
|
|
39.9
|
|
|
24.9
|
|
|
0.2
|
|
|||
|
|
|
966.9
|
|
|
362.4
|
|
|
20.7
|
|
||||
WPL
|
|
|
|
|
|
|
|
|||||||
Columbia Units 1-2
|
53.3
|
%
|
|
777.0
|
|
|
264.7
|
|
|
5.5
|
|
|||
FWEC
|
42.6
|
%
|
|
120.2
|
|
|
43.6
|
|
|
—
|
|
|||
West Riverside
|
91.8
|
%
|
|
—
|
|
|
—
|
|
|
647.5
|
|
|||
|
|
|
897.2
|
|
|
308.3
|
|
|
653.0
|
|
||||
Alliant Energy
|
|
|
|
$1,864.1
|
|
|
|
$670.7
|
|
|
|
$673.7
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||||||
Customer
|
|
$91.6
|
|
|
|
$91.0
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$83.5
|
|
|
|
$84.8
|
|
Unbilled utility revenues
|
82.1
|
|
|
74.2
|
|
|
—
|
|
|
—
|
|
|
82.1
|
|
|
74.2
|
|
||||||
Deferred proceeds
|
187.7
|
|
|
119.4
|
|
|
187.7
|
|
|
119.4
|
|
|
—
|
|
|
—
|
|
||||||
Other
|
48.0
|
|
|
76.3
|
|
|
16.3
|
|
|
37.2
|
|
|
31.4
|
|
|
38.5
|
|
||||||
Allowance for doubtful accounts
|
(7.3
|
)
|
|
(10.5
|
)
|
|
(1.2
|
)
|
|
(3.1
|
)
|
|
(6.1
|
)
|
|
(7.4
|
)
|
||||||
|
|
$402.1
|
|
|
|
$350.4
|
|
|
|
$202.8
|
|
|
|
$153.5
|
|
|
|
$190.9
|
|
|
|
$190.1
|
|
|
66
|
|
|
Maximum
|
|
Average
|
||||||||
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
Outstanding aggregate cash proceeds
|
$108.0
|
|
$116.0
|
|
$112.0
|
|
$35.9
|
|
$53.4
|
|
$62.2
|
|
2019
|
|
2018
|
Customer accounts receivable
|
$124.7
|
|
$140.1
|
Unbilled utility revenues
|
95.5
|
|
97.1
|
Other receivables
|
0.9
|
|
0.1
|
Receivables sold to third party
|
221.1
|
|
237.3
|
Less: cash proceeds
|
27.0
|
|
108.0
|
Deferred proceeds
|
194.1
|
|
129.3
|
Less: allowance for doubtful accounts
|
6.4
|
|
9.9
|
Fair value of deferred proceeds
|
$187.7
|
|
$119.4
|
Outstanding receivables past due
|
$26.0
|
|
$35.5
|
|
2019
|
|
2018
|
|
2017
|
Collections
|
$2,192.8
|
|
$2,076.7
|
|
$1,647.1
|
Write-offs, net of recoveries
|
19.2
|
|
21.3
|
|
17.7
|
|
Ownership Interest at
|
|
Carrying Value at December 31,
|
|
Equity (Income) / Loss
|
||||||||||||||||
|
December 31, 2019
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2017
|
||||||||||
ATC Holdings
|
16%, 20%
|
|
|
$320.1
|
|
|
|
$293.6
|
|
|
|
($45.3
|
)
|
|
|
($38.1
|
)
|
|
|
($42.4
|
)
|
Non-utility wind farm in Oklahoma
|
50%
|
|
105.3
|
|
|
105.1
|
|
|
(5.2
|
)
|
|
(15.6
|
)
|
|
(1.8
|
)
|
|||||
Other
|
Various
|
|
32.9
|
|
|
22.6
|
|
|
(2.5
|
)
|
|
(0.9
|
)
|
|
(0.6
|
)
|
|||||
|
|
|
|
$458.3
|
|
|
|
$421.3
|
|
|
|
($53.0
|
)
|
|
|
($54.6
|
)
|
|
|
($44.8
|
)
|
|
67
|
|
|
2019
|
|
2018
|
|
2017
|
|||
Shares outstanding, January 1
|
236,063,279
|
|
|
231,348,646
|
|
|
227,673,654
|
|
Equity forward agreements
|
8,358,973
|
|
|
—
|
|
|
—
|
|
At-the-market offering programs
|
—
|
|
|
4,171,013
|
|
|
3,074,931
|
|
Shareowner Direct Plan
|
501,808
|
|
|
576,965
|
|
|
640,723
|
|
Equity-based compensation plans
|
101,478
|
|
|
5,078
|
|
|
5,185
|
|
Other
|
(2,738
|
)
|
|
(38,423
|
)
|
|
(45,847
|
)
|
Shares outstanding, December 31
|
245,022,800
|
|
|
236,063,279
|
|
|
231,348,646
|
|
|
68
|
|
Series
|
|
Liquidation Preference/Stated Value
|
|
Shares Authorized
|
|
Shares Outstanding
|
|
2019
|
|
2018
|
||||
|
|
|
|
|
|
|
|
(in millions)
|
||||||
5.1%
|
|
$25
|
|
8,000,000
|
|
8,000,000
|
|
|
$200.0
|
|
|
|
$200.0
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||
December 31
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
Commercial paper outstanding
|
$337.4
|
|
$441.2
|
|
$—
|
|
$50.4
|
|
$168.2
|
|
$105.5
|
Commercial paper weighted average interest rates
|
1.9%
|
|
2.8%
|
|
N/A
|
|
2.8%
|
|
1.8%
|
|
2.5%
|
Available credit facility capacity
|
$662.6
|
|
$558.8
|
|
$250.0
|
|
$199.6
|
|
$131.8
|
|
$244.5
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||
For the year ended
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
Maximum amount outstanding (based on daily outstanding balances)
|
$600.6
|
|
$446.5
|
|
$50.4
|
|
$50.4
|
|
$195.1
|
|
$126.0
|
Average amount outstanding (based on daily outstanding balances)
|
$453.5
|
|
$221.4
|
|
$0.1
|
|
$1.5
|
|
$92.6
|
|
$36.6
|
Weighted average interest rates
|
2.5%
|
|
2.2%
|
|
2.8%
|
|
2.3%
|
|
2.4%
|
|
2.1%
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
Requirement, not to exceed
|
65%
|
|
65%
|
|
65%
|
Actual
|
55%
|
|
48%
|
|
48%
|
|
69
|
|
|
2019
|
|
2018
|
||||||||||||||||||||
|
Alliant Energy
|
|
IPL
|
|
WPL
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||
Senior Debentures (a):
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
3.65%, due 2020
|
|
$200.0
|
|
|
|
$200.0
|
|
|
|
$—
|
|
|
|
$200.0
|
|
|
|
$200.0
|
|
|
|
$—
|
|
3.25%, due 2024
|
500.0
|
|
|
500.0
|
|
|
—
|
|
|
500.0
|
|
|
500.0
|
|
|
—
|
|
||||||
3.4%, due 2025
|
250.0
|
|
|
250.0
|
|
|
—
|
|
|
250.0
|
|
|
250.0
|
|
|
—
|
|
||||||
5.5%, due 2025
|
50.0
|
|
|
50.0
|
|
|
—
|
|
|
50.0
|
|
|
50.0
|
|
|
—
|
|
||||||
4.1%, due 2028
|
500.0
|
|
|
500.0
|
|
|
—
|
|
|
500.0
|
|
|
500.0
|
|
|
—
|
|
||||||
3.6%, due 2029 (b)
|
300.0
|
|
|
300.0
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
||||||
6.45%, due 2033
|
100.0
|
|
|
100.0
|
|
|
—
|
|
|
100.0
|
|
|
100.0
|
|
|
—
|
|
||||||
6.3%, due 2034
|
125.0
|
|
|
125.0
|
|
|
—
|
|
|
125.0
|
|
|
125.0
|
|
|
—
|
|
||||||
6.25%, due 2039
|
300.0
|
|
|
300.0
|
|
|
—
|
|
|
300.0
|
|
|
300.0
|
|
|
—
|
|
||||||
4.7%, due 2043
|
250.0
|
|
|
250.0
|
|
|
—
|
|
|
250.0
|
|
|
250.0
|
|
|
—
|
|
||||||
3.7%, due 2046
|
300.0
|
|
|
300.0
|
|
|
—
|
|
|
300.0
|
|
|
300.0
|
|
|
—
|
|
||||||
3.5%, due 2049 (b)
|
300.0
|
|
|
300.0
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
||||||
|
3,175.0
|
|
|
3,175.0
|
|
|
—
|
|
|
2,575.0
|
|
|
2,575.0
|
|
|
—
|
|
||||||
Debentures (a):
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
4.6%, due 2020
|
150.0
|
|
|
—
|
|
|
150.0
|
|
|
150.0
|
|
|
—
|
|
|
150.0
|
|
||||||
2.25%, due 2022
|
250.0
|
|
|
—
|
|
|
250.0
|
|
|
250.0
|
|
|
—
|
|
|
250.0
|
|
||||||
3.05%, due 2027
|
300.0
|
|
|
—
|
|
|
300.0
|
|
|
300.0
|
|
|
—
|
|
|
300.0
|
|
||||||
3%, due 2029 (c)
|
350.0
|
|
|
—
|
|
|
350.0
|
|
|
—
|
|
|
—
|
|
|
—
|
|
||||||
6.25%, due 2034
|
100.0
|
|
|
—
|
|
|
100.0
|
|
|
100.0
|
|
|
—
|
|
|
100.0
|
|
||||||
6.375%, due 2037
|
300.0
|
|
|
—
|
|
|
300.0
|
|
|
300.0
|
|
|
—
|
|
|
300.0
|
|
||||||
7.6%, due 2038
|
250.0
|
|
|
—
|
|
|
250.0
|
|
|
250.0
|
|
|
—
|
|
|
250.0
|
|
||||||
4.1%, due 2044
|
250.0
|
|
|
—
|
|
|
250.0
|
|
|
250.0
|
|
|
—
|
|
|
250.0
|
|
||||||
5% (Retired in 2019)
|
—
|
|
|
—
|
|
|
—
|
|
|
250.0
|
|
|
—
|
|
|
250.0
|
|
||||||
|
1,950.0
|
|
|
—
|
|
|
1,950.0
|
|
|
1,850.0
|
|
|
—
|
|
|
1,850.0
|
|
||||||
Other:
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
AEF term loan credit agreement through April 2020, 2% at December 31, 2019 (with Alliant Energy as guarantor)
|
300.0
|
|
|
—
|
|
|
—
|
|
|
300.0
|
|
|
—
|
|
|
—
|
|
||||||
Corporate Services 3.45% senior notes, due 2022 (a)
|
75.0
|
|
|
—
|
|
|
—
|
|
|
75.0
|
|
|
—
|
|
|
—
|
|
||||||
AEF 3.75% senior notes, due 2023 (with Alliant Energy as guarantor) (a)
|
400.0
|
|
|
—
|
|
|
—
|
|
|
400.0
|
|
|
—
|
|
|
—
|
|
||||||
AEF 4.25% senior notes, due 2028 (with Alliant Energy as guarantor) (a)
|
300.0
|
|
|
—
|
|
|
—
|
|
|
300.0
|
|
|
—
|
|
|
—
|
|
||||||
Sheboygan Power, LLC 5.06% senior secured notes, due 2020 to 2024 (secured by the Sheboygan Falls Energy Facility and related assets) (a)
|
38.2
|
|
|
—
|
|
|
—
|
|
|
44.3
|
|
|
—
|
|
|
—
|
|
||||||
Other, 1% at December 31, 2019, due 2020 to 2025
|
2.1
|
|
|
—
|
|
|
—
|
|
|
2.4
|
|
|
—
|
|
|
—
|
|
||||||
|
1,115.3
|
|
|
—
|
|
|
—
|
|
|
1,121.7
|
|
|
—
|
|
|
—
|
|
||||||
Subtotal
|
6,240.3
|
|
|
3,175.0
|
|
|
1,950.0
|
|
|
5,546.7
|
|
|
2,575.0
|
|
|
1,850.0
|
|
||||||
Current maturities
|
(657.2
|
)
|
|
(200.0
|
)
|
|
(150.0
|
)
|
|
(256.5
|
)
|
|
—
|
|
|
(250.0
|
)
|
||||||
Unamortized debt issuance costs
|
(36.9
|
)
|
|
(21.0
|
)
|
|
(11.3
|
)
|
|
(32.1
|
)
|
|
(17.2
|
)
|
|
(9.6
|
)
|
||||||
Unamortized debt (discount) and premium, net
|
(13.2
|
)
|
|
(6.7
|
)
|
|
(6.0
|
)
|
|
(11.8
|
)
|
|
(5.5
|
)
|
|
(5.5
|
)
|
||||||
Long-term debt, net (d)
|
|
$5,533.0
|
|
|
|
$2,947.3
|
|
|
|
$1,782.7
|
|
|
|
$5,246.3
|
|
|
|
$2,552.3
|
|
|
|
$1,584.9
|
|
(a)
|
Contains optional redemption provisions which, if elected by the issuer at its sole discretion, could require material redemption premium payments by the issuer. The redemption premium payments under these optional redemption provisions are variable and dependent on applicable U.S. Treasury rates at the time of redemption.
|
(b)
|
In April 2019, IPL issued $300 million of 3.6% senior debentures due 2029. In September 2019, IPL issued $300 million of 3.5% senior debentures due 2049. The senior debentures were issued as green bonds, and all of the net proceeds were allocated for the construction and development of IPL’s wind projects.
|
(c)
|
In June 2019, WPL issued $350 million of 3% debentures due 2029. The net proceeds from the issuance were used by WPL to reduce its outstanding commercial paper and retire its $250 million 5% debentures that matured in July 2019.
|
(d)
|
There were no significant sinking fund requirements related to the outstanding long-term debt.
|
|
70
|
|
|
2020
|
|
2021
|
|
2022
|
|
2023
|
|
2024
|
||||||||||
IPL
|
|
$200
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$500
|
|
WPL
|
150
|
|
|
—
|
|
|
250
|
|
|
—
|
|
|
—
|
|
|||||
Corporate Services
|
—
|
|
|
—
|
|
|
75
|
|
|
—
|
|
|
—
|
|
|||||
AEF
|
307
|
|
|
8
|
|
|
8
|
|
|
408
|
|
|
9
|
|
|||||
Alliant Energy
|
|
$657
|
|
|
|
$8
|
|
|
|
$333
|
|
|
|
$408
|
|
|
|
$509
|
|
|
December 31, 2019
|
||||||||||
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||
Property, plant and equipment, net
|
|
$16
|
|
|
|
$10
|
|
|
|
$6
|
|
Other current liabilities
|
|
$2
|
|
|
|
$1
|
|
|
|
$1
|
|
Other liabilities
|
14
|
|
|
9
|
|
|
5
|
|
|||
Total operating lease liabilities
|
|
$16
|
|
|
|
$10
|
|
|
|
$6
|
|
Weighted average remaining lease term
|
11 years
|
|
|
12 years
|
|
|
10 years
|
|
|||
Weighted average discount rate
|
4
|
%
|
|
4
|
%
|
|
4
|
%
|
|||
|
|
|
|
|
|
||||||
|
2019
|
||||||||||
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||
Operating lease cost
|
|
$2
|
|
|
|
$1
|
|
|
|
$1
|
|
|
December 31, 2019
|
||
Property, plant and equipment, net
|
|
$32
|
|
Other current liabilities
|
|
$9
|
|
Finance lease obligations - Sheboygan Falls Energy Facility
|
51
|
|
|
Total finance lease liabilities
|
|
$60
|
|
Remaining lease term
|
5 years
|
|
|
Discount rate
|
11
|
%
|
|
|
|
||
|
2019
|
||
Depreciation expense
|
|
$6
|
|
Interest expense
|
7
|
|
|
Total finance lease expense
|
|
$13
|
|
|
71
|
|
|
2020
|
|
2021
|
|
2022
|
|
2023
|
|
2024
|
|
Thereafter
|
|
Total
|
|
Less: amount representing interest
|
|
Present value of minimum lease payments
|
||||||||||||||||||
Operating Leases:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||
Alliant Energy
|
|
$2
|
|
|
|
$2
|
|
|
|
$2
|
|
|
|
$2
|
|
|
|
$2
|
|
|
|
$10
|
|
|
|
$20
|
|
|
|
$4
|
|
|
|
$16
|
|
IPL
|
1
|
|
|
1
|
|
|
1
|
|
|
1
|
|
|
1
|
|
|
7
|
|
|
12
|
|
|
2
|
|
|
10
|
|
|||||||||
WPL
|
1
|
|
|
1
|
|
|
1
|
|
|
1
|
|
|
1
|
|
|
3
|
|
|
8
|
|
|
2
|
|
|
6
|
|
|||||||||
WPL’s Finance Lease:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||
Sheboygan Falls Energy Facility
|
15
|
|
|
15
|
|
|
15
|
|
|
15
|
|
|
15
|
|
|
5
|
|
|
80
|
|
|
20
|
|
|
60
|
|
|
2019
|
|
2020
|
|
2021
|
|
2022
|
|
2023
|
|
Thereafter
|
|
Total
|
|
Less: amount representing interest
|
|
Present value of minimum capital lease payments
|
||||||||||||||||||
Operating Leases:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||
Alliant Energy
|
|
$5
|
|
|
|
$5
|
|
|
|
$3
|
|
|
|
$3
|
|
|
|
$2
|
|
|
|
$12
|
|
|
|
$30
|
|
|
|
|
|
||||
IPL
|
3
|
|
|
2
|
|
|
2
|
|
|
2
|
|
|
2
|
|
|
12
|
|
|
23
|
|
|
|
|
|
|||||||||||
WPL
|
2
|
|
|
3
|
|
|
1
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
6
|
|
|
|
|
|
|||||||||||
WPL’s Capital Lease:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||
Sheboygan Falls Energy Facility
|
|
$15
|
|
|
|
$15
|
|
|
|
$15
|
|
|
|
$15
|
|
|
|
$15
|
|
|
|
$19
|
|
|
|
$94
|
|
|
|
$26
|
|
|
|
$68
|
|
|
72
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||||||||||||||
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
||||||||||||||||||
Electric Utility:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||
Retail - residential
|
|
$1,092.4
|
|
|
|
$1,063.4
|
|
|
|
$1,006.2
|
|
|
|
$601.5
|
|
|
|
$590.6
|
|
|
|
$535.6
|
|
|
|
$490.9
|
|
|
|
$472.8
|
|
|
|
$470.6
|
|
Retail - commercial
|
769.7
|
|
|
735.6
|
|
|
710.3
|
|
|
510.3
|
|
|
486.8
|
|
|
452.7
|
|
|
259.4
|
|
|
248.8
|
|
|
257.6
|
|
|||||||||
Retail - industrial
|
889.1
|
|
|
888.8
|
|
|
853.1
|
|
|
503.9
|
|
|
500.8
|
|
|
459.7
|
|
|
385.2
|
|
|
388.0
|
|
|
393.4
|
|
|||||||||
Wholesale
|
176.4
|
|
|
188.4
|
|
|
238.4
|
|
|
63.5
|
|
|
71.2
|
|
|
95.5
|
|
|
112.9
|
|
|
117.2
|
|
|
142.9
|
|
|||||||||
Bulk power and other
|
136.0
|
|
|
124.1
|
|
|
86.7
|
|
|
102.0
|
|
|
81.7
|
|
|
55.4
|
|
|
34.0
|
|
|
42.4
|
|
|
31.3
|
|
|||||||||
Total Electric Utility
|
3,063.6
|
|
|
3,000.3
|
|
|
2,894.7
|
|
|
1,781.2
|
|
|
1,731.1
|
|
|
1,598.9
|
|
|
1,282.4
|
|
|
1,269.2
|
|
|
1,295.8
|
|
|||||||||
Gas Utility:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||
Retail - residential
|
259.4
|
|
|
254.4
|
|
|
224.7
|
|
|
149.3
|
|
|
152.3
|
|
|
123.2
|
|
|
110.1
|
|
|
102.1
|
|
|
101.5
|
|
|||||||||
Retail - commercial
|
133.0
|
|
|
133.0
|
|
|
123.2
|
|
|
74.9
|
|
|
75.9
|
|
|
67.9
|
|
|
58.1
|
|
|
57.1
|
|
|
55.3
|
|
|||||||||
Retail - industrial
|
16.0
|
|
|
14.9
|
|
|
16.7
|
|
|
11.7
|
|
|
10.2
|
|
|
11.1
|
|
|
4.3
|
|
|
4.7
|
|
|
5.6
|
|
|||||||||
Transportation/other
|
46.8
|
|
|
44.3
|
|
|
36.3
|
|
|
28.3
|
|
|
27.8
|
|
|
23.8
|
|
|
18.5
|
|
|
16.5
|
|
|
12.5
|
|
|||||||||
Total Gas Utility
|
455.2
|
|
|
446.6
|
|
|
400.9
|
|
|
264.2
|
|
|
266.2
|
|
|
226.0
|
|
|
191.0
|
|
|
180.4
|
|
|
174.9
|
|
|||||||||
Other Utility:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||
Steam
|
37.2
|
|
|
35.2
|
|
|
34.6
|
|
|
37.2
|
|
|
35.2
|
|
|
34.6
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|||||||||
Other utility
|
9.3
|
|
|
12.8
|
|
|
12.9
|
|
|
7.0
|
|
|
9.8
|
|
|
10.8
|
|
|
2.3
|
|
|
3.0
|
|
|
2.1
|
|
|||||||||
Total Other Utility
|
46.5
|
|
|
48.0
|
|
|
47.5
|
|
|
44.2
|
|
|
45.0
|
|
|
45.4
|
|
|
2.3
|
|
|
3.0
|
|
|
2.1
|
|
|||||||||
Non-Utility and Other:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||
Transportation and other
|
82.4
|
|
|
39.6
|
|
|
39.1
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|||||||||
Total Non-Utility and Other
|
82.4
|
|
|
39.6
|
|
|
39.1
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|||||||||
Total revenues
|
|
$3,647.7
|
|
|
|
$3,534.5
|
|
|
|
$3,382.2
|
|
|
|
$2,089.6
|
|
|
|
$2,042.3
|
|
|
|
$1,870.3
|
|
|
|
$1,475.7
|
|
|
|
$1,452.6
|
|
|
|
$1,472.8
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||||||||||||||
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
||||||||||||||||||
Current tax expense (benefit):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||
Federal
|
|
($6.6
|
)
|
|
|
($1.0
|
)
|
|
|
($41.0
|
)
|
|
|
($11.0
|
)
|
|
|
$14.9
|
|
|
|
($27.9
|
)
|
|
|
$12.0
|
|
|
|
($9.2
|
)
|
|
|
$5.5
|
|
State
|
24.2
|
|
|
(5.1
|
)
|
|
8.5
|
|
|
24.3
|
|
|
(7.1
|
)
|
|
1.6
|
|
|
13.7
|
|
|
(4.4
|
)
|
|
2.5
|
|
|||||||||
IPL’s tax benefit riders
|
(4.5
|
)
|
|
(13.2
|
)
|
|
(40.4
|
)
|
|
(4.5
|
)
|
|
(13.2
|
)
|
|
(40.4
|
)
|
|
—
|
|
|
—
|
|
|
—
|
|
|||||||||
Deferred tax expense (benefit):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||
Federal
|
69.7
|
|
|
67.9
|
|
|
159.5
|
|
|
26.4
|
|
|
9.5
|
|
|
72.5
|
|
|
30.7
|
|
|
43.8
|
|
|
55.0
|
|
|||||||||
State
|
41.4
|
|
|
29.8
|
|
|
12.3
|
|
|
30.9
|
|
|
7.3
|
|
|
(2.2
|
)
|
|
6.3
|
|
|
22.1
|
|
|
16.6
|
|
|||||||||
Production tax credits
|
(54.7
|
)
|
|
(29.5
|
)
|
|
(31.1
|
)
|
|
(41.8
|
)
|
|
(14.0
|
)
|
|
(14.1
|
)
|
|
(12.8
|
)
|
|
(15.5
|
)
|
|
(17.0
|
)
|
|||||||||
Investment tax credits
|
(0.8
|
)
|
|
(1.2
|
)
|
|
(1.1
|
)
|
|
(0.2
|
)
|
|
(0.6
|
)
|
|
(0.4
|
)
|
|
(0.6
|
)
|
|
(0.6
|
)
|
|
(0.7
|
)
|
|||||||||
|
|
$68.7
|
|
|
|
$47.7
|
|
|
|
$66.7
|
|
|
|
$24.1
|
|
|
|
($3.2
|
)
|
|
|
($10.9
|
)
|
|
|
$49.3
|
|
|
|
$36.2
|
|
|
|
$61.9
|
|
|
73
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||||||
Deferred tax liabilities:
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Property
|
|
$2,021.5
|
|
|
|
$1,975.5
|
|
|
|
$1,183.5
|
|
|
|
$1,158.4
|
|
|
|
$770.0
|
|
|
|
$735.2
|
|
ATC Holdings
|
110.8
|
|
|
102.4
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
||||||
Other
|
85.1
|
|
|
80.5
|
|
|
76.5
|
|
|
69.4
|
|
|
32.1
|
|
|
34.4
|
|
||||||
Total deferred tax liabilities
|
2,217.4
|
|
|
2,158.4
|
|
|
1,260.0
|
|
|
1,227.8
|
|
|
802.1
|
|
|
769.6
|
|
||||||
Deferred tax assets:
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
Federal credit carryforwards
|
355.4
|
|
|
299.1
|
|
|
175.0
|
|
|
133.2
|
|
|
160.3
|
|
|
147.4
|
|
||||||
Net operating losses carryforwards - federal
|
60.5
|
|
|
158.6
|
|
|
56.3
|
|
|
114.1
|
|
|
0.5
|
|
|
26.4
|
|
||||||
Net operating losses carryforwards - state
|
36.6
|
|
|
47.0
|
|
|
0.6
|
|
|
0.9
|
|
|
0.1
|
|
|
0.5
|
|
||||||
Other
|
60.5
|
|
|
59.8
|
|
|
20.6
|
|
|
22.8
|
|
|
15.8
|
|
|
14.1
|
|
||||||
Subtotal deferred tax assets
|
513.0
|
|
|
564.5
|
|
|
252.5
|
|
|
271.0
|
|
|
176.7
|
|
|
188.4
|
|
||||||
Valuation allowances
|
(9.6
|
)
|
|
(9.2
|
)
|
|
(0.5
|
)
|
|
(0.5
|
)
|
|
(0.8
|
)
|
|
(0.8
|
)
|
||||||
Total deferred tax assets
|
503.4
|
|
|
555.3
|
|
|
252.0
|
|
|
270.5
|
|
|
175.9
|
|
|
187.6
|
|
||||||
Total deferred tax liabilities, net
|
|
$1,714.0
|
|
|
|
$1,603.1
|
|
|
|
$1,008.0
|
|
|
|
$957.3
|
|
|
|
$626.2
|
|
|
|
$582.0
|
|
|
Range of Expiration Dates
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||
Federal net operating losses
|
2037
|
|
|
$297
|
|
|
|
$276
|
|
|
|
$2
|
|
State net operating losses
|
2020-2039
|
|
615
|
|
|
9
|
|
|
2
|
|
|||
Federal tax credits
|
2022-2039
|
|
355
|
|
|
175
|
|
|
160
|
|
Consolidated federal income tax returns (a)
|
2016
|
-
|
2018
|
Consolidated Iowa income tax returns (b)
|
2016
|
-
|
2018
|
Wisconsin combined tax returns (c)
|
2015
|
-
|
2018
|
(a)
|
The 2016 and 2017 federal tax returns are effectively settled as a result of participation in the IRS Compliance Assurance Program, which allows Alliant Energy and the IRS to work together to resolve issues related to Alliant Energy’s current tax year before filing its federal income tax return. The statute of limitations for these federal tax returns expires three years from each filing date.
|
(b)
|
The statute of limitations for these Iowa tax returns expires three years from each filing date.
|
(c)
|
The statute of limitations for these Wisconsin combined tax returns expires four years from each filing date.
|
|
74
|
|
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
|||||||||||||||||
Alliant Energy
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
|||||||||
Discount rate for benefit obligations
|
3.48%
|
|
4.34%
|
|
3.66%
|
|
3.40%
|
|
4.24%
|
|
3.53%
|
|||||||||
Discount rate for net periodic cost
|
4.34%
|
|
3.66%
|
|
4.19%
|
|
4.24%
|
|
3.53%
|
|
3.98%
|
|||||||||
Expected rate of return on plan assets
|
7.60%
|
|
7.60%
|
|
7.60%
|
|
5.44%
|
|
5.44%
|
|
5.80%
|
|||||||||
Interest crediting rate for Alliant Energy Cash Balance Pension Plan
|
5.52%
|
|
5.04%
|
|
4.64%
|
|
N/A
|
|
N/A
|
|
N/A
|
|||||||||
Rate of compensation increase
|
3.65
|
%
|
-
|
4.50%
|
|
3.65
|
%
|
-
|
4.50%
|
|
3.65
|
%
|
-
|
4.50%
|
|
N/A
|
|
N/A
|
|
N/A
|
|
Qualified Defined Benefit Pension Plan
|
|
OPEB Plans
|
||||||||
IPL
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
Discount rate for benefit obligations
|
3.51%
|
|
4.35%
|
|
3.68%
|
|
3.39%
|
|
4.23%
|
|
3.51%
|
Discount rate for net periodic cost
|
4.35%
|
|
3.68%
|
|
4.22%
|
|
4.23%
|
|
3.51%
|
|
3.95%
|
Expected rate of return on plan assets
|
7.60%
|
|
7.60%
|
|
7.60%
|
|
5.60%
|
|
5.60%
|
|
6.20%
|
Rate of compensation increase
|
3.65%
|
|
3.65%
|
|
3.65%
|
|
N/A
|
|
N/A
|
|
N/A
|
|
Qualified Defined Benefit Pension Plan
|
|
OPEB Plans
|
||||||||
WPL
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
Discount rate for benefit obligations
|
3.50%
|
|
4.35%
|
|
3.69%
|
|
3.39%
|
|
4.23%
|
|
3.51%
|
Discount rate for net periodic cost
|
4.35%
|
|
3.69%
|
|
4.23%
|
|
4.23%
|
|
3.51%
|
|
3.96%
|
Expected rate of return on plan assets
|
7.60%
|
|
7.60%
|
|
7.60%
|
|
3.81%
|
|
3.84%
|
|
3.50%
|
Rate of compensation increase
|
3.65%
|
|
3.65%
|
|
3.65%
|
|
N/A
|
|
N/A
|
|
N/A
|
|
75
|
|
Alliant Energy
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
||||||||||||||||||||
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
|||||||||||||
Service cost
|
|
$9.7
|
|
|
|
$12.1
|
|
|
|
$12.5
|
|
|
|
$3.3
|
|
|
|
$4.2
|
|
|
|
$5.0
|
|
Interest cost
|
49.8
|
|
|
46.8
|
|
|
51.0
|
|
|
8.5
|
|
|
7.7
|
|
|
8.6
|
|
||||||
Expected return on plan assets (a)
|
(60.1
|
)
|
|
(69.7
|
)
|
|
(65.5
|
)
|
|
(5.0
|
)
|
|
(6.0
|
)
|
|
(6.1
|
)
|
||||||
Amortization of prior service credit (b)
|
(0.7
|
)
|
|
(0.7
|
)
|
|
(0.4
|
)
|
|
(0.2
|
)
|
|
(0.2
|
)
|
|
(0.2
|
)
|
||||||
Amortization of actuarial loss (c)
|
36.4
|
|
|
35.2
|
|
|
37.6
|
|
|
3.3
|
|
|
3.4
|
|
|
3.8
|
|
||||||
Settlement losses (d)
|
—
|
|
|
—
|
|
|
0.9
|
|
|
—
|
|
|
—
|
|
|
—
|
|
||||||
|
|
$35.1
|
|
|
|
$23.7
|
|
|
|
$36.1
|
|
|
|
$9.9
|
|
|
|
$9.1
|
|
|
|
$11.1
|
|
IPL
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
||||||||||||||||||||
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
|||||||||||||
Service cost
|
|
$6.0
|
|
|
|
$7.4
|
|
|
|
$7.3
|
|
|
|
$1.3
|
|
|
|
$1.7
|
|
|
|
$2.1
|
|
Interest cost
|
22.7
|
|
|
21.4
|
|
|
23.5
|
|
|
3.4
|
|
|
3.1
|
|
|
3.5
|
|
||||||
Expected return on plan assets (a)
|
(28.1
|
)
|
|
(32.6
|
)
|
|
(30.8
|
)
|
|
(3.6
|
)
|
|
(4.4
|
)
|
|
(4.3
|
)
|
||||||
Amortization of prior service credit (b)
|
(0.2
|
)
|
|
(0.2
|
)
|
|
(0.2
|
)
|
|
—
|
|
|
—
|
|
|
—
|
|
||||||
Amortization of actuarial loss (c)
|
15.7
|
|
|
14.9
|
|
|
16.1
|
|
|
1.5
|
|
|
1.3
|
|
|
2.0
|
|
||||||
|
|
$16.1
|
|
|
|
$10.9
|
|
|
|
$15.9
|
|
|
|
$2.6
|
|
|
|
$1.7
|
|
|
|
$3.3
|
|
WPL
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
||||||||||||||||||||
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
|||||||||||||
Service cost
|
|
$3.5
|
|
|
|
$4.4
|
|
|
|
$4.9
|
|
|
|
$1.3
|
|
|
|
$1.6
|
|
|
|
$1.9
|
|
Interest cost
|
21.5
|
|
|
20.2
|
|
|
21.8
|
|
|
3.3
|
|
|
3.1
|
|
|
3.4
|
|
||||||
Expected return on plan assets (a)
|
(26.2
|
)
|
|
(30.4
|
)
|
|
(28.5
|
)
|
|
(0.6
|
)
|
|
(0.6
|
)
|
|
(0.8
|
)
|
||||||
Amortization of prior service cost (credit) (b)
|
(0.2
|
)
|
|
(0.1
|
)
|
|
0.1
|
|
|
(0.2
|
)
|
|
(0.2
|
)
|
|
(0.2
|
)
|
||||||
Amortization of actuarial loss (c)
|
17.6
|
|
|
17.2
|
|
|
18.5
|
|
|
1.6
|
|
|
2.0
|
|
|
1.6
|
|
||||||
|
|
$16.2
|
|
|
|
$11.3
|
|
|
|
$16.8
|
|
|
|
$5.4
|
|
|
|
$5.9
|
|
|
|
$5.9
|
|
(a)
|
The expected return on plan assets is based on the expected rate of return on plan assets and the fair value approach to the market-related value of plan assets.
|
(b)
|
Unrecognized prior service costs (credits) for the OPEB plans are amortized over the average future service period to full eligibility of the participants of each plan.
|
(c)
|
Unrecognized net actuarial gains or losses in excess of 10% of the greater of the plans’ benefit obligations or assets are amortized over the average future service lives of plan participants, except for the Alliant Energy Cash Balance Pension Plan where gains or losses outside the 10% threshold are amortized over the time period the participants are expected to receive benefits.
|
(d)
|
Settlement losses related to payments made to retired executives of Alliant Energy.
|
|
76
|
|
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
||||||||||||
Alliant Energy
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||
Change in benefit obligation:
|
|
|
|
|
|
|
|
||||||||
Net benefit obligation at January 1
|
|
$1,175.0
|
|
|
|
$1,303.1
|
|
|
|
$206.1
|
|
|
|
$222.3
|
|
Service cost
|
9.7
|
|
|
12.1
|
|
|
3.3
|
|
|
4.2
|
|
||||
Interest cost
|
49.8
|
|
|
46.8
|
|
|
8.5
|
|
|
7.7
|
|
||||
Plan participants’ contributions
|
—
|
|
|
—
|
|
|
3.4
|
|
|
3.1
|
|
||||
Actuarial (gain) loss
|
124.6
|
|
|
(96.2
|
)
|
|
13.6
|
|
|
(8.2
|
)
|
||||
Gross benefits paid
|
(79.4
|
)
|
|
(90.8
|
)
|
|
(21.3
|
)
|
|
(23.0
|
)
|
||||
Net benefit obligation at December 31
|
1,279.7
|
|
|
1,175.0
|
|
|
213.6
|
|
|
206.1
|
|
||||
Change in plan assets:
|
|
|
|
|
|
|
|
||||||||
Fair value of plan assets at January 1
|
808.6
|
|
|
950.7
|
|
|
99.1
|
|
|
111.1
|
|
||||
Actual return on plan assets
|
168.1
|
|
|
(57.8
|
)
|
|
14.6
|
|
|
(2.6
|
)
|
||||
Employer contributions
|
33.1
|
|
|
6.5
|
|
|
9.1
|
|
|
10.5
|
|
||||
Plan participants’ contributions
|
—
|
|
|
—
|
|
|
3.4
|
|
|
3.1
|
|
||||
Gross benefits paid
|
(79.4
|
)
|
|
(90.8
|
)
|
|
(21.3
|
)
|
|
(23.0
|
)
|
||||
Fair value of plan assets at December 31
|
930.4
|
|
|
808.6
|
|
|
104.9
|
|
|
99.1
|
|
||||
Under funded status at December 31
|
|
($349.3
|
)
|
|
|
($366.4
|
)
|
|
|
($108.7
|
)
|
|
|
($107.0
|
)
|
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
||||||||||||
Alliant Energy
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||
Amounts recognized on the balance sheets consist of:
|
|
|
|
|
|
|
|
||||||||
Non-current assets
|
|
$—
|
|
|
|
$—
|
|
|
|
$9.8
|
|
|
|
$7.5
|
|
Current liabilities
|
(14.3
|
)
|
|
(2.3
|
)
|
|
(8.1
|
)
|
|
(9.6
|
)
|
||||
Pension and other benefit obligations
|
(335.0
|
)
|
|
(364.1
|
)
|
|
(110.4
|
)
|
|
(104.9
|
)
|
||||
Net amounts recognized at December 31
|
|
($349.3
|
)
|
|
|
($366.4
|
)
|
|
|
($108.7
|
)
|
|
|
($107.0
|
)
|
Amounts recognized in Regulatory Assets consist of:
|
|
|
|
|
|
|
|
||||||||
Net actuarial loss
|
|
$485.3
|
|
|
|
$505.2
|
|
|
|
$45.2
|
|
|
|
$44.5
|
|
Prior service credit
|
(5.1
|
)
|
|
(5.8
|
)
|
|
(0.9
|
)
|
|
(1.1
|
)
|
||||
|
|
$480.2
|
|
|
|
$499.4
|
|
|
|
$44.3
|
|
|
|
$43.4
|
|
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
||||||||||||
IPL
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||
Change in benefit obligation:
|
|
|
|
|
|
|
|
||||||||
Net benefit obligation at January 1
|
|
$533.9
|
|
|
|
$592.9
|
|
|
|
$82.5
|
|
|
|
$89.4
|
|
Service cost
|
6.0
|
|
|
7.4
|
|
|
1.3
|
|
|
1.7
|
|
||||
Interest cost
|
22.7
|
|
|
21.4
|
|
|
3.4
|
|
|
3.1
|
|
||||
Plan participants’ contributions
|
—
|
|
|
—
|
|
|
1.3
|
|
|
1.0
|
|
||||
Actuarial (gain) loss
|
55.9
|
|
|
(44.4
|
)
|
|
5.7
|
|
|
(4.3
|
)
|
||||
Gross benefits paid
|
(37.3
|
)
|
|
(43.4
|
)
|
|
(8.5
|
)
|
|
(8.4
|
)
|
||||
Net benefit obligation at December 31
|
581.2
|
|
|
533.9
|
|
|
85.7
|
|
|
82.5
|
|
||||
Change in plan assets:
|
|
|
|
|
|
|
|
||||||||
Fair value of plan assets at January 1
|
377.8
|
|
|
443.7
|
|
|
66.7
|
|
|
72.9
|
|
||||
Actual return on plan assets
|
78.9
|
|
|
(26.8
|
)
|
|
10.1
|
|
|
(1.4
|
)
|
||||
Employer contributions
|
16.6
|
|
|
4.3
|
|
|
2.3
|
|
|
2.6
|
|
||||
Plan participants’ contributions
|
—
|
|
|
—
|
|
|
1.3
|
|
|
1.0
|
|
||||
Gross benefits paid
|
(37.3
|
)
|
|
(43.4
|
)
|
|
(8.5
|
)
|
|
(8.4
|
)
|
||||
Fair value of plan assets at December 31
|
436.0
|
|
|
377.8
|
|
|
71.9
|
|
|
66.7
|
|
||||
Under funded status at December 31
|
|
($145.2
|
)
|
|
|
($156.1
|
)
|
|
|
($13.8
|
)
|
|
|
($15.8
|
)
|
|
77
|
|
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
||||||||||||
IPL
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||
Amounts recognized on the balance sheets consist of:
|
|
|
|
|
|
|
|
||||||||
Non-current assets
|
|
$—
|
|
|
|
$—
|
|
|
|
$6.6
|
|
|
|
$4.7
|
|
Current liabilities
|
(0.5
|
)
|
|
(0.6
|
)
|
|
(1.8
|
)
|
|
(1.9
|
)
|
||||
Pension and other benefit obligations
|
(144.7
|
)
|
|
(155.5
|
)
|
|
(18.6
|
)
|
|
(18.6
|
)
|
||||
Net amounts recognized at December 31
|
|
($145.2
|
)
|
|
|
($156.1
|
)
|
|
|
($13.8
|
)
|
|
|
($15.8
|
)
|
Amounts recognized in Regulatory Assets consist of:
|
|
|
|
|
|
|
|
||||||||
Net actuarial loss
|
|
$208.2
|
|
|
|
$218.8
|
|
|
|
$16.6
|
|
|
|
$18.8
|
|
Prior service credit
|
(1.7
|
)
|
|
(1.8
|
)
|
|
—
|
|
|
—
|
|
||||
|
|
$206.5
|
|
|
|
$217.0
|
|
|
|
$16.6
|
|
|
|
$18.8
|
|
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
||||||||||||
WPL
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||
Change in benefit obligation:
|
|
|
|
|
|
|
|
||||||||
Net benefit obligation at January 1
|
|
$506.6
|
|
|
|
$559.8
|
|
|
|
$83.2
|
|
|
|
$90.4
|
|
Service cost
|
3.5
|
|
|
4.4
|
|
|
1.3
|
|
|
1.6
|
|
||||
Interest cost
|
21.5
|
|
|
20.2
|
|
|
3.3
|
|
|
3.1
|
|
||||
Plan participants’ contributions
|
—
|
|
|
—
|
|
|
1.5
|
|
|
1.4
|
|
||||
Actuarial (gain) loss
|
53.8
|
|
|
(40.0
|
)
|
|
5.0
|
|
|
(2.5
|
)
|
||||
Gross benefits paid
|
(35.3
|
)
|
|
(37.8
|
)
|
|
(9.0
|
)
|
|
(10.8
|
)
|
||||
Net benefit obligation at December 31
|
550.1
|
|
|
506.6
|
|
|
85.3
|
|
|
83.2
|
|
||||
Change in plan assets:
|
|
|
|
|
|
|
|
||||||||
Fair value of plan assets at January 1
|
352.2
|
|
|
415.0
|
|
|
16.7
|
|
|
18.7
|
|
||||
Actual return on plan assets
|
73.4
|
|
|
(25.1
|
)
|
|
1.7
|
|
|
(0.1
|
)
|
||||
Employer contributions
|
15.7
|
|
|
0.1
|
|
|
6.2
|
|
|
7.5
|
|
||||
Plan participants’ contributions
|
—
|
|
|
—
|
|
|
1.5
|
|
|
1.4
|
|
||||
Gross benefits paid
|
(35.3
|
)
|
|
(37.8
|
)
|
|
(9.0
|
)
|
|
(10.8
|
)
|
||||
Fair value of plan assets at December 31
|
406.0
|
|
|
352.2
|
|
|
17.1
|
|
|
16.7
|
|
||||
Under funded status at December 31
|
|
($144.1
|
)
|
|
|
($154.4
|
)
|
|
|
($68.2
|
)
|
|
|
($66.5
|
)
|
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
||||||||||||
WPL
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||
Amounts recognized on the balance sheets consist of:
|
|
|
|
|
|
|
|
||||||||
Non-current assets
|
|
$—
|
|
|
|
$—
|
|
|
|
$3.2
|
|
|
|
$2.8
|
|
Current liabilities
|
(0.1
|
)
|
|
(0.1
|
)
|
|
(6.0
|
)
|
|
(7.4
|
)
|
||||
Pension and other benefit obligations
|
(144.0
|
)
|
|
(154.3
|
)
|
|
(65.4
|
)
|
|
(61.9
|
)
|
||||
Net amounts recognized at December 31
|
|
($144.1
|
)
|
|
|
($154.4
|
)
|
|
|
($68.2
|
)
|
|
|
($66.5
|
)
|
Amounts recognized in Regulatory Assets consist of:
|
|
|
|
|
|
|
|
||||||||
Net actuarial loss
|
|
$212.0
|
|
|
|
$223.0
|
|
|
|
$22.2
|
|
|
|
$19.9
|
|
Prior service credit
|
(1.2
|
)
|
|
(1.3
|
)
|
|
(0.9
|
)
|
|
(1.1
|
)
|
||||
|
|
$210.8
|
|
|
|
$221.7
|
|
|
|
$21.3
|
|
|
|
$18.8
|
|
|
78
|
|
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
||||||||||||
Alliant Energy
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||
Accumulated benefit obligations
|
|
$1,234.4
|
|
|
|
$1,139.9
|
|
|
|
$213.6
|
|
|
|
$206.1
|
|
Plans with accumulated benefit obligations in excess of plan assets:
|
|
|
|
|
|
|
|
||||||||
Accumulated benefit obligations
|
1,234.4
|
|
|
1,139.9
|
|
|
213.6
|
|
|
206.1
|
|
||||
Fair value of plan assets
|
930.4
|
|
|
808.6
|
|
|
104.9
|
|
|
99.1
|
|
||||
Plans with projected benefit obligations in excess of plan assets:
|
|
|
|
|
|
|
|
||||||||
Projected benefit obligations
|
1,279.7
|
|
|
1,175.0
|
|
|
N/A
|
|
|
N/A
|
|
||||
Fair value of plan assets
|
930.4
|
|
|
808.6
|
|
|
N/A
|
|
|
N/A
|
|
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
||||||||||||
IPL
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||
Accumulated benefit obligations
|
|
$557.8
|
|
|
|
$514.3
|
|
|
|
$85.7
|
|
|
|
$82.5
|
|
Plans with accumulated benefit obligations in excess of plan assets:
|
|
|
|
|
|
|
|
||||||||
Accumulated benefit obligations
|
557.8
|
|
|
514.3
|
|
|
85.7
|
|
|
82.5
|
|
||||
Fair value of plan assets
|
436.0
|
|
|
377.8
|
|
|
71.9
|
|
|
66.7
|
|
||||
Plans with projected benefit obligations in excess of plan assets:
|
|
|
|
|
|
|
|
||||||||
Projected benefit obligations
|
581.2
|
|
|
533.9
|
|
|
N/A
|
|
|
N/A
|
|
||||
Fair value of plan assets
|
436.0
|
|
|
377.8
|
|
|
N/A
|
|
|
N/A
|
|
|
Defined Benefit Pension Plans
|
|
OPEB Plans
|
||||||||||||
WPL
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||
Accumulated benefit obligations
|
|
$535.9
|
|
|
|
$494.8
|
|
|
|
$85.3
|
|
|
|
$83.2
|
|
Plans with accumulated benefit obligations in excess of plan assets:
|
|
|
|
|
|
|
|
||||||||
Accumulated benefit obligations
|
535.9
|
|
|
494.8
|
|
|
85.3
|
|
|
83.2
|
|
||||
Fair value of plan assets
|
406.0
|
|
|
352.2
|
|
|
17.1
|
|
|
16.7
|
|
||||
Plans with projected benefit obligations in excess of plan assets:
|
|
|
|
|
|
|
|
||||||||
Projected benefit obligations
|
550.1
|
|
|
506.6
|
|
|
N/A
|
|
|
N/A
|
|
||||
Fair value of plan assets
|
406.0
|
|
|
352.2
|
|
|
N/A
|
|
|
N/A
|
|
|
IPL
|
|
WPL
|
||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||
Regulatory assets
|
|
$39.4
|
|
|
|
$38.2
|
|
|
|
$29.0
|
|
|
|
$27.7
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||
Defined benefit pension plans (a)
|
|
$59.8
|
|
|
|
$19.4
|
|
|
|
$21.8
|
|
OPEB plans
|
8.1
|
|
|
1.8
|
|
|
6.0
|
|
(a)
|
Alliant Energy sponsors several non-qualified defined benefit pension plans that cover certain current and former key employees of IPL and WPL. Alliant Energy allocates pension costs to IPL and WPL for these plans. In addition, IPL and WPL amounts reflect funding for their non-bargaining employees who are participants in the Alliant Energy and Corporate Services sponsored qualified and non-qualified defined benefit pension plans.
|
|
79
|
|
Alliant Energy
|
2020
|
|
2021
|
|
2022
|
|
2023
|
|
2024
|
|
2025 - 2029
|
||||||||||||
Defined benefit pension benefits
|
|
$86.4
|
|
|
|
$74.5
|
|
|
|
$76.6
|
|
|
|
$77.5
|
|
|
|
$78.2
|
|
|
|
$390.2
|
|
OPEB
|
17.7
|
|
|
17.7
|
|
|
17.5
|
|
|
17.1
|
|
|
16.8
|
|
|
76.6
|
|
||||||
|
|
$104.1
|
|
|
|
$92.2
|
|
|
|
$94.1
|
|
|
|
$94.6
|
|
|
|
$95.0
|
|
|
|
$466.8
|
|
IPL
|
2020
|
|
2021
|
|
2022
|
|
2023
|
|
2024
|
|
2025 - 2029
|
||||||||||||
Defined benefit pension benefits
|
|
$35.1
|
|
|
|
$35.3
|
|
|
|
$36.6
|
|
|
|
$37.7
|
|
|
|
$36.6
|
|
|
|
$182.5
|
|
OPEB
|
7.2
|
|
|
7.1
|
|
|
7.1
|
|
|
7.0
|
|
|
6.9
|
|
|
30.6
|
|
||||||
|
|
$42.3
|
|
|
|
$42.4
|
|
|
|
$43.7
|
|
|
|
$44.7
|
|
|
|
$43.5
|
|
|
|
$213.1
|
|
WPL
|
2020
|
|
2021
|
|
2022
|
|
2023
|
|
2024
|
|
2025 - 2029
|
||||||||||||
Defined benefit pension benefits
|
|
$32.0
|
|
|
|
$32.0
|
|
|
|
$32.1
|
|
|
|
$32.4
|
|
|
|
$33.1
|
|
|
|
$165.2
|
|
OPEB
|
7.3
|
|
|
7.4
|
|
|
7.1
|
|
|
6.8
|
|
|
6.7
|
|
|
30.2
|
|
||||||
|
|
$39.3
|
|
|
|
$39.4
|
|
|
|
$39.2
|
|
|
|
$39.2
|
|
|
|
$39.8
|
|
|
|
$195.4
|
|
|
Target Range
|
|
Actual
|
|||
|
Allocation
|
|
Allocation
|
|||
Cash and equivalents
|
0
|
%
|
-
|
5%
|
|
5%
|
Equity securities - U.S.
|
6
|
%
|
-
|
56%
|
|
25%
|
Equity securities - international
|
14
|
%
|
-
|
34%
|
|
22%
|
Global asset securities
|
5
|
%
|
-
|
15%
|
|
9%
|
Risk parity securities
|
5
|
%
|
-
|
15%
|
|
10%
|
Fixed income securities
|
20
|
%
|
-
|
40%
|
|
29%
|
|
Target Range
|
|
Actual
|
|||
|
Allocation
|
|
Allocation
|
|||
Cash and equivalents
|
0
|
%
|
-
|
5%
|
|
3%
|
Equity securities - U.S.
|
0
|
%
|
-
|
46%
|
|
25%
|
Equity securities - international
|
0
|
%
|
-
|
34%
|
|
2%
|
Fixed income securities
|
20
|
%
|
-
|
100%
|
|
70%
|
|
80
|
|
|
2019
|
|
2018
|
||||||||||||||||||||||||||||
|
Fair
|
|
Level
|
|
Level
|
|
Level
|
|
Fair
|
|
Level
|
|
Level
|
|
Level
|
||||||||||||||||
Alliant Energy
|
Value
|
|
1
|
|
2
|
|
3
|
|
Value
|
|
1
|
|
2
|
|
3
|
||||||||||||||||
Cash and equivalents
|
|
$45.7
|
|
|
|
$3.7
|
|
|
|
$42.0
|
|
|
|
$—
|
|
|
|
$36.4
|
|
|
|
$3.0
|
|
|
|
$33.4
|
|
|
|
$—
|
|
Equity securities - U.S.
|
160.6
|
|
|
160.6
|
|
|
—
|
|
|
—
|
|
|
130.2
|
|
|
130.2
|
|
|
—
|
|
|
—
|
|
||||||||
Equity securities - international
|
135.9
|
|
|
135.9
|
|
|
—
|
|
|
—
|
|
|
116.0
|
|
|
116.0
|
|
|
—
|
|
|
—
|
|
||||||||
Global asset securities
|
47.2
|
|
|
47.2
|
|
|
—
|
|
|
—
|
|
|
42.1
|
|
|
42.1
|
|
|
—
|
|
|
—
|
|
||||||||
Fixed income securities
|
130.7
|
|
|
58.0
|
|
|
72.7
|
|
|
—
|
|
|
127.8
|
|
|
52.5
|
|
|
75.3
|
|
|
—
|
|
||||||||
Total assets in fair value hierarchy
|
520.1
|
|
|
|
$405.4
|
|
|
|
$114.7
|
|
|
|
$—
|
|
|
452.5
|
|
|
|
$343.8
|
|
|
|
$108.7
|
|
|
|
$—
|
|
||
Assets measured at net asset value
|
410.1
|
|
|
|
|
|
|
|
|
355.4
|
|
|
|
|
|
|
|
||||||||||||||
Accrued investment income
|
0.9
|
|
|
|
|
|
|
|
|
1.2
|
|
|
|
|
|
|
|
||||||||||||||
Due to brokers, net (pending trades with brokers)
|
(0.7
|
)
|
|
|
|
|
|
|
|
(0.5
|
)
|
|
|
|
|
|
|
||||||||||||||
Total pension plan assets
|
|
$930.4
|
|
|
|
|
|
|
|
|
|
$808.6
|
|
|
|
|
|
|
|
|
2019
|
|
2018
|
||||||||||||||||||||||||||||
|
Fair
|
|
Level
|
|
Level
|
|
Level
|
|
Fair
|
|
Level
|
|
Level
|
|
Level
|
||||||||||||||||
IPL
|
Value
|
|
1
|
|
2
|
|
3
|
|
Value
|
|
1
|
|
2
|
|
3
|
||||||||||||||||
Cash and equivalents
|
|
$21.4
|
|
|
|
$1.7
|
|
|
|
$19.7
|
|
|
|
$—
|
|
|
|
$17.0
|
|
|
|
$1.4
|
|
|
|
$15.6
|
|
|
|
$—
|
|
Equity securities - U.S.
|
75.2
|
|
|
75.2
|
|
|
—
|
|
|
—
|
|
|
60.8
|
|
|
60.8
|
|
|
—
|
|
|
—
|
|
||||||||
Equity securities - international
|
63.7
|
|
|
63.7
|
|
|
—
|
|
|
—
|
|
|
54.2
|
|
|
54.2
|
|
|
—
|
|
|
—
|
|
||||||||
Global asset securities
|
22.1
|
|
|
22.1
|
|
|
—
|
|
|
—
|
|
|
19.7
|
|
|
19.7
|
|
|
—
|
|
|
—
|
|
||||||||
Fixed income securities
|
61.3
|
|
|
27.2
|
|
|
34.1
|
|
|
—
|
|
|
59.7
|
|
|
24.5
|
|
|
35.2
|
|
|
—
|
|
||||||||
Total assets in fair value hierarchy
|
243.7
|
|
|
|
$189.9
|
|
|
|
$53.8
|
|
|
|
$—
|
|
|
211.4
|
|
|
|
$160.6
|
|
|
|
$50.8
|
|
|
|
$—
|
|
||
Assets measured at net asset value
|
192.2
|
|
|
|
|
|
|
|
|
166.1
|
|
|
|
|
|
|
|
||||||||||||||
Accrued investment income
|
0.4
|
|
|
|
|
|
|
|
|
0.6
|
|
|
|
|
|
|
|
||||||||||||||
Due to brokers, net (pending trades with brokers)
|
(0.3
|
)
|
|
|
|
|
|
|
|
(0.3
|
)
|
|
|
|
|
|
|
||||||||||||||
Total pension plan assets
|
|
$436.0
|
|
|
|
|
|
|
|
|
|
$377.8
|
|
|
|
|
|
|
|
|
2019
|
|
2018
|
||||||||||||||||||||||||||||
|
Fair
|
|
Level
|
|
Level
|
|
Level
|
|
Fair
|
|
Level
|
|
Level
|
|
Level
|
||||||||||||||||
WPL
|
Value
|
|
1
|
|
2
|
|
3
|
|
Value
|
|
1
|
|
2
|
|
3
|
||||||||||||||||
Cash and equivalents
|
|
$19.9
|
|
|
|
$1.6
|
|
|
|
$18.3
|
|
|
|
$—
|
|
|
|
$15.9
|
|
|
|
$1.3
|
|
|
|
$14.6
|
|
|
|
$—
|
|
Equity securities - U.S.
|
70.1
|
|
|
70.1
|
|
|
—
|
|
|
—
|
|
|
56.7
|
|
|
56.7
|
|
|
—
|
|
|
—
|
|
||||||||
Equity securities - international
|
59.3
|
|
|
59.3
|
|
|
—
|
|
|
—
|
|
|
50.5
|
|
|
50.5
|
|
|
—
|
|
|
—
|
|
||||||||
Global asset securities
|
20.6
|
|
|
20.6
|
|
|
—
|
|
|
—
|
|
|
18.4
|
|
|
18.4
|
|
|
—
|
|
|
—
|
|
||||||||
Fixed income securities
|
57.0
|
|
|
25.3
|
|
|
31.7
|
|
|
—
|
|
|
55.6
|
|
|
22.8
|
|
|
32.8
|
|
|
—
|
|
||||||||
Total assets in fair value hierarchy
|
226.9
|
|
|
|
$176.9
|
|
|
|
$50.0
|
|
|
|
$—
|
|
|
197.1
|
|
|
|
$149.7
|
|
|
|
$47.4
|
|
|
|
$—
|
|
||
Assets measured at net asset value
|
179.0
|
|
|
|
|
|
|
|
|
154.8
|
|
|
|
|
|
|
|
||||||||||||||
Accrued investment income
|
0.4
|
|
|
|
|
|
|
|
|
0.5
|
|
|
|
|
|
|
|
||||||||||||||
Due to brokers, net (pending trades with brokers)
|
(0.3
|
)
|
|
|
|
|
|
|
|
(0.2
|
)
|
|
|
|
|
|
|
||||||||||||||
Total pension plan assets
|
|
$406.0
|
|
|
|
|
|
|
|
|
|
$352.2
|
|
|
|
|
|
|
|
|
81
|
|
|
2019
|
|
2018
|
||||||||||||||||||||||||||||
|
Fair
|
|
Level
|
|
Level
|
|
Level
|
|
Fair
|
|
Level
|
|
Level
|
|
Level
|
||||||||||||||||
Alliant Energy
|
Value
|
|
1
|
|
2
|
|
3
|
|
Value
|
|
1
|
|
2
|
|
3
|
||||||||||||||||
Cash and equivalents
|
|
$3.4
|
|
|
|
$3.0
|
|
|
|
$0.4
|
|
|
|
$—
|
|
|
|
$1.4
|
|
|
|
$1.1
|
|
|
|
$0.3
|
|
|
|
$—
|
|
Equity securities - U.S.
|
3.7
|
|
|
3.7
|
|
|
—
|
|
|
—
|
|
|
3.9
|
|
|
3.9
|
|
|
—
|
|
|
—
|
|
||||||||
Equity securities - international
|
2.8
|
|
|
2.8
|
|
|
—
|
|
|
—
|
|
|
2.9
|
|
|
2.9
|
|
|
—
|
|
|
—
|
|
||||||||
Global asset securities
|
0.5
|
|
|
0.5
|
|
|
—
|
|
|
—
|
|
|
0.4
|
|
|
0.4
|
|
|
—
|
|
|
—
|
|
||||||||
Fixed income securities
|
68.5
|
|
|
67.8
|
|
|
0.7
|
|
|
—
|
|
|
68.2
|
|
|
67.5
|
|
|
0.7
|
|
|
—
|
|
||||||||
Total assets in fair value hierarchy
|
78.9
|
|
|
|
$77.8
|
|
|
|
$1.1
|
|
|
|
$—
|
|
|
76.8
|
|
|
|
$75.8
|
|
|
|
$1.0
|
|
|
|
$—
|
|
||
Assets measured at net asset value
|
26.0
|
|
|
|
|
|
|
|
|
22.3
|
|
|
|
|
|
|
|
||||||||||||||
Total OPEB plan assets
|
|
$104.9
|
|
|
|
|
|
|
|
|
|
$99.1
|
|
|
|
|
|
|
|
|
2019
|
|
2018
|
||||||||||||||||||||||||||||
|
Fair
|
|
Level
|
|
Level
|
|
Level
|
|
Fair
|
|
Level
|
|
Level
|
|
Level
|
||||||||||||||||
IPL
|
Value
|
|
1
|
|
2
|
|
3
|
|
Value
|
|
1
|
|
2
|
|
3
|
||||||||||||||||
Cash and equivalents
|
|
$1.5
|
|
|
|
$1.5
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$0.7
|
|
|
|
$0.7
|
|
|
|
$—
|
|
|
|
$—
|
|
Fixed income securities
|
48.3
|
|
|
48.3
|
|
|
—
|
|
|
—
|
|
|
47.0
|
|
|
47.0
|
|
|
—
|
|
|
—
|
|
||||||||
Total assets in fair value hierarchy
|
49.8
|
|
|
|
$49.8
|
|
|
|
$—
|
|
|
|
$—
|
|
|
47.7
|
|
|
|
$47.7
|
|
|
|
$—
|
|
|
|
$—
|
|
||
Assets measured at net asset value
|
22.1
|
|
|
|
|
|
|
|
|
19.0
|
|
|
|
|
|
|
|
||||||||||||||
Total OPEB plan assets
|
|
$71.9
|
|
|
|
|
|
|
|
|
|
$66.7
|
|
|
|
|
|
|
|
|
2019
|
|
2018
|
||||||||||||||||||||||||||||
|
Fair
|
|
Level
|
|
Level
|
|
Level
|
|
Fair
|
|
Level
|
|
Level
|
|
Level
|
||||||||||||||||
WPL
|
Value
|
|
1
|
|
2
|
|
3
|
|
Value
|
|
1
|
|
2
|
|
3
|
||||||||||||||||
Cash and equivalents
|
|
$0.4
|
|
|
|
$0.4
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$0.1
|
|
|
|
$0.1
|
|
|
|
$—
|
|
|
|
$—
|
|
Fixed income securities
|
16.7
|
|
|
16.7
|
|
|
—
|
|
|
—
|
|
|
16.6
|
|
|
16.6
|
|
|
—
|
|
|
—
|
|
||||||||
Total OPEB plan assets
|
|
$17.1
|
|
|
|
$17.1
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$16.7
|
|
|
|
$16.7
|
|
|
|
$—
|
|
|
|
$—
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||||||||||||||
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
||||||||||||||||||
401(k) costs
|
|
$25.5
|
|
|
|
$25.1
|
|
|
|
$24.8
|
|
|
|
$13.0
|
|
|
|
$13.0
|
|
|
|
$12.8
|
|
|
|
$11.5
|
|
|
|
$11.2
|
|
|
|
$11.1
|
|
|
82
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||||||||||||||
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
||||||||||||||||||
Compensation expense
|
|
$26.0
|
|
|
|
$17.0
|
|
|
|
$15.1
|
|
|
|
$14.5
|
|
|
|
$9.4
|
|
|
|
$8.3
|
|
|
|
$10.3
|
|
|
|
$6.9
|
|
|
|
$6.4
|
|
Income tax benefits
|
7.3
|
|
|
4.9
|
|
|
6.2
|
|
|
4.2
|
|
|
2.8
|
|
|
3.4
|
|
|
2.8
|
|
|
1.9
|
|
|
2.6
|
|
|
2019
|
|||||
|
Performance Shares - Equity
|
|
Weighted Average
Grant Date Fair Value
|
|||
Nonvested awards, January 1
|
—
|
|
|
|
$—
|
|
Granted
|
91,816
|
|
|
47.23
|
|
|
Forfeited
|
(17,623
|
)
|
|
46.35
|
|
|
Nonvested awards, December 31
|
74,193
|
|
|
47.44
|
|
|
Performance Shares (granted prior to 2019)
|
|
Performance Units (granted prior to 2019)
|
||||||||||||||
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
||||||
Nonvested awards, January 1
|
203,188
|
|
|
223,511
|
|
|
257,599
|
|
|
57,761
|
|
|
71,737
|
|
|
93,320
|
|
Granted
|
—
|
|
|
74,163
|
|
|
65,350
|
|
|
—
|
|
|
19,840
|
|
|
21,558
|
|
Vested
|
(66,322
|
)
|
|
(90,806
|
)
|
|
(99,438
|
)
|
|
(20,131
|
)
|
|
(31,910
|
)
|
|
(37,395
|
)
|
Forfeited
|
(4,994
|
)
|
|
(3,680
|
)
|
|
—
|
|
|
(3,056
|
)
|
|
(1,906
|
)
|
|
(5,746
|
)
|
Nonvested awards, December 31
|
131,872
|
|
|
203,188
|
|
|
223,511
|
|
|
34,574
|
|
|
57,761
|
|
|
71,737
|
|
|
83
|
|
|
Performance Shares
(granted prior to 2019)
|
|
Performance Units (granted prior to 2019)
|
||||||||||||
|
2018 Grant
|
|
2017 Grant
|
|
2018 Grant
|
|
2017 Grant
|
||||||||
Nonvested awards at target
|
68,307
|
|
|
63,565
|
|
|
17,622
|
|
|
16,952
|
|
||||
Estimated payout percentage based on performance criteria
|
118
|
%
|
|
155
|
%
|
|
118
|
%
|
|
155
|
%
|
||||
Fair values of each nonvested award
|
|
$64.57
|
|
|
|
$84.82
|
|
|
|
$64.57
|
|
|
|
$84.82
|
|
|
Performance Shares (granted prior to 2019)
|
|
Performance Units (granted prior to 2019)
|
||||||||
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
|
2016 Grant
|
|
2015 Grant
|
|
2014 Grant
|
|
2016 Grant
|
|
2015 Grant
|
|
2014 Grant
|
Performance awards vested
|
66,322
|
|
90,806
|
|
99,438
|
|
20,131
|
|
31,910
|
|
37,395
|
Percentage of target number of performance awards
|
142.5%
|
|
137.5%
|
|
147.5%
|
|
142.5%
|
|
137.5%
|
|
147.5%
|
Aggregate payout value (in millions)
|
$4.3
|
|
$5.3
|
|
$5.6
|
|
$1.3
|
|
$1.4
|
|
$1.5
|
Payout - cash (in millions)
|
$3.7
|
|
$4.9
|
|
$5.1
|
|
$1.3
|
|
$1.4
|
|
$1.5
|
Payout - common stock shares issued
|
6,447
|
|
5,078
|
|
5,185
|
|
N/A
|
|
N/A
|
|
N/A
|
|
2019
|
|||||
|
Restricted Stock Units - Equity
|
|
Weighted Average
Grant Date Fair Value
|
|||
Nonvested units, January 1
|
—
|
|
|
|
$—
|
|
Granted
|
105,348
|
|
|
45.98
|
|
|
Forfeited
|
(16,067
|
)
|
|
45.63
|
|
|
Nonvested units, December 31
|
89,281
|
|
|
46.04
|
|
|
2019
|
|
2018
|
|
2017
|
|||
Nonvested units, January 1
|
174,163
|
|
|
113,749
|
|
|
57,736
|
|
Granted
|
—
|
|
|
63,568
|
|
|
56,013
|
|
Vested
|
(56,849
|
)
|
|
—
|
|
|
—
|
|
Forfeited
|
(4,281
|
)
|
|
(3,154
|
)
|
|
—
|
|
Nonvested units, December 31
|
113,033
|
|
|
174,163
|
|
|
113,749
|
|
|
84
|
|
|
2019
|
|
2018
|
|
2017
|
|||||||||||||||
|
Units
|
|
Weighted Average
Grant Date Fair Value
|
|
Units
|
|
Weighted Average
Grant Date Fair Value
|
|
Units
|
|
Weighted Average
Grant Date Fair Value
|
|||||||||
Nonvested units, January 1
|
203,188
|
|
|
|
$37.23
|
|
|
132,705
|
|
|
|
$36.50
|
|
|
67,355
|
|
|
|
$33.96
|
|
Granted
|
91,816
|
|
|
46.10
|
|
|
74,163
|
|
|
38.60
|
|
|
65,350
|
|
|
39.12
|
|
|||
Vested
|
(66,322
|
)
|
|
33.93
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|||
Forfeited
|
(22,617
|
)
|
|
44.00
|
|
|
(3,680
|
)
|
|
38.60
|
|
|
—
|
|
|
—
|
|
|||
Nonvested units, December 31
|
206,065
|
|
|
41.50
|
|
|
203,188
|
|
|
37.23
|
|
|
132,705
|
|
|
36.50
|
|
|
2019
|
|
2018
|
||||
Carrying value
|
|
$10.0
|
|
|
|
$9.8
|
|
Fair market value
|
20.9
|
|
|
16.2
|
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||||||
Balance, January 1
|
|
$177.5
|
|
|
|
$184.5
|
|
|
|
$118.3
|
|
|
|
$134.1
|
|
|
|
$59.2
|
|
|
|
$50.4
|
|
Revisions in estimated cash flows
|
(5.5
|
)
|
|
(10.1
|
)
|
|
(6.7
|
)
|
|
(10.1
|
)
|
|
1.2
|
|
|
—
|
|
||||||
Liabilities settled
|
(8.8
|
)
|
|
(10.4
|
)
|
|
(8.4
|
)
|
|
(9.7
|
)
|
|
(0.4
|
)
|
|
(0.7
|
)
|
||||||
Liabilities incurred (a)
|
26.2
|
|
|
7.3
|
|
|
26.2
|
|
|
—
|
|
|
—
|
|
|
7.3
|
|
||||||
Accretion expense
|
6.9
|
|
|
6.2
|
|
|
4.5
|
|
|
4.0
|
|
|
2.4
|
|
|
2.2
|
|
||||||
Balance, December 31
|
|
$196.3
|
|
|
|
$177.5
|
|
|
|
$133.9
|
|
|
|
$118.3
|
|
|
|
$62.4
|
|
|
|
$59.2
|
|
(a)
|
In 2019, Alliant Energy and IPL recognized additional AROs related to IPL’s newly constructed Upland Prairie and English Farms wind sites. The increases in AROs resulted in corresponding increases in property, plant and equipment, net on the respective balance sheets.
|
|
85
|
|
Risk management purpose
|
Type of instrument
|
Mitigate pricing volatility for:
|
|
Fuel used to supply natural gas-fired EGUs
|
Natural gas swap, options and physical forward contracts (IPL and WPL)
|
Natural gas supplied to retail customers
|
Natural gas swap, options and physical forward contracts (IPL and WPL)
|
Fuel used at coal-fired EGUs
|
Coal physical forward contracts (IPL and WPL)
|
Optimize the value of natural gas pipeline capacity
|
Natural gas physical forward contracts (IPL and WPL)
|
|
Natural gas swap contracts (IPL)
|
Manage transmission congestion costs
|
FTRs (IPL and WPL)
|
Manage rail transportation costs
|
Diesel fuel swap contracts (WPL)
|
|
FTRs
|
|
Natural Gas
|
|
Coal
|
|
Diesel Fuel
|
||||||||||||
|
MWhs
|
|
Years
|
|
Dths
|
|
Years
|
|
Tons
|
|
Years
|
|
Gallons
|
|
Years
|
||||
Alliant Energy
|
11,671
|
|
|
2020
|
|
189,287
|
|
|
2020-2026
|
|
6,194
|
|
|
2020-2021
|
|
5,040
|
|
|
2020-2021
|
IPL
|
5,497
|
|
|
2020
|
|
102,758
|
|
|
2020-2026
|
|
2,700
|
|
|
2020-2021
|
|
—
|
|
|
|
WPL
|
6,174
|
|
|
2020
|
|
86,529
|
|
|
2020-2026
|
|
3,494
|
|
|
2020-2021
|
|
5,040
|
|
|
2020-2021
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||||||
Current derivative assets
|
|
$15.8
|
|
|
|
$24.6
|
|
|
|
$12.1
|
|
|
|
$16.1
|
|
|
|
$3.7
|
|
|
|
$8.5
|
|
Non-current derivative assets
|
11.0
|
|
|
3.7
|
|
|
10.2
|
|
|
1.6
|
|
|
0.8
|
|
|
2.1
|
|
||||||
Current derivative liabilities
|
19.0
|
|
|
5.6
|
|
|
8.9
|
|
|
3.1
|
|
|
10.1
|
|
|
2.5
|
|
||||||
Non-current derivative liabilities
|
18.6
|
|
|
17.7
|
|
|
8.5
|
|
|
8.1
|
|
|
10.1
|
|
|
9.6
|
|
|
86
|
|
Alliant Energy
|
2019
|
|
2018
|
||||||||||||||||||||||||||||||||||||
|
|
|
Fair Value
|
|
|
|
Fair Value
|
||||||||||||||||||||||||||||||||
|
Carrying
|
|
Level
|
|
Level
|
|
Level
|
|
|
|
Carrying
|
|
Level
|
|
Level
|
|
Level
|
|
|
||||||||||||||||||||
|
Amount
|
|
1
|
|
2
|
|
3
|
|
Total
|
|
Amount
|
|
1
|
|
2
|
|
3
|
|
Total
|
||||||||||||||||||||
Assets:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||||
Derivatives
|
|
$26.8
|
|
|
|
$—
|
|
|
|
$4.8
|
|
|
|
$22.0
|
|
|
|
$26.8
|
|
|
|
$28.3
|
|
|
|
$—
|
|
|
|
$8.9
|
|
|
|
$19.4
|
|
|
|
$28.3
|
|
Deferred proceeds
|
187.7
|
|
|
—
|
|
|
—
|
|
|
187.7
|
|
|
187.7
|
|
|
119.4
|
|
|
—
|
|
|
—
|
|
|
119.4
|
|
|
119.4
|
|
||||||||||
Liabilities and equity:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||||
Derivatives
|
37.6
|
|
|
—
|
|
|
36.8
|
|
|
0.8
|
|
|
37.6
|
|
|
23.3
|
|
|
—
|
|
|
16.1
|
|
|
7.2
|
|
|
23.3
|
|
||||||||||
Long-term debt (incl. current maturities)
|
6,190.2
|
|
|
—
|
|
|
6,917.9
|
|
|
2.0
|
|
|
6,919.9
|
|
|
5,502.8
|
|
|
—
|
|
|
5,858.4
|
|
|
2.4
|
|
|
5,860.8
|
|
|
87
|
|
IPL
|
2019
|
|
2018
|
||||||||||||||||||||||||||||||||||||
|
|
|
Fair Value
|
|
|
|
Fair Value
|
||||||||||||||||||||||||||||||||
|
Carrying
|
|
Level
|
|
Level
|
|
Level
|
|
|
|
Carrying
|
|
Level
|
|
Level
|
|
Level
|
|
|
||||||||||||||||||||
|
Amount
|
|
1
|
|
2
|
|
3
|
|
Total
|
|
Amount
|
|
1
|
|
2
|
|
3
|
|
Total
|
||||||||||||||||||||
Assets:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||||
Derivatives
|
|
$22.3
|
|
|
|
$—
|
|
|
|
$2.8
|
|
|
|
$19.5
|
|
|
|
$22.3
|
|
|
|
$17.7
|
|
|
|
$—
|
|
|
|
$4.0
|
|
|
|
$13.7
|
|
|
|
$17.7
|
|
Deferred proceeds
|
187.7
|
|
|
—
|
|
|
—
|
|
|
187.7
|
|
|
187.7
|
|
|
119.4
|
|
|
—
|
|
|
—
|
|
|
119.4
|
|
|
119.4
|
|
||||||||||
Liabilities and equity:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||||
Derivatives
|
17.4
|
|
|
—
|
|
|
16.6
|
|
|
0.8
|
|
|
17.4
|
|
|
11.2
|
|
|
—
|
|
|
6.5
|
|
|
4.7
|
|
|
11.2
|
|
||||||||||
Long-term debt (incl. current maturities)
|
3,147.3
|
|
|
—
|
|
|
3,489.1
|
|
|
—
|
|
|
3,489.1
|
|
|
2,552.3
|
|
|
—
|
|
|
2,691.2
|
|
|
—
|
|
|
2,691.2
|
|
WPL
|
2019
|
|
2018
|
||||||||||||||||||||||||||||||||||||
|
|
|
Fair Value
|
|
|
|
Fair Value
|
||||||||||||||||||||||||||||||||
|
Carrying
|
|
Level
|
|
Level
|
|
Level
|
|
|
|
Carrying
|
|
Level
|
|
Level
|
|
Level
|
|
|
||||||||||||||||||||
|
Amount
|
|
1
|
|
2
|
|
3
|
|
Total
|
|
Amount
|
|
1
|
|
2
|
|
3
|
|
Total
|
||||||||||||||||||||
Assets:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||||
Derivatives
|
|
$4.5
|
|
|
|
$—
|
|
|
|
$2.0
|
|
|
|
$2.5
|
|
|
|
$4.5
|
|
|
|
$10.6
|
|
|
|
$—
|
|
|
|
$4.9
|
|
|
|
$5.7
|
|
|
|
$10.6
|
|
Liabilities and equity:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||||||||||||||
Derivatives
|
20.2
|
|
|
—
|
|
|
20.2
|
|
|
—
|
|
|
20.2
|
|
|
12.1
|
|
|
—
|
|
|
9.6
|
|
|
2.5
|
|
|
12.1
|
|
||||||||||
Long-term debt (incl. current maturities)
|
1,932.7
|
|
|
—
|
|
|
2,268.2
|
|
|
—
|
|
|
2,268.2
|
|
|
1,834.9
|
|
|
—
|
|
|
2,043.7
|
|
|
—
|
|
|
2,043.7
|
|
Alliant Energy
|
Commodity Contract Derivative
|
|
|
||||||||||||
|
Assets and (Liabilities), net
|
|
Deferred Proceeds
|
||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||
Beginning balance, January 1
|
|
$12.2
|
|
|
|
($12.2
|
)
|
|
|
$119.4
|
|
|
|
$222.1
|
|
Total net gains included in changes in net assets (realized/unrealized)
|
8.2
|
|
|
9.1
|
|
|
—
|
|
|
—
|
|
||||
Transfers out of Level 3 (a)
|
4.0
|
|
|
16.1
|
|
|
—
|
|
|
—
|
|
||||
Purchases
|
13.8
|
|
|
26.7
|
|
|
—
|
|
|
—
|
|
||||
Sales
|
(0.2
|
)
|
|
(0.5
|
)
|
|
—
|
|
|
—
|
|
||||
Settlements (b)
|
(16.8
|
)
|
|
(27.0
|
)
|
|
68.3
|
|
|
(102.7
|
)
|
||||
Ending balance, December 31
|
|
$21.2
|
|
|
|
$12.2
|
|
|
|
$187.7
|
|
|
|
$119.4
|
|
The amount of total net gains for the period included in changes in net assets attributable to the change in unrealized gains relating to assets and liabilities held at December 31
|
|
$11.4
|
|
|
|
$10.7
|
|
|
|
$—
|
|
|
|
$—
|
|
IPL
|
Commodity Contract Derivative
|
|
|
||||||||||||
|
Assets and (Liabilities), net
|
|
Deferred Proceeds
|
||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||
Beginning balance, January 1
|
|
$9.0
|
|
|
|
($1.4
|
)
|
|
|
$119.4
|
|
|
|
$222.1
|
|
Total net gains (losses) included in changes in net assets (realized/unrealized)
|
10.7
|
|
|
(0.5
|
)
|
|
—
|
|
|
—
|
|
||||
Transfers out of Level 3 (a)
|
2.6
|
|
|
11.0
|
|
|
—
|
|
|
—
|
|
||||
Purchases
|
9.5
|
|
|
22.5
|
|
|
—
|
|
|
—
|
|
||||
Sales
|
(0.1
|
)
|
|
(0.4
|
)
|
|
—
|
|
|
—
|
|
||||
Settlements (b)
|
(13.0
|
)
|
|
(22.2
|
)
|
|
68.3
|
|
|
(102.7
|
)
|
||||
Ending balance, December 31
|
|
$18.7
|
|
|
|
$9.0
|
|
|
|
$187.7
|
|
|
|
$119.4
|
|
The amount of total net gains for the period included in changes in net assets attributable to the change in unrealized gains relating to assets and liabilities held at December 31
|
|
$12.6
|
|
|
|
$0.2
|
|
|
|
$—
|
|
|
|
$—
|
|
|
88
|
|
WPL
|
Commodity Contract Derivative
|
||||||
|
Assets and (Liabilities), net
|
||||||
|
2019
|
|
2018
|
||||
Beginning balance, January 1
|
|
$3.2
|
|
|
|
($10.8
|
)
|
Total net gains (losses) included in changes in net assets (realized/unrealized)
|
(2.5
|
)
|
|
9.6
|
|
||
Transfers out of Level 3 (a)
|
1.4
|
|
|
5.1
|
|
||
Purchases
|
4.3
|
|
|
4.2
|
|
||
Sales
|
(0.1
|
)
|
|
(0.1
|
)
|
||
Settlements
|
(3.8
|
)
|
|
(4.8
|
)
|
||
Ending balance, December 31
|
|
$2.5
|
|
|
|
$3.2
|
|
The amount of total net gains (losses) for the period included in changes in net assets attributable to the change in unrealized gains (losses) relating to assets and liabilities held at December 31
|
|
($1.2
|
)
|
|
|
$10.5
|
|
(a)
|
Observable market inputs became available for certain commodity contracts previously classified as Level 3 for transfers out of Level 3.
|
(b)
|
Settlements related to deferred proceeds are due to the change in the carrying amount of receivables sold less the allowance for doubtful accounts associated with the receivables sold and cash amounts received from the receivables sold.
|
|
Alliant Energy
|
|
IPL
|
|
WPL
|
||||||||||||||||||
|
Excluding FTRs
|
|
FTRs
|
|
Excluding FTRs
|
|
FTRs
|
|
Excluding FTRs
|
|
FTRs
|
||||||||||||
2019
|
|
$14.6
|
|
|
|
$6.6
|
|
|
|
$13.6
|
|
|
|
$5.1
|
|
|
|
$1.0
|
|
|
|
$1.5
|
|
2018
|
3.2
|
|
|
9.0
|
|
|
1.8
|
|
|
7.2
|
|
|
1.4
|
|
|
1.8
|
|
Alliant Energy
|
2020
|
|
2021
|
|
2022
|
|
2023
|
|
2024
|
|
Thereafter
|
|
Total
|
||||||||||||||
Purchased power (a)
|
|
$111
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$111
|
|
Natural gas
|
257
|
|
|
183
|
|
|
139
|
|
|
109
|
|
|
77
|
|
|
187
|
|
|
952
|
|
|||||||
Coal (b)
|
75
|
|
|
27
|
|
|
10
|
|
|
10
|
|
|
—
|
|
|
—
|
|
|
122
|
|
|||||||
Other (c)
|
56
|
|
|
13
|
|
|
11
|
|
|
9
|
|
|
7
|
|
|
12
|
|
|
108
|
|
|||||||
|
|
$499
|
|
|
|
$223
|
|
|
|
$160
|
|
|
|
$128
|
|
|
|
$84
|
|
|
|
$199
|
|
|
|
$1,293
|
|
IPL
|
2020
|
|
2021
|
|
2022
|
|
2023
|
|
2024
|
|
Thereafter
|
|
Total
|
||||||||||||||
Purchased power (a)
|
|
$110
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$110
|
|
Natural gas
|
135
|
|
|
101
|
|
|
77
|
|
|
67
|
|
|
55
|
|
|
89
|
|
|
524
|
|
|||||||
Coal (b)
|
46
|
|
|
21
|
|
|
10
|
|
|
10
|
|
|
—
|
|
|
—
|
|
|
87
|
|
|||||||
Other (c)
|
24
|
|
|
4
|
|
|
4
|
|
|
3
|
|
|
1
|
|
|
10
|
|
|
46
|
|
|||||||
|
|
$315
|
|
|
|
$126
|
|
|
|
$91
|
|
|
|
$80
|
|
|
|
$56
|
|
|
|
$99
|
|
|
|
$767
|
|
WPL
|
2020
|
|
2021
|
|
2022
|
|
2023
|
|
2024
|
|
Thereafter
|
|
Total
|
||||||||||||||
Purchased power
|
|
$1
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$—
|
|
|
|
$1
|
|
Natural gas
|
122
|
|
|
82
|
|
|
62
|
|
|
42
|
|
|
22
|
|
|
98
|
|
|
428
|
|
|||||||
Coal (b)
|
29
|
|
|
6
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
—
|
|
|
35
|
|
|||||||
Other (c)
|
24
|
|
|
1
|
|
|
1
|
|
|
1
|
|
|
1
|
|
|
1
|
|
|
29
|
|
|||||||
|
|
$176
|
|
|
|
$89
|
|
|
|
$63
|
|
|
|
$43
|
|
|
|
$23
|
|
|
|
$99
|
|
|
|
$493
|
|
|
89
|
|
(a)
|
Includes payments required by PPAs for capacity rights and minimum quantities of MWhs required to be purchased. As a result of an amendment to shorten the term of the DAEC PPA, Alliant Energy’s and IPL’s amounts include minimum future commitments related to IPL’s purchase of capacity and the resulting energy from DAEC through September 2020, and do not include the September 2020 buyout payment of $110 million.
|
(b)
|
Corporate Services has historically entered into system-wide coal contracts on behalf of IPL and WPL that include minimum future commitments. Such commitments were assigned to IPL and WPL based on information available as of December 31, 2019 regarding expected future usage, which is subject to change.
|
(c)
|
Includes individual commitments incurred during the normal course of business that exceeded $1 million at December 31, 2019.
|
|
90
|
|
|
Alliant Energy
|
|
IPL
|
||||||||
Range of estimated future costs
|
|
$14
|
|
-
|
$30
|
|
|
$12
|
|
-
|
$25
|
Current and non-current environmental liabilities
|
18
|
|
15
|
|
91
|
|
•
|
Utility - includes the operations of IPL and WPL, which primarily serve retail customers in Iowa and Wisconsin. The utility business has three reportable segments: a) utility electric operations; b) utility gas operations; and c) utility other, which includes steam operations and the unallocated portions of the utility business. Various line items in the following tables are not allocated to the electric and gas segments for management reporting purposes, and therefore, are included only in “Total Utility.”
|
•
|
ATC Holdings, Non-utility, Parent and Other - includes the operations of AEF and its subsidiaries, Corporate Services, the Alliant Energy parent company, and any Alliant Energy parent company consolidating adjustments. AEF is comprised of Alliant Energy’s interest in ATC Holdings, Transportation, a non-utility wind farm, the Sheboygan Falls Energy Facility and other non-utility holdings.
|
|
|
|
|
|
|
|
|
|
ATC Holdings,
|
|
|
||||||||||||
|
Utility
|
|
Non-utility,
|
|
Alliant Energy
|
||||||||||||||||||
2019
|
Electric
|
|
Gas
|
|
Other
|
|
Total
|
|
Parent and Other
|
|
Consolidated
|
||||||||||||
Revenues
|
|
$3,063.6
|
|
|
|
$455.2
|
|
|
|
$46.5
|
|
|
|
$3,565.3
|
|
|
|
$82.4
|
|
|
|
$3,647.7
|
|
Depreciation and amortization
|
512.7
|
|
|
46.4
|
|
|
3.2
|
|
|
562.3
|
|
|
4.9
|
|
|
567.2
|
|
||||||
Operating income
|
678.9
|
|
|
69.8
|
|
|
1.3
|
|
|
750.0
|
|
|
27.7
|
|
|
777.7
|
|
||||||
Interest expense
|
|
|
|
|
|
|
229.1
|
|
|
43.8
|
|
|
272.9
|
|
|||||||||
Equity income from unconsolidated investments, net
|
(1.4
|
)
|
|
—
|
|
|
—
|
|
|
(1.4
|
)
|
|
(51.6
|
)
|
|
(53.0
|
)
|
||||||
Income tax expense (benefit)
|
|
|
|
|
|
|
73.4
|
|
|
(4.7
|
)
|
|
68.7
|
|
|||||||||
Net income attributable to Alliant Energy common shareowners
|
|
|
|
|
|
|
517.1
|
|
|
40.1
|
|
|
557.2
|
|
|||||||||
Total assets
|
13,659.0
|
|
|
1,268.5
|
|
|
856.5
|
|
|
15,784.0
|
|
|
916.7
|
|
|
16,700.7
|
|
||||||
Investments in equity method subsidiaries
|
9.5
|
|
|
—
|
|
|
—
|
|
|
9.5
|
|
|
448.8
|
|
|
458.3
|
|
||||||
Construction and acquisition expenditures
|
1,438.4
|
|
|
99.7
|
|
|
0.3
|
|
|
1,538.4
|
|
|
101.7
|
|
|
1,640.1
|
|
|
|
|
|
|
|
|
|
|
ATC Holdings,
|
|
|
||||||||||||
|
Utility
|
|
Non-utility,
|
|
Alliant Energy
|
||||||||||||||||||
2018
|
Electric
|
|
Gas
|
|
Other
|
|
Total
|
|
Parent and Other
|
|
Consolidated
|
||||||||||||
Revenues
|
|
$3,000.3
|
|
|
|
$446.6
|
|
|
|
$48.0
|
|
|
|
$3,494.9
|
|
|
|
$39.6
|
|
|
|
$3,534.5
|
|
Depreciation and amortization
|
457.3
|
|
|
42.0
|
|
|
3.6
|
|
|
502.9
|
|
|
4.0
|
|
|
506.9
|
|
||||||
Operating income
|
610.2
|
|
|
53.2
|
|
|
0.3
|
|
|
663.7
|
|
|
30.7
|
|
|
694.4
|
|
||||||
Interest expense
|
|
|
|
|
|
|
217.2
|
|
|
29.8
|
|
|
247.0
|
|
|||||||||
Equity income from unconsolidated investments, net
|
(0.9
|
)
|
|
—
|
|
|
—
|
|
|
(0.9
|
)
|
|
(53.7
|
)
|
|
(54.6
|
)
|
||||||
Income taxes
|
|
|
|
|
|
|
33.0
|
|
|
14.7
|
|
|
47.7
|
|
|||||||||
Net income attributable to Alliant Energy common shareowners
|
|
|
|
|
|
|
472.1
|
|
|
40.0
|
|
|
512.1
|
|
|||||||||
Total assets
|
12,486.3
|
|
|
1,184.4
|
|
|
893.2
|
|
|
14,563.9
|
|
|
862.1
|
|
|
15,426.0
|
|
||||||
Investments in equity method subsidiaries
|
8.1
|
|
|
—
|
|
|
—
|
|
|
8.1
|
|
|
413.2
|
|
|
421.3
|
|
||||||
Construction and acquisition expenditures
|
1,421.1
|
|
|
146.8
|
|
|
0.4
|
|
|
1,568.3
|
|
|
65.6
|
|
|
1,633.9
|
|
|
92
|
|
|
|
|
|
|
|
|
|
|
ATC Holdings,
|
|
|
||||||||||||
|
Utility
|
|
Non-utility,
|
|
Alliant Energy
|
||||||||||||||||||
2017
|
Electric
|
|
Gas
|
|
Other
|
|
Total
|
|
Parent and Other
|
|
Consolidated
|
||||||||||||
Revenues
|
|
$2,894.7
|
|
|
|
$400.9
|
|
|
|
$47.5
|
|
|
|
$3,343.1
|
|
|
|
$39.1
|
|
|
|
$3,382.2
|
|
Depreciation and amortization
|
412.0
|
|
|
38.2
|
|
|
7.7
|
|
|
457.9
|
|
|
3.9
|
|
|
461.8
|
|
||||||
Operating income (loss)
|
601.7
|
|
|
47.7
|
|
|
(11.6
|
)
|
|
637.8
|
|
|
33.4
|
|
|
671.2
|
|
||||||
Interest expense
|
|
|
|
|
|
|
206.2
|
|
|
9.4
|
|
|
215.6
|
|
|||||||||
Equity income from unconsolidated investments, net
|
(0.7
|
)
|
|
—
|
|
|
—
|
|
|
(0.7
|
)
|
|
(44.1
|
)
|
|
(44.8
|
)
|
||||||
Income taxes
|
|
|
|
|
|
|
51.0
|
|
|
15.7
|
|
|
66.7
|
|
|||||||||
Net income attributable to Alliant Energy common shareowners
|
|
|
|
|
|
|
403.4
|
|
|
53.9
|
|
|
457.3
|
|
|||||||||
Total assets
|
11,396.2
|
|
|
1,199.8
|
|
|
766.5
|
|
|
13,362.5
|
|
|
825.3
|
|
|
14,187.8
|
|
||||||
Investments in equity method subsidiaries
|
8.3
|
|
|
—
|
|
|
—
|
|
|
8.3
|
|
|
373.1
|
|
|
381.4
|
|
||||||
Construction and acquisition expenditures
|
1,154.9
|
|
|
125.2
|
|
|
1.7
|
|
|
1,281.8
|
|
|
185.1
|
|
|
1,466.9
|
|
2019
|
Electric
|
|
Gas
|
|
Other
|
|
Total
|
||||||||
Revenues
|
|
$1,781.2
|
|
|
|
$264.2
|
|
|
|
$44.2
|
|
|
|
$2,089.6
|
|
Depreciation and amortization
|
294.9
|
|
|
28.6
|
|
|
3.2
|
|
|
326.7
|
|
||||
Operating income
|
359.7
|
|
|
38.9
|
|
|
4.2
|
|
|
402.8
|
|
||||
Interest expense
|
|
|
|
|
|
|
126.9
|
|
|||||||
Income taxes
|
|
|
|
|
|
|
24.1
|
|
|||||||
Net income available for common stock
|
|
|
|
|
|
|
284.1
|
|
|||||||
Total assets
|
8,074.6
|
|
|
733.8
|
|
|
469.1
|
|
|
9,277.5
|
|
||||
Construction and acquisition expenditures
|
963.4
|
|
|
55.9
|
|
|
0.3
|
|
|
1,019.6
|
|
2018
|
Electric
|
|
Gas
|
|
Other
|
|
Total
|
||||||||
Revenues
|
|
$1,731.1
|
|
|
|
$266.2
|
|
|
|
$45.0
|
|
|
|
$2,042.3
|
|
Depreciation and amortization
|
254.7
|
|
|
25.2
|
|
|
3.6
|
|
|
283.5
|
|
||||
Operating income
|
318.2
|
|
|
28.3
|
|
|
4.3
|
|
|
350.8
|
|
||||
Interest expense
|
|
|
|
|
|
|
119.4
|
|
|||||||
Income tax benefit
|
|
|
|
|
|
|
(3.2
|
)
|
|||||||
Net income available for common stock
|
|
|
|
|
|
|
264.0
|
|
|||||||
Total assets
|
7,219.9
|
|
|
687.5
|
|
|
504.0
|
|
|
8,411.4
|
|
||||
Construction and acquisition expenditures
|
890.6
|
|
|
99.7
|
|
|
0.4
|
|
|
990.7
|
|
2017
|
Electric
|
|
Gas
|
|
Other
|
|
Total
|
||||||||
Revenues
|
|
$1,598.9
|
|
|
|
$226.0
|
|
|
|
$45.4
|
|
|
|
$1,870.3
|
|
Depreciation and amortization
|
215.1
|
|
|
22.2
|
|
|
7.7
|
|
|
245.0
|
|
||||
Operating income (loss)
|
287.3
|
|
|
21.7
|
|
|
(4.9
|
)
|
|
304.1
|
|
||||
Interest expense
|
|
|
|
|
|
|
112.4
|
|
|||||||
Income tax benefit
|
|
|
|
|
|
|
(10.9
|
)
|
|||||||
Net income available for common stock
|
|
|
|
|
|
|
216.8
|
|
|||||||
Total assets
|
6,524.4
|
|
|
727.9
|
|
|
353.7
|
|
|
7,606.0
|
|
||||
Construction and acquisition expenditures
|
594.1
|
|
|
80.7
|
|
|
1.2
|
|
|
676.0
|
|
|
93
|
|
2019
|
Electric
|
|
Gas
|
|
Other
|
|
Total
|
||||||||
Revenues
|
|
$1,282.4
|
|
|
|
$191.0
|
|
|
|
$2.3
|
|
|
|
$1,475.7
|
|
Depreciation and amortization
|
217.8
|
|
|
17.8
|
|
|
—
|
|
|
235.6
|
|
||||
Operating income (loss)
|
319.2
|
|
|
30.9
|
|
|
(2.9
|
)
|
|
347.2
|
|
||||
Interest expense
|
|
|
|
|
|
|
102.2
|
|
|||||||
Income taxes
|
|
|
|
|
|
|
49.3
|
|
|||||||
Net income
|
|
|
|
|
|
|
233.0
|
|
|||||||
Total assets
|
5,584.4
|
|
|
534.7
|
|
|
387.4
|
|
|
6,506.5
|
|
||||
Construction and acquisition expenditures
|
475.0
|
|
|
43.8
|
|
|
—
|
|
|
518.8
|
|
2018
|
Electric
|
|
Gas
|
|
Other
|
|
Total
|
||||||||
Revenues
|
|
$1,269.2
|
|
|
|
$180.4
|
|
|
|
$3.0
|
|
|
|
$1,452.6
|
|
Depreciation and amortization
|
202.6
|
|
|
16.8
|
|
|
—
|
|
|
219.4
|
|
||||
Operating income (loss)
|
292.0
|
|
|
24.9
|
|
|
(4.0
|
)
|
|
312.9
|
|
||||
Interest expense
|
|
|
|
|
|
|
97.8
|
|
|||||||
Income taxes
|
|
|
|
|
|
|
36.2
|
|
|||||||
Net income
|
|
|
|
|
|
|
208.1
|
|
|||||||
Total assets
|
5,266.4
|
|
|
496.9
|
|
|
389.2
|
|
|
6,152.5
|
|
||||
Construction and acquisition expenditures
|
530.5
|
|
|
47.1
|
|
|
—
|
|
|
577.6
|
|
2017
|
Electric
|
|
Gas
|
|
Other
|
|
Total
|
||||||||
Revenues
|
|
$1,295.8
|
|
|
|
$174.9
|
|
|
|
$2.1
|
|
|
|
$1,472.8
|
|
Depreciation and amortization
|
196.9
|
|
|
16.0
|
|
|
—
|
|
|
212.9
|
|
||||
Operating income (loss)
|
314.4
|
|
|
26.0
|
|
|
(6.7
|
)
|
|
333.7
|
|
||||
Interest expense
|
|
|
|
|
|
|
93.8
|
|
|||||||
Income taxes
|
|
|
|
|
|
|
61.9
|
|
|||||||
Net income
|
|
|
|
|
|
|
186.6
|
|
|||||||
Total assets
|
4,871.8
|
|
|
471.9
|
|
|
412.8
|
|
|
5,756.5
|
|
||||
Construction and acquisition expenditures
|
592.4
|
|
|
44.5
|
|
|
0.5
|
|
|
637.4
|
|
|
IPL
|
|
WPL
|
||||||||||||||||||||
|
2019
|
|
2018
|
|
2017
|
|
2019
|
|
2018
|
|
2017
|
||||||||||||
Corporate Services billings
|
|
$185
|
|
|
|
$170
|
|
|
|
$177
|
|
|
|
$142
|
|
|
|
$132
|
|
|
|
$135
|
|
Sales credited
|
68
|
|
|
48
|
|
23
|
|
7
|
|
|
28
|
|
13
|
||||||||||
Purchases billed
|
331
|
|
|
358
|
|
364
|
|
120
|
|
|
81
|
|
115
|
|
2019
|
|
2018
|
||||
IPL
|
|
$112
|
|
|
|
$95
|
|
WPL
|
85
|
|
|
71
|
|
|
2019
|
|
2018
|
|
2017
|
||||||
ATC billings to WPL
|
|
$109
|
|
|
|
$106
|
|
|
|
$105
|
|
WPL billings to ATC
|
13
|
|
|
11
|
|
|
10
|
|
|
94
|
|
|
2019
|
|
2018
|
||||||||||||||||||||||||||||
|
March 31
|
|
June 30
|
|
Sep. 30
|
|
Dec. 31
|
|
March 31
|
|
June 30
|
|
Sep. 30
|
|
Dec. 31
|
||||||||||||||||
|
(in millions, except per share data)
|
||||||||||||||||||||||||||||||
Revenues
|
|
$987.2
|
|
|
|
$790.2
|
|
|
|
$990.2
|
|
|
|
$880.1
|
|
|
|
$916.3
|
|
|
|
$816.1
|
|
|
|
$928.6
|
|
|
|
$873.5
|
|
Operating income
|
176.8
|
|
|
149.8
|
|
|
290.2
|
|
|
160.9
|
|
|
165.7
|
|
|
151.2
|
|
|
256.1
|
|
|
121.4
|
|
||||||||
Net income attributable to Alliant Energy common shareowners
|
125.1
|
|
|
94.6
|
|
|
226.0
|
|
|
111.5
|
|
|
120.9
|
|
|
100.4
|
|
|
205.5
|
|
|
85.3
|
|
||||||||
Earnings per weighted average common share attributable to Alliant Energy common shareowners
|
0.53
|
|
|
0.40
|
|
|
0.94
|
|
|
0.46
|
|
|
0.52
|
|
|
0.43
|
|
|
0.87
|
|
|
0.36
|
|
|
2019
|
|
2018
|
||||||||||||||||||||||||||||
|
March 31
|
|
June 30
|
|
Sep. 30
|
|
Dec. 31
|
|
March 31
|
|
June 30
|
|
Sep. 30
|
|
Dec. 31
|
||||||||||||||||
|
(in millions)
|
||||||||||||||||||||||||||||||
Revenues
|
|
$555.1
|
|
|
|
$441.2
|
|
|
|
$596.5
|
|
|
|
$496.8
|
|
|
|
$525.8
|
|
|
|
$474.8
|
|
|
|
$547.6
|
|
|
|
$494.1
|
|
Operating income
|
73.5
|
|
|
74.5
|
|
|
173.5
|
|
|
81.3
|
|
|
75.6
|
|
|
77.7
|
|
|
143.1
|
|
|
54.4
|
|
||||||||
Net income
|
55.9
|
|
|
47.5
|
|
|
143.7
|
|
|
47.2
|
|
|
49.3
|
|
|
54.2
|
|
|
129.1
|
|
|
41.6
|
|
||||||||
Net income available for common stock
|
53.3
|
|
|
45.0
|
|
|
141.1
|
|
|
44.7
|
|
|
46.7
|
|
|
51.7
|
|
|
126.5
|
|
|
39.1
|
|
|
2019
|
|
2018
|
||||||||||||||||||||||||||||
|
March 31
|
|
June 30
|
|
Sep. 30
|
|
Dec. 31
|
|
March 31
|
|
June 30
|
|
Sep. 30
|
|
Dec. 31
|
||||||||||||||||
|
(in millions)
|
||||||||||||||||||||||||||||||
Revenues
|
|
$415.2
|
|
|
|
$326.1
|
|
|
|
$372.1
|
|
|
|
$362.3
|
|
|
|
$381.7
|
|
|
|
$330.8
|
|
|
|
$370.7
|
|
|
|
$369.4
|
|
Operating income
|
98.1
|
|
|
67.0
|
|
|
108.3
|
|
|
73.8
|
|
|
84.0
|
|
|
63.4
|
|
|
104.2
|
|
|
61.3
|
|
||||||||
Net income
|
65.7
|
|
|
42.0
|
|
|
75.5
|
|
|
49.8
|
|
|
54.0
|
|
|
39.8
|
|
|
76.3
|
|
|
38.0
|
|
|
95
|
|
|
96
|
|
|
97
|
|
|
|
(A)
|
|
|
|
(C)
|
|
|
Number of securities to be
|
|
(B)
|
|
Number of securities remaining available
|
|
|
issued upon exercise of
|
|
Weighted-average exercise
|
|
for future issuance under equity
|
|
|
outstanding options,
|
|
price of outstanding options,
|
|
compensation plans (excluding
|
Plan Category
|
|
warrants and rights
|
|
warrants and rights
|
|
securities reflected in column (A))
|
Equity compensation plans approved by shareowners
|
|
997,970 (a)
|
|
$41.80
|
|
6,407,528 (b)
|
Equity compensation plans not approved by shareowners (c)
|
|
N/A
|
|
N/A
|
|
N/A (d)
|
|
|
997,970
|
|
$41.80
|
|
6,407,528
|
(a)
|
Represents performance shares, performance restricted stock units and restricted stock units granted under the Amended and Restated OIP. Performance shares for the 2018 and 2017 grants may be paid out in shares of Alliant Energy’s common stock, cash, or a combination of cash and stock. Performance restricted stock units, and performance shares for the 2019 grants, are paid out in shares of Alliant Energy’s common stock. The performance share and performance restricted stock unit awards are adjusted by a performance multiplier, which ranges from zero to 200%, based on the performance criteria. The performance share and performance restricted stock unit awards included in column (A) of the table reflect an assumed payout in the form of Alliant Energy’s common stock at the maximum performance multiplier of 200% for the 2019 and 2018 grants, and at the estimated payout percentages for the 2017 grants. Also included are restricted stock units granted under the Amended and Restated OIP. Restricted stock units for the 2018 and 2017 grants may be paid out in shares of Alliant Energy’s common stock, cash, or a combination of cash and stock at the expiration of a three-year time-vesting period. Restricted stock units for the 2019 grants are paid out in shares of Alliant Energy’s common stock at the expiration of a three-year time-vesting period.
|
(b)
|
All of the available shares under the Amended and Restated OIP may be issued as awards in the form of shares of Alliant Energy’s common stock, restricted stock, restricted stock units, performance shares, performance units and other stock-based or cash-based awards. As of December 31, 2019, there were performance shares and restricted stock units (performance- and time-vesting) outstanding under the Amended and Restated OIP.
|
(c)
|
As of December 31, 2019, there were 381,232 shares of Alliant Energy’s common stock held under the DCP, which is described in Note 13(c).
|
|
98
|
|
(d)
|
There is no limit on the number of shares of Alliant Energy’s common stock that may be held under the DCP.
|
|
IPL
|
|
WPL
|
||||||||||||||||||||||||
|
2019
|
|
2018
|
|
2019
|
|
2018
|
||||||||||||||||||||
|
Fees
|
|
% of Total
|
|
Fees
|
|
% of Total
|
|
Fees
|
|
% of Total
|
|
Fees
|
|
% of Total
|
||||||||||||
Audit fees
|
|
$1,584
|
|
|
89
|
%
|
|
|
$1,483
|
|
|
91
|
%
|
|
|
$1,116
|
|
|
92
|
%
|
|
|
$1,102
|
|
|
94
|
%
|
Audit-related fees
|
134
|
|
|
8
|
%
|
|
111
|
|
|
7
|
%
|
|
37
|
|
|
3
|
%
|
|
37
|
|
|
3
|
%
|
||||
Tax fees
|
52
|
|
|
3
|
%
|
|
31
|
|
|
2
|
%
|
|
56
|
|
|
5
|
%
|
|
24
|
|
|
2
|
%
|
||||
All other fees
|
2
|
|
|
—
|
%
|
|
10
|
|
|
—
|
%
|
|
1
|
|
|
—
|
%
|
|
8
|
|
|
1
|
%
|
||||
|
|
$1,772
|
|
|
100
|
%
|
|
|
$1,635
|
|
|
100
|
%
|
|
|
$1,210
|
|
|
100
|
%
|
|
|
$1,171
|
|
|
100
|
%
|
|
99
|
|
(1)
|
(2)
|
Financial Statement Schedules -
|
ALLIANT ENERGY CORPORATION (Parent Company Only)
|
Year Ended December 31,
|
||||||||||
CONDENSED STATEMENTS OF INCOME
|
2019
|
|
2018
|
|
2017
|
||||||
|
(in millions)
|
||||||||||
Operating expenses
|
|
$2
|
|
|
|
$5
|
|
|
|
$2
|
|
Operating loss
|
(2
|
)
|
|
(5
|
)
|
|
(2
|
)
|
|||
Other (income) and deductions:
|
|
|
|
|
|
||||||
Equity earnings from consolidated subsidiaries
|
(562
|
)
|
|
(523
|
)
|
|
(457
|
)
|
|||
Interest expense
|
9
|
|
|
4
|
|
|
3
|
|
|||
Other
|
7
|
|
|
2
|
|
|
—
|
|
|||
Total other (income) and deductions
|
(546
|
)
|
|
(517
|
)
|
|
(454
|
)
|
|||
Income before income taxes
|
544
|
|
|
512
|
|
|
452
|
|
|||
Income tax benefit
|
(15
|
)
|
|
(1
|
)
|
|
(6
|
)
|
|||
Net income
|
|
$559
|
|
|
|
$513
|
|
|
|
$458
|
|
LIABILITIES AND EQUITY
|
|
|
|
||||
Current liabilities:
|
|
|
|
||||
Commercial paper
|
|
$169
|
|
|
|
$285
|
|
Notes payable to affiliated companies
|
731
|
|
|
719
|
|
||
Other
|
19
|
|
|
21
|
|
||
Total current liabilities
|
919
|
|
|
1,025
|
|
||
Other liabilities
|
15
|
|
|
17
|
|
||
Common equity:
|
|
|
|
||||
Common stock and additional paid-in capital
|
2,448
|
|
|
2,048
|
|
||
Retained earnings
|
2,766
|
|
|
2,545
|
|
||
Accumulated other comprehensive income
|
2
|
|
|
2
|
|
||
Shares in deferred compensation trust
|
(10
|
)
|
|
(10
|
)
|
||
Total common equity
|
5,206
|
|
|
4,585
|
|
||
Total liabilities and equity
|
|
$6,140
|
|
|
|
$5,627
|
|
|
100
|
|
ALLIANT ENERGY CORPORATION (Parent Company Only)
|
Year Ended December 31,
|
||||||||||
CONDENSED STATEMENTS OF CASH FLOWS
|
2019
|
|
2018
|
|
2017
|
||||||
|
(in millions)
|
||||||||||
Net cash flows from operating activities
|
|
$305
|
|
|
|
$311
|
|
|
|
$273
|
|
Cash flows used for investing activities:
|
|
|
|
|
|
|
|
|
|||
Capital contributions to consolidated subsidiaries
|
(250
|
)
|
|
(625
|
)
|
|
(290
|
)
|
|||
Net change in notes receivable from and payable to affiliates
|
8
|
|
|
441
|
|
|
54
|
|
|||
Net cash flows used for investing activities
|
(242
|
)
|
|
(184
|
)
|
|
(236
|
)
|
|||
Cash flows used for financing activities:
|
|
|
|
|
|
|
|
|
|||
Common stock dividends
|
(338
|
)
|
|
(312
|
)
|
|
(288
|
)
|
|||
Proceeds from issuance of common stock, net
|
390
|
|
|
197
|
|
|
150
|
|
|||
Net change in commercial paper
|
(116
|
)
|
|
(10
|
)
|
|
103
|
|
|||
Other
|
1
|
|
|
(2
|
)
|
|
(2
|
)
|
|||
Net cash flows used for financing activities
|
(63
|
)
|
|
(127
|
)
|
|
(37
|
)
|
|||
Net increase (decrease) in cash, cash equivalents and restricted cash
|
—
|
|
|
—
|
|
|
—
|
|
|||
Cash, cash equivalents and restricted cash at beginning of period
|
—
|
|
|
—
|
|
|
—
|
|
|||
Cash, cash equivalents and restricted cash at end of period
|
|
$—
|
|
|
|
$—
|
|
|
|
$—
|
|
Supplemental cash flows information:
|
|
|
|
|
|
|
|
|
|||
Cash (paid) refunded during the period for:
|
|
|
|
|
|
|
|
|
|||
Interest
|
|
($9
|
)
|
|
|
($4
|
)
|
|
|
($3
|
)
|
Income taxes, net
|
14
|
|
|
5
|
|
|
—
|
|
|
101
|
|
|
|
|
|
Additions
|
|
|
|
|
Balance,
|
Charged to
|
Charged to Other
|
|
Balance,
|
||
Description
|
January 1
|
Expense
|
Accounts (a)
|
Deductions (b)
|
December 31
|
||
|
(in millions)
|
|
Accumulated Provision for Uncollectible Accounts:
|
|
|
|
|
|||||||||||||
|
|
Alliant Energy (c)
|
|
|
|
|
|
|||||||||||
|
|
|
Year ended December 31, 2019
|
|
$10.5
|
|
|
$17.3
|
|
|
$2.4
|
|
|
$22.9
|
|
|
$7.3
|
|
|
|
|
Year ended December 31, 2018
|
12.0
|
|
21.2
|
|
1.0
|
|
23.7
|
|
10.5
|
|
|||||
|
|
|
Year ended December 31, 2017
|
8.7
|
|
15.1
|
|
5.4
|
|
17.2
|
|
12.0
|
|
|||||
|
|
IPL (c)
|
|
|
|
|
||||||||||||
|
|
|
Year ended December 31, 2019
|
|
$3.1
|
|
|
$16.5
|
|
|
$—
|
|
|
$18.4
|
|
|
$1.2
|
|
|
|
|
Year ended December 31, 2018
|
1.3
|
|
20.9
|
|
—
|
|
19.1
|
|
3.1
|
|
|||||
|
|
|
Year ended December 31, 2017
|
1.1
|
|
14.9
|
|
—
|
|
14.7
|
|
1.3
|
|
|||||
|
|
WPL
|
|
|
|
|
||||||||||||
|
|
|
Year ended December 31, 2019
|
|
$7.4
|
|
|
$0.8
|
|
|
$2.4
|
|
|
$4.5
|
|
|
$6.1
|
|
|
|
|
Year ended December 31, 2018
|
10.7
|
|
0.3
|
|
1.0
|
|
4.6
|
|
7.4
|
|
|||||
|
|
|
Year ended December 31, 2017
|
7.1
|
|
0.2
|
|
5.4
|
|
2.0
|
|
10.7
|
|
(a)
|
Accumulated provision for uncollectible accounts: In accordance with its regulatory treatment, certain amounts provided by WPL are recorded in regulatory assets. WPL expenses these amounts when an uncollectible account is written-off.
|
(b)
|
Deductions are of the nature for which the reserves were created. In the case of the accumulated provision for uncollectible accounts, deductions from this reserve are reduced by recoveries of amounts previously written off.
|
(c)
|
(3)
|
Exhibits Required by SEC Regulation S-K - Pursuant to Item 601(b)(4)(iii) of Regulation S-K, the registrants agree to furnish to the SEC, upon request, any instrument defining the rights of holders of unregistered long-term debt not filed as an exhibit to this combined Form 10-K. No such instrument authorizes securities in excess of 10% of the total assets of Alliant Energy, IPL or WPL, as the case may be. The following exhibits for Alliant Energy, IPL and WPL are filed herewith or incorporated herein by reference.
|
Exhibit Number
|
Description
|
3.1
|
|
3.1a
|
|
3.2
|
|
3.3
|
|
3.4
|
|
3.5
|
|
3.6
|
|
4.1
|
|
102
|
|
Exhibit Number
|
Description
|
4.2
|
|
4.3
|
|
4.4
|
|
4.5
|
|
4.6
|
|
4.7
|
|
4.8
|
|
4.9
|
|
4.10
|
|
4.11
|
|
4.12
|
|
4.13
|
|
4.14
|
|
4.15
|
|
4.15a
|
|
4.16
|
|
4.17
|
|
4.18
|
|
4.19
|
|
4.20
|
|
4.20a
|
|
4.21
|
|
4.22
|
|
4.23
|
|
4.24
|
|
4.25
|
|
4.26
|
|
4.27
|
|
4.28
|
|
103
|
|
Exhibit Number
|
Description
|
10.1
|
|
10.2
|
|
10.3
|
|
10.4#
|
|
10.4a#
|
|
10.4b#
|
|
10.4c#
|
|
10.4d#
|
|
10.4e#
|
|
10.4f#
|
|
10.4g#
|
|
10.5#
|
|
10.5a#
|
|
10.5b#
|
|
10.5c#
|
|
10.6#
|
|
10.6a#
|
|
10.7#
|
|
10.8#
|
|
10.8a#
|
|
10.8b#
|
|
10.9#
|
|
10.9a#
|
|
10.10#
|
|
10.11#
|
|
10.11a#
|
|
10.11b#
|
|
10.12#
|
|
10.12a#
|
|
104
|
|
Exhibit Number
|
Description
|
10.13#
|
|
10.14#
|
|
10.15#
|
|
10.16#
|
|
21.1
|
|
23.1
|
|
23.2
|
|
23.3
|
|
31.1
|
|
31.2
|
|
31.3
|
|
31.4
|
|
31.5
|
|
31.6
|
|
32.1
|
|
32.2
|
|
32.3
|
|
101.INS
|
Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
|
101.SCH
|
Inline XBRL Taxonomy Extension Schema Document
|
101.CAL
|
Inline XBRL Taxonomy Extension Calculation Linkbase Document
|
101.LAB
|
Inline XBRL Taxonomy Extension Label Linkbase Document
|
101.PRE
|
Inline XBRL Taxonomy Extension Presentation Linkbase Document
|
101.DEF
|
Inline XBRL Taxonomy Extension Definition Linkbase Document
|
104
|
Cover Page Interactive Data File (embedded within the Inline XBRL document)
|
|
105
|
|
ALLIANT ENERGY
|
|
INTERSTATE POWER
|
|
WISCONSIN POWER
|
CORPORATION
|
|
AND LIGHT COMPANY
|
|
AND LIGHT COMPANY
|
By: /s/ John O. Larsen
|
|
By: /s/ John O. Larsen
|
|
By: /s/ John O. Larsen
|
John O. Larsen
|
|
John O. Larsen
|
|
John O. Larsen
|
Chairman, President and Chief Executive Officer
|
|
Chairman and Chief Executive Officer
|
|
Chairman and Chief Executive Officer
|
ALLIANT ENERGY
|
|
INTERSTATE POWER
|
|
WISCONSIN POWER
|
CORPORATION
|
|
AND LIGHT COMPANY
|
|
AND LIGHT COMPANY
|
/s/ John O. Larsen
|
|
/s/ John O. Larsen
|
|
/s/ John O. Larsen
|
John O. Larsen
|
|
John O. Larsen
|
|
John O. Larsen
|
Chairman, President, Chief Executive Officer and Director (Principal Executive Officer)
|
|
Chairman, Chief Executive Officer and Director (Principal Executive Officer)
|
|
Chairman, Chief Executive Officer and Director (Principal Executive Officer)
|
|
|
|
|
|
/s/ Robert J. Durian
|
|
/s/ Robert J. Durian
|
|
/s/ Robert J. Durian
|
Robert J. Durian
|
|
Robert J. Durian
|
|
Robert J. Durian
|
Executive Vice President and Chief Financial Officer (Principal Financial Officer)
|
|
Executive Vice President and Chief Financial Officer (Principal Financial Officer)
|
|
Executive Vice President and Chief Financial Officer (Principal Financial Officer)
|
|
|
|
|
|
/s/ Benjamin M. Bilitz
|
|
/s/ Benjamin M. Bilitz
|
|
/s/ Benjamin M. Bilitz
|
Benjamin M. Bilitz
|
|
Benjamin M. Bilitz
|
|
Benjamin M. Bilitz
|
Chief Accounting Officer and Controller (Principal Accounting Officer)
|
|
Chief Accounting Officer and Controller (Principal Accounting Officer)
|
|
Chief Accounting Officer and Controller (Principal Accounting Officer)
|
|
|
|
|
|
/s/ Patrick E. Allen
|
|
/s/ Patrick E. Allen
|
|
/s/ Patrick E. Allen
|
Patrick E. Allen, Director
|
|
Patrick E. Allen, Director
|
|
Patrick E. Allen, Director
|
|
|
|
|
|
/s/ Jillian C. Evanko
|
|
/s/ Jillian C. Evanko
|
|
/s/ Jillian C. Evanko
|
Jillian C. Evanko, Director
|
|
Jillian C. Evanko, Director
|
|
Jillian C. Evanko, Director
|
|
|
|
|
|
/s/ Michael D. Garcia
|
|
/s/ Michael D. Garcia
|
|
/s/ Michael D. Garcia
|
Michael D. Garcia, Director
|
|
Michael D. Garcia, Director
|
|
Michael D. Garcia, Director
|
|
|
|
|
|
/s/ Singleton B. McAllister
|
|
/s/ Singleton B. McAllister
|
|
/s/ Singleton B. McAllister
|
Singleton B. McAllister, Director
|
|
Singleton B. McAllister, Director
|
|
Singleton B. McAllister, Director
|
|
|
|
|
|
/s/ Roger K. Newport
|
|
/s/ Roger K. Newport
|
|
/s/ Roger K. Newport
|
Roger K. Newport, Director
|
|
Roger K. Newport, Director
|
|
Roger K. Newport, Director
|
|
|
|
|
|
/s/ Thomas F. O’Toole
|
|
/s/ Thomas F. O’Toole
|
|
/s/ Thomas F. O’Toole
|
Thomas F. O’Toole, Director
|
|
Thomas F. O’Toole, Director
|
|
Thomas F. O’Toole, Director
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|
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/s/ Dean C. Oestreich
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/s/ Dean C. Oestreich
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/s/ Dean C. Oestreich
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Dean C. Oestreich, Director
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Dean C. Oestreich, Director
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Dean C. Oestreich, Director
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/s/ Carol P. Sanders
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/s/ Carol P. Sanders
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/s/ Carol P. Sanders
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Carol P. Sanders, Director
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Carol P. Sanders, Director
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Carol P. Sanders, Director
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/s/ Susan D. Whiting
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/s/ Susan D. Whiting
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/s/ Susan D. Whiting
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Susan D. Whiting, Director
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Susan D. Whiting, Director
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Susan D. Whiting, Director
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106
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|
•
|
$15,000 for the Chairperson of each the Nominating and Governance Committee, the Compensation and Personnel Committee and the Operations Committee of the Board.
|
Name of Subsidiary
|
State of Incorporation
|
|
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Interstate Power and Light Company
|
Iowa
|
|
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Wisconsin Power and Light Company
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Wisconsin
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1.
|
I have reviewed this annual report on Form 10-K of Alliant Energy Corporation;
|
2.
|
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
|
3.
|
Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
|
4.
|
The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
|
a)
|
Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
|
b)
|
Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
|
c)
|
Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
|
d)
|
Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
|
5.
|
The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
|
a)
|
All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
|
b)
|
Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
|
/s/ John O. Larsen
|
John O. Larsen
|
Chairman, President and Chief Executive Officer
|
1.
|
I have reviewed this annual report on Form 10-K of Alliant Energy Corporation;
|
2.
|
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
|
3.
|
Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
|
4.
|
The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
|
a)
|
Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
|
b)
|
Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
|
c)
|
Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
|
d)
|
Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
|
5.
|
The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
|
a)
|
All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
|
b)
|
Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
|
/s/ Robert J. Durian
|
Robert J. Durian
|
Executive Vice President and Chief Financial Officer
|
1.
|
I have reviewed this annual report on Form 10-K of Interstate Power and Light Company;
|
2.
|
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
|
3.
|
Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
|
4.
|
The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
|
a)
|
Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
|
b)
|
Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
|
c)
|
Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
|
d)
|
Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
|
5.
|
The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
|
a)
|
All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
|
b)
|
Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
|
/s/ John O. Larsen
|
John O. Larsen
|
Chairman and Chief Executive Officer
|
1.
|
I have reviewed this annual report on Form 10-K of Interstate Power and Light Company;
|
2.
|
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
|
3.
|
Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
|
4.
|
The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
|
a)
|
Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
|
b)
|
Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
|
c)
|
Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
|
d)
|
Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
|
5.
|
The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
|
a)
|
All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
|
b)
|
Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
|
/s/ Robert J. Durian
|
Robert J. Durian
|
Executive Vice President and Chief Financial Officer
|
1.
|
I have reviewed this annual report on Form 10-K of Wisconsin Power and Light Company;
|
2.
|
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
|
3.
|
Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
|
4.
|
The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
|
a)
|
Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
|
b)
|
Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
|
c)
|
Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
|
d)
|
Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
|
5.
|
The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
|
a)
|
All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
|
b)
|
Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
|
/s/ John O. Larsen
|
John O. Larsen
|
Chairman and Chief Executive Officer
|
1.
|
I have reviewed this annual report on Form 10-K of Wisconsin Power and Light Company;
|
2.
|
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
|
3.
|
Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
|
4.
|
The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
|
a)
|
Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
|
b)
|
Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
|
c)
|
Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
|
d)
|
Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
|
5.
|
The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
|
a)
|
All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
|
b)
|
Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
|
/s/ Robert J. Durian
|
Robert J. Durian
|
Executive Vice President and Chief Financial Officer
|
/s/ John O. Larsen
|
John O. Larsen
|
Chairman, President and Chief Executive Officer
|
/s/ Robert J. Durian
|
Robert J. Durian
|
Executive Vice President and Chief Financial Officer
|
/s/ John O. Larsen
|
John O. Larsen
|
Chairman and Chief Executive Officer
|
/s/ Robert J. Durian
|
Robert J. Durian
|
Executive Vice President and Chief Financial Officer
|
/s/ John O. Larsen
|
John O. Larsen
|
Chairman and Chief Executive Officer
|
/s/ Robert J. Durian
|
Robert J. Durian
|
Executive Vice President and Chief Financial Officer
|