THE UNDERSIGNED BORROWER REPRESENTS THAT THE LOAN EVIDENCED HEREBY IS BEING OBTAINED FOR BUSINESS/COMMERCIAL OR AGRICULTURAL PURPOSES AND NOT FOR PERSONAL, FAMILY, OR HOUSEHOLD PURPOSES. For value received, the undersigned, jointly and severally, if more than one, promises to pay to BRANCH BANKING AND TRUST COMPANY , a North Carolina banking corporation (the "Bank"), or order, at any of Bank's offices in the above referenced city (or such other place or places that may be hereafter designated by Bank), the sum of Five Million Dollars ($ 5,000,000.00 ), in immediately available coin or currency of the United States of America.

Interest shall accrue from the date hereof on the unpaid balance outstanding from time to time at the:

x Adjusted LIBOR rate, as defined in the attached Addendum to Renewal Promissory Note .

Principal and interest are payable as follows:

x Principal (plus any accrued interest not otherwise scheduled herein) is due in full at maturity on January 16, 2014 .

x Accrued interest is payable monthly commencing on February 16, 2013 and continuing on the same day of each calendar period thereafter, with one final payment of all remaining interest due on January 16, 2014 .

The undersigned shall pay to Bank a late fee in the amount of five percent (5%) of any installment past due for ten (10) or more days. When any installment payment is past due for ten (10) or more days, subsequent payments shall first be applied to the past due balance. In addition, the undersigned shall pay to Bank a returned payment fee if the undersigned or any other obligor hereon makes any payment at any time by check or other instrument, or by any electronic means, which is returned to Bank because of nonpayment due to nonsufficient funds.

All interest shall be computed and charged for the actual number of days elapsed on the basis of a year consisting of three hundred sixty (360) days. In the event periodic accruals of interest shall exceed any periodic fixed payment amount described above, the fixed payment amount shall be immediately increased, or additional supplemental interest payments required on the same periodic basis as specified above (increased fixed payments or supplemental payments to be determined in the Bank's sole discretion), in such amounts and at such times as shall be necessary to pay all accruals of interest for the period and all accruals of unpaid interest from previous periods. Such adjustments to the fixed payment amount or supplemental payments shall remain in effect for so long as any interest accruals shall exceed the original fixed payment amount and shall be further adjusted upward or downward to reflect changes in any variable interest rate; provided that unless elected otherwise above, the fixed payment amount shall not be reduced below the original fixed payment amount. However, Bank shall have the right, in its sole discretion, to lower the fixed payment amount below the original payment amount.

This Note is given by the undersigned in connection with the following agreements (if any) between the undersigned and the Bank:

x This loan is a renewal of Account#/Note #9660933082 / 00002.

x Florida Documentary Stamp Tax is not required

Security Agreement(s) conveying a security interest to Bank:

x     dated February 22, 2011 given by Southeast Power Corporation, as modified by the Modification of Security Agreement dated April 17, 2012.

x     dated February 22, 2011 given by Southeast Power Corporation as modified by the Modification of Security Agreement dated April 17, 2012.

x Loan Agreement of even date herewith, executed by x Borrower and x Guarantor(s).

The above-described documents executed in connection with this Note are hereinafter collectively referred to as the “Agreements”. As additional security for the indebtedness and obligations evidenced by this Note, the undersigned hereby grants to Bank a security interest in all existing and hereafter deposit accounts maintained with Bank.

No delay or omission on the part of the holder in exercising any right hereunder shall operate as a waiver of such right or of any other right of such holder, nor shall any delay, omission or waiver on any one occasion be deemed a bar to or waiver of the same or of any other right on any future occasion. Every one of the undersigned and every endorser or guarantor of this note regardless of the time, order or place of signing waives presentment, demand, protest and notices of every kind and assents to any one or more extensions or postponements of the time of payment or any other indulgences,

to any substitutions, exchanges or releases of collateral if at any time there be available to the holder collateral for this Note, and to the additions or releases of any other parties or persons primarily or secondarily liable.

The failure to pay any part of the principal or interest when due on this Note or to fully perform any covenant, obligation or warranty on this or on any other liability to the Bank by any one or more of the undersigned, by any affiliate of the undersigned (as defined in 11 USC Section (101)(2)), or by any guarantor or surety of this Note (said affiliate, guarantor, and surety are herein called “Obligor”); or if any financial statement or other representation made to the Bank by any of the undersigned or any Obligor shall be found to be materially incorrect or incomplete; or if any of the undersigned shall fail to furnish information and documentation to the Bank sufficient to verify the identity of the undersigned as required under the USA Patriot Act; or in the event of a default under any of the Agreements or any other obligation of any of the undersigned or any Obligor; or should the Bank demand that the undersigned secure or provide additional security for its obligations under this Note and security deemed adequate and sufficient by the Bank is not given when demanded; or in the event one or more of the undersigned or any Obligor shall die, terminate its existence, allow the appointment of a receiver for any part of its property, make an assignment for the benefit of creditors, or should a proceeding under bankruptcy or insolvency laws be initiated by or against any of the undersigned or any Obligor; or should the Bank otherwise deem itself, its security interests, or any collateral unsafe or insecure; or should the Bank in good faith believe that the prospect of payment or other performance is

    

impaired; or if there is an attachment, execution, or other judicial seizure of all or any portion of the Borrower's or any Obligor's assets, including an action or proceeding to seize any funds on deposit with the Bank, and such seizure is not discharged within 20 days; or if final judgment for the payment of money shall be rendered against the Borrower or any Obligor which is not covered by insurance or debt cancellation contract and shall remain undischarged for a period of 30 days unless such judgment or execution thereon is effectively stayed; or should any guarantor terminate any guaranty agreement given in connection with this Note, then any one of the same shall be a material default hereunder and this Note and other debts due the Bank by any one or more of undersigned shall immediately become due and payable at the option of the Bank without notice or demand of any kind, which is hereby waived. From and after any event of default hereunder, interest shall accrue on the sum of the principal balance and accrued interest then outstanding at the variable rate equal to the Bank's Prime Rate plus 5% per annum ("Default Rate") until such principal and interest have been paid in full, provided that such rate shall not exceed at any time the highest rate of interest permitted by the laws of the State of North Carolina; and further provided that such rate shall apply after judgment. In addition, upon default, the Bank may pursue its full legal remedies at law or equity, and the balance due hereunder may be charged against any obligation of the Bank to any party including any Obligor. Bank shall not be obligated to accept any check, money order, or other payment instrument marked "payment in full" on any disputed amount due hereunder, and Bank expressly reserves the right to reject all such payment instruments. Borrower agrees that tender of its check or other payment instrument so marked will not satisfy or discharge its obligation under this Note, disputed or otherwise, even if such check or payment instrument is inadvertently processed by Bank unless in fact such payment is in fact sufficient to pay the amount due hereunder.

Unless otherwise required under a Loan Agreement, if applicable, and as long as any indebtedness evidenced by this Note remains outstanding or as long as Bank remains obligated to make advances, the undersigned shall furnish annually an updated financial statement in a form satisfactory to Bank, which, when delivered shall be the property of the Bank.

The term "Prime Rate," if used herein, means the rate of interest per annum announced by the Bank from time to time and adopted as its Prime Rate at its executive offices in Winston-Salem, North Carolina. The Prime Rate is one of several rate indexes employed by the Bank when extending credit, and not necessarily the lowest rate. Any change in the interest rate resulting from a change in the Bank's Prime Rate shall become effective as of the opening of business on the effective date of the change. If this Note is placed with an attorney for collection, the undersigned agrees to pay, in addition to principal, interest, and late fees, if any, all costs of collection, including but not limited to reasonable attorneys' fees. All obligations of the undersigned and of any Obligor shall bind his heirs, executors, administrators, successors, and/or assigns. Use of the masculine pronoun herein shall include the feminine and the neuter, and also the plural. If more than one party shall execute this Note, the term "undersigned" as used herein shall mean all the parties signing this Note and each of them, and all such parties shall be jointly and severally obligated hereunder. Wherever possible, each provision of this Note shall be interpreted in such a manner to be effective and valid under applicable law, but if any provision of this Note shall be prohibited by or invalid under such law, such provision shall be ineffective but only to the extent of such prohibition or invalidity, without invalidating the remainder of such provision or the remaining provisions of this Note. All of the undersigned hereby waive all exemptions and homestead laws. The proceeds of the loan evidenced by this Note may be paid to any one or more of the undersigned.

From time to time the maturity date of this Note may be extended, or this Note may be renewed in whole or in part, or a new note of different form may be substituted for this Note, or the rate of interest may be modified, or changes may be made in consideration of loan extensions, and the holder hereof, from time to time may waive or surrender, either in whole or in part any rights, guaranties, secured interest, or liens, given for the benefit of the holder in connection with the payment and the securing the payment of this Note; but no such occurrence shall in any manner affect, limit, modify, or otherwise impair any rights, guaranties or security of the holder not specifically waived, released, or surrendered in writing, nor shall the undersigned makers, or any obligor, either primarily or contingently, be released by reason of the occurrence of any such event. The holder hereof, from time to time, shall have the unlimited right to release any person who might be liable hereon, and such release shall not affect or discharge the liability of any other person who is or might be liable hereon. No waivers and modifications shall be valid unless in writing and signed by the Bank. The Bank may, at its option, charge any fees for the modification, renewal, extension, or amendment of any of the terms of the Note permitted by the laws of the state of Florida. In case of a conflict between the terms of this Note and the Loan Agreement or Commitment Letter issued in connection herewith, the priority of controlling terms shall be first this Note, then the Loan Agreement, and then the Commitment Letter. This Note shall be governed by and construed in accordance with the laws of Florida.

This is a Renewal and Modification of that certain Revolving Line of Credit Promissory Note dated August 26, 2005 in the original principal amount of $1,000,000.00 subsequently modified by that certain Renewal Revolving Line of Credit Promissory Note dated March 14, 2006 in the original principal amount of $3,000,000.00, subsequently modified by the

Renewal Revolving Line of Credit Promissory Note dated September 28, 2006 in the original principal amount of $3,000,000.00, subsequently modified by Note Modification Agreement dated December 29, 2009, subsequently modified by Note Modification Agreement dated February 22, 2011, subsequently modified by Renewal Promissory Note dated January 4, 2012, subsequently modified by that certain Renewal and Additional Advance Note in the original principal amount of $5,000,000.00 dated April 17, 2012, subsequently modified by renewals, extensions, and modifications collectively “Original Promissory Note”. Borrower(s) and Bank agree that said Original Promissory Note be modified only to the limited extent as is hereinafter set forth; that all other terms, conditions, and covenants of said Original Promissory Note remain in full force and effect, and that all other obligations and covenants of Borrower(s), except as herein modified, shall remain in full force and effect, and binding between Borrower(s) and Bank; and Debtor(s)/Mortgagor(s), if different from Borrower(s), has agreed to the terms of this modification.

WAIVER OF TRIAL BY JURY. UNLESS EXPRESSLY PROHIBITED BY APPLICABLE LAW, THE UNDERSIGNED HEREBY WAIVE THE RIGHT TO TRIAL BY JURY OF ANY MATTERS OR CLAIMS ARISING OUT OF THIS NOTE OR ANY LOAN DOCUMENT EXECUTED IN CONNECTION HEREWITH OR OUT OF THE CONDUCT OF THE RELATIONSHIP BETWEEN THE UNDERSIGNED AND BANK. THIS PROVISION IS A MATERIAL INDUCEMENT FOR BANK TO MAKE THE LOAN EVIDENCED BY THIS NOTE. FURTHER, THE UNDERSIGNED HEREBY CERTIFY THAT NO REPRESENTATIVE OR AGENT OF BANK, NOR BANK’S COUNSEL, HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT BANK WOULD NOT SEEK TO ENFORCE THIS WAIVER OR RIGHT TO JURY TRIAL PROVISION IN THE EVENT OF LITIGATION. NO REPRESENTATIVE OR AGENT OF BANK, NOR BANK’S COUNSEL HAS THE AUTHORITY WAIVE, CONDITION OR MODIFY THIS PROVISION.

(SIGNATURES ON FOLLOWING PAGE)

BB&T

RENEWAL PROMISSORY NOTE SIGNATURE PAGE

IN WITNESS WHEREOF, the undersigned, on the day and year first written above, has caused this note to be executed under seal.

                    

BB&T

ADDENDUM TO RENEWAL PROMISSORY NOTE

THIS ADDENDUM TO RENEWAL PROMISSORY NOTE (“Addendum”) is hereby made a part of the Renewal Promissory Note dated January 15, 2013, from The Goldfield Corporation, a Delaware corporation (“Borrower”), payable to the order of Branch Banking and Trust Company (“Bank”) in the principal amount of $5,000,000.00 (including all renewals, extensions, modifications and substitutions thereof, the “Note”).

I. DEFINITIONS.

1.1      Adjusted LIBOR Rate means a rate of interest per annum equal to the sum obtained (rounded upwards, if necessary, to the next higher 1/16th of 1.0%) by adding (i) the One Month LIBOR plus (ii) 2.500% per annum, which shall be adjusted monthly on the first day of each LIBOR Interest Period. The Adjusted LIBOR Rate shall be adjusted for any change in the LIBOR Reserve Percentage so that Bank shall receive the same yield. The interest rate will not exceed a fixed maximum rate of 24.000% and will not decrease below a minimum rate of 0.000%. If the loan has been repaid prior to this date, no reimbursement will be made. Provided, however that in the event that if the Debt to Tangible Net Worth ratio exceeds 1.6:1, as set forth in Section V of the Loan Agreement of even date herewith, then the Adjusted LIBOR Rate should be the One Month LIBOR plus 2.900%.

1.2      Business Day means a day other than a Saturday, Sunday, legal holiday or any other day when the Bank is authorized or required by applicable law to be closed.

1.3      LIBOR Advance means the advances made by Bank to Borrower evidenced by this Note upon which the Adjusted LIBOR Rate of interest shall apply.

1.4      LIBOR Interest Period means the period, as may be elected by the Borrower applicable to any LIBOR Advance, commencing on the date the Note is first made (or the data of any subsequent LIBOR addendum to the Note) and ending on the day that is immediately prior to the numerically corresponding day of each month thereafter; provided that:

1.5      LIBOR Reserve Percentage means the maximum aggregate rate at which reserves (including, without limitation, any marginal supplemental or emergency reserves) are required to be maintained

under Regulation D by member banks of the Federal Reserve System with respect to dollar funding in the London interbank market. Without limiting the effect of the foregoing,

the LIBOR Reserve Percentage shall reflect any other reserves required to be maintained by such member banks by reason of any applicable regulatory change against (i) any category of liability which includes deposits by reference to which the Adjusted LIBOR Rate is to be determined or (ii) any category of extensions of credit or other assets related to LIBOR.

1.6      One Month LIBOR means the average rate quoted on Reuters Screen LIBOR01 Page (or such replacement page) on the determination date for deposits in U. S. Dollars offered in the London interbank market for one month determined as of 11:00 am London time two (2) Business Days prior to the commencement of the applicable LIBOR Interest Period; provided that if the above method for determining one-month LIBOR shall not be available, the rate quoted in The Wall Street Journal, or a rate determined by a substitute method of determination agreed on by Borrower and Bank; provided, if such agreement is not reached within a reasonable period of time (in Bank’s sole judgment), a rate reasonably determined by Bank in its sole discretion as a rate being paid, as of the determination date, by first class banking organizations (as determined by Bank) in the London interbank market for U. S. Dollar deposits.

1.7      Standard Rate means, for any day, a rate per annum equal to the Bank’s announced Prime Rate minus 0% per annum, and each change in the Standard Rate shall be effective on the date any change in the Prime Rate is publicly announced as being effective.

II.      LOAN BEARING ADJUSTED LIBOR RATE

2.1      Application of Adjusted LIBOR Rate . The Adjusted LIBOR Rate shall apply to the entire principal balance outstanding of a LIBOR Advance for any LIBOR Interest Period.

2.2      Adjusted LIBOR Based Rate Protections .

(b)      Illegality; Impracticability . In the event that Bank shall determine, which determination shall be final, conclusive and binding, that the making, maintaining or continuance of any portion of a LIBOR Advance (i) has become unlawful as a result of compliance by Bank with any law, treaty, governmental rule, regulation, guideline or order (or would conflict with any of the same not having the force of law even though the failure to comply therewith would not be unlawful) or (ii) has become impracticable, or would cause Bank material hardship, as a result of contingencies occurring after the date of this Note materially and adversely affect the London interbank market or Bank’s ability to make LIBOR Advances

generally, then, and in any such event, Bank shall give notice (by telephone confirmed in writing or by telecopy) to Borrower of such determination. Thereafter, (x) the obligation of Bank to make any LIBOR Advances or to convert any portion of the loan to a LIBOR Advance shall be suspended until such notice shall be withdrawn by Bank, and (y) any request by Borrower for a LIBOR Advance shall be deemed to be a request for an advance at the Standard Rate.

BB&T

LOAN AGREEMENT

9660933082-90002/00002
Account Number

This Loan Agreement (the “Agreement”) is made this 15 ^th day of January, 2013 by and between BRANCH BANKING AND TRUST COMPANY, a North Carolina banking corporation (“Bank”), and:

The Goldfield Corporation, a State of Delaware corporation (“Borrower”), having its executive office at Melbourne, Florida.

Southeast Power Corporation, Pineapple House of Brevard, Inc. and Bayswater Development Corporation (individually “Guarantor” and collectively the “Guarantors”).

The Borrower has applied to Bank for and the Bank has agreed to make, subject to the terms of this Agreement, the following loan(s) (hereinafter referred to, singularly or collectively, if more than one, as “Loan”):

Line of Credit (“Line of Credit”) in the maximum principal amount not to exceed $5,000,000.00 at any one time outstanding for the purpose of renewal of existing line of credit for short term working capital which shall be evidenced by the Borrower’s Renewal Promissory Note dated on or after the date hereof which shall mature January 16, 2014, when the entire unpaid principal balance then outstanding plus accrued interest thereon shall be paid in full. Prior to maturity or the occurrence of any Event of Default hereunder and subject to any availability limitations, as applicable, the Borrower may borrow, repay, and reborrow under the Line of Credit through maturity. The Line of Credit shall bear interest at the rate set forth in any such Note evidencing all or any portion of the Line of Credit, the terms of which are incorporated herein by reference.

The Renewal Promissory Note evidencing the Line of Credit is referred to herein as the “Note” and shall include all extensions, renewals, modifications and substitutions thereof. The Line of Credit shall be secured by the collateral described in the security documents described below.

This agreement replaces any and all prior loan agreements executed between the Bank and the Borrower for account number 9660933082-90002/00002.

I.      CONDITIONS PRECEDENT

The Bank shall not be obligated to make any disbursement of Loan proceeds until all of the following conditions have been satisfied by proper evidence, execution, and/or delivery to the Bank of the following items in addition to this Agreement, all in form and substance satisfactory to the Bank and the Bank’s counsel in their sole discretion:

USA Patriot Act Verification Information : Information or documentation, including but not limited to the legal name, address, tax identification number, driver’s license, and date of birth (if

the Borrower is an individual) of the Borrower sufficient for the Bank to verify the identity of the Borrower in accordance with the USA Patriot Act. Borrower shall notify Bank promptly of any change in such information.

Note(s) : The Note(s) evidencing the Loans(s) duly executed by the Borrower.

Security Agreement(s) : Security Agreement(s) in which Borrower and any other owner (a “Debtor”) of personal property collateral shall grant to Bank a first priority security interest in the personal property specified therein.

UCC Financing Statements : Copies of UCC Financing Statements duly filed in Borrower’s or other owner’s state of incorporation, organization or residence, and in all jurisdictions necessary, or in the opinion of the Bank desirable, to perfect the security interests granted in the Security Agreement(s), and certified copies of Information Requests identifying all previous financing statements on record for the Borrower or other owner, as appropriate from all jurisdictions indicating that no security interest has previously been granted in any of the collateral described in the Security Agreement(s), unless prior approval has been given by the Bank.

Authorization and Certificate : An Authorization and Certificate executed by each Debtor under which such Debtor authorizes Bank to file a UCC Financing Statement describing collateral owned by such Debtor.

Commitment Fee : A commitment fee (or balance thereof) of $6,250.00 payable to the Bank on the date of execution of the Loan Documents.

Corporate Resolution : A Corporate Resolution duly adopted by the Board of Directors of the Borrower authorizing the execution, delivery, and performance of the Loan Documents on or in a form provided by or acceptable to Bank.

Guaranty : Guaranty Agreement(s) duly executed by the Guarantor(s).

Additional Documents : Receipt by the Bank of other approvals, opinions, or documents as the Bank may reasonably request.

II.      REPRESENTATIONS AND WARRANTIES

The Borrower and Guarantor(s) represent and warrant to Bank that:

2.1      Financial Statements . The balance sheet of the Borrower and its subsidiaries, if any, and the related Statements of Income and Retained Earnings of the Borrower and its subsidiaries, the accompanying footnotes together with the accountant’s opinion thereon, and all other financial information previously furnished to the Bank, are true and correct and fairly reflect the financial condition of the Borrower and its subsidiaries as of the dates thereof, including all contingent liabilities of every type, and the financial condition of the Borrower and its subsidiaries as stated therein has not changed materially and adversely since the date thereof. Each Guarantor further represents and warrants that all financial statements provided by such Guarantor to Bank concerning

such Guarantor’s financial condition are true and correct and fairly represent such Guarantor’s financial condition as of the dates thereof.

2.2      Name, Capacity and Standing . The Borrower’s exact legal name is correctly stated in the initial paragraph of the Agreement. If the Borrower and/or any Guarantor is a corporation, general partnership, limited partnership, limited liability partnership, or limited liability company, each warrants and represents that it is duly organized and validly existing under the laws of its respective state of incorporation or organization; that it and/or its subsidiaries, if any, are duly qualified and in good standing in every other state in which the nature of their business shall require such qualification, and are each duly authorized by their board of directors, general partners or member/manager(s), respectively, to enter into and perform the obligations under the Loan Documents.

2.3      No Violation of Other Agreements . The execution of the Loan Documents, and the performance by the Borrower, by any and all pledgors (whether the Borrower or other owners of collateral property securing payment of the Loan (hereinafter sometimes referred to as the “Pledgor”)) or by the Guarantor(s) thereunder will not violate any provision, as applicable, of its articles of incorporation, by-laws, articles of organization, operating agreement, agreement of partnership, limited partnership or limited liability partnership, or, of any law, other agreement, indenture, note, or other instrument binding upon the Borrower, Pledgor or Guarantor(s), or give cause for the acceleration of any of the respective obligations of the Borrower or Guarantor(s).

2.4      Authority . All authority from and approval by any federal, state, or local governmental body, commission or agency necessary to the making, validity, or enforceability of this Agreement and the other Loan Documents has been obtained.

2.5      Asset Ownership . The Borrower and each Guarantor have good and marketable title to all of the properties and assets reflected on the balance sheets and financial statements furnished to the Bank, and all such properties and assets are free and clear of mortgages, deeds of trust, pledges, liens, and all other encumbrances except as otherwise disclosed by such financial statements. In addition, each other owner of collateral has good and marketable title to such collateral, free and clear of any liens, security interests and encumbrances, except as otherwise disclosed to Bank.

2.6      Discharge of Liens and Taxes . The Borrower and its subsidiaries, if any, and each Guarantor have filed, paid, and/or discharged all taxes or other claims which may become a lien on any of their respective properties or assets, excepting to the extent that such items are being appropriately contested in good faith and for which an adequate reserve (in an amount acceptable to Bank) for the payment thereof is being maintained.

2.7      Regulations U and X . None of the Loan proceeds shall be used directly or indirectly for the purpose of purchasing or carrying any margin stock in violation of the provisions of Regulation U and Regulation X of the Board of Governors of the Federal Reserve System.

2.8      ERISA . Each employee benefit plan, as defined by the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), maintained by the Borrower or by any subsidiary of the Borrower or Guarantor(s) meets, as of the date hereof the minimum funding standards of Section 302 of ERISA, all applicable requirements of ERISA and of the Internal Revenue Code of 1986, as amended, and no “Reportable Event” nor “Prohibited Transaction” (as defined by ERISA) has occurred with respect to any such plan.

2.9      Litigation . There is no claim, action, suit or proceeding pending, threatened or reasonably anticipated before any court, commission, administrative agency, whether State or Federal, or arbitration which will materially adversely affect the financial condition, operations, properties, or business of the Borrower or its subsidiaries, if any, or the Guarantor(s), or the ability of the Borrower or the Guarantor(s) to perform their obligations under the Loan Documents.

2.10      Other Agreements . The representations and warranties made by Borrower to Bank in the other Loan Documents are true and correct in all respects on the date hereof.

2.11      Binding and Enforceable . The Loan Documents, when executed, shall constitute valid and binding obligations of the Borrower and Guarantors respectively, the execution of such Loan Documents has been duly authorized by the parties thereto, and are enforceable in accordance with their terms, except as may be limited by bankruptcy, insolvency, moratorium, or similar laws affecting creditors’ rights generally.

2.12      Commercial Purpose . The Loan(s) are not “consumer transactions”, as defined in the Florida Uniform Commercial Code, and none of the collateral was or will he purchased or held primarily for personal, family or household purposes.

III.      AFFIRMATIVE COVENANTS

The Borrower covenants and agrees that from the date hereof and until payment in full of all indebtedness and performance of all obligations owed under the Loan Documents, Borrower shall:

3.1      Maintain Existence and Current Legal Form of Business . (a) Maintain its existence and good standing in the state of its incorporation or organization, (b) maintain its current legal form of business indicated above, and, (a), as applicable, qualify and remain qualified as a foreign corporation, general partnership, limited partnership, limited liability partnership or limited liability company in each jurisdiction in which such qualification is required.

3.2      Maintain Records . Keep adequate records and books of account, in which complete entries will be made in accordance with GAAP consistently applied, reflecting all financial transactions of the Borrower.

3.3      Maintain Properties . Maintain, keep, and preserve all of its properties (tangible and intangible) including the collateral necessary or useful in the conduct of its business in good working order and condition, ordinary wear and tear excepted.

3.4      Conduct of Business . Continue to engage in an efficient, prudent, and economical manner in a business of the same general type as now conducted.

3.5      Maintain Insurance . Maintain insurance with financially sound and reputable insurance companies or associations in such amounts and covering such risks as are usually carried by companies engaged in the same or a similar business, and business interruption insurance if required by Bank, which insurance may provide for reasonable deductible(s). The Bank shall be

named as loss payee (Long Form) an all policies which apply to the Bank’s collateral, and the Borrower shall deliver certificates of insurance at closing evidencing same.

3.6      Comply With Laws . Comply in all respects with all applicable laws, rules, regulations, and orders including, without limitation, paying before the delinquency of all taxes, assessments, and governmental charges imposed upon it or upon its property, and all Environmental Laws.

3.7      Right of Inspection . Permit the officers and authorized agents of the Bank, at any reasonable time or times in the Bank’s sole discretion, to examine and make copies of the records and books of account of, to visit the properties of the Borrower, and to discuss such matters with any officers, directors, managers, members or partners, limited or general of the Borrower, and the Borrower’s independent accountant as the Bank deems necessary and proper.

3.8      Reporting Requirements . Furnish to the Bank:

Quarterly Consolidated Financial Statements : As soon as available and not later than two (2) weeks after complying with required Securities and Exchange Commission reporting requirements, consolidated and consolidating quarterly balance sheets, statements of income, cash flow, and retained earnings for the period ended, all in reasonable detail, and all prepared in accordance with GAAP consistently applied and certified as true and correct by an officer of the Borrower (“Quarterly Reporting Requirements”).

Annual Consolidated Financial Statements : As soon as available and not later than two (2) weeks after complying with required Securities and Exchange Commission reporting requirements, consolidated and consolidating annual balance sheets, statements of income, cash flow and retained earnings for the period ended, all in reasonable detail, and all prepared in accordance with GAAP consistently applied. The financial statements must be of the following quality or better: Audited (“Annual Reporting Requirements”).

Notice of Litigation : Promptly after the receipt by the Borrower, or by any Guarantor of which Borrower has knowledge, of notice or complaint of any action, suit, and proceeding before any court or administrative agency of any type which, if determined adversely, could have a material adverse effect on the financial condition, properties, or operations of the Borrower or Guarantor, as appropriate.

Notice of Default : Promptly upon discovery or knowledge thereof, notice of the existence of any event of default under this Agreement or any other Loan Documents.

USA Patriot Act Verification Information : Information or documentation, including but not limited to the legal name, address, tax identification number, driver’s license, and data of birth (if the Borrower is an individual) of the Borrower sufficient for the Bank to verify the identity of the Borrower in accordance with the USA Patriot Act. Borrower shall notify Bank promptly of any change in such information.

Financial Statement Certification : Along with Quarterly and Annual Consolidated Financial Statements, a certification executed by the Chief Financial Officer of the Borrower stating:

Based on my knowledge, the financial statements do 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.

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.

Other Information : Such other information as the Bank may from time to time reasonably request.

3.9      Deposit Accounts . Maintain substantially all of its demand deposit/operating accounts with the Bank.

3.10      Affirmative Covenants from other Loan Documents . All affirmative covenants contained in any Deed of Trust, Security Agreement, Assignment of Leases and Rents, or other security document executed by the Borrower which are described in Section I hereof are hereby incorporated by reference herein.

IV.      GUARANTORS’ COVENANTS

Each Guarantor covenants and agrees that from the date hereof and until payment in full of all indebtedness and performance of all obligations owed under the Loan Documents, Guarantor shall:

4.1      Maintain Existence and Current Legal Form of Business . If Guarantor is a corporation, partnership, limited partnership, limited liability partnership or limited liability company, (a) maintain its existence and good standing in the state of its incorporation or organization, (b) maintain its current legal form of business as shown on the guaranty agreement provided by Guarantor to Bank in connection with the Loan, (c) without the Bank’s prior written consent or enter into any merger, consolidation, reorganization or exchange of stock, ownership interests or assets, and (d) as applicable, qualify and remain qualified as a foreign corporation, general partnership, limited partnership, limited liability partnership or limited liability company in each jurisdiction in which such qualification is required.

4.2      Maintain Properties . Not, without the prior written consent of Bank, sell, transfer or otherwise dispose of all or substantially all of Guarantor’s properties (tangible and intangible), except in the ordinary course of business.

4.3      Comply With Laws . Comply in all respects with all applicable laws, rules, regulations, and orders including, without limitation, paying before the delinquency of all taxes, assessments, and governmental charges imposed or assessed upon Guarantor or upon Guarantor’s property, and all Environmental Laws.

4.4      Reporting Requirements . Furnish to the Bank:

Annual Financial Statement(s) : Not applicable.

Notice of Litigation : Promptly after the receipt by Guarantor, or by Borrower of which Guarantor has knowledge, of notice of any action, suit, and proceeding before any court or governmental agency of any type which, if determined adversely, could have a material adverse effect on the financial condition, properties, or operations of the Guarantor or Borrower, as appropriate.

4.5      Other Information : Furnish such other information as the Bank may from time to time reasonably request.

V.      FINANCIAL COVENANTS

The Borrower covenants and agrees that from the date hereof until payment in full of all indebtedness and the performance of all obligations under the Loan Documents, the Borrower shall at all times maintain the following financial covenants and ratios all in accordance with GAAP unless otherwise specified:

Tangible Net Worth . A minimum tangible net worth of not less than $18,000,000.00 as evidenced by Borrower’s consolidated annual audited financial statement as included in its Form 10-K beginning with its fiscal year ending on December 31, 2012. Tangible Net Worth is defined as net worth, plus obligations contractually subordinated to debts owed to Bank, minus goodwill, contract rights, and assets representing claims on stockholders or affiliated entities.

Debt to Tangible Net Worth . A ratio of total liabilities to tangible net worth of not greater than 2.25:1. In the event that this ratio exceeds 1.6:1 (tested on consolidated audited financial statements), then the interest rate shall increase by .40% as set forth in the Renewal and Additional Advance Promissory Note.

VI.      NEGATIVE COVENANTS

The Borrower covenants and agrees that from the date hereof and until payment in full of all indebtedness and performance of all obligations under the Loan Documents, the Borrower shall not, without the prior written consent of the Bank:

6.1      Liens . Create, incur, assume, or suffer to exist any lien upon or with respect to the Mortgaged Property, any of Borrower’s properties, or the properties of any Pledgor securing payment of the Loan, now owned or hereafter acquired, except:

6.2      Debt . Create, incur, assume, or suffer to exist any debt, except:

6.3      Change of Legal Form of Business; Purchase of Assets . Change the legal form of Borrower’s business as shown above, whether by merger, consolidation, conversion or otherwise, and Borrower shall not purchase all or substantially all of the assets or business of any Person.

6.4      Leases . Create, incur, assume, or suffer to exist any operating lease obligation in excess of $500,000.00 annually, except:

6.5      Guaranties . Assume, guarantee, endorse, or otherwise be or become directly or contingently liable for obligations of any Person, except guaranties by endorsement of negotiable instruments for deposit or collection or similar transactions in the ordinary course of business.

6.6      Disposition of Assets . Sell, lease, or otherwise dispose of any of its assets or properties except in the ordinary and usual course of its business.

6.7      Negative Covenants from other Loan Documents . All negative covenants contained in any Deed of Trust, Security Agreement, Assignment of Leases or Rents, or other security document executed by the Borrower which are described in Section I hereof are hereby incorporated by reference herein.

VII.      HAZARDOUS MATERIALS AND COMPLIANCE WITH ENVIRONMENTAL LAWS

7.1      Investigation . Borrower hereby certifies that it has exercised due diligence to ascertain whether its real property, including without limitation the Mortgaged Property, is or has been affected by the presence of asbestos, oil, petroleum or other hydrocarbons, urea formaldehyde, PCBs, hazardous or nuclear waste, toxic chemicals and substances, or other hazardous materials (collectively, “Hazardous Materials”), as defined in applicable Environmental Laws. Borrower represents and warrants that there are no such Hazardous Materials contaminating its real property, nor have any such materials been released on or stored on or improperly disposed of on its real property during its ownership, occupancy or operation thereof Borrower hereby agrees that, except in strict compliance with applicable Environmental Laws, it shall not knowingly permit any release, storage or contamination as long as any indebtedness or obligations to Bank under the Loan Documents remains unpaid or unfulfilled. In addition, Borrower does not have or use any underground storage tanks on any of its real property, including the Mortgaged Property which are not registered with the appropriate Federal and/or State agencies and which are not properly equipped and maintained in accordance with all Environmental Laws. If requested by Bank, Borrower shall provide Bank with all necessary and reasonable assistance required for purposes of determining the existence of Hazardous Materials on the Mortgaged Property, including allowing Bank access to the Mortgaged Property, and access to Borrower’s employees having knowledge of, and to files and records within Borrower’s control relating to the existence, storage, or release of Hazardous Materials on the Mortgaged Property.

7.2      Compliance . Borrower agrees to comply with all applicable Environmental Laws, including, without limitation, all those relating to Hazardous Materials. Borrower further agrees to provide Bank, and all appropriate Federal and State authorities, with immediate notice in writing of any release of Hazardous Materials on the Collateral and to pursue diligently to completion all appropriate and/or required remedial action in the event of such release.

7.3      Remedial Action . Bank shall have the right, but not the obligation, to undertake all or any part of such remedial action in the event of a release of Hazardous Materials on the Mortgaged Property and to add any expenditures so made to the principal indebtedness secured by the Security Agreement. Borrower agrees to indemnify and hold Bank harmless from any and all loss or liability arising out of any violation of the representations, covenants, and obligations contained in this Section VII, or resulting from the recording of the Security Agreement.

VIII.      EVENTS OF DEFAULT

The following shall be “Events of Default” by Borrower or any Guarantor:

8.1      The failure to make prompt payment of any installment of principal or interest on any of the Note(s) when due or payable.

8.2      Should any representation or warranty made in the Loan Documents prove to be false or misleading in any material respect.

8.3      Should any report, certificate, financial statement, or other document furnished prior to the execution of or pursuant to the terms of this Agreement prove to be false or misleading in any material respect.

8.4      Should the Borrower or any Guarantor default on the performance of any other obligation of indebtedness when due or in the performance of any obligation incurred in connection with money borrowed.

8.5      Should the Borrower, any Guarantor or any Pledgor breach any covenant, condition, or agreement made under any of the Loan Documents, or that certain Promissory Note dated February 22, 2011 in the original principal amount of $6,940,000.00 made by Southeast Power Corporation in favor of Bank (Loan # 9660933120-00004) and any loan document or instrument evidencing and securing the liability under said Promissory Note, or that certain Promissory Note dated April 17, 2012 in the original principal amount of $1,500,000.00 made by Southeast Power Corporation in favor of Bank (Loan # 9660933120 – 00005) and any loan document or instrument evidencing and securing the liability under said Promissory Note.

8.6      Should a custodian be appointed for or take possession of any or all of the assets of the Borrower or any Guarantor, or should the Borrower or any Guarantor either voluntarily or involuntarily become subject to any insolvency proceeding, including becoming a debtor under the United States Bankruptcy Code, any proceeding to dissolve the Borrower or any Guarantor, any proceeding to have a receiver appointed, or should the Borrower or any Guarantor make an assignment for the benefit of creditors, or should there be an attachment, execution, or other judicial seizure of all or any portion of the Borrower’s or any Guarantors assets, including an action or proceeding to seize any funds on deposit with the Bank, and such seizure is not discharged within 30 days.

8.7      Should final judgment for the payment of money be rendered against the Borrower or any Guarantor which is not covered by insurance and shall remain undischarged for a period of 30 days unless such judgment or execution thereon be effectively stayed.

8.8      Upon the death of, or termination of existence of, or dissolution of, any Borrower, Pledge, or Guarantor.

8.9      Should the Bank in good faith deem itself, its liens and security interests, if any, or any debt thereunder unsafe or insecure, or should the Bank believe in good faith that the prospect of payment of any debt or other performance by the Borrower or any Guarantor is impaired.

8.10      Should any lien or security interest granted to Bank to secure payment of the Note(s) terminate, fail for any reason to have the priority agreed to by Bank on the date granted, or become unperfected or invalid for any reason.

8.11      Except for monetary defaults, Borrower shall have a forty five (45) day cure period from the date the Bank notifies the Borrower of any Events of Default.

IX.      REMEDIES UPON DEFAULT

Upon the occurrence of any of the above listed Events of Default, the Bank may at any time thereafter, at its option, take any or all of the following actions, at the same or at different times:

9.1      Declare the balance(s) of the Note(s) to be immediately due and payable, both as to principal and interest, late fees, and all other amounts/expenditures without presentment, demand, protest, or notice of any kind, all of which are hereby expressly waived by Borrower and each Guarantor, and such balance(s) shall accrue interest at the Default Rate as provided herein until paid in full;

9.2      Require the Borrower or Guarantor(s) to pledge additional collateral to the Bank from the Borrower’s or any Guarantor’s assets and properties, the acceptability and sufficiency of such collateral to be determined in the Bank’s sole discretion;

9.3      Take immediate possession of and foreclose upon any or all collateral which may be granted to the Bank as security for the indebtedness and obligations of Borrower or any Guarantor under the Loan Documents;

9.4      Exercise any and all other rights and remedies available to the Bank under the terms of the Loan Documents and applicable law, including the Florida Uniform Commercial Code;

9.5      Any obligation of the Bank to advance funds to the Borrower or any other Person under the terms of under the Note(s) and all other obligations, if any, of the Bank under the Loan Documents shall immediately cease and terminate unless and until Bank shall reinstate such obligation in writing.

X.      MISCELLANEOUS PROVISIONS

10.1      Definitions .

“ Default Rate ” shall mean a rate of interest equal to Bank’s Prime Rate plus five percent (5%) per annum (not to exceed the legal maximum rate) from and after the date of an Event of Default hereunder which shall apply, in the Bank’s sole discretion, to all sums owing, including principal and interest, on such date.

“ Environmental Laws ” shall mean all applicable federal and state laws and regulations which affect or may affect the Mortgaged Property, including without limitation the Comprehensive Environmental Response, Compensation, and Liability Act (42 U.S.C. Sections 9601 et seq.), the Resource Conservation and Recovery Act (42 U.S.C. Sections 6901 et seq.), the Federal Water Pollution Control Act (33 U.S.C. Sections 1251 et seq.), the Clean Air Act (42 U.S.C. Section 7401 et seq.), the Toxic Substances Control, Act (15 U.S.C. Section 2601 et seq.), all such applicable environmental laws and regulations of the State of Florida, as such laws and regulation„ may be amended from time to time.

“ Loan Documents ” shall mean this Agreement including any schedule attached hereto, the Note(s), the Deed(s) of Trust, the Mortgage(s), Security Deeds, the Security Agreement(s), the Assignment(s) of Leases and Rents, all UCC Financing Statements, the

Guaranty Agreement(s), and all other documents, certificates, and instruments executed in connection therewith, and all renewals, extensions, modifications, substitutions, and replacements thereto and therefore.

“ Person ” shall mean an individual, partnership, corporation, trust, unincorporated organization, limited liability company, limited liability partnership, association, joint venture, or a government agency or political subdivision thereof.

“ GAAP ” shall mean generally accepted accounting principles as established by the Financial Accounting Standards Board or the American Institute of Certified Public Accountants, as amended and supplemented from time to time.

“ Prime Rate ” shall mean the rate of interest per annum announced by the Bank from time to time and adopted as its Prime Rate, which is one of several rate indexes employed by the Bank when extending credit, and may not necessarily be the Bank’s lowest lending rate. 10.02. Non-impairment. If any one or more provisions contained in the Loan Documents shall be held invalid, illegal, or unenforceable in any respect, the validity, legality, and enforceability of the remaining provisions contained therein shall not in any way be affected or impaired thereby and shall otherwise remain in full force and effect.

10.2      Non-impairment . If any one or more provisions contained in the Loan Documents shall be held invalid, illegal, or unenforceable in any respect, the validity, legality, and enforceability of the remaining provisions contained therein shall not in any way be affected or impaired thereby and shall otherwise remain in full force and effect.

10.3      Applicable Law . The Loan Documents shall be construed in accordance with and governed by the laws of the State of Florida.

10.4      Waiver . Neither the failure or any delay on the part of the Bank in exercising any right, power or privilege granted in the Loan Documents shall operate as a waiver thereof, nor shall any single or partial exercise thereof preclude any other or further exercise of any other right, power, or privilege which may be provided by law.

10.5      Modification . No modification, amendment, or waiver of any provision of any of the Loan Documents shall be effective unless in writing and signed by the Borrower and Bank.

10.6      Payment Amount Adjustment . In the event that any Loan(s) referenced herein has a variable (floating) interest rate and the interest rate increases, Bank, at its sole discretion, may at any time adjust the Borrower’s payment amount(s) to prevent the amount of interest accrued in a given period to exceed the periodic payment amount or to cause the Loan(s) to be repaid within the same period of time as originally agreed upon.

10.7      Stamps and Fees . The Borrower shall pay all federal or state stamps, taxes, or other fees or charges, if any are payable or are determined to be payable by reason of the execution, delivery, or issuance of the Loan Documents or any security granted to the Bank; and the Borrower and

Guarantor agree to indemnify and hold harmless the Bank against any and all liability in respect thereof.

10.8      Attorneys’ Fees . In the event the Borrower or any Pledgor or Guarantor shall default in any of its obligations hereunder and the Bank believes it necessary to employ an attorney to assist in the enforcement or collection of the indebtedness of the Borrower to the Bank, to enforce the terms and provisions of the Loan Documents, to modify the Loan Documents, or in the event the Bank voluntarily or otherwise should become a party to any suit or legal proceeding (including a proceeding conducted under the Bankruptcy Code), the Borrower and Guarantors agree to pay the reasonable attorneys’ fees of the Bank and all related costs of collection or enforcement that may be incurred by the Bank. The Borrower and Guarantor shall be liable for such attorneys’ fees and costs whether or not any suit or proceeding is actually commenced.

10.9      Bank Making Required Payments . In the event Borrower shall fail to maintain insurance, pay taxes or assessments, costs and expenses which Borrower is, under any of the terms hereof or of any Loan Documents, required to pay, or fail to keep any of the properties and assets constituting collateral free from new security interests, liens, or encumbrances, except as permitted herein, Bank may at its election make expenditures for any or all such purposes and the amounts expended together with interest thereon at the Default Rate, shall become immediately due and payable to Bank, and shall have benefit of and be secured by the collateral; provided, however, the Bank shall be under no duty or obligation to make any such payments or expenditures.

10.10      Right of Offset . Any indebtedness owing from Bank to Borrower may be set off and applied by Bank on any indebtedness or liability of Borrower to Bank, at any time and from time to time after maturity, whether by acceleration or otherwise, and without demand or notice to Borrower. Bank may sell participations in or make assignments of any Loan made under this Agreement, and Borrower agrees that any such participant or assignee shall have the same right of setoff as is granted to the Bank herein.

10.11      UCC Authorization . Borrower authorizes Bank to file such UCC Financing Statements describing the collateral in any location deemed necessary and appropriate by Bank.

10.12      Modification and Renewal Fees . Bank may, at its option, charge any fees for modification, renewal, extension, or amendment of any terms of the Note(s) not prohibited by Florida law, and as otherwise permitted by law if Borrower is located in another state.

10.13      Conflicting Provisions . If provisions of this Agreement shall conflict with any terms or provisions of any of the Note(s) or security document(s) or any schedule attached hereto, the provisions of such Note(s) or security document(s) or any schedule attached hereto, as appropriate, shall take priority over any provisions in this Agreement.

10.14      Notices . Any notice permitted or required by the provisions of this Agreement shall be deemed to have been given when delivered in writing to the City Executive or any Vice President of the Bank at its offices in Melbourne, Florida, and to the President of the Borrower at its offices in Melbourne, Florida, when sent by certified mail and return receipt requested.

10.15      Consent to Jurisdiction . Borrower hereby irrevocably agrees that any legal action or proceeding arising out of or relating to this Agreement may be instituted in any Florida state court or federal court sitting in the State of Florida, or in such other appropriate court and venue

as Bank may choose in its sole discretion. Borrower consents to the jurisdiction of such courts and waives any objection relating to the basis for personal or in rem jurisdiction or to venue which Borrower may now or hereafter have in any such legal action or proceedings.

10.16      Arbitration . Upon demand of any party hereto, whether made before or after institution of any judicial proceeding, any dispute, claim or controversy arising out of, connected with, or relating to the Agreement and other Loan Documents (“Disputes”) between or among the parties to this Agreement and other Loan Documents shall be resolved by binding arbitration as provided herein. Institution of a judicial proceeding by a party does not waive the right of that party to demand arbitration hereunder. Disputes may include, without limitation, tort claims, counterclaims, disputes as to whether a matter is subject to arbitration, claims brought as class actions, claims arising from Loan Documents executed in the future, or claims arising out of or connected with the transaction reflected by this Agreement and other Loan Documents. Arbitration shall be conducted under and governed by the Commercial Financial Disputes Arbitration Rules (the “Arbitration Rules”) of the American Arbitration Association (the “AAA”) and Title 9 of the U.S. Code. All arbitration hearings shall be conducted in the city of Tallahassee. The expedited procedures set forth in Rule 51 et seq. of the Arbitration Rules shall be applicable to claims less than $1,500,000. All applicable statutes of limitation shall apply to any Dispute. A judgment upon the award may be entered in any court having jurisdiction. The panel from which all arbitrators are selected shall be comprised of licensed attorneys. The single arbitrator selected for expedited procedure shall be a retired judge from the highest court of general jurisdiction, state or federal, of the state where the hearing will be conducted or if such person is not available to serve, the single arbitrator may be a licensed attorney. Notwithstanding the foregoing, this arbitration provision does not apply to disputes under or related to swap or hedging agreements.

10.17      Counterparts . This Agreement may be executed by one or more parties on any number of separate counterparts and all of such counterparts taken together shall be deemed to constitute one and the same instrument.

10.18      Entire Agreement . The Loan Documents embody the entire agreement between Borrower and Bank with respect to the Loans, and there are no oral or parol agreements existing between Bank and Borrower with respect to the Loans which are not expressly set forth in the Loan Documents.

10.19      Indemnification . The Borrower and the Guarantors hereby jointly and severally agree to and do hereby indemnify and defend the Bank, its affiliates, their successors and assigns and their respective directors, officer, employees and shareholders, and do hereby hold each of them harmless from and against, any loss, liability, lawsuit, proceeding, cost expense or damage (including reasonable in-house and outside counsel fees, whether suit is brought or not) arising from or otherwise relating to the closing, disbursement, administration, or repayment of the Loans, including without limitation: (i) the failure to make any payment to the Bank promptly when due, whether under the Notes evidencing the Loans or otherwise; (ii) the breach of any representations or warranties to the Bank contained in this agreement or in any other loan documents now or hereafter executed in connection with the Loans; or (iii) the violation of any

covenants or agreements made for the benefit of the Bank and contained in any of the loan documents; provided, however, that the foregoing indemnification shall not be deemed to cover

any loss which is finally determined by a court of competent jurisdiction to result solely from the Bank’s gross negligence or willful misconduct.

10.20      Notice and Cure Period . Notwithstanding any provision in this Loan Agreement, the Security Agreement, the Note or Loan Documents to the contrary, an event of default shall not be deemed to have occurred hereunder as to a non-monetary provision of this Loan Agreement unless and until the Borrower shall fail to cure and remedy said non-monetary breach or default within forty five (45) days after the Borrower has received written notice thereof from the Bank, and an event of default shall not be deemed to have occurred hereunder as to a monetary provision of the Loan Agreement unless and until the Borrower shall fail to cure and remedy said monetary breach or default within ten (10) days after the Borrower has received written notice thereof from the Bank.

10.21      WAIVER OF JURY TRIAL. UNLESS EXPRESSLY PROHIBITED BY APPLICABLE LAW, THE UNDERSIGNED HEREBY WAIVE THE RIGHT TO TRIAL BY JURY OF ANY MATTERS OR CLAIMS ARISING OUT OF THIS AGREEMENT OR ANY OF THE LOAN DOCUMENTS EXECUTED IN CONNECTION HEREWITH OR OUT OF THE CONDUCT OF THE RELATIONSHIP BETWEEN THE UNDERSIGNED AND BANK THIS PROVISION IS A MATERIAL INDUCEMENT FOR BANK TO MAKE THE LOAN AND ENTER INTO THIS AGREEMENT. FURTHER, THE UNDERSIGNED HEREBY CERTIFY THAT NO REPRESENTATIVE OR AGENT OF BANK, NOR BANK’S COUNSEL, HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT BANK WOULD NOT SEEK TO ENFORCE THIS WAIVER OR RIGHT TO JURY TRIAL PROVISION. NO REPRESENTATIVE OR AGENT OF BANK, NOR BANK’S COUNSEL, HAS THE AUTHORITY TO WAIVE, CONDITION OR MODIFY THIS PROVISION.

SIGNATURE PAGE

IN WITNESS WHEREOF, the Bank, Borrower and Guarantor(s) have caused this Agreement to be duly executed under seal all as of the date first above written.

BB&T

GUARANTY AGREEMENT

BRANCH BANKING AND TRUST COMPANY     Date: January 15, 2013

Dear Sirs:

As an inducement to Branch Banking and Trust Company (“Bank”), to extend credit to and to otherwise deal with The Goldfield Corporation, a Delaware corporation (“Borrower”), and in consideration thereof, the undersigned (and each of the undersigned jointly and severally if more than one) hereby absolutely and unconditionally guarantees to Bank and its successors and assigns the due and punctual payment of any and all notes, drafts, debts, obligations and liabilities, primary or secondary (whether by way of endorsement or otherwise), of Borrower, at any time, now or hereafter, incurred with or held by Bank, together with interest, as and when the same become due and payable, whether by acceleration or otherwise, in accordance with the terms of any such notes, drafts, debts, obligations or liabilities or agreements evidencing any such indebtedness, obligation or liability including all renewals, extensions and modifications thereof. The obligation of the undersigned is a guarantee of payment and not of collection.

The undersigned is Bank’s debtor for all indebtedness, obligations and liabilities for which this Guaranty is made, and Bank shall also at all times have a lien on and security interest in all stocks, bonds and other securities of the undersigned at any time in Bank’s possession and the same shall at Bank’s option be held, administered and disposed of as collateral to any such indebtedness, obligation or liability of the Borrower, and Bank shall also at all times have the right of set-off against any deposit account of the undersigned with Bank in the same manner and to the same extent that the right of set-off may exist against the Borrower.

It is understood that any such notes, drafts, debts, obligations and liabilities may be accepted or created by or with Bank at any time and from time to time without notice to the undersigned, and the undersigned hereby expressly waives presentment, demand, protest, and notice of dishonor of any such notes, drafts, debts, obligations and liabilities or other evidences of any such indebtedness, obligation or liability.

Bank may receive and accept from time to time any securities or other property as collateral to any such notes, drafts, debts, obligations and liabilities, and may surrender, compromise, exchange and release absolutely the same or any part thereof at any time without notice to the undersigned and without in any manner affecting the obligation and liability of the undersigned hereby created. The undersigned agrees that Bank shall have no obligation to protect, perfect, secure or insure any security interests, liens or encumbrances now or hereafter held for the indebtedness, obligations and liabilities for which this Guaranty is made.

This obligation and liability on the part of the undersigned shall be a primary, and not a secondary, obligation and liability, payable immediately upon demand without recourse first having been had by Bank against the Borrower or any other guarantor, person, firm or corporation, and without first

resorting to any property held by Bank as collateral security; and the undersigned hereby waives the benefits of all provisions of law, for stay or delay of

execution or sale of property or other satisfaction of judgment against the undersigned on account of obligation and liability hereunder until judgment be obtained therefor against the Borrower and execution thereon returned unsatisfied, or until it is shown that the Borrower has no property available for the satisfaction of the indebtedness, obligation or liability guaranteed hereby, or until any other proceedings can be had; and the undersigned hereby agrees to indemnify the Bank for all costs of collection, including but not limited to the costs of repossession, foreclosure, reasonable attorneys’ fees, and court costs incurred by the Bank in the event that the Bank should first be required by the undersigned to resort to any property held by the Bank or in which the Bank has a security interest or to obtain execution or other satisfaction of a judgment against the Borrower on account of Borrower’s obligation and liability for its indebtedness guaranteed hereby; and the undersigned further agrees that the undersigned is responsible for any obligation or debt, or portion thereof, of the Borrower to the Bank which has been paid by the Borrower to the Bank and which the Bank is subsequently required to return to the Borrower or a trustee for the Borrower in any bankruptcy or insolvency proceeding; and the undersigned further agrees that none of the undersigned shall have any right of subrogation, reimbursement or indemnity whatsoever, nor any right of recourse to security for the debts and obligations of the Borrower to Bank unless and until all of the debts and obligations of the Borrower to Bank have been paid in full. The undersigned hereby waives, to the extent avoidable under any provision of the Bankruptcy Code, any right arising upon payment by the undersigned of any obligation under this Guaranty to assert a claim against the bankruptcy estate of the Borrower.

This Guaranty is unlimited and applies to all indebtedness of Borrower to Bank, whether now existing or hereafter arising and howsoever evidenced.

To secure the payment of all obligations of the undersigned hereunder, the undersigned hereby grants a security interest and lien in the following goods and property owned by the undersigned:

Blanket lien on all machinery, equipment, and vehicles of Southeast Power Corporation (“Collateral”).

The undersigned hereby agrees to execute and deliver to Bank any security agreement, deed of trust, mortgage, UCC financing statement, or other document required by the Bank in order to protect or perfect its security interest or lien in the Collateral. This document shall constitute a security agreement under the Uniform Commercial Code of Florida (“Code”), and in addition to having all other legal rights and remedies, the Bank shall have all rights and remedies of a secured party under the Code.

This agreement shall inure to the benefit of Bank, its successors and assigns, and the owners and holders of any of the indebtedness, obligations and liabilities hereby guaranteed, and shall remain in force until a written notice revoking it has been received by Bank; but such revocation shall not release the undersigned from liability to Bank, its successors and assigns, or the owners and holders of any of the indebtedness, obligations and liabilities hereby guaranteed, for any indebtedness, obligation or liability of the Borrower which is hereby guaranteed and then in existence or from any renewals, extensions or modifications thereof in whole or in part, whether such renewals, extensions or modifications are made before or after such revocation, with or without notice to the undersigned. The undersigned waives presentment, demand, protest and

notices of every kind and assents to any one or more extensions, modifications, renewals or postponements of the time or amount of payment or any other indulgences given to Borrower. The undersigned shall be responsible for and shall reimburse the Bank for all costs and expenses (including reasonable attorneys’ fees) incurred by the Bank in connection with the enforcement of this Guaranty or the protection or preservation of any right or claim of the Bank in connection herewith, including without limitation costs and expenses incurred by the Bank in connection with its attempts to collect the indebtedness, obligations, and liabilities guaranteed hereby.

If the Borrower is a corporation, this instrument covers all indebtedness, obligations and liabilities to Bank purporting to be made or undertaken on behalf of such corporation by any such officer or agent of said corporation without regard to the actual authority of such officer or agent. The term “corporation” shall include associations of all kinds and all purported corporations, whether correctly and legally chartered and organized.

The undersigned covenants, warrants, and represents to the Bank that: (i) this Guaranty is enforceable against the undersigned in accordance with its terms; (ii) the execution and delivery of this Guaranty does not violate or constitute a breach of any agreement to which the undersigned is a party; (iii) that there is no litigation, claim, action or proceeding pending or, to the best knowledge of the undersigned, threatened against the undersigned which would materially adversely affect the financial condition of the undersigned or his ability to fulfill his obligations hereunder; (iv) that the undersigned has knowledge of the Borrower’s financial condition and affairs; and (v) unless otherwise required in a Loan Agreement, if applicable, as long as any Obligations remain outstanding or as long as Bank remains obligated to make advances, the undersigned shall furnish annually an updated financial statement in a form satisfactory to Bank, which, when delivered shall be the property of Bank.

This Guaranty is made in and shall be construed in accordance with the laws and judicial decisions of the State of Florida. The undersigned agrees that any dispute arising out of this Guaranty shall be adjudicated in either the state or federal courts of Florida and in no other forum. For that purpose, the undersigned hereby submits to the jurisdiction of the state and/or federal courts of Florida. The undersigned waives any defense that venue is not proper for any action brought in any federal or state court in the State of Florida.

WAIVER OF TRIAL BY JURY . UNLESS EXPRESSLY PROHIBITED BY APPLICABLE LAW, THE UNDERSIGNED HEREBY WAIVE THE RIGHT TO TRIAL BY JURY OF ANY MATTERS OR CLAIMS ARISING OUT OF THIS GUARANTY OR THE BORROWER’S NOTE(S), AND THE RELATED LOAN DOCUMENTS EXECUTED IN CONNECTION HEREWITH OR OUT OF THE CONDUCT OF THE RELATIONSHIP BETWEEN THE UNDERSIGNED AND BANK OR THE BORROWER AND THE BANK. THIS PROVISION IS A MATERIAL INDUCEMENT FOR BANK TO MAKE THE LOANS TO THE BORROWER. FURTHER, THE UNDERSIGNED HEREBY CERTIFY THAT NO REPRESENTATIVE OR AGENT OF BANK, NOR BANK’S COUNSEL, HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT BANK WOULD NOT SEEK TO ENFORCE THIS WAIVER OR RIGHT TO JURY TRIAL PROVISION IN THE EVENT OF LITIGATION. NO REPRESENTATIVE OR AGENT OF BANK, NOR BANK’S

COUNSEL HAS THE AUTHORITY TO WAIVE, CONDITION OR MODIFY THIS PROVISION.

Witness the signature and seal of each of the undersigned.

Loan Agreement Addendum

9660933120/00005

This Loan Agreement Addendum to a loan agreement dated the 17 ^th of April, 2012 for account number 9660933120 note 00005, in the original principal amount of $1,500,000 by and between BRANCH BANKING AND TRUST COMPANY (“Bank”), a North Carolina banking corporation and Southeast Power Corporation, a State of Florida corporation (“Borrower”), having its executive offices at Melbourne, Florida is made this 15 ^th day of January 2013 by and between BRANCH BANKING AND TRUST COMPANY, a North Carolina banking corporation (“Bank”) and Southeast Power Corporation, a State of Florida corporation (“Borrower”), having its executive offices at Melbourne, Florida.

Section V. FINANCIAL COVENANTS is amended as follows:

The paragraph beginning Tangible Net Worth is deleted and replaced with the following:

Tangible Net Worth. A minimum tangible net worth of not less than $18,000,000.00 as evidenced by Borrower’s consolidated annual audited financial statement as included in the Form 10-K beginning with its fiscal year ending December 31, 2012. Tangible Net Worth is defined as net worth, plus obligations contractually subordinated to debts owed to Bank, minus goodwill, contract rights, and assets representing claims on stockholders or affiliated entities.

All other conditions of the loan agreement are to remain unchanged including the paragraph beginning Debt to Tangible Net Worth following the section replaced in this addendum.

SIGNATURE PAGE

IN WITNESS WHEREOF, the Bank, Borrower and Guarantor(s) have caused this Agreement to be duly executed under seal all as of the date first above written.

Loan Agreement Addendum

9660933120/00007

This Loan Agreement Addendum to a loan agreement dated the 17 ^th of September, 2012 for account number 9660933120 note 00007, in the original principal amount of $4,250,000 by and between BRANCH BANKING AND TRUST COMPANY (“Bank”), a North Carolina banking corporation and Southeast Power Corporation, a State of Florida corporation (“Borrower”), having its executive offices at Melbourne, Florida is made this 15 ^th day of January 2013 by and between BRANCH BANKING AND TRUST COMPANY, a North Carolina banking corporation (“Bank”) and Southeast Power Corporation, a State of Florida corporation (“Borrower”), having its executive offices at Melbourne, Florida.

Section V. FINANCIAL COVENANTS is amended as follows:

 

The paragraph beginning Tangible Net Worth is deleted and replaced with the following:

Tangible Net Worth. A minimum tangible net worth of not less than $18,000,000.00 as evidenced by Borrower’s consolidated annual audited financial statement as included in the Form 10-K beginning with its fiscal year ending December 31, 2012. Tangible Net Worth is defined as net worth, plus obligations contractually subordinated to debts owed to Bank, minus goodwill, contract rights, and assets representing claims on stockholders or affiliated entities.

All other conditions of the loan agreement are to remain unchanged including the paragraph beginning Debt to Tangible Net Worth following the section replaced in this addendum.

SIGNATURE PAGE

IN WITNESS WHEREOF, the Bank, Borrower and Guarantor(s) have caused this Agreement to be duly executed under seal all as of the date first above written.