SECURITIES AND EXCHANGE COMMISSION

Washington, D. C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)           June 24, 2005
                                                -------------------------------

Commission         Registrant, State of Incorporation,       I.R.S. Employer
File Number        Address and Telephone Number             Identification No.
-----------        ----------------------------------       -------------------
001-11229          Mississippi Power Company                    64-0205820
                   (A Mississippi Corporation)
                   2992 West Beach
                   Gulfport, Mississippi 39501
                   (228) 864-1211

The address of the registrant has not changed since the last report.

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

[ ] Written communications pursuant to Rule 425 under the Securities Act


(17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act


(17 CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))


2

Item 1.01. Entry into a Material Definitive Agreement.

On June 30, 2005, the first mortgage bond indenture of Mississippi Power Company (the "Company") was defeased by paying to Deutsche Bank Trust Company Americas, the Trustee, an amount representing the last outstanding obligations on the Company's first mortgage bonds. As a result of the defeasance, there are no longer any first mortgage bond liens on the Company's property and the Company no longer has to comply with the covenants and restrictions of the first mortgage bond indenture.

Item 8.01. Other Events.

On June 24, 2005, the Company entered into an Underwriting Agreement covering the issue and sale of $30,000,000 aggregate principal amount of its Series G 5.40% Senior Notes due July 1, 2035 (the "Series G Senior Notes"). The Series G Senior Notes were registered under the Securities Act of 1933, as amended, pursuant to the shelf registration statement (Registration Statement Nos. 333-108156, 333-108156-01 and 333-108156-02) of the Company.

Item 9.01. Financial Statements and Exhibits.

(c) Exhibits.

 1.3         Underwriting Agreement relating to the Series G
             Senior Notes, dated June 24, 2005, between the
             Company and Banc of America Securities LLC, as the
             Underwriter.

 4.2         Seventh Supplemental Indenture to Senior Note
             Indenture dated as of June 30, 2005, providing for
             the issuance of the Series G Senior Notes.

 4.12        Form of Series G Senior Notes (included in Exhibit
             4.2 above).

 4.16        Supplemental Indenture to First Mortgage Bond
             Indenture dated as of June 30, 2005 between the
             Company and Deutsche Bank Trust Company Americas,
             as trustee.

 5.1         Opinion of Troutman Sanders LLP.

12.1         Computation of ratio of earnings to fixed charges.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date:     June 30, 2005                  MISSISSIPPI POWER COMPANY


                                         By /s/  Wayne Boston
                                                 Wayne Boston
                                                 Assistant Secretary


$30,000,000 Series G 5.40% Senior Notes

due July 1, 2035

MISSISSIPPI POWER COMPANY

UNDERWRITING AGREEMENT

June 24, 2005

Banc of America Securities LLC
214 N. Tryon Street
Charlotte, North Carolina 28255

Ladies and Gentlemen:

Mississippi Power Company, a Mississippi corporation (the "Company"), confirms its agreement (the "Agreement") with you (the "Underwriter") with respect to the sale by the Company and the purchase by the Underwriter of $30,000,000 aggregate principal amount of the Series G 5.40% Senior Notes due July 1, 2035 (the "Senior Notes").

The Company understands that the Underwriter proposes to make a public offering of the Senior Notes as soon as the Underwriter deems advisable after this Agreement has been executed and delivered. The Senior Notes will be issued pursuant to an indenture, dated as of May 1, 1998 (the "Base Indenture"), between the Company and Deutsche Bank Trust Company Americas (formerly known as Bankers Trust Company), as trustee (the "Trustee"), as heretofore supplemented and amended and as to be further supplemented and amended by a seventh supplemental indenture, dated as of June 30, 2005, to the Base Indenture relating to the Senior Notes (the "Supplemental Indenture" and, together with the Base Indenture and any other amendments or supplements thereto, the "Indenture"), between the Company and the Trustee.

SECTION 1. REPRESENTATIONS AND WARRANTIES. The Company represents and warrants to the Underwriter as follows:

(a) A registration statement on Form S-3 (File Nos. 333-108156, 333-108156-01 and 333-108156-02), in respect of the Senior Notes and certain other securities has been prepared and filed in accordance with the provisions of the Securities Act of 1933, as amended (the "1933 Act"), with the Securities and Exchange Commission (the "Commission"); such registration statement and any post-effective amendment thereto, each in the form heretofore delivered or to be delivered to the Underwriter, has been declared effective by

the  Commission  in such  form  (except that  copies of the
registration  statement  and  any  post-effective  amendment
delivered to the Underwriter  need not include exhibits but
shall  include  all  documents   incorporated  by  reference

therein); and no stop order suspending the effectiveness of such registration statement has been issued and no proceeding for that purpose has been initiated or, to the best knowledge of the Company, threatened by the Commission (any preliminary prospectus included in such registration statement or filed with the Commission pursuant to Rule 424(a) of the rules and regulations of the Commission under the 1933 Act, being hereinafter called a "Preliminary Prospectus"); such registration statement, as it became effective, including the exhibits thereto and all documents incorporated by reference therein pursuant to Item 12 of Form S-3 at the time such registration statement became effective, being hereinafter called the "Registration Statement"; the prospectus relating to the Senior Notes, in the form in which it was included in the Registration Statement at the time it became effective, being hereinafter called the "Prospectus"; any reference herein to any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include the documents incorporated by reference therein pursuant to Item 12 of Form S-3 under the 1933 Act, as of the date of such Preliminary Prospectus or Prospectus, as the case may be; any reference to any amendment or supplement to any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include any documents filed after the date of such Preliminary Prospectus or Prospectus, as the case may be, under the Securities Exchange Act of 1934, as amended (the "1934 Act"), and incorporated by reference in such Preliminary Prospectus or Prospectus, as the case may be; any reference to any amendment to the Registration Statement shall be deemed to refer to and include any annual report of the Company filed pursuant to
Section 13(a) or 15(d) of the 1934 Act after the effective date of the Registration Statement that is incorporated by reference in the Registration Statement and the Prospectus as amended or supplemented in final form by a prospectus supplement relating to the Senior Notes in the form in which it is filed with the Commission, pursuant to Rule 424(b) under the 1933 Act in accordance with Section 3(f) hereof, including any documents incorporated by reference therein as of the date of such filing, being hereinafter called the "Final Supplemented Prospectus".

(b) The documents incorporated by reference in the Registration Statement or Prospectus, when they were filed with the Commission, complied in all material respects with the applicable provisions of the 1934 Act and the rules and regulations of the Commission thereunder, and as of such time of filing, when read together with the Prospectus, none of such documents contained an untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; and any further documents so filed and incorporated by reference in the Prospectus or any further amendment or supplement thereto, when such documents are filed with the Commission, will comply in all material respects with the applicable provisions of the 1934 Act and the rules and regulations of the Commission thereunder and, when read together with the Prospectus as it otherwise may be amended or supplemented, will not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading, except that the Company makes no warranty or representation to the Underwriter with respect to: (A) any statements or omissions made in reliance upon and in conformity with information furnished in writing to the Company by the Underwriter expressly for use in the Final Supplemented Prospectus or (B) any information set forth in the Final Supplemented Prospectus under the caption "Description of the Series G Senior Notes - Book-Entry Only Issuance - The Depository Trust Company".

(c) The Registration Statement, the Prospectus and the Final Supplemented Prospectus comply, and any further amendments or supplements to the Registration Statement or the Prospectus, when any such post-effective amendments are declared effective or supplements are filed with the Commission, as the case may be, will comply, in all material respects with the applicable provisions of the 1933 Act, the 1934 Act, the 1939 Act (as hereinafter defined) and the

General Rules and  Regulations of the Commission  thereunder
and do not and will not, (i) as of the applicable  effective
date as to the  Registration  Statement  and  any  amendment

thereto and (ii) as of the date of the Final Supplemented Prospectus and any Prospectus as further amended or supplemented, contain an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein not misleading in the case of the Registration Statement and any amendment thereto, and, in the light of the circumstances under which they were made, not misleading in the case of the Final Supplemented Prospectus and any Prospectus as further amended or supplemented; except that the Company makes no warranties or representations with respect to (A) that part of the Registration Statement which shall constitute the Statements of Eligibility (Form T-1) under the Trust Indenture Act of 1939, as amended (the "1939 Act"), (B) statements or omissions made in the Registration Statement or the Final Supplemented Prospectus in reliance upon and in conformity with information furnished in writing to the Company by the Underwriter expressly for use therein or (C) any information set forth in the Final Supplemented Prospectus under the caption "Description of the Series G Senior Notes - Book-Entry Only Issuance - The Depository Trust Company".

(d) With respect to the Registration Statement, the conditions for use of Form S-3, as set forth in the General Instructions thereof, have been satisfied.

(e) Since the respective dates as of which information is given in the Registration Statement and the Final Supplemented Prospectus, except as otherwise stated therein, there has been no material adverse change in the business, properties or financial condition of the Company.

(f) The Company is a corporation duly organized and existing under the laws of the State of Mississippi, is duly qualified to carry on its business as a foreign corporation under the laws of the State of Alabama, and has due corporate authority to carry on the public utility business in which it is engaged and to own and operate the properties used by it in such business, to enter into and perform its obligations under this Agreement and the Indenture and to issue and sell the Senior Notes to the Underwriter.

(g) This Agreement has been duly authorized, executed and delivered by the Company.

(h) The Indenture has been duly authorized by the Company and, on the Closing Date (as hereinafter defined), will have been duly executed and delivered by the Company, and, assuming due authorization, execution and delivery of the Indenture by the Trustee, the Indenture will, on the Closing Date, constitute a valid and binding obligation of the Company, enforceable against the Company in accordance with its terms except to the extent that enforcement thereof may be limited by (1) bankruptcy, insolvency, reorganization, receivership, liquidation, fraudulent conveyance, moratorium or other similar laws affecting creditors' rights generally or (2) general principles of equity (regardless of whether enforcement is considered in a proceeding at law or in equity) (the "Enforceability Exceptions"); the Indenture will conform in all material respects to all statements relating thereto contained in the Final Supplemented Prospectus; and, on the Closing Date, the Indenture will have been duly qualified under the 1939 Act.

(i) The issuance and delivery of the Senior Notes have been duly authorized by the Company and, on the Closing Date, the Senior Notes will have been duly executed by the Company and, when authenticated in the manner provided for in the Indenture and delivered against payment therefor as described in the Final Supplemented Prospectus, will constitute valid and legally binding obligations of the Company, enforceable against the Company in accordance with their terms, except to the extent that enforcement thereof may be limited by the Enforceability Exceptions, will be in the form contemplated by, and entitled to the benefits of,

the Indenture  and will conform in all material  respects to
all statements  relating  thereto in the Final  Supplemented
Prospectus.

(j) The execution, delivery and performance by the Company of this Agreement, the Indenture and the Senior Notes and the consummation by the Company of the transactions contemplated herein and therein and compliance by the Company with its obligations hereunder and thereunder shall have been duly authorized by all necessary corporate action on the part of the Company and do not and will not result in any violation of the charter or bylaws of the Company, and do not and will not conflict with, or result in a breach of any of the terms or provisions of, or constitute a default under, or result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of the Company under (A) any contract, indenture, mortgage, loan agreement, note, lease or other agreement or instrument to which the Company is a party or by which it may be bound or to which any of its properties may be subject (except for conflicts, breaches or defaults which would not, individually or in the aggregate, be materially adverse to the Company or materially adverse to the transactions contemplated by this Agreement), or (B) any existing

applicable law, rule, regulation,  judgment, order or decree
of any government,  governmental  instrumentality  or court,
domestic   or   foreign,   or   any   regulatory   body   or
administrative  agency  or other  governmental  body  having

jurisdiction over the Company, or any of its properties.

(k) No authorization, approval, consent or order of any court or governmental authority or agency is necessary in connection with the issuance and sale by the Company of the Senior Notes or the transactions by the Company contemplated in this Agreement, except (A) such as may be required under the 1933 Act or the rules and regulations thereunder; (B) such as may be required under the Public Utility Holding Company Act of 1935, as amended; (C) the qualification of the Indenture under the 1939 Act; and (D) such consents,

approvals,  authorizations,  registrations or qualifications
as may be  required  under  state  securities  or "blue sky"
laws.

(l) The financial statements incorporated by reference in the Registration Statement and the Final Supplemented Prospectus, together with the related schedules and notes, present fairly, in all material respects, the financial position, results of operations and cash flows of the Company as of and for the dates indicated; said financial statements have been prepared in conformity with accounting principles generally accepted in the United States applied on a consistent basis (except that the unaudited financial statements may be subject to normal year-end adjustments) throughout the periods involved and necessarily include amounts that are based on the best estimates and judgments of management. The selected financial data and the summary

financial  information  included  in the Final  Supplemented
Prospectus  present fairly the information shown therein and
have been  compiled on a basis  consistent  with that of the

audited and unaudited financial statements incorporated by reference in the Registration Statement.

SECTION 2. SALE AND DELIVERY TO THE UNDERWRITER; CLOSING.

(a) On the basis of the representations and warranties herein contained and subject to the terms and conditions herein set forth, the Company agrees to sell to the Underwriter, and the Underwriter agrees to purchase from the Company, the Senior Notes at a price equal to 98.624% of the principal amount thereof.

(b) Payment of the purchase price and delivery of certificates for the Senior Notes shall be made at the offices of Troutman Sanders LLP, 405 Lexington Avenue, New York, New York at 10:00 A.M., New York time, on June 30, 2005 or such other time, place or date as shall be agreed upon by the Underwriter and the Company (such time and date of payment and delivery being herein called the "Closing Date"). Payment shall be made to the Company by wire transfer in federal funds at the Closing Date against delivery of the Senior Notes to the Underwriter. It is understood that the Underwriter will accept delivery of, receipt for, and make payment of the principal amount of the Senior Notes which it has agreed to purchase.

The delivery of the Senior Notes shall be made in fully registered form, registered in the name of CEDE & CO., to the offices of The Depository Trust Company in New York, New York or its designee, and the Underwriter shall accept such delivery.

The certificate(s) for the Senior Notes will be made available for examination by the Underwriter not later than 12:00 Noon, New York time, on the last business day prior to the Closing Date.

SECTION 3. COVENANTS OF THE COMPANY. The Company covenants with the Underwriter as follows:

(a) The Company, on or prior to the Closing Date, will deliver to the Underwriter conformed copies of the Registration Statement as originally filed and of all amendments thereto, heretofore or hereafter made, including any post-effective amendment (in each case including all exhibits filed therewith, and including unsigned copies of each consent and certificate included therein or filed as an exhibit thereto, except exhibits incorporated by reference, unless specifically requested). As soon as the Company is advised thereof, it will advise the Underwriter orally of the issuance of any stop order under the 1933 Act with respect to the Registration Statement, or the institution of any proceedings therefor, of which the Company shall have received notice, and will use its best efforts to prevent the issuance of any such stop order and to secure the prompt removal thereof, if issued. The Company will deliver to the Underwriter sufficient conformed copies of the Registration Statement, the Prospectus and the Final Supplemented Prospectus and of all supplements and amendments thereto (in each case without exhibits) and, from time to time, as many copies of the Prospectus and the Final Supplemented Prospectus as the Underwriter may reasonably request for the purposes contemplated by the 1933 Act or the 1934 Act.

(b) The Company will furnish the Underwriter with copies of each amendment and supplement to the Final Supplemented Prospectus relating to the offering of the Senior Notes in such quantities as the Underwriter may from time to time reasonably request. If, during the period (not exceeding nine months) when the delivery of a prospectus shall be required by law in connection with the sale of any Senior Notes by an Underwriter, any event relating to or affecting the Company, or of which the Company shall be advised in writing by the Underwriter, shall occur, which in the opinion of the Company or of Underwriter's counsel should be set forth in a supplement to or an amendment of the Final

Supplemented   Prospectus in  order to make the  Final
Supplemented  Prospectus  not misleading in the light of the
circumstances  when it is  delivered, or if for  any other

reason it shall be necessary during such period to amend or supplement the Final Supplemented Prospectus or to file under the 1934 Act any document incorporated by reference in

the  Preliminary  Prospectus  or the Prospectus in order to
comply  with  the  1933 Act or the  1934  Act, the  Company
forthwith  will  (i)  notify  the  Underwriter  to  suspend
solicitation  of  purchases  of the Senior Notes and (ii) at

its expense, make any such filing or prepare and furnish to the Underwriter a reasonable number of copies of a supplement or supplements or an amendment or amendments to the Final Supplemented Prospectus which will supplement or amend the Final Supplemented Prospectus so that, as supplemented or amended, it will not contain any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances when the Final Supplemented Prospectus is delivered, not misleading or which will effect any other necessary compliance. In case the Underwriter is required to deliver a prospectus in connection with the sale of any Senior Notes after the expiration of the period specified in the preceding sentence, the Company, upon the request of the Underwriter, will furnish to the Underwriter at the expense of the Underwriter, a reasonable quantity of a supplemented or amended prospectus, or supplements or amendments to the Final Supplemented Prospectus, complying with Section 10(a) of the 1933 Act. During the period specified in the second sentence of this subsection, the Company will continue to prepare and file with the Commission on a timely basis all documents or amendments required under the 1934 Act and the rules and regulations thereunder; provided, that the Company shall not file such documents or amendments without also furnishing copies thereof prior to such filing to the Underwriter and Dewey Ballantine LLP.

(c) The Company will endeavor, in cooperation with the Underwriter, to qualify the Senior Notes for offering and sale under the applicable securities laws of such states and the other jurisdictions of the United States as the Underwriter may designate; provided, however, that the Company shall not be obligated to qualify as a foreign corporation in any jurisdiction in which it is not so qualified or to file a consent to service of process or to file annual reports or to comply with any other requirements in connection with such qualification deemed by the Company to be unduly burdensome.

(d) The Company will make generally available to its security holders as soon as practicable but not later than 45 days after the close of the period covered thereby, an earnings statement of the Company (in form complying with the provisions of Rule 158 of the rules and regulations under the 1933 Act) covering a twelve-month period beginning not later than the first day of the Company's fiscal quarter next following the "effective date" (as defined in Rule 158) of the Registration Statement.

(e) During a period of 15 days from the date of this Agreement, the Company will not, without the Underwriter's

prior written consent,  directly or indirectly,  sell, offer
to sell,  grant any  option  for the sale of,  or  otherwise
dispose  of, any Senior  Notes or any  security  convertible

into or exchangeable into or exercisable for the Senior Notes or any debt securities substantially similar to the Senior Notes (except for the Senior Notes issued pursuant to this Agreement). The Underwriter agrees that commercial paper or other debt securities with scheduled maturities of less than one year are not subject to this Section 3(e).

(f) As soon as practicable after the date of this Agreement, and in any event within the time prescribed by Rule 424 under the 1933 Act, the Company will file the Final Supplemented Prospectus with the Commission and will advise the Underwriter of such filing and will confirm such advice in writing.

SECTION 4. PAYMENT OF EXPENSES. The Company will pay all expenses incidental to the performance of its obligations under this Agreement, including but not limited to, the expenses of (i) the printing and filing of the Registration Statement as originally filed and of each amendment thereto,
(ii) the preparation, issuance and delivery of the certificate(s) for the Senior Notes, (iii) the fees and disbursements of the Company's counsel and accountants, (iv) the qualification of the Senior Notes under securities laws in accordance with the provisions of Section 3(c) hereof, including filing fees and the reasonable fees and disbursements of counsel for the Underwriter in connection therewith and in connection with the preparation of any blue sky survey (such fees and disbursements of counsel shall not exceed $3,500), (v) the printing and delivery to the Underwriter of copies of the Registration Statement as originally filed and of each amendment thereto and of the Prospectus, the Final Supplemented Prospectus and any amendments or supplements thereto, (vi) the printing and delivery to the Underwriter of copies of any blue sky survey, (vii) the fee of the National Association of Securities Dealers, Inc. in connection with its review of the offering contemplated by this Agreement, if applicable, (viii) the fees and expenses of the Trustee, including the fees and disbursements of counsel for the Trustee in connection with the Indenture and the Senior Notes, (ix) any fees payable in connection with the rating of the Senior Notes, (x) the cost and charges of any transfer agent or registrar and (xi) the cost of qualifying the Senior Notes with The Depository Trust Company.

Except as otherwise provided in Section 9 hereof, the Underwriter shall pay all other expenses incurred by it in connection with its offering of the Senior Notes including fees and disbursements of its counsel, Dewey Ballantine LLP.

SECTION 5. CONDITIONS OF UNDERWRITER'S OBLIGATIONS. The obligations of the Underwriter to purchase and pay for the Senior Notes are subject to the following conditions:

(a) No stop order suspending the effectiveness of the Registration Statement shall be in effect on the Closing Date and no proceedings for that purpose shall be pending before, or to the knowledge of the Company threatened by, the Commission on such date. If filing of the Final Supplemented Prospectus, or any supplement thereto, is required pursuant to Rule 424, the Final Supplemented Prospectus, and any such supplement, shall have been filed in the manner and within the time period required by Rule 424.

(b) Any required orders of the Commission permitting the transactions contemplated hereby substantially in accordance with the terms and conditions hereof shall be in full force and effect and shall contain no provision unacceptable to the Underwriter or the Company (but all provisions of such order or orders heretofore entered, copies of which shall be delivered to the Underwriter prior to the Closing Date, are deemed acceptable to the Underwriter and the Company and all provisions of such order or orders hereafter entered shall be deemed acceptable to the Underwriter and the Company unless within 24 hours after receiving a copy of any such order any party to this Agreement shall give notice to the other party to the effect that such order contains an unacceptable provision).

(c) On the Closing Date the Underwriter shall have received:

(1) The opinion, dated the Closing Date, of Balch & Bingham LLP, general counsel for the Company, substantially in the form attached hereto as Schedule I-A.

(2) The opinion, dated the Closing Date, of Troutman Sanders LLP, counsel for the Company, substantially in the form attached hereto as Schedule I-B.

(3) The opinion, dated the Closing Date, of White & Case LLP, counsel to the Trustee, substantially in the form attached hereto as Schedule II.

(4) The opinion, dated the Closing Date, of Dewey Ballantine LLP, counsel for the Underwriter, substantially in the form attached hereto as Schedule III.

(d) At the Closing Date, there shall not have been, since the date hereof or since the respective dates as of which information is given in the Registration Statement and the Final Supplemented Prospectus, any material adverse change in the business, properties or financial condition of the Company, whether or notarising in the ordinary course of business, and the Underwriter shall have received a certificate of the President or any Vice President of the Company, and dated as of the Closing Date, to the effect that (i) there has been no such material adverse change, (ii) the representations and warranties in Section 1 hereof are true and correct with the same force and effect as though expressly made at and as of the Closing Date, (iii) the Company has complied with all agreements and satisfied all conditions on its part to be performed or satisfied on or prior to the Closing Date, and (iv) no stop order suspending the effectiveness of the Registration Statement has been issued and no proceedings for that purpose have been initiated or, to the knowledge of the Company, threatened by the Commission.

(e) On the Closing Date, the Underwriter shall have received from Deloitte & Touche LLP a letter dated the Closing Date to the effect that: (A) they are an independent registered public accounting firm with respect to the Company within the meaning of the 1933 Act and the rules and regulations under the 1933 Act; (B) in their opinion, the financial statements audited by them and incorporated by reference in the Final Supplemented Prospectus comply as to form in all material respects with the applicable accounting requirements of the 1934 Act and the rules and regulations under the 1934 Act; and (C) on the basis of certain limited procedures performed through a specified date not more than five business days prior to the date of such letter, namely (i) reading the minute books of the Company; (ii) performing the procedures specified by the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB") for a review of interim financial statement information as described in SAS 100, "Interim Financial Information", on the unaudited financial statements, if any, of the Company incorporated by reference in the Final Supplemented Prospectus and on the latest available unaudited financial statements of the Company, if any, for any calendar quarter subsequent to the date of those incorporated by reference in the Final Supplemented Prospectus; and (iii) making inquiries of certain officials of the Company who have responsibility for financial and accounting matters regarding such unaudited financial statements or any specified unaudited amounts derived therefrom (it being understood that the foregoing procedures do not constitute an audit performed in accordance with generally accepted auditing standards and they would not necessarily reveal matters of significance with respect to the comments made in such letter, and accordingly that Deloitte & Touche LLP make no representations as to the sufficiency of such procedures for the Underwriter's purposes), nothing came to their attention that caused them to believe that: (1) any material modifications should be made to the unaudited condensed financial statements, if any, incorporated by reference in the Final Supplemented Prospectus, for them to be in conformity with generally accepted accounting principles; (2) such unaudited condensed financial statements do not comply as to form in all material respects with the applicable accounting requirements of the 1934 Act as it applies to Form 10-Q and the related published rules and regulations thereunder; (3) the unaudited amounts for Operating Revenues, Earnings Before Income Taxes and Net Income After Dividends on Preferred Stock and the unaudited Ratio of Earnings to Fixed Charges set forth in the Final Supplemented Prospectus do not agree with the amounts set forth in or derived from the unaudited financial statements for the same period included or incorporated by reference in the Registration Statement; (4) as of a specified date not more than five business days prior to the date of delivery of such letter, there has been any change in the capital stock or long-term debt of the Company or any decrease in net assets as compared with amounts shown in the latest unaudited balance sheet incorporated by reference in the Final Supplemented Prospectus, except in each case for changes or decreases which (i) the Final Supplemented Prospectus discloses have occurred or may occur, (ii) are occasioned by the declaration of dividends, (iii) are occasioned by draw-downs and regularly scheduled payments of capitalized lease obligations,
(iv) are occasioned by the purchase or redemption of bonds or stock to satisfy mandatory or optional redemption provisions relating thereto,
(v) are occasioned by reclassification of current maturities of long-term debt or (vi) are disclosed in such letter; and (5) the unaudited amounts for Operating Revenues, Earnings Before Income Taxes and Net Income After Dividends on Preferred Stock and the unaudited Ratio of Earnings to Fixed Charges for any calendar quarter subsequent to those set forth in (3) above, which, if available, shall be set forth in such letter, do not agree with the amounts set forth in or derived from the unaudited financial statements for the same period or were not determined on a basis substantially consistent with that of the corresponding audited amounts or ratios included or incorporated by reference in the Final Supplemented Prospectus.

(f) On the Closing Date, counsel for the Underwriter shall have been furnished with such documents and opinions as it may reasonably require for the purpose of enabling it to pass upon the issuance and sale of the Senior Notes as herein contemplated and related proceedings, or in order to evidence the accuracy of any of the representations or warranties, or the fulfillment of any of the conditions, herein contained; and all proceedings taken by the Company in connection with the issuance and sale of the Senior Notes as herein contemplated shall be satisfactory in form and substance to the Underwriter and Dewey Ballantine LLP, counsel for the Underwriter.

(g) No amendment or supplement to the Registration Statement or the Final Supplemented Prospectus filed subsequent to the date of this Agreement (including any filing made by the Company pursuant to Section 13 or 14 of the 1934 Act) shall be unsatisfactory in form to Dewey Ballantine LLP or shall contain information (other than with respect to an amendment or supplement relating solely to the activity of the Underwriter) which, in the reasonable judgment of the Underwriter, shall materially impair the marketability of the Senior Notes.

(h) The Company shall have performed its obligations when and as provided under this Agreement.

If any condition specified in this Section shall not have been fulfilled when and as required to be fulfilled, this Agreement may be terminated by the Underwriter by notice to the Company at any time prior to the Closing Date, and such termination shall be without liability of any party to any other party except as provided in Sections 4, 7 and 9(b) hereof.

SECTION 6. CONDITIONS OF THE OBLIGATIONS OF THE COMPANY.

The obligations of the Company shall be subject to the conditions set forth in the first sentence of Section 5(a) and in Section 5(b). In case such conditions shall not have been fulfilled, this Agreement may be terminated by the Company by mailing or delivering written notice thereof to the Underwriter. Any such termination shall be without liability of any party to any other party except as otherwise provided in Sections 4, 7 and 9(b) hereof.

SECTION 7. INDEMNIFICATION.

(a) The Company agrees to indemnify and hold harmless the Underwriter and each person, if any, who controls the Underwriter within the meaning of Section 15 of the 1933 Act or Section 20(a) of the 1934 Act, against any and all losses, claims, damages or liabilities, joint or several, to which they or any of them may become subject under the 1933 Act, 1934 Act or otherwise, and to reimburse the Underwriter and such controlling person or persons, if any, for any legal or other expenses incurred by them in connection with defending any actions, insofar as such losses, claims, damages, liabilities or actions arise out of or are based upon any untrue statement or alleged untrue statement of a material fact contained in any Preliminary Prospectus, the Registration Statement, the Prospectus or the Final Supplemented Prospectus or, if the Company shall furnish to the Underwriter any amendments or any supplements thereto, or shall make any filings pursuant to Section 13 or 14 of the 1934 Act which are incorporated by reference therein, in any Preliminary Prospectus, the Registration Statement, the Prospectus or the Final Supplemented Prospectus as so amended or supplemented, or arise out of or are based upon any omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, except insofar as such losses, claims, damages, liabilities or actions arise out of or are based upon any such untrue statement or alleged untrue statement or omission or alleged omission which was made in such Registration Statement, Preliminary Prospectus, Prospectus or Final Supplemented Prospectus in reliance upon and in conformity with information furnished in writing to the Company by the Underwriter for use therein and except that this indemnity with respect to the Preliminary Prospectus, the Prospectus or the Final Supplemented Prospectus, if the Company shall have furnished any amendment or supplement thereto, shall not inure to the benefit of the Underwriter (or of any person controlling the Underwriter) on account of any losses, claims, damages, liabilities or actions arising from the sale of the Senior Notes to any person if a copy of the Preliminary Prospectus, the Prospectus or the Final Supplemented Prospectus (exclusive of documents incorporated therein by reference pursuant to Item 12 of Form S-3), as the same may then be amended or supplemented, shall not have been sent or given by or on behalf of the Underwriter to such person with or prior to the written confirmation of the sale involved and the untrue statement or alleged untrue statement or omission or alleged omission was corrected in the Preliminary Prospectus, the Prospectus or the Final Supplemented Prospectus as supplemented or amended at the time of such confirmation. The Underwriter agrees, within ten days after the receipt by it of notice of the commencement of any action in respect of which indemnity may be sought by it, or by any person controlling it, from the Company on account of its agreement contained in this Section 7, to notify the Company in writing of the commencement thereof but the omission of the Underwriter so to notify the Company of any such action shall not release the Company from any liability which it may have to the Underwriter or to such controlling person otherwise than on account of the indemnity agreement contained in this Section 7. In case any such action shall be brought against the Underwriter or any such person controlling the Underwriter and the Underwriter shall notify the Company of the commencement thereof as above provided, the Company shall be entitled to participate in (and, to the extent that it shall wish, including the selection of counsel, to direct) the defense thereof, at its own expense. In case the Company elects to direct such defense and select such counsel, the Underwriter or controlling person shall have the right to employ its own counsel, but, in any such case, the fees and expenses of such counsel shall be at the expense of the Underwriter or such controlling person unless the employment of such counsel has been authorized in writing by the Company in connection with defending such action. No indemnifying party shall, without the written consent of the indemnified party, effect the settlement or compromise of, or consent to the entry of any judgment with respect to, any pending or threatened action or claim in respect of which indemnification may be sought hereunder (whether or not the indemnified party is an actual or potential party to such action or claim) unless such settlement, compromise or judgment (i) includes an unconditional release of the indemnified party from all liability arising out of such action or claim and (ii) does not include any statement as to, or an admission of, fault, culpability or a failure to act, by or on behalf of any indemnified party. In no event shall any indemnifying party have any liability or responsibility in respect of the settlement or compromise of, or consent to the entry of any judgment with respect to, any pending or threatened action or claim effected without its prior written consent.

(b) The Underwriter agrees to indemnify and hold harmless the Company, its directors and such of its officers who have signed the Registration Statement and each person, if any, who controls the Company within the meaning of Section 15 of the 1933 Act or Section 20(a) of the 1934 Act to the same extent and upon the same terms as the indemnity agreement of the Company set forth in Section 7(a) hereof, but only with respect to alleged untrue statements or omissions made in the Registration Statement, the Preliminary Prospectus, the Prospectus or the Final Supplemented Prospectus, or such documents as amended or supplemented, in reliance upon and in conformity with information furnished in writing to the Company by the Underwriter for use therein.

SECTION 8. REPRESENTATIONS, WARRANTIES AND AGREEMENTS TO SURVIVE DELIVERY.

All representations, warranties and agreements contained in this Agreement, or contained in certificates of officers of the Company submitted pursuant hereto, shall remain operative and in full force and effect, regardless of any investigation made by or on behalf of the Underwriter or controlling person, or by, or on behalf of the Company and shall survive delivery of the Senior Notes to the Underwriter.

SECTION 9. TERMINATION OF AGREEMENT.

(a) The Underwriter may terminate this Agreement, by notice to the Company, at any time at or prior to the Closing Date if (i) trading in securities on the New York Stock Exchange shall have been generally suspended or there shall have been a material disruption in settlement of securities generally, (ii) minimum or maximum ranges for prices shall have been generally established on the New York Stock Exchange by the Commission or by the New York Stock Exchange, (iii) a general banking moratorium shall have been declared by federal or New York State authorities, or (iv) there shall have occurred any outbreak or escalation of major hostilities in which the United States is involved, any declaration of war by the United States Congress or any other substantial national or international calamity, crisis or emergency (including, without limitation, acts of terrorism) affecting the United States, in any such case provided for in clauses (i) through (iv) with the result that, in the reasonable judgment of the Underwriter, the marketability of the Senior Notes shall have been materially impaired.

(b) If this Agreement shall be terminated by the Underwriter pursuant to subsection (a) above or because of any failure or refusal on the part of the Company to comply with the terms or to fulfill any of the conditions of this Agreement, or if for any reason the Company shall be unable to perform its obligations under this Agreement, then in any such case, the Company will reimburse the Underwriter for the reasonable fees and disbursements of Dewey Ballantine LLP and for the out of pocket expenses (in an amount not exceeding $10,000) reasonably incurred by the Underwriter in making preparations for the purchase, sale and delivery of the Senior Notes and, upon such reimbursement, the Company shall be absolved from any further liability hereunder, except as provided in Sections 4 and 7.

SECTION 10. NOTICES. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given if mailed or transmitted by any standard form of telecommunication. Notices to the Underwriter shall be directed to Banc of America Securities LLC, 40 West 57th Street, NY1-040-27-01, New York, New York 10019, Attention: High Grade Transaction Management/Legal; notices to the Company shall be delivered to 2992 West Beach, Gulfport, Mississippi, Attention: Corporate Secretary, with a copy to Southern Company Services, Inc., 270 Peachtree Street, N.W., Atlanta, Georgia 30303, Attention:
Earl C. Long.

SECTION 11. PARTIES. This Agreement shall inure to the benefit of and be binding upon the Underwriter, the Company and their respective successors. Nothing expressed or mentioned in this Agreement is intended or shall be construed to give any person, firm or corporation, other than the Underwriter and the Company and their respective successors and the controlling persons and officers and directors referred to in Section 7 and their heirs and legal representatives, any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision herein contained. This Agreement and all conditions and provisions hereof are intended to be for the sole and exclusive benefit of the Underwriter and the Company and their respective successors, and said controlling persons and officers and directors and their heirs and legal representatives, and for the benefit of no other person, firm or corporation. No purchaser of Senior Notes from the Underwriter shall be deemed to be a successor by reason merely of such purchase. The Company acknowledges and agrees that in connection with all aspects of each transaction contemplated by this Agreement, the Company and the Underwriter have an arms length business relationship that creates no fiduciary duty on the part of either party and each expressly disclaims any fiduciary relationship.

SECTION 12. GOVERNING LAW AND TIME. This Agreement shall be governed by and construed in accordance with the laws of the State of New York applicable to agreements made and to be performed in said State. Except as otherwise set forth herein, specified times of day refer to New York City time.

SECTION 13. COUNTERPARTS. This Agreement may be executed by any one or more of the parties hereto in any number of counterparts, each of which shall be deemed to be an original, but all such respective counterparts shall together constitute one and the same instrument.


NY1 940570v4
If the foregoing is in accordance with your understanding of our agreement, please sign and return to the Company a counterpart hereof, whereupon this instrument, along with all counterparts, will become a binding agreement between the Underwriter and the Company in accordance with its terms.

Very truly yours,

MISSISSIPPI POWER COMPANY

By: ______________________________
Name: ____________________________
Title: _____________________________

CONFIRMED AND ACCEPTED,
as of the date first above written

BANC OF AMERICA SECURITIES LLC

By: ___________________________
Name: _________________________
Title: __________________________


Schedule I-A

[Letterhead of Balch & Bingham LLP]

June [ ], 2005

Banc of America Securities LLC
214 N. Tryon Street
Charlotte, North Carolina 28255

MISSISSIPPI POWER COMPANY
Series G ___% Senior Notes
due July 1, 2035

Ladies and Gentlemen:

We have acted as general counsel to Mississippi Power Company (the "Company") in connection with (i) the Company's issuance of $30,000,000 aggregate principal amount of its Series G ___% Senior Notes due July 1, 2035 (the "Notes") pursuant to a Senior Note Indenture dated as of May 1, 1998, by and between the Company and Deutsche Bank Trust Company Americas (formerly known as Bankers Trust Company), as trustee (the "Trustee"), as supplemented by the Seventh Supplemental Indenture dated as of June 30, 2005 (collectively, the "Indenture"); and (ii) the purchase by you of the Notes pursuant to the terms of an Underwriting Agreement dated June 24, 2005 (the "Underwriting Agreement"), between the Company and you (the "Underwriter"). This opinion is being delivered to you pursuant to Section 5(c)(1) thereof.

All capitalized terms not otherwise defined herein shall have the meanings set forth in the Underwriting Agreement.

In rendering the opinions expressed below, we have examined the registration statement on Form S-3 (Nos. 333-108156, 333-108156-01 and 333-108156-02) pertaining to the Notes and certain other securities (the "Registration Statement") filed under the Securities Act of 1933, as amended (the "Act"), and the prospectus of the Company dated September 3, 2003 as supplemented by a final prospectus supplement dated June __, 2005 (the "Final Supplemented Prospectus"), which pursuant to Form S-3 incorporates by reference the Annual Report on Form 10-K of the Company for the fiscal year ended December 31, 2004 (the "Form 10-K"), the Quarterly Report on Form 10-Q of the Company for the quarter ended March 31, 2005 and the Current Reports on Form 8-K of the Company dated January 3, 2005, February 21, 2005, May 5, 2005 and June __, 2005 (the "Exchange Act Documents"), each as filed under the Securities Exchange Act of 1934, as amended (the "Exchange Act").

In addition, we have examined, and have relied as to matters of fact upon, the documents delivered to you at the closing (except the certificate representing the Notes, of which we have examined a specimen), and we have made such other and further investigations as we deemed necessary to express the opinions hereinafter set forth. In such examination, we have assumed the genuineness of all signatures, other than those of the Company, the legal capacity of natural persons, the authenticity of all documents submitted to us as originals, the conformity to original documents of all documents submitted to us as certified or photostatic copies and the authenticity of the originals of such latter documents.

The Indenture and the Underwriting Agreement are herein referred to as the "Agreements."

We have also examined the opinion of Troutman Sanders LLP to you of even date with respect to matters relating to the Securities Act of 1933, as amended; the Securities Exchange Act of 1934, as amended; the Trust Indenture Act of 1939, as amended (the "Trust Indenture Act"), and to the applicable rules and regulations of the Commission under said Acts and in expressing the opinions stated herein, with respect to such matters, we are relying on such opinion.

Based upon the foregoing, and subject to the qualifications and limitations stated herein, we are of the opinion, relying as to matters of New York law upon the opinion dated the date hereof rendered to you by Dewey Ballantine LLP, that:

1. The Company has been duly organized and is validly existing and in good standing as a corporation under the laws of the State of Mississippi, is duly qualified to carry on its business as a foreign corporation under the laws of the State of Alabama and has due corporate authority to carry on the public utility business in which it is engaged, to own and operate the properties used by it in such business and to enter into and perform its obligations under the Agreements and the Notes.

2. The execution, delivery and performance by the Company of the Underwriting Agreement have been duly authorized by all necessary corporate action, and the Underwriting Agreement has been duly executed and delivered by the Company.

3. All orders, consents, or other authorizations or approvals of the Commission legally required for the issuance and sale of the Notes have been obtained; such orders are sufficient for the issuance and the sale of the Notes; the issuance and the sale of the Notes conform in all material respects with the terms of such orders; and no other order, consent or other authorization or approval of any Mississippi or United States governmental body (other than in connection or in compliance with the provisions of the securities or "blue sky" laws of any jurisdiction, as to which we express no opinion) is legally required for the issuance and sale of the Notes in accordance with the terms of the Underwriting Agreement.

4. The Indenture has been duly authorized, executed and delivered by the Company and, assuming the due authorization, execution and delivery thereof by the Trustee, constitutes a valid and legally binding instrument of the Company, enforceable against the Company in accordance with its terms, subject to the qualifications that the enforceability of the Company's obligations thereunder may be limited by bankruptcy, insolvency, reorganization, moratorium and other similar laws relating to or affecting creditors' rights generally and by general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law); and the Indenture conforms as to legal matters in all material respects to the description thereof in the Final Supplemented Prospectus.

5. The Notes have been duly authorized and executed by the Company and, when authenticated by the Trustee in the manner provided in the Indenture and delivered to and paid for by the Underwriter pursuant to the Underwriting Agreement, will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their terms, subject to the qualifications that the enforceability of the Company's obligations under the Notes may be limited by bankruptcy, insolvency, reorganization, moratorium and other similar laws relating to or affecting creditors' rights generally and by general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law); and the Notes conform as to legal matters in all material respects to the description thereof in the Final Supplemented Prospectus.

6. The Indenture has been duly qualified under the Trust Indenture Act.

We have not independently verified the accuracy, completeness or fairness of the statements made or included in the Registration Statement, the Final Supplemented Prospectus or the Exchange Act Documents and take no responsibility therefor, except as and to the extent set forth in paragraphs 4 and 5 above. In the course of the preparation by the Company of the Registration Statement, the Final Supplemented Prospectus and the Exchange Act Documents, we participated in conferences with certain officers and employees of the Company, with other counsel for the Company, with your counsel and with representatives of Deloitte & Touche LLP. Based upon our examination of the Registration Statement, the Final Supplemented Prospectus and the Exchange Act Documents, our investigations made in connection with the preparation of the Registration Statement, the Final Supplemented Prospectus and the Exchange Act Documents and our participation in the conferences referred to above, (i) we are of the opinion that the Registration Statement, as of its effective date, and the Final Supplemented Prospectus, as of June __, 2005, complied as to form in all material respects with the requirements of the Act and the applicable rules and regulations of the Commission thereunder and that the Exchange Act Documents, as of their respective dates of filing with the Commission, complied as to form in all material respects with the relevant requirements of the Exchange Act and the applicable rules and regulations of the Commission thereunder, except that in each case we express no opinion as to the financial statements or other financial or statistical data contained or incorporated by reference in the Registration Statement, the Final Supplemented Prospectus or the Exchange Act Documents, and (ii) nothing came to our attention which gives us reason to believe that the Registration Statement, as of the date of filing of the Form 10-K (including the Exchange Act Documents on file with the Commission as of such date), contained any untrue statement of a material fact or omitted to state any material fact required to be stated therein or necessary in order to make the statements therein not misleading, or that the Final Supplemented Prospectus (including the Exchange Act Documents) contained, as of its date, or contains, on the date hereof, any untrue statement therein of a material fact or omitted, as of its date, or omits, on the date hereof, to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, except that in each case we express no opinion or belief with respect to the financial statements or other financial or statistical data contained or incorporated by reference in the Registration Statement, the Final Supplemented Prospectus or the Exchange Act Documents and with respect to information set forth in the Final Supplemented Prospectus under the caption "Description of the Series G Senior Notes - Book-Entry Only Issuance - The Depository Trust Company".

We are members of the State Bar of Mississippi and we do not express any opinion herein concerning any law other than the law of such State and the federal law of the United States and, to the extent set forth herein, the laws of the States of Alabama and New York.

This opinion is rendered to you in connection with the above-described transaction. This opinion may not be relied upon by you for any other purpose, or relied upon by or furnished to any other person without our prior written consent, except that Troutman Sanders LLP and Dewey Ballantine LLP may rely on this opinion in giving their opinions pursuant to the Underwriting Agreement insofar as such opinion relates to matters of Mississippi and Alabama law.

Yours very truly,

BALCH & BINGHAM LLP


Schedule I-B

[Letterhead of TROUTMAN SANDERS LLP]

June [ ], 2005

Banc of America Securities LLC
214 N. Tryon Street
Charlotte, North Carolina 28255

MISSISSIPPI POWER COMPANY
Series G ____% Senior Notes
due July 1, 2035

Ladies and Gentlemen:

We have acted as counsel to Mississippi Power Company (the "Company") in connection with (i) the Company's issuance of $30,000,000 aggregate principal amount of its Series G ___% Senior Notes due July 1, 2035 (the "Notes") pursuant to a Senior Note Indenture dated as of May 1, 1998, by and between the Company and Deutsche Bank Trust Company Americas (formerly known as Bankers Trust Company), as trustee (the "Trustee"), as heretofore supplemented and as further supplemented by the Seventh Supplemental Indenture dated as of June 30, 2005 (collectively, the "Indenture"); and (ii) the purchase by you of the Notes pursuant to the terms of an Underwriting Agreement dated June 24, 2005 (the "Underwriting Agreement"), between the Company and you (the "Underwriter"). This opinion is being delivered to you pursuant to Section 5(c)(2) thereof.

All capitalized terms not otherwise defined herein shall have the meanings set forth in the Underwriting Agreement.

In rendering the opinions expressed below, we have examined the registration statement on Form S-3 (Nos. 333-108156, 333-108156-01 and 333-108156-02) pertaining to the Notes and certain other securities (the "Registration Statement") filed under the Securities Act of 1933, as amended (the "Act"), and the prospectus of the Company dated September 3, 2003 as supplemented by a final prospectus supplement dated June __, 2005 (the "Final Supplemented Prospectus"), which pursuant to Form S-3 incorporates by reference the Annual Report on Form 10-K of the Company for the fiscal year ended December 31, 2004 (the "Form 10-K"), the Quarterly Report on Form 10-Q of the Company for the quarter ended March 31, 2005 and the Current Reports on Form 8-K of the Company dated January 3, 2005, February 21, 2005, May 5, 2005 and June __, 2005 (the "Exchange Act Documents"), each as filed under the Securities Exchange Act of 1934, as amended (the "Exchange Act").

In addition, we have examined, and have relied as to matters of fact upon, the documents delivered to you at the closing (except the certificate representing the Notes, of which we have examined a specimen), and we have made such other and further investigations as we deemed necessary to express the opinions hereinafter set forth. In such examination, we have assumed the genuineness of all signatures, other than those of the Company, the legal capacity of natural persons, the authenticity of all documents submitted to us as originals, the conformity to original documents of all documents submitted to us as certified or photostatic copies and the authenticity of the originals of such latter documents.

The Indenture and the Underwriting Agreement are herein referred to collectively as the "Agreements".

Based upon the foregoing, and subject to the qualifications and limitations stated herein, we are of the opinion, relying as to matters of Mississippi and Alabama law upon the opinion dated the date hereof rendered to you by Balch & Bingham LLP and relying as to matters of New York law upon the opinion dated the date hereof rendered to you by Dewey Ballantine LLP, that:

1. The Company has been duly incorporated and is validly existing as a corporation in good standing under the laws of the State of Mississippi, is duly qualified to carry on its business as a foreign corporation under the laws of the State of Alabama, and has due corporate authority to carry on the public utility business in which it is engaged, to own and operate the properties used by it in such business and to enter into and perform its obligations under the Agreements and the Notes.

2. The execution, delivery and performance by the Company of the Underwriting Agreement have been duly authorized by all necessary corporate action, and the Underwriting Agreement has been duly executed and delivered by the Company.

3. All orders, consents or other authorizations or approvals of the Commission legally required for the issuance and sale of the Notes have been obtained; such orders are sufficient for the issuance and sale of the Notes; the issuance and sale of the Notes conform in all material respects with the terms of such orders; and no other order, consent or other authorization or approval of any Mississippi or United States governmental body (other than in connection or in compliance with the provisions of the securities or "blue sky" laws of any jurisdiction, as to which we express no opinion) is legally required for the issuance and sale of the Notes in accordance with the terms of the Underwriting Agreement.

4. The Indenture has been duly authorized, executed and delivered by the Company and, assuming the due authorization, execution and delivery thereof by the Trustee, constitutes a valid and legally binding instrument of the Company, enforceable against the Company in accordance with its terms, subject to the qualifications that the enforceability of the Company's obligations thereunder may be limited by bankruptcy, insolvency, reorganization, moratorium and other similar laws relating to or affecting creditors' rights generally and by general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law); and the Indenture conforms as to legal matters in all material respects to the description thereof in the Final Supplemented Prospectus.

5. The Notes have been duly authorized and executed by the Company and, when authenticated by the Trustee in the manner provided in the Indenture and delivered to and paid for by the Underwriter pursuant to the Underwriting Agreement, will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their terms, subject to the qualifications that the enforceability of the Company's obligations under the Notes may be limited by bankruptcy, insolvency, reorganization, moratorium and other similar laws relating to or affecting creditors' rights generally and by general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law); and the Notes conform as to legal matters in all material respects to the description thereof in the Final Supplemented Prospectus.

6. The Indenture has been duly qualified under the Trust Indenture Act of 1939, as amended.

We have not independently verified the accuracy, completeness or fairness of the statements made or included in the Registration Statement, the Final Supplemented Prospectus or the Exchange Act Documents and take no responsibility therefor, except as and to the extent set forth in paragraphs 4 and 5 above. In the course of the preparation by the Company of the Registration Statement, the Final Supplemented Prospectus and the Exchange Act Documents, we participated in conferences with certain officers and employees of the Company, with other counsel for the Company, with representatives of Deloitte & Touche LLP and with your counsel. Based upon our examination of the Registration Statement, the Final Supplemented Prospectus and the Exchange Act Documents, our investigations made in connection with the preparation of the Registration Statement, the Final Supplemented Prospectus and the Exchange Act Documents and our participation in the conferences referred to above, (i) we are of the opinion that the Registration Statement, as of its effective date, and the Final Supplemented Prospectus, as of June __, 2005, complied as to form in all material respects with the requirements of the Act and the applicable rules and regulations of the Commission thereunder and that the Exchange Act Documents, as of their respective dates of filing with the Commission, complied as to form in all material respects with the relevant requirements of the Exchange Act and the applicable rules and regulations of the Commission thereunder, except that in each case we express no opinion as to the financial statements or other financial or statistical data contained or incorporated by reference in the Registration Statement, the Final Supplemented Prospectus or the Exchange Act Documents, and (ii) nothing came to our attention which gives us reason to believe that the Registration Statement, as of the date of filing of the Form 10-K (including the Exchange Act Documents on file with the Commission as of such date), contained any untrue statement of a material fact or omitted to state any material fact required to be stated therein or necessary in order to make the statements therein not misleading, or that the Final Supplemented Prospectus (including the Exchange Act Documents) contained, as of its date, or contains, on the date hereof, any untrue statement of a material fact or omitted, as of its date, or omits, on the date hereof, to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, except that in each case we express no opinion or belief with respect to the financial statements or other financial or statistical data contained or incorporated by reference in the Registration Statement, the Final Supplemented Prospectus or the Exchange Act Documents and with respect to information set forth in the Final Supplemented Prospectus under the caption "Description of the Series G Senior Notes - Book-Entry Only Issuance - The Depository Trust Company".

We are members of the State Bar of Georgia and we do not express any opinion herein concerning any law other than the law of the State of Georgia and the federal law of the United States and, to the extent set forth herein, the laws of the States of Alabama, Mississippi and New York.

This opinion is rendered to you in connection with the above-described transaction. This opinion may not be relied upon by you for any other purpose or relied upon by or furnished to any other person without our prior written consent, except that Balch & Bingham LLP may rely on this opinion in giving its opinion pursuant to Section 5(c) of the Underwriting Agreement, insofar as such opinion relates to matters of federal securities law.

Yours very truly,

TROUTMAN SANDERS LLP


Schedule II

[Letterhead of White & Case LLP]

June [ ], 2005

Banc of America Securities LLC
214 N. Tryon Street
Charlotte, North Carolina 28255

Mississippi Power Company
2992 West Beach
Gulfport, Mississippi 39501

Mississippi Power Company Series G ___% Senior Notes due July 1, 2035

Ladies and Gentlemen:

We have acted as counsel to Deutsche Bank Trust Company Americas (formerly known as Bankers Trust Company), (the "Bank") in connection with (a) the Senior Note Indenture, dated as of May 1, 1998, as heretofore supplemented (the "Original Indenture"), between Mississippi Power Company (the "Company") and the Bank, as Trustee, and (b) the Seventh Supplemental Indenture to the Original Indenture, dated as of June 30, 2005 (together with the Original Indenture, herein called the "Indenture"), between the Company and the Trustee with respect to the issuance by the Company of $30,000,000 aggregate principal amount of Series G ___% Senior Notes due July 1, 2035 (the "Series G Senior Notes").

In this connection, we have examined such certificates of public officials, such certificates of officers of the Bank, and copies certified to our satisfaction of such corporate documents and records of the Bank, and of such other papers, as we have deemed relevant and necessary for our opinion hereinafter set forth. We have relied upon such certificates of public officials and of officers of the Bank with respect to the accuracy of material factual matters contained therein which were not independently established. In rendering the opinion expressed below, we have assumed the genuineness of all signatures, the authenticity of all documents submitted to us as originals and the conformity to authentic original documents of all documents submitted to us as certified, conformed or photostatic copies.

Based upon the foregoing, it is our opinion that:

1. The Bank has been duly incorporated and is validly existing as a New York banking corporation under the laws of the State of New York and has the power and authority to enter into, and to take all action required of it under, the Indenture.

2. The Indenture has been duly authorized, executed and delivered by the Bank and constitutes a legal, valid and binding obligation of the Bank, enforceable against the Bank in accordance with its terms, except as the enforceability thereof may be limited by (i) bankruptcy, insolvency, reorganization, or other similar laws affecting the enforcement of creditors' rights generally, as such laws would apply in the event of a bankruptcy, insolvency or reorganization or similar occurrence affecting the Bank, and (ii) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law).

3. The execution and delivery of the Indenture by the Bank and the performance by the Bank of its terms do not conflict with or result in a violation of (A) any law or regulation of the United States of America or the State of New York governing the banking or trust powers of the Bank, or (B) the By-laws of the Bank.

4. The Series G Senior Notes have been duly authenticated and delivered by the Bank.

5. No approval, authorization or other action by, or filing with, any governmental authority of the United States of America or the State of New York having jurisdiction over the banking or trust powers of the Bank is required in connection with the execution and delivery by the Bank of the Indenture or the performance by the Bank of the terms of the Indenture.

We express no opinion as to matters governed by any law other than the law of the State of New York and the Federal law of the United States.

Very truly yours,

WHITE & CASE LLP


Schedule III

[Letterhead of DEWEY BALLANTINE LLP]

June [ ], 2005

Banc of America Securities LLC
214 N. Tryon Street
Charlotte, North Carolina 28255

MISSISSIPPI POWER COMPANY
Series G ___% Senior Notes
due July 1, 2035

Ladies and Gentlemen:

We have represented you in connection with (i) the issuance by Mississippi Power Company (the "Company") of $30,000,000 aggregate principal amount of its Series G ___% Senior Notes (the "Notes") pursuant to a Senior Note Indenture dated as of May 1, 1998, by and between the Company and Deutsche Bank Trust Company Americas (formerly known as Bankers Trust Company), as trustee (the "Trustee"), as heretofore supplemented and as further supplemented by the Seventh Supplemental Indenture dated as of June 30, 2005 (collectively, the "Indenture"); and (ii) the purchase by you of the Notes pursuant to the terms of an Underwriting Agreement dated June 24, 2005 (the "Underwriting Agreement"), between the Company and you (the "Underwriter"). This opinion is being delivered to you pursuant to Section 5(c)(4) of the Underwriting Agreement.

All capitalized terms not otherwise defined herein shall have the meanings set forth in the Underwriting Agreement.

In rendering the opinions expressed below, we have examined the registration statement on Form S-3 (Nos. 333-108156, 333-108156-01 and 333-108156-02) pertaining to the Notes and certain other securities (the "Registration Statement"), filed under the Securities Act of 1933, as amended (the "Act"), and the prospectus dated September 3, 2003, as supplemented by a final prospectus supplement dated June __, 2005 (the "Final Supplemented Prospectus"), which pursuant to Form S-3 incorporates by reference the Annual Report on Form 10-K of the Company for the fiscal year ended December 31, 2004 (the "Form 10-K"), the Quarterly Report on Form 10-Q of the Company for the quarter ended March 31, 2005 and the Current Reports on Form 8-K of the Company, dated January 3, 2005, February 21, 2005, May 5, 2005 and June __, 2005 (the "Exchange Act Documents"), each as filed under the Securities Exchange Act of 1934, as amended (the "Exchange Act").

In addition, we have examined, and have relied as to matters of fact upon, the documents delivered to you at the closing (except the certificate representing the Notes, of which we have examined a specimen), and we have made such other and further investigations as we deemed necessary to express the opinions hereinafter set forth. In such examination, we have assumed the genuineness of all signatures, the legal capacity of natural persons, the authenticity of all documents submitted to us as originals, the conformity to original documents of all documents submitted to us as certified or photostatic copies, and the authenticity of the originals of such latter documents.

The Indenture and the Underwriting Agreement are herein referred to as the "Agreements".

Based upon the foregoing, and subject to the qualifications and limitations stated herein, we are of the opinion, relying as aforesaid and as to all matters covered hereby which are governed by or dependent upon the laws of the States of Mississippi and Alabama upon the opinion of Balch & Bingham LLP dated the date hereof and addressed to you, that:

1. The Company has been duly incorporated and is validly existing as a corporation in good standing under the laws of the State of Mississippi, is duly qualified to carry on its business as a foreign corporation in the State of Alabama and has due corporate authority to carry on the public utility business in which it is engaged, to own and operate the properties used by it in such business and to enter into and perform its obligations under the Agreements and the Notes.

2. The execution, delivery and performance by the Company of the Underwriting Agreement have been duly authorized by all necessary corporate action, and the Underwriting Agreement has been duly executed and delivered by the Company.

3. All orders, consents or other authorizations or approvals of the Commission legally required for the issuance and sale of the Notes have been obtained; such orders are sufficient for the issuance and sale of the Notes; the issuance and sale of the Notes conform in all material respects with the terms of such orders; and no other order, consent or other authorization or approval of any New York, Mississippi or United States governmental body (other than in connection or in compliance with the provisions of the securities or "blue sky" laws of any jurisdiction, as to which we express no opinion) is legally required for the issuance and sale of the Notes in accordance with the terms of the Underwriting Agreement.

4. The Indenture has been duly authorized, executed and delivered by the Company and, assuming the due authorization, execution and delivery thereof by the Trustee constitutes a valid and legally binding instrument of the Company, enforceable against the Company in accordance with its terms, subject to the qualifications that the enforceability of the Company's obligations under the Indenture may be limited by bankruptcy, insolvency, reorganization, moratorium and other similar laws relating to or affecting creditors' rights generally and by general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law); and the Indenture conforms as to legal matters in all material respects to the description thereof in the Final Supplemented Prospectus.

5. The Notes have been duly authorized and executed by the Company and, when authenticated by the Trustee in the manner provided in the Indenture and delivered to and paid for by the Underwriter pursuant to the Underwriting Agreement, will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their terms, subject to the qualifications that the enforceability of the Company's obligations under the Notes may be limited by bankruptcy, insolvency, reorganization, moratorium and other similar laws relating to or affecting creditors' rights generally and by general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law); and the Notes conform as to legal matters in all material respects to the description thereof in the Final Supplemented Prospectus.

6. The Indenture has been duly qualified under the Trust Indenture Act of 1939, as amended.

We have not independently verified the accuracy, completeness or fairness of the statements made or included in the Registration Statement, the Final Supplemented Prospectus or the Exchange Act Documents and take no responsibility therefor, except as and to the extent set forth in paragraphs 4 and 5 above. In the course of the preparation by the Company of the Registration Statement, the Final Supplemented Prospectus and the Exchange Act Documents, we participated in conferences with certain officers and employees of the Company, with representatives of Deloitte & Touche LLP and with counsel to the Company. Based upon our examination of the Registration Statement, the Final Supplemented Prospectus and the Exchange Act Documents, our investigations made in connection with the preparation of the Registration Statement and the Final Supplemented Prospectus and our participation in the conferences referred to above, (i) we are of the opinion that the Registration Statement, as of its effective date, and the Final Supplemented Prospectus, as of June __, 2005, complied as to form in all material respects with the requirements of the Act and the applicable rules and regulations of the Commission thereunder and that the Exchange Act Documents, as of their respective dates of filing with the Commission, complied as to form in all material respects with the relevant requirements of the Exchange Act and the applicable rules and regulations of the Commission thereunder, except that in each case we express no opinion as to the financial statements or other financial or statistical data contained or incorporated by reference in the Registration Statement, the Final Supplemented Prospectus or the Exchange Act Documents, and (ii) nothing came to our attention which gives us reason to believe that the Registration Statement, as of the date of filing of the Form 10-K (including the Exchange Act Documents on file with the Commission as of such date), contained any untrue statement of a material fact or omitted to state any material fact required to be stated therein or necessary in order to make the statements therein not misleading, or that the Final Supplemented Prospectus (including the Exchange Act Documents) contained, as of its date, or contains, on the date hereof, any untrue statement of a material fact or omitted, as of its date, or omits, on the date hereof, to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, except that in each case we express no opinion or belief with respect to the financial statements or other financial or statistical data contained or incorporated by reference in the Registration Statement, the Final Supplemented Prospectus or the Exchange Act Documents and with respect to information set forth in the Final Supplemented Prospectus under the caption "Description of the Series G Senior Notes - Book-Entry Only Issuance - The Depository Trust Company".

We are members of the State Bar of New York and we do not express any opinion herein concerning any law other than the law of the State of New York and the federal law of the United States and, to the extent set forth herein, the law of the States of Mississippi and Alabama.

This opinion is rendered solely to you in connection with the above matter. This opinion may not be relied upon by you for any other purpose or relied upon by or furnished to any other person without our prior written consent except that Balch & Bingham LLP and Troutman Sanders LLP may rely on this opinion in giving their opinions pursuant to Section 5(c) of the Underwriting Agreement insofar as such opinion relates to matters of New York law and Troutman Sanders LLP may rely on this opinion in giving its opinion pursuant to Sections 102, 302 and 904 of the Indenture insofar as such opinion relates to matters of New York law.

Very truly yours,

DEWEY BALLANTINE LLP


Exhibit 4.2

MISSISSIPPI POWER COMPANY

TO

DEUTSCHE BANK TRUST COMPANY AMERICAS,
TRUSTEE

SEVENTH SUPPLEMENTAL INDENTURE

DATED AS OF JUNE 30, 2005

SERIES G 5.40% SENIOR NOTES

DUE JULY 1, 2035


TABLE OF CONTENTS1

                                                                                                            PAGE


ARTICLE 1.........................................................................................................1

    Series G Senior Notes.........................................................................................1
    SECTION 101.  Establishment...................................................................................1
    SECTION 102.  Definitions.....................................................................................2
    SECTION 103.  Payment of Principal and Interest...............................................................3
    SECTION 104.  Denominations...................................................................................4
    SECTION 105.  Global Securities...............................................................................4
    SECTION 106.  Transfer........................................................................................4
    SECTION 107.  Redemption at the Company's Option..............................................................4


ARTICLE 2.........................................................................................................6

    Miscellaneous Provisions......................................................................................6
    SECTION 201.  Recitals by Company.............................................................................6
    SECTION 202.  Ratification and Incorporation of Original Indenture............................................6
    SECTION 203.  Executed in Counterparts........................................................................6


1 This Table of Contents does not constitute part of the Indenture or have any bearing upon the interpretation of any of its terms and provisions.


THIS SEVENTH SUPPLEMENTAL INDENTURE is made as of the 30th day of June, 2005 by and between MISSISSIPPI POWER COMPANY, a Mississippi corporation, 2992 West Beach, Gulfport, Mississippi 39501 (the "Company"), and DEUTSCHE BANK TRUST COMPANY AMERICAS, a banking corporation duly organized and existing under the laws of the State of New York, having its principal corporate trust office at 60 Wall Street, 27th Floor, New York, New York 10005 (the "Trustee").

W I T N E S S E T H:

WHEREAS, the Company has heretofore entered into a Senior Note Indenture, dated as of May 1, 1998 (the "Original Indenture"), with Deutsche Bank Trust Company Americas (formerly known as Bankers Trust Company), as heretofore supplemented;

WHEREAS, the Original Indenture is incorporated herein by this reference and the Original Indenture, as heretofore supplemented and as further supplemented by this Seventh Supplemental Indenture, is herein called the "Indenture";

EREAS, under the Original Indenture, a new series of Senior Notes may at any time be established pursuant to a supplemental indenture executed by the Company and the Trustee;

WHEREAS, the Company proposes to create under the Indenture a new series of Senior Notes;

WHEREAS, additional Senior Notes of other series hereafter established, except as may be limited in the Original Indenture as at the time supplemented and modified, may be issued from time to time pursuant to the Indenture as at the time supplemented and modified; and

WHEREAS, all conditions necessary to authorize the execution and delivery of this Seventh Supplemental Indenture and to make it a valid and binding obligation of the Company have been done or performed.

NOW, THEREFORE, in consideration of the agreements and obligations set forth herein and for other good and valuable consideration, the sufficiency of which is hereby acknowledged, the parties hereto hereby agree as follows:

ARTICLE 1

Series G Senior Notes

SECTION 101. Establishment. There is hereby established a new series of Senior Notes to be issued under the Indenture, to be designated as the Company's Series G 5.40% Senior Notes due July 1, 2035 (the "Series G Notes").

There are to be authenticated and delivered $30,000,000 principal amount of Series G Notes, and such principal amount of the Series G Notes may be increased from time to time pursuant to Section 301 of the Original Indenture. All Series G Notes need not be issued at the same time and such series may be reopened at any time, without the consent of the Holders thereof, for issuance of additional Series G Notes. Any such additional Series G Notes will have the same interest rate, maturity and other terms as those initially issued. No Series G Notes shall be authenticated and delivered except as provided by Sections 203, 303, 304, 907 or 1107 of the Original Indenture. The Series G Notes shall be issued in definitive fully registered form.

The Series G Notes shall be issued in the form of one or more Global Securities in substantially the form set out in Exhibit A hereto. The Depositary with respect to the Series G Notes shall be The Depository Trust Company.

The form of the Trustee's Certificate of Authentication for the Series G Notes shall be in substantially the form set forth in Exhibit B hereto.

Each Series G Note shall be dated the date of authentication thereof and shall bear interest from the date of original issuance thereof or from the most recent Interest Payment Date to which interest has been paid or duly provided for.

SECTION 102. Definitions. The following defined terms used herein shall, unless the context otherwise requires, have the meanings specified below. Capitalized terms used herein for which no definition is provided herein shall have the meanings set forth in the Original Indenture.

"Comparable Treasury Issue" means the United States Treasury security selected by an Independent Investment Banker as having a maturity comparable to the remaining term of the Series G Notes to the Initial Redemption Date that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the Initial Redemption Date.

"Comparable Treasury Price" means, with respect to any Redemption Date,
(i) the average of the Reference Treasury Dealer Quotations for such Redemption Date, after excluding the highest and lowest such Reference Treasury Dealer Quotations, or (ii) if the Company obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such quotations.

"Independent Investment Banker" means an independent investment banking institution of national standing appointed by the Company.

"Initial Redemption Date" means June 30, 2015.

"Interest Payment Dates" means January 1 and July 1 of each year, commencing January 1, 2006.

"Original Issue Date" means June 30, 2005.

"Redemption Price" has the meaning given to it in Section 107 hereof.

"Reference Treasury Dealer" means a primary United States Government securities dealer in New York City appointed by the Company.

"Reference Treasury Dealer Quotation" means, with respect to each Reference Treasury Dealer and any Redemption Date, the average, as determined by the Company and delivered in writing to the Trustee, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount and quoted in writing to the Company by such Reference Treasury Dealer at 5:00 p.m. on the third Business Day in New York City preceding such Redemption Date).

"Regular Record Date" means, with respect to each Interest Payment Date, the close of business on the 15th calendar day preceding such Interest Payment Date (whether or not a Business Day).

"Stated Maturity" means July 1, 2035.

"Treasury Yield" means, with respect to any Redemption Date, the rate per annum equal to the semiannual equivalent yield to maturity of the Comparable Treasury Issue, assuming a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such Redemption Date.

SECTION 103. Payment of Principal and Interest. The principal of the Series G Notes shall be due at Stated Maturity (unless earlier redeemed). The unpaid principal amount of the Series G Notes shall bear interest at the rate of 5.40% per annum until paid or duly provided for. Interest shall be paid semiannually in arrears on each Interest Payment Date to the Person in whose name the Series G Notes are registered on the Regular Record Date for such Interest Payment Date, provided that interest payable at the Stated Maturity or on a Redemption Date as provided herein will be paid to the Person to whom principal is payable. Any such interest that is not so punctually paid or duly provided for will forthwith cease to be payable to the Holders on such Regular Record Date and may either be paid to the Person or Persons in whose name the Series G Notes are registered at the close of business on a Special Record Date for the payment of such defaulted interest to be fixed by the Trustee, notice whereof shall be given to Holders of the Series G Notes not less than ten (10) days prior to such Special Record Date, or be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange, if any, on which the Series G Notes shall be listed, and upon such notice as may be required by any such exchange, all as more fully provided in the Original Indenture.

Payments of interest on the Series G Notes will include interest accrued to but excluding the respective Interest Payment Dates. Interest payments for the Series G Notes shall be computed and paid on the basis of a 360-day year of twelve 30-day months. In the event that any date on which interest is payable on the Series G Notes is not a Business Day, then a payment of the interest payable on such date will be made on the next succeeding day that is a Business Day (and without any interest or other payment in respect of any such delay), with the same force and effect as if made on the date the payment was originally payable.

Payment of the principal and interest due at the Stated Maturity or earlier redemption of the Series G Notes shall be made upon surrender of the Series G Notes at the Corporate Trust Office of the Trustee. The principal of and interest on the Series G Notes shall be paid in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts. Payments of interest (including interest on any Interest Payment Date) will be made, subject to such surrender where applicable, at the option of the Company, (i) by check mailed to the address of the Person entitled thereto as such address shall appear in the Security Register or (ii) by wire transfer or other electronic transfer at such place and to such account at a banking institution in the United States as may be designated in writing to the Trustee at least sixteen (16) days prior to the date for payment by the Person entitled thereto.

SECTION 104. Denominations. The Series G Notes may be issued in the denominations of $1,000, or any integral multiple thereof.

SECTION 105. Global Securities. The Series G Notes will be issued in the form of one or more Global Securities registered in the name of the Depositary (which shall be The Depository Trust Company) or its nominee. Except under the limited circumstances described below, Series G Notes represented by one or more Global Securities will not be exchangeable for, and will not otherwise be issuable as, Series G Notes in definitive form. The Global Securities described above may not be transferred except by the Depositary to a nominee of the Depositary or by a nominee of the Depositary to the Depositary or another nominee of the Depositary or to a successor Depositary or its nominee.

Owners of beneficial interests in such a Global Security will not be considered the Holders thereof for any purpose under the Indenture, and no Global Security representing a Series G Note shall be exchangeable, except for another Global Security of like denomination and tenor to be registered in the name of the Depositary or its nominee or to a successor Depositary or its nominee. The rights of Holders of such Global Security shall be exercised only through the Depositary.

Subject to the procedures of the Depositary, a Global Security shall be exchangeable for Series G Notes registered in the names of persons other than the Depositary or its nominee only if (i) the Depositary notifies the Company that it is unwilling or unable to continue as a Depositary for such Global Security and no successor Depositary shall have been appointed by the Company, or if at any time the Depositary ceases to be a clearing agency registered under the Securities Exchange Act of 1934, as amended, at a time when the Depositary is required to be so registered to act as such Depositary and no successor Depositary shall have been appointed by the Company, in each case within 90 days after the Company receives such notice or becomes aware of such cessation, (ii) the Company in its sole discretion determines that such Global Security shall be so exchangeable, or (iii) there shall have occurred an Event of Default with respect to the Series G Notes. Any Global Security that is exchangeable pursuant to the preceding sentence shall be exchangeable for Series G Notes registered in such names as the Depositary shall direct.

SECTION 106. Transfer. No service charge will be made for any transfer or exchange of Series G Notes, but payment will be required of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection therewith. The Company shall not be required (a) to issue, transfer or exchange any Series G Notes during a period beginning at the opening of business fifteen
(15) days before the day of the mailing of a notice pursuant to Section 1104 of the Original Indenture identifying the serial numbers of the Series G Notes to be called for redemption, and ending at the close of business on the day of the mailing, or (b) to transfer or exchange any Series G Notes theretofore selected for redemption in whole or in part, except the unredeemed portion of any Series G Note redeemed in part.

SECTION 107. Redemption at the Company's Option. The Series G Notes will be subject to redemption at the option of the Company in whole or in part at any time and from time to time upon not less than 30 nor more than 60 days' notice. The Company shall have the right to redeem the Series G Notes in whole or in part at a redemption price (the "Redemption Price") equal to:

(i) if the Redemption Date is prior to June 30, 2015, the greater of (1) 100% of the principal amount of the Series G Notes to be redeemed or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the Series G Notes being redeemed to June 30, 2015 (for purposes of this calculation, the remaining scheduled payment of principal is deemed payable on the Initial Redemption Date and the remaining scheduled payments of interest are those interest payments payable on or before the Initial Redemption Date) (excluding the portion of any such interest accrued to the date of redemption) discounted (for purposes of determining present value) to the Redemption Date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at a discount rate equal to the Treasury Yield plus 20 basis points; or

(ii) if the Redemption Date is on or after June 30, 2015, 100% of the principal amount of the Series G Notes to be redeemed, plus, in each case, accrued and unpaid interest thereon to the date of redemption.

The Trustee shall not be responsible for the calculation of the Redemption Price. The Company shall calculate the Redemption Price and promptly notify the Trustee thereof.

In the event of redemption of the Series G Notes in part only, a new Series G Note or Notes for the unredeemed portion will be issued in the name or names of the Holders thereof upon the surrender thereof.

The Series G Notes will not have a sinking fund.

Notice of redemption shall be given as provided in Section 1104 of the Original Indenture.

Any redemption of less than all of the Series G Notes shall, with respect to the principal thereof, be divisible by $1,000.

ARTICLE 2

Miscellaneous Provisions

SECTION 201. Recitals by Company. The recitals in this Seventh Supplemental Indenture are made by the Company only and not by the Trustee, and all of the provisions contained in the Original Indenture in respect of the rights, privileges, immunities, powers and duties of the Trustee shall be applicable in respect of Series G Notes and of this Seventh Supplemental Indenture as fully and with like effect as if set forth herein in full.

SECTION 202. Ratification and Incorporation of Original Indenture. As heretofore supplemented and as supplemented hereby, the Original Indenture is in all respects ratified and confirmed, and the Original Indenture as heretofore supplemented and as supplemented by this Seventh Supplemental Indenture shall be read, taken and construed as one and the same instrument.

SECTION 203. Executed in Counterparts. This Seventh Supplemental Indenture may be simultaneously executed in several counterparts, each of which shall be deemed to be an original, and such counterparts shall together constitute but one and the same instrument.


IN WITNESS WHEREOF, each party hereto has caused this instrument to be signed in its name and behalf by its duly authorized officers, all as of the day and year first above written.

ATTEST:  .........                            MISSISSIPPI POWER COMPANY


By:      .........                            By:

         Vicki L. Pierce                             Frances V. Turnage
         Secretary and Assistant Treasurer    Vice President, Chief Financial
                                                 Officer and Treasurer


ATTEST:  .........                            DEUTSCHE BANK TRUST COMPANY
         .........                                     AMERICAS, as Trustee


By:       ........                           By:

         Irina Golovashchuk                      Susan Johnson
         Associate                             Vice President


EXHIBIT A

FORM OF SERIES G NOTE


NO. ____ CUSIP NO. 605417 BT 0

MISSISSIPPI POWER COMPANY
SERIES G 5.40% SENIOR NOTE
DUE JULY 1, 2035

Principal Amount:               $_____________

Regular Record Date:            15th  calendar day prior to
                                Interest  Payment  Date
                                (whether or not a
                                Business Day)

Original Issue Date:            June 30, 2005

Stated Maturity:                July 1, 2035

Interest Payment Dates:         January 1 and July 1

Interest Rate:                  5.40% per annum

Authorized Denominations:       $1,000 or any integral multiple thereof

Mississippi Power Company, a Mississippi corporation (the "Company," which term includes any successor corporation under the Indenture referred to on the reverse hereof), for value received, hereby promises to pay to _____________________, or registered assigns, the principal sum of ___________________________DOLLARS ($___________) on the Stated Maturity shown above (or upon earlier redemption), and to pay interest thereon from the Original Issue Date shown above, or from the most recent Interest Payment Date to which interest has been paid or duly provided for, semiannually in arrears on each Interest Payment Date as specified above, commencing January 1, 2006, and on the Stated Maturity (or upon earlier redemption) at the rate per annum shown above until the principal hereof is paid or made available for payment and on any overdue principal and on any overdue installment of interest. The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date (other than an Interest Payment Date that is the Stated Maturity or on a Redemption Date) will, as provided in such Indenture, be paid to the Person in whose name this Note (the "Note") is registered at the close of business on the Regular Record Date as specified above next preceding such Interest Payment Date, provided that any interest payable at Stated Maturity or on any Redemption Date will be paid to the Person to whom principal is payable. Except as otherwise provided in the Indenture, any such interest not so punctually paid or duly provided for will forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the Person in whose name this Note is registered at the close of business on a Special Record Date for the payment of such defaulted interest to be fixed by the Trustee, notice whereof shall be given to Holders of Notes of this series not less than 10 days prior to such Special Record Date, or be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange, if any, on which the Notes of this series shall be listed, and upon such notice as may be required by any such exchange, all as more fully provided in the Indenture.

Payments of interest on this Note will include interest accrued to but excluding the respective Interest Payment Dates. Interest payments for this Note shall be computed and paid on the basis of a 360-day year of twelve 30-day months. In the event that any date on which interest is payable on this Note is not a Business Day, then payment of the interest payable on such date will be made on the next succeeding day that is a Business Day (and without any interest or other payment in respect of any such delay), with the same force and effect as if made on the date the payment was originally payable. A "Business Day" shall mean any day other than a Saturday or a Sunday or a day on which banking institutions in New York City are authorized or required by law or executive order to remain closed or a day on which the Corporate Trust Office of the Trustee is closed for business.

Payment of the principal of and interest due at the Stated Maturity or earlier redemption of the Series G Notes shall be made upon surrender of the Series G Notes at the Corporate Trust Office of the Trustee. The principal of and interest on the Series G Notes shall be paid in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts. Payment of interest (including interest on an Interest Payment Date) will be made, subject to such surrender where applicable, at the option of the Company, (i) by check mailed to the address of the Person entitled thereto as such address shall appear in the Security Register or (ii) by wire transfer or other electronic transfer at such place and to such account at a banking institution in the United States as may be designated in writing to the Trustee at least 16 days prior to the date for payment by the Person entitled thereto.

REFERENCE IS HEREBY MADE TO THE FURTHER PROVISIONS OF THIS NOTE SET FORTH ON THE REVERSE HEREOF, WHICH FURTHER PROVISIONS SHALL FOR ALL PURPOSES HAVE THE SAME EFFECT AS IF SET FORTH AT THIS PLACE.

Unless the certificate of authentication hereon has been executed by the Trustee by manual signature, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose.


IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed under its corporate seal.

Dated:

......... MISSISSIPPI POWER COMPANY

......... By:
......... Title:

Attest:

.........
Title:

{Seal of MISSISSIPPI POWER COMPANY appears here}


MPC Series G Indenture.DOC

CERTIFICATE OF AUTHENTICATION

This is one of the Senior Notes referred to in the within-mentioned Indenture.

DEUTSCHE BANK TRUST COMPANY
AMERICAS, as Trustee

By:
Vice President

(Reverse Side of Note)

This Note is one of a duly authorized issue of Senior Notes of the Company (the "Notes"), issued and issuable in one or more series under a Senior Note Indenture, dated as of May 1, 1998, as supplemented (the "Indenture"), between the Company and Deutsche Bank Trust Company Americas (formerly known as Bankers Trust Company), as Trustee (the "Trustee," which term includes any successor trustee under the Indenture), to which Indenture and all indentures incidental thereto reference is hereby made for a statement of the respective rights, limitation of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Notes issued thereunder and of the terms upon which said Notes are, and are to be, authenticated and delivered. This Note is one of the series designated on the face hereof as Series G 5.40% Senior Notes due July 1, 2035 (the "Series G Notes") which is unlimited in aggregate principal amount. Capitalized terms used herein for which no definition is provided herein shall have the meanings set forth in the Indenture.

The Series G Notes will be subject to redemption at the option of the Company in whole or in part at any time and from time to time upon not less than 30 nor more than 60 days' notice. The Company shall have the right to redeem the Series G Notes in whole or in part at a redemption price (the "Redemption Price") equal to:

(i) if the Redemption Date is prior to June 30, 2015, the greater of (1) 100% of the principal amount of the Series G Notes to be redeemed or (2) the sum of the present values of the remaining scheduled payments of principal and interest on the Series G Notes being redeemed to June 30, 2015 (for purposes of this calculation, the remaining scheduled payment of principal is deemed payable on June 30, 2015 (the "Initial Redemption Date") and the remaining scheduled payments of interest are those interest payments payable on or before the Initial Redemption Date) (excluding the portion of any such interest accrued to the date of redemption) discounted (for purposes of determining present value) to the Redemption Date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at a discount rate equal to the Treasury Yield (as defined below) plus 20 basis points; or

(ii) if the Redemption Date is on or after June 30, 2015 and prior to maturity, 100% of the principal amount of the Series G Notes to be redeemed, plus, in each case, accrued and unpaid interest thereon to the date of redemption.

"Treasury Yield" means, with respect to any Redemption Date, the rate per annum equal to the semiannual equivalent yield to maturity of the Comparable Treasury Issue, assuming a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such Redemption Date.

"Comparable Treasury Issue" means the United States Treasury security selected by an Independent Investment Banker as having a maturity comparable to the remaining term of the Series G Notes to the Initial Redemption Date that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the Initial Redemption Date.

"Comparable Treasury Price" means, with respect to any Redemption Date,
(i) the average of the Reference Treasury Dealer Quotations for such Redemption Date, after excluding the highest and lowest such Reference Treasury Dealer Quotations, or (ii) if the Company obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such quotations.

"Independent Investment Banker" means an independent investment banking institution of national standing appointed by the Company.

"Reference Treasury Dealer" means a primary United States Government securities dealer in New York City appointed by the Company.

"Reference Treasury Dealer Quotation" means, with respect to each Reference Treasury Dealer and any Redemption Date, the average, as determined by the Company and delivered in writing to the Trustee, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount and quoted in writing to the Company by such Reference Treasury Dealer at 5:00 p.m. on the third Business Day in New York City preceding such Redemption Date).

The Trustee shall not be responsible for the calculation of the Redemption Price. The Company shall calculate the Redemption Price and promptly notify the Trustee thereof.

In the event of redemption of this Note in part only, a new Note or Notes of this series for the unredeemed portion hereof will be issued in the name of the Holder hereof upon the surrender hereof. The Notes will not have a sinking fund.

If an Event of Default with respect to the Notes of this series shall occur and be continuing, the principal of the Notes of this series may be declared due and payable in the manner, with the effect and subject to the conditions provided in the Indenture.

The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the Notes of each series to be affected under the Indenture at any time by the Company and the Trustee with the consent of the Holders of not less than a majority in principal amount of the Notes at the time Outstanding of each series to be affected. The Indenture also contains provisions permitting the Holders of specified percentages in principal amount of the Notes of each series at the time Outstanding, on behalf of the Holders of all Notes of such series, to waive compliance by the Company with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Note shall be conclusive and binding upon such Holder and upon all future Holders of this Note and of any Note issued upon the registration of transfer hereof or in exchange hereof or in lieu hereof, whether or not notation of such consent or waiver is made upon this Note.

No reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and interest on this Note at the times, place and rate, and in the coin or currency, herein prescribed.

As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Note is registrable in the Security Register, upon surrender of this Note for registration of transfer at the office or agency of the Company for such purpose, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar and duly executed by, the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Notes of this series, of authorized denominations and of like tenor and for the same aggregate principal amount, will be issued to the designated transferee or transferees. No service charge shall be made for any such registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith.

Prior to due presentment of this Note for registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name this Note is registered as the owner hereof for all purposes, whether or not this Note be overdue, and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary.

The Notes of this series are issuable only in registered form without coupons in denominations of $1,000 and any integral multiple thereof. As provided in the Indenture and subject to certain limitations therein set forth, Notes of this series are exchangeable for a like aggregate principal amount of Notes of this series of a different authorized denomination, as requested by the Holder surrendering the same upon surrender of the Note or Notes to be exchanged at the office or agency of the Company.

This Note shall be governed by, and construed in accordance with, the internal laws of the State of New York.


ABBREVIATIONS

The following abbreviations, when used in the inscription on the face of this instrument, shall be construed as though they were written out in full according to applicable laws or regulations:

TEN COM- as tenants in            UNIF GIFT MIN ACT- ______ Custodian _______
        common                                     (Cust)            (Minor)
TEN ENT- as tenants by the
         entireties                         under Uniform Gifts to
JT TEN-  as joint tenants                          Minors Act
        with right of
        survivorship and                ________________________
        not as tenants                      (State)
        in common

Additional abbreviations may also be used though not on the above list.

FOR VALUE RECEIVED, the undersigned hereby sell(s) and transfer(s) unto

(please insert Social Security or other identifying number of assignee)

PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING POSTAL ZIP CODE OF ASSIGNEE

.........
the within Note and all rights thereunder, hereby irrevocably constituting and appointing

.........
agent to transfer said Note on the books of the Company, with full power of substitution in the premises.

Dated: .........

.........

NOTICE: The signature to this assignment must correspond with the name as written upon the face of the within instrument in every particular without alteration or enlargement, or any change whatever.


EXHIBIT B

CERTIFICATE OF AUTHENTICATION

This is one of the Senior Notes referred to in the within-mentioned Indenture.

DEUTSCHE BANK TRUST COMPANY
AMERICAS, as Trustee

By:
Vice President

Exhibit 4.16
SUPPLEMENTAL INDENTURE

THIS SUPPLEMENTAL INDENTURE (this "Supplemental Indenture") is made and entered into as of the 30th day of June, 2005 between Mississippi Power Company, a Mississippi corporation (the "Company"), and Deutsche Bank Trust Company Americas, a New York banking corporation, in its capacity as trustee (the "Trustee") under the Indenture (hereinafter described), evidencing the agreement of the parties hereto.
WITNESSETH:

WHEREAS, the Company and the Trustee, through its predecessors, are parties to that certain Indenture dated as of September 1, 1941, as supplemented and amended (the "Indenture");

WHEREAS, the Company plans to redeem its First Mortgage Bonds, 6?% Series due December 1, 2025 in the aggregate principal amount of $30,000,000 (the "Bonds") on December 1, 2005 (the "Redemption");

WHEREAS, the Company plans to deposit, on the date hereof, with the Trustee amounts sufficient to effectuate the Redemption in order to allow for the defeasance of the Indenture; and

WHEREAS, pursuant to Sections 17.01(c) and 17.01(i) of the Indenture, the Company and the Trustee desire to enter into this Supplemental Indenture to clarify certain terms and provisions of the Indenture and to establish the terms and conditions for a fund pursuant to Article IX and Section 13.01 of the Indenture in order to effectuate the Redemption and the defeasance of the Indenture.

NOW, THEREFORE, FOR AND IN CONSIDERATION of the premises, the mutual promises, covenants and agreements contained herein, and other good and valuable consideration, the receipt and sufficiency of which are hereby expressly acknowledged, the parties hereto hereby agree as follows:

ARTICLE I

Agreement

1.01 Provision for Redemption of the Bonds and Clarification. Pursuant to Sections 17.01(c) and 17.01(i) of the Indenture, the Company and the Trustee hereby agree that, in order to effectuate the Redemption and the defeasance of the Indenture, for purposes of Article IX and Section 13.01 of the Indenture, "money in a sufficient amount" and "money," respectively, shall mean (i) cash in U.S. Dollars, (ii) U.S. Government Obligations which mature at least one day prior to the applicable payment date and have a face value as of the date of the deposit thereof, or (iii) a combination thereof, in each case in an amount as will be sufficient to pay and discharge the principal of and premium (if any) and interest on the bonds due and payable on the stated maturity (or date of redemption, if applicable); provided, however, that in the case of subsections
(ii) and (iii) above, the Trustee shall have received irrevocable instructions from the Company to apply such money or the proceeds of such U.S. Government Obligations to said payments with respect to the bonds; provided, further, that U.S. Government Obligations means securities that are direct, noncallable, nonredeemable obligations of, or noncallable, nonredeemable obligations guaranteed by, the United States of America for the timely payment of which obligation or guarantee the full faith and credit of the United States of America is pledged, or funds consisting solely of such securities, including funds managed by the Trustee.

1.02 Full Force and Effect. Except as expressly set forth herein and as otherwise supplemented, the Indenture shall be and remain in full force and effect as originally written, and shall constitute the legal, valid, binding and enforceable obligations of the Trustee and the Company.

1.03 Counterparts. This Supplemental Indenture may be executed in any number of counterparts and by different parties hereto in separate counterparts, each of which, when so executed and delivered, shall be deemed to be an original and all of which counterparts, taken together, shall constitute but one and the same instrument.

1.04 Successors and Assigns. This Supplemental Indenture shall be binding upon and inure to the benefit of the successors and permitted assigns of the parties hereto.


IN WITNESS WHEREOF, the parties have executed this Supplemental Indenture as of the date first above written.

MISSISSIPPI POWER COMPANY

[SEAL]

By:
Frances V. Turnage Vice President, Chief Financial Officer and Treasurer

DEUTSCHE BANK TRUST COMPANY AMERICAS

[SEAL]

By:
Susan Johnson Vice President

Exhibit 5.1

TROUTMAN SANDERS LLP
ATTORNEYS AT LAW
A LIMITED LIABILITY PARTNERSHIP

TROUTMAN SANDERS LLP
ATTORNEYS AT LAW
A LIMITED LIABILITY PARTNERSHIP

BANK OF AMERICA PLAZA
600 PEACHTREE STREET, N.E. - SUITE 5200
ATLANTA, GEORGIA 30308-2216
www.troutmansanders.com
TELEPHONE: 404-885-3000

June 30, 2005

Mississippi Power Company
2992 West Beach
Gulfport, Mississippi 39501

Re: Registration Statement on Form S-3

Ladies and Gentlemen:

We have acted as counsel to Mississippi Power Company (the "Company") in connection with the Registration Statement, on Form S-3 (Registration Statement Nos. 333-108156, 333-108156-01 and 333-108156-02) (the "Registration Statement"), relating to $30,000,000 aggregate principal amount of the Company's Series G 5.40% Senior Notes due July 1, 2035 (the "Notes"). The Notes will be issued pursuant to the Senior Note Indenture dated as of May 1, 1998 between the Company and Deutsche Bank Trust Company Americas (formerly known as Bankers Trust Company), as trustee (the "Trustee"), as heretofore supplemented and amended and as further supplemented and amended by a Seventh Supplemental Indenture dated as of June 30, 2005 (collectively, the "Indenture").

We have examined the Registration Statement and the Indenture, which has been filed with the Securities and Exchange Commission (the "Commission") as an exhibit to the Registration Statement. We have also examined the originals, or duplicates or certified or conformed copies, of such records, agreements, instruments and other documents and have made such other and further investigations as we have deemed relevant and necessary in connection with the opinions expressed herein. As to questions of fact material to this opinion, we have relied upon certificates of public officials and of officers and representatives of the Company.

In rendering the opinions set forth below, we have assumed the genuineness of all signatures, the legal capacity of natural persons, the authenticity of all documents submitted to us as originals, the conformity to original documents of all documents submitted to us as duplicates or certified or conformed copies and the authenticity of the originals of such latter documents. We have also assumed that the Indenture is the valid and legally binding obligation of the Trustee.

Based upon the foregoing, and subject to the qualifications and limitations stated herein, we are of the opinion that the Notes are valid, binding and legal obligations of the Company enforceable against the Company in

ATLANTA o HONG KONG o LONDON o NEW YORK o NORFOLK o RALEIGH o RICHMOND o

TYSONS CORNER o VIRGINIA BEACH o WASHINGTON, D.C.


Mississippi Power Company
June 30, 2005

Page 2

accordance with their terms (subject to applicable bankruptcy, insolvency, reorganization, moratorium and other similar laws relating to or affecting creditors' rights generally and to general principles of equity, whether considered in a proceeding at law or in equity). In rendering the foregoing opinion, with respect to matters of New York law, we have relied on the opinion of Dewey Ballantine LLP attached hereto as Annex I.

We are members of the State Bar of Georgia and we do not express any opinion herein concerning any law other than the law of the State of Georgia and the federal law of the United States and, to the extent set forth herein, the law of the State of New York.

We hereby consent to the filing of this opinion with the Commission as an exhibit to the Registration Statement and to the statements with respect to our name under the heading "Legal Matters" in the prospectus forming part of the Registration Statement. In giving the foregoing consent, we do not hereby admit that we come within the category of persons whose consent is required under
Section 7 of the Securities Act of 1933, as amended, or the rules and regulations of the Commission thereunder. This opinion may not be furnished or quoted to, or relied upon by, any other person for any purpose, without our prior written consent.

Very truly yours,

/s/ TROUTMAN SANDERS LLP
TROUTMAN SANDERS LLP


June 30, 2005

Troutman Sanders LLP
600 Peachtree Street, N.E.
Suite 5200
Atlanta, Georgia 30308

RE: Registration Statement on Form S-3

Ladies and Gentlemen:

We have acted as counsel to the underwriter in connection with the Registration Statement on Form S-3 (Registration Statement Nos. 333-108156, 333-108156-01 and 333-108156-02 ) (the "Registration Statement"), relating to $30,000,000 aggregate principal amount of Series G 5.40% Senior Notes due July 1, 2035 (the "Notes") of Mississippi Power Company (the "Company"). The Notes will be issued pursuant to the Senior Note Indenture dated as of May 1, 1998 between the Company and Deutsche Bank Trust Company Americas (formerly known as Bankers Trust Company), as trustee (the "Trustee"), as heretofore supplemented and amended and as further supplemented and amended by a Seventh Supplemental Indenture dated as of June 30, 2005 (collectively, the "Indenture").

We have examined the Registration Statement and the Indenture, which has been filed with the Securities and Exchange Commission as an exhibit to the Registration Statement. We have also examined the originals, or duplicates or certified or conformed copies, of such records, agreements, instruments and other documents and have made such other and further investigations as we have deemed relevant and necessary in connection with the opinions expressed herein. As to questions of fact material to this opinion, we have relied upon certificates of public officials and of officers and representatives of the Company.

In rendering the opinions set forth below, we have assumed the genuineness of all signatures, the legal capacity of natural persons, the authenticity of all documents submitted to us as originals, the conformity to original documents of all documents submitted to us as duplicates or certified or conformed copies and the authenticity of the originals of such latter documents. We have also assumed that the Indenture is the valid and legally binding obligation of the Trustee.


June 30, 2005

Page 2

Based upon the foregoing, and subject to the qualifications and limitations stated herein, we are of the opinion that the Notes are valid, binding and legal obligations of the Company enforceable against the Company in accordance with their terms (subject to applicable bankruptcy, insolvency, reorganization, moratorium and other similar laws relating to or affecting creditors' rights generally and to general principles of equity, whether considered in a proceeding at law or in equity).

We are members of the State Bar of New York and we do not express any opinion concerning any law other than the law of the State of New York.

This opinion is furnished solely for your benefit in connection with your rendering an opinion to the Company to be filed as Exhibit 5.1 to the Registration Statement and we hereby consent to your attaching this opinion as an annex to such opinion. This opinion may not be relied upon by you for any other purpose, or quoted to or relied upon by any other person, firm or entity for any purpose, without our prior written consent. In giving our consent to your attaching this opinion to the opinion being rendered by you, we do not thereby admit that we come within the category of persons whose consent is required under Section 7 of the Securities Act of 1933, as amended, or the rules and regulations of the Securities and Exchange Commission thereunder.

Very truly yours,

/s/ DEWEY BALLANTINE LLP
 DEWEY BALLANTINE LLP


                                                                                                                   Exhibit 12.1
                                                                                                                    6/20/2005
                            MISSISSIPPI POWER COMPANY
              Computation of ratio of earnings to fixed charges for
                     the five years ended December 31, 2004
                       and the year to date March 31, 2005

                                                                                                                            Three
                                                                                                                            Months
                                                                                                                            Ended
                                                                                         Year ended December 31,         March 31,
                                                               --------------------------------------------------------------------
                                                               2000         2001         2002         2003       2004        2005
                                                               ----         ----         ----         ----       ----        ----
                                                               ------------------------------Thousands of Dollars------------------
EARNINGS AS DEFINED IN ITEM 503 OF REGULATION S-K:
Earnings before income taxes                             $   91,457   $  106,391   $   120,905   $  120,827   $131,299    $  28,193
Interest expense, net of amounts capitalized                 28,101       23,568        18,650       14,369     13,724        4,175
Distributions on mandatorily redeemable preferred securities  2,712        2,712         3,016        2,520        630            0
AFUDC - Debt funds                                                0            0             0            0          0            0

                                                         ----------   ----------   -----------   ----------   --------    ---------
Earnings as defined                                      $  122,270   $  132,671   $   142,571   $  137,716   $145,653    $  32,368
                                                         ==========   ==========   ===========   ==========   ========    =========




FIXED CHARGES AS DEFINED IN ITEM 503 OF REGULATION S-K:
Interest on long-term debt                               $   24,595   $   18,185   $    14,319   $   10,116   $  9,067    $   2,461
Interest on affiliated loans                                      0        1,002           206           55      2,218          791
Interest on interim obligations                               2,450        1,518             0            0          0            0
Amort of debt disc, premium and expense, net                  1,313          954         1,021        1,178      1,080          264
Other interest charges                                         (257)       1,909         3,104        3,020      1,359          659
Distributions on mandatorily redeemable preferred securities  2,712        2,712         3,016        2,520        630            0
                                                         ----------   ----------   -----------   ----------   --------    ---------
Fixed charges as defined                                 $   30,813   $   26,280   $    21,666   $   16,889   $ 14,354    $   4,175
                                                         ==========   ===========  ===========   ==========   ========    =========



RATIO OF EARNINGS TO FIXED CHARGES                            3.97         5.05          6.58         8.15      10.15         7.75
                                                             =====        =====         =====        =====     ======        =====