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| 1.   | The      Elected Percentage is hereby confirmed by both parties to be 90% as of the      date hereof for all purposes under theJOA. |
|----------------|-------------------------------------------------------------------------------------------------------------------------------------|

| 2.   | The      Buy Back Option under the JOA is hereby confirmed by both parties to      require, if exercised, TVA to repurchase all of Seven States’ right,      title, and interest in and to the Purchased Assets acquired by Seven      States in both the First Seven States Closing and the Second Seven States      Closing. |
|----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 3.   | Both      parties hereby confirm that the “Loan” referred to in Section 5(e) of the      JOA includes, without limitation, the $324,995,818 Term Loan and the      $94,714,666 Incremental Term Loan A, each under that certain Credit      Agreement, dated as of September 30, 2008, between Southaven, Seven States      Power, JPMorgan Chase Bank, National Association, and the other lenders      indentified therein, the proceeds of which have been advanced to Southaven      on the date hereof. |
|----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 4.   | Both      parties hereby confirm that the “Seven States Purchase Price”, as defined      in the JOA, equals $419,710,484. |
|----------------|---------------------------------------------------------------------------------------------------------------------------------------|

| 5.   | To      the knowledge of each of TVA and Southaven, there are no existing defaults      under the JOA. |
|----------------|--------------------------------------------------------------------------------------------------------|

| 6.   | All      other terms and conditions of the JOA shall be and remain unchanged except      as specifically provided herein. |
|----------------|---------------------------------------------------------------------------------------------------------------------------|

| 7.   | Capitalized      terms used in this Agreement, including the recitals, and not otherwise      defined herein, shall have the respective meanings set forth in the      JOA. |
|----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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|   | SEVEN      STATES SOUTHAVEN, LLC,                                                                      |
|--------|--------------------------------------------------------------------------------------------------------|
|   | a      Delaware limited liability company                                                              |
|   |                                                                                                   |
|   | By:           /s/      Jack W. Simmons          |
|   | Name:      Jack      W. Simmons                                          |
|   | Title:        President      and Chief Executive Officer       |
|   |                                                                                                   |
|   |                                                                                                   |
|   | TENNESSEE      VALLEY AUTHORITY                                                                        |
|   |                                                                                                   |
|   | By:           /s/      John G. Trawick          |
|   | Name:      John      G. Trawick                                          |
|   | Title:       Vice      President, Strategy, Pricing & Contracts |
|   |                                                                                                   |

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