SIXTH AMENDMENT TO
POWER PURCHASE AGREEMENT



| | 1. | Appendix 2 Section f (iv) is amended by adding the following language at the end of said section: "The service time heat correction curve in Exhibit 1 to this Appendix 2 will be reset upon the reconditioning or rebuilding of the Project's combustion turbine compressor.  At the completion of the reconditioning or rebuilding, the service time heat rate correction curve will be reset to 1.01.  The service time heat rate correction curve approved by Buyer pursuant to this Section, to be utilized subsequent to the reconditioning or rebuilding of the Project's combustion turbine compressor, is  attached hereto as  Exhibit 1A to Appendix 2.  Until such time as the reconditioning or rebuilding of the Project's combustion turbine compressor is completed, the current service time heat rate correction curve will remain in full force and effect."
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| | 2. | Appendix 9 is deleted in its entirety and replaced with the  restated      Appendix 9, attached hereto as Exhibit A. Performance Factor calculations shall be calculated in the revised format as outlined in the restated Appendix 9 retroactively to January 1, 2002.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
| | 3. | This Sixth Amendment may be executed in any number of counterparts by the parties hereto, each of which counterparts when so executed shall be an original, but all the counterparts shall together constitute one and the same instrument.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
| | 4. | This Sixth Amendment and the rights and obligations of the parties hereunder shall be governed by and construed in accordance with the laws of the State of Wisconsin.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

IN WITNESS WHEREOF, the parties hereto have executed this sixth Amendment on the date first set forth above.

|WITNESSED BY:/s/  Karen J. Fincher   | LSP-WHITEWATER LIMITED PARTNERSHIP
By: LSP-Whitewater, Inc.
Its General Partner
By:  /s/  Paul F. Tegen
Its:   V.P. Operations
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|WITNESSED BY:/s/  Mary Ann S. Prager | WISCONSIN ELECTRIC POWER COMPANY
By:  /s/  Randall Van Aarsten
Its:   Director - Trading & Operations