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AmerenUE
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First Energy Corporation
|
PPL
|
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Bonneville Power Admin.
|
FPL Group
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Progress Energy
|
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Constellation Generation
|
Kansas City Power & Light
|
Southern California Edison
|
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CPS Energy
|
Mirant Corporation
|
Southern Company
|
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Dominion Resources
|
Nashville Electric Service
|
TECO Energy
|
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DTE Energy
|
Nebraska Public Power District
|
Tennessee Valley Authority
|
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Duke Energy
|
Omaha Public Power District
|
Westar Energy
|
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Entergy
|
Pepco Holding Inc.
|
Xcel Energy
|
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Exelon
|
Portland General Electric
|
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