| AEP Ohio (American Electric Power) |
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| AMP (American Municipal Power) |
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| BGE Smart Energy Savers Program (Baltimore Gas and Electric) |
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| California Utility Customers |
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| ComEd (Commonwealth Edison) |
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| Consumers Energy |
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| Dominion (Dominion Virginia Power) |
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| Dominion Power North Carolina |
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| DP&L (Dayton Power And Light) |
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| DTE Energy (Detroit Edison) |
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| Efficiency Maine |
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| Efficiency Vermont |
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| LIPA (Long Island Power Authority) |
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| Michigan Utility Customers |
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| NJCEP (New Jersey's Clean Energy Program) |
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| PECO Energy Company |
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| PG&E/SCE |
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| PowerSavers |
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| SCE&G (South Carolina Electric And Gas) |
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| Silicon Valley Power |
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| SMECO (Southern Maryland Electric Cooperative) |
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| Southern California |
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| Wisconsin Focus On Energy |
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| Xcel Energy (Colorado Customers) |
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| Xcel Energy (Minnesota Customers) |
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