- Allete Clean Energy
- Basin Electric – Bismarck
- Bonneville Power Admin – Vancouver
- Colorado Springs Utilities
- Con Edison Development – Haskell
- Duke Energy – Cincinnati
- Kansas City Power & Light Company- KS
- Kansas Electric Cooperatives
- LG&E and KU Energy
- Manitoba Hydro Electric Energy and Natural Gas
- Minnesota Power
- Modesto Irrigation District
- NIPSCO
- NV Energy – Moapa
- Powersouth Energy Cooperative
- San Diego Gas and Electric
- SMUD
- Southern California Edison – Irvine
- Strata Solar, LLC
- Tacoma Power – Tacoma
- Texas Municipal Power Agency
- Western Area Power Admin
- Wolverine Power Supply Cooperative
- Southern Nuclear