˙American ElectricPower
˙Ambit Energy
˙Austin Energy
˙Conservice Energy
˙CPS Energy
˙CenterPoint Energy
˙dPi Energy
˙Direct Energy
˙Electric DatabasePublishing
˙Champion Energy
˙Coserv Electric
˙Denton Municipal Electric
˙Entergy
˙First Texas EnergyCorporation
˙Garland Power and Light
˙GDF SUEZ Energy Resources
˙Lower Colorado River Authority
˙Luminant
˙Reliant Energy
˙Texas Electric ServiceCompany
˙Think Energy
˙Magic Valley
˙Oncor Electric (Formerly TXU)
˙Stream Energy
Utah
˙Intermountain Power Agency
˙PacifiCorp (Rocky Mountain Power)
Vermont
˙Central Vermont Public Service Corp.
˙Green Mountain Power
Virginia
˙Allegheny Power
˙Appalachian Power
˙Danville Utilities
˙Delmarva Power (subsidiary of Pepco Holdings)
˙Dominion Virginia Power
˙NOVEC
˙Power Systems Electric
˙Rappahannock ElectricCooperative
˙Virginia Tech Electric
Washington
˙Avista Utilities
˙Benton Public UtilityDistrict
˙Chelan County Public Utility District
˙Cowlitz County PublicUtility District
˙Douglas County Public Utility District
˙Grant County Public Utility District
˙Klickitat PublicUtility District
˙Mason County PublicUtility District 3
˙PacifiCorp (Pacific Power)
˙Puget Sound Energy
˙Seattle City Light
˙Snohomish County Public Utility District (PUD)
˙Tacoma Power
West Virginia
˙Allegheny Energy
˙Appalachian Power
˙Wheeling Electric Power (AEP Ohio)
Wisconsin
˙Dairyland Power Co-op
˙We Energies
˙Wisconsin Public Service Corporation
˙Wisconsin Power and Light Company (a part of Alliant Energy)
˙Madison Gas and Electric
˙Xcel Energy
Wyoming
˙Cheyenne Light, Fuel & Power
˙High Plains Power
˙Lower Valley Energy
˙PacifiCorp (Rocky Mountain Power)
˙High West Energy
