K
• KansasCity Power and Light Company
• KEMElectric Cooperative
• KentuckyUtilities
• KeySpan
• KinderMorgan Energy Partners
L
• LG&Eand KU Energy
• LongIsland Lighting Company
• LouisvilleGas & Electric
• Luminant
M
• MadisonGas and Electric
• MainstreamEnergy Corporation
• McKenzieElectric Cooperative
• McLeanElectric Cooperative
• MDUResources
• MGEEnergy
• MidAmericanEnergy Company
• MississippiPower
• MontanaPower Company
• Mor-Gran-SouElectric Cooperative
• MXenergy
N
• NaturalCurrents Energy Services
• NevadaPower Company
• NextEraEnergy
• NodakElectric Cooperative
• NorthAmerican Power
• NorthCentral Electric Cooperative
• NortheastUtilities
• NorthernPlains Electric Cooperative
• NorthernStates Power Company
• NorthWesternCorporation
• NRGEnergy
• NSTAR
• NuclearManagement Company
O
• O'BrienCogeneration Inc.
• OceanaEnergy
• OhioValley Electric Corporation
• OklahomaGas & Electric
• OldDominion Power
• Oliver-MercerElectric Cooperative
• OtterTail Corporation
P
• PacificGas and Electric Company
• PacifiCorp
• PalmettoElectric
• PandaEnergy International
• PECOEnergy Company
• Pepco
• PepcoHoldings
• PNMResources
• PortlandGeneral Electric
• PortlandRailway, Light and Power Company
• PPL(utility)
• PrismaEnergy International
• ProgressEnergy Inc
• PublicService Enterprise Group
• PugetSound Energy
Q
• Qualitrol
R
• ReedyCreek Energy Services
• RichlandElectric Cooperative
• RiverstoneHoldings
• GenOnEnergy
