The Power and Gas Utilities in Which We Serve
Constellation offers expertise across multiple markets with knowledgeable personnel prepared to offer energy solutions that help you mitigate risks and meet your objectives.
Arkansas Centerpoint Energy
California City of Long BeachCity of VernonPacific Gas and ElectricSan Diego Gas and ElectricSouthern California Edison
Colorado Black Hills Energy Black Hills Energy (Source Gas)
Washington, DC Washington Gas
Delaware Delmarva Power
GeorgiaAtlanta Gas Light Company
Iowa Alliant (Interstate Power & Light) Black Hills Energy MidAmerican Energy
Illinois AmerenMidAmerican EnergyNicor GasNorthshore GasPeoples GasRock Energy Cooperative
Indiana Citizens Energy GroupCitizens Gas of WestfieldIndiana Utilities CorporationNorthern Indiana Public Service CompanyOhio Valley Gas
Sycamore Gas CompanyVectren—NorthVectren—South
Kansas Atmos EnergyBlack Hills EnergyKansas Gas ServiceMidwest Energy, Inc.
Kentucky Atmos EnergyCity of TompkinsvilleColumbia Gas of KentuckyDelta Natural Gas CompanyDuke Energy KentuckyLouisville Gas and Electric CompanyRichmond Utilities Board
Massachusetts Berkshire GasBoston Gas Company (National Grid)Colonial Gas Company (National Grid)Columbia Gas of MassachusettsEssex Gas Company (National Grid)NSTAR
Maryland Baltimore Gas & ElectricColumbia of MarylandWashington Gas
Michigan Consumers EnergyDTE Energy (Michcon)Michigan Gas UtilitiesSEMCO Energy Gas Company
Minnesota CenterPoint EnergyGreat Plains Natural GasGreater Minnesota GasMinnesota Energy ResourcesXcel Energy
Missouri AmerenEmpire DistrictLiberty UtilitiesSpire (Laclede Gas) Spire (Missouri Gas Energy)Summit Natural Gas
Mississippi Atmos Energy CenterPoint Energy (Entex)
Nebraska Black Hills EnergyBlack Hills Energy (Source Gas)MidAmerican EnergyNorthWestern Energy
New Jersey Elizabethtown GasNew Jersey Natural GasPSEGSouth Jersey Gas
New YorkCentral HudsonCon EdisonNational FuelNational Grid (Niagara Mohawk)NYSEGOrange & RocklandRochester Gas & Electric
North Carolina Piedmont Natural Gas PSNC Energy
North Dakota MDU Resources Group
Ohio Brainard Gas Corp.Columbia Gas of OhioDominion East OhioDominion West OhioDuke Energy (CG&E)Glenwood EnergyNortheast Ohio Natural GasOhio Gas CompanyOrwell Natural Gas CompanySurburban Natural GasThe Energy CooperativeVectren Energy Delivery of Ohio
Oklahoma CenterPoint Energy Oklahoma Natural Gas
Pennsylvania Columbia of PennsylvaniaNational FuelPECO Energy CompanyPeoples Natural GasPGWUGI Central Penn GasUGI Penn Natural Gas UGI Utilities
South Carolina Piedmont Natural Gas
South Dakota MidAmerican EnergyMontana Dakota UtilitiesNorthWestern Energy
Gas Utilities
Tennessee Atmos EnergyCity of DyersbergGreater Dickson Gas AuthorityJackson Energy Authority Knoxville Utilities BoardLouden Utilities BoardMemphis Light Gas & WaterPiedmont Natural GasRockwood Water Sewer & Natural Gas
TexasAtmos Energy CenterPoint Energy CPS EnergyTexas Gas Service
Virginia Atmos EnergyCity of DanvilleCity of RichmondColumbia Gas of VirginiaRGC Resources (Roanoke Gas)Virginia Natural GasWashington Gas
Wisconsin Alliant Energy City Gas Company Madison Gas & ElectricMidwest Natural GasWe Energies (Wisconsin Electric Power)We Energies (Wisconsin Gas)Wisconsin Public ServiceXcel Energy (NSP)
West Virginia Dominion Hope Gas Inc.Mountaineer Gas Co.Peoples Natural Gas (Equitable Gas)Union Oil & Gas
Wyoming Black Hills (Source Gas)
California Pacific Gas and ElectricSan Diego Gas and Electric Southern California Edison
Connecticut Eversource (Connecticut Light and Power)The United Illuminating Company
Washington, DC Pepco
Delaware Delmarva Power
Illinois AmerenComEdMidAmerican Energy
Massachusetts Eversource (WMECO)National GridNSTARUnitil
Maryland Baltimore Gas & ElectricDelmarva PowerPepcoPotomac Edison
Maine Central Maine Power Emera Maine
Michigan Consumers EnergyDTE EnergyUpper Peninsula Power CompanyWE EnergiesWisconsin Public Service Corporation
New HampshireEversource (PSNH)Liberty Utilities (Granite State Electric) Unitil
New Jersey Atlantic City ElectricJersey Central Power & LightPSEG
New York Central HudsonCon EdisonNYSEGNational Grid (Niagara Mohawk) Orange & RocklandRochester Gas & Electric
Ohio AEP OhioDayton Power & LightDuke Energy (CG&E)Ohio EdisonThe Illuminating Company (Cleveland Electric)Toledo Edison
Oregon Pacific Power Portland General Electric Co.
Pennsylvania Duquesne LightMet-EdPECO Energy CompanyPenelecPennPowerPPL Electric UtilitiesWest Penn Power
Rhode Island National Grid (Narragansett Electric Co.)
Texas AEP Texas CentralAEP Texas NorthCenterpoint EnergyNueces Electric CooperativeOncorSharyland UtilitiesTNMP
Power Utilities
constellation.com
August 2017
