Investor-owned utilities (IOUs) are private enterprises acting as public utilities.
+ Investor-owned electric power delivery utilities with assets in the United States of America Parent company Operating company Operating states AES Corporation (AES)AES Indiana, formerly Indianapolis Power & LightIN Dayton Power and LightOH Algonquin Power & Utilities Liberty Utilities AZ, AR, CA, GA, IN, IA, KS, MA, MO, NH, NY, OK, TXAllete (ALE) Minnesota PowerMN Superior Water, Light and PowerWIAlliant Energy (LNT) Interstate Power and LightIA Wisconsin Power and Light WIAmeren (AEE)Ameren IllinoisIL Ameren MissouriMOAmerican Electric Power (AEP) AEP OhioOH, WV AEP Texas TX Appalachian Power TN, VA, WV Indiana Michigan Power IN, MI Kentucky Power KY Public Service Company of Oklahoma OK Southwestern Electric Power TX American Transmission Company American Transmission Company WI, MI Avangrid Rochester Gas & Electric NY New York State Electric & Gas NY Central Maine Power ME The United Illuminating Company CT Avista Corporation (AVA) Avista Utilities ID, WA Black Hills Corporation (BKH) Black Hills Energy CO, SD, IA, KS, NE, WY, MT, AR CenterPoint Energy (CNP) CenterPoint Energy TX Fortis Inc. (FTS) Central Hudson Gas & Electric NY Cleco Holdings Cleco LAConsolidated Edison (ED) Consolidated Edison NY Orange and Rockland Utilities NY, NJ, PA CMS Energy (CMS)Consumers Energy MIDominion Energy Dominion Virginia Power VA Dominion North Carolina Power NC DQE Duquesne Light PA DTE Energy Electric Company (DTE) Detroit Edison MIDuke Energy (DUK) Duke Energy Carolinas NC, SC Duke Energy Progress NC, SC Duke Energy Indiana IN Duke Energy Ohio OH Duke Energy Kentucky KY Duke Energy Florida FL Edison International (EIX)Southern California Edison CAÉnergir Central Vermont Public Service VT Green Mountain Power VTENMAX Versant Power MEEntergy (ETR) Entergy Arkansas AR Entergy Louisiana LA Entergy Gulf States LA Entergy Mississippi MS Entergy New Orleans LA Entergy Texas TX Evergy (EVRG) Evergy MO, KSEversource Energy (ES) Connecticut Light & Power CT NSTAR Electric MA Public Service New Hampshire NH Western Massachusetts Electric MAExelon (EXC)Commonwealth Edison IL Philadelphia Electric PA Baltimore Gas & Electric MD Potomac Electric Power DC, MD Delmarva Power DE, MD Atlantic City Electric NJFirstEnergy (FE) Ohio Edison OH Cleveland Electric Illuminating OH Toledo Edison OH Pennsylvania Power PA Penelec PA Met-Ed PA Jersey Central P&L NJ Allegheny Energy PA Monongahela Power WV Potomac Edison MD, WV, VA West Penn PAHawaiian Electric Industries (HE) Hawaii Electric Company HI Hawaii Electric Light Company HI Maui Electric Company HIIntegrys Energy Group Wisconsin Public Service Corporation WI Upper Peninsula Power Company MIITC Holdings ITC Transmission MI Michigan Electric Transmission Company MI ITC Midwest IA, MN, IL, MO ITC Great Plains OK, KS MDU Resources (MDU) Montana-Dakota Utilities MT, ND, SD, WY MGE Energy (MGEE)Madison Gas and Electric WIBerkshire Hathaway Energy MidAmerican Energy Company IA, IL, SD, NE Pacificorp--Pacific Power OR, CA, WA Pacificorp--Rocky Mountain Power UT, WY, IDNV Energy NV, CANational Grid plc (NGG) New England Power MA, NH, VT, CT, ME Massachusetts Electric MA Nantucket Electric MA Granite State Electric NH Niagara Mohawk Power NY Long Island Lighting NYNextEra Energy (NEE)Florida Power & Light FL Gulf Power FL NiSource (NI) Northern Indiana Public Service Company IN NorthWestern Corporation (NWE) NorthWestern Energy SD, MT, NE NRG Energy (NRG) Reliant Energy TXNV EnergyBerkshire Hathaway Inc.NV OGE Energy Corporation (OGE)Oklahoma Gas & Electric OK, AR Otter Tail Corporation (OTTR) Otter Tail Power ND, MN, SD PG&E Corporation (PCG)Pacific Gas & Electric Company CA Pinnacle West Capital (PNW)Arizona Public Service AZPNM Resources (PNM) Public Service Company of New Mexico NM Texas-New Mexico Power TX Portland General Electric (POR) Portland General Electric ORPPL Corporation (PPL) PPL Electric Utilities PA Louisville Gas & Electric KY Kentucky Utilities KY Rhode Island Energy RI Public Service Enterprise Group (PEG) Public Service Electric & Gas NJ Puget Energy Puget Sound Energy WA SCANA (SCG) South Carolina Electric & Gas Company SC Sempra Energy (SRE)San Diego Gas & Electric CASouthern Company (SO) Alabama Power AL Georgia Power GA Mississippi Power MS TECO Energy Tampa Electric FL UGI Corporation (UGI) United Electric Company PAUniSource Energy Tucson Electric Power AZ UNS Electric AZUnitil (UTL) Unitil Energy MA, NH Fitchburg Gas & Electric MA Vectren (VVC) Southern Indiana Gas and Electric IN Wisconsin Energy Corporation We Energies WIXcel Energy (XEL)Northern States Power Company MN, ND, SD, WI Public Service Colorado CO Southwestern Public Service NM, TX
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