Investor-owned utilities in the United States

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Investor-owned utilities (IOUs) are private enterprises[1] acting as public utilities.

Investor-owned electric power delivery utilities with assets in the United States of America[2][3][4]
Parent company Operating company Operating states
AES Corporation (AES) AES Indiana, formerly Indianapolis Power & Light IN
Dayton Power and Light OH
Allete (ALE) Minnesota Power MN
Superior Water, Light and Power WI
Alliant Energy (LNT) Interstate Power and Light IA
Wisconsin Power and Light WI
Ameren (AEE) Ameren Illinois IL
Ameren Missouri MO
American Electric Power (AEP) AEP Ohio OH, 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
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 LA
Consolidated Edison (ED) Consolidated Edison NY
Orange and Rockland Utilities NY, NJ, PA
CMS Energy (CMS) Consumers Energy MI
Dominion Energy Dominion Virginia Power VA
Dominion North Carolina Power NC
DQE Duquesne Light PA
DTE Energy Electric Company (DTE) Detroit Edison MI
Duke 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 CA
Emera Bangor Hydro Electric ME
Maine Public Service ME
Énergir Central Vermont Public Service VT
Green Mountain Power VT
Entergy (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, KS
Eversource Energy (ES) Connecticut Light & Power CT
Public Service New Hampshire NH
Western Massachusetts Electric MA
Exelon (EXC) Commonwealth Edison IL
Philadelphia Electric PA
Baltimore Gas & Electric MD
Potomac Electric Power DC, MD
Delmarva Power DE, MD
Atlantic City Electric NJ
FirstEnergy (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 PA
Hawaiian Electric Industries (HE) Hawaii Electric Company HI
Hawaii Electric Light Company HI
Maui Electric Company HI
Iberdrola (IBE.MC) Rochester Gas & Electric NY
New York State Electric & Gas NY
Central Maine Power ME
Integrys Energy Group Wisconsin Public Service Corporation WI
Upper Peninsula Power Company MI
ITC 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 WI
Berkshire Hathaway Energy MidAmerican Energy Company IA, IL, SD, NE
Pacificorp--Pacific Power OR, CA, WA
Pacificorp--Rocky Mountain Power UT, WY, ID
NV Energy NV, CA
National 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 NY
NextEra 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 TX
NSTAR (NSARO) Boston Edison MA
Cambridge Electric Light MA
Commonwealth Electric MA
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 AZ
PNM Resources (PNM) Public Service Company of New Mexico NM
Texas-New Mexico Power TX
Portland General Electric (POR) Portland General Electric OR
PPL 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 CA
Southern Company (SO) Alabama Power AL
Georgia Power GA
Mississippi Power MS
TECO Energy Tampa Electric FL
UGI Corporation (UGI) United Electric Company PA
UIL Holdings Corporation The United Illuminating Company CT
UniSource Energy Tucson Electric Power AZ
UNS Electric AZ
Unitil (UTL) Unitil Energy MA, NH
Fitchburg Gas & Electric MA
Vectren (VVC) Southern Indiana Gas and Electric IN
Wisconsin Energy Corporation We Energies WI
Xcel Energy (XEL) Northern States Power Company MN, ND, SD, WI
Public Service Colorado CO
Southwestern Public Service NM, TX

References

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  1. ^ "Differences Between Publicly and Investor-Owned Utilities". California Energy Commission. Retrieved 29 January 2019.
  2. ^ "Energy Dictionary". Archived from the original on 2017-11-29. Retrieved 2012-08-01.
  3. ^ "Electric Utilities". www.utilityconnection.com. Archived from the original on 2017-10-27. Retrieved 2012-08-01.
  4. ^ Pentland, William. "Investor-Owned Utilities: Asleep at the Switch or Above the Law?". Forbes.