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
|
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
|