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Solar Utility Providers
| Utility provider | State |
| Alaska Villages Electric Cooperative | AK |
| Chugach Electric Association | AK |
| Copper Valley Electric Association | AK |
| Golden Valley Electric Association | AK |
| Kodiak Electric Association | AK |
| Municipal Light & Power | AK |
| Other | AK |
| AECO (Alabama Electric Company) | AL |
| Alabama Power | AL |
| Alabama Rural Electric Association | AL |
| Baldwin EMC | AL |
| Central Alabama Electric Co-Op | AL |
| Cherokee Electric Cooperative | AL |
| City of Athens Utilities | AL |
| City of Bessemer | AL |
| City of Bessemer Electric and Water Service | AL |
| Covington Electric Cooperative | AL |
| Huntsville Utilities | AL |
| North Alabama Electric Coop | AL |
| PowerSouth Energy Cooperative AL Inc. | AL |
| Riviera Utilities | AL |
| Sand Mountain Electric Co-Op | AL |
| Sheffield Utilities | AL |
| Srd Electrical Services | AL |
| Tennessee Valley Authority | AL |
| Wiregrass Electric Cooperative | AL |
| Other | AL |
| Arkansas Valley Electric Cooperative | AR |
| C and L Electric Co-Op Corporation | AR |
| Carroll Electric Cooperative Corporation | AR |
| Entergy | AR |
| First Electric Cooperative | AR |
| North Arkansas Electric Cooperative | AR |
| North Little Rock Electric | AR |
| Ozarks Electric Cooperative | AR |
| Paragould Light Water and Cable (PLWC) | AR |
| Petit Jean Electric Cooperative | AR |
| Spark Energy | AR |
| Other | AR |
| Amanti Electric | AZ |
| Arizona Public Service | AZ |
| City of Mesa Utilities | AZ |
| City of Safford Electric Department | AZ |
| Duncan Valley Electric Cooperative | AZ |
| Electrical District No. 2 | AZ |
| Electrical District No. 3 | AZ |
| Graham County Utilities | AZ |
| Mojave Electric Co-op | AZ |
| Navopache Electric Cooperative | AZ |
| Salt River Project | AZ |
| SRP/Salt River Project | AZ |
| Sulphur Springs Valley Electric Cooperative | AZ |
| Trico Electric Cooperative | AZ |
| Tucson Electric Power | AZ |
| Unisource | AZ |
| Xcel Energy | AZ |
| Other | AZ |
| Alameda Municipal Power | CA |
| Ambit Energy | CA |
| Anaheim Public Utilities | CA |
| Anza Electric Co-Op | CA |
| Azusa Light & Water | CA |
| Bear Valley Electric | CA |
| Burbank Water & Power | CA |
| California Public Utilities Commission | CA |
| City & County of San Francisco | CA |
| City of Banning | CA |
| City of Palo Alto Utilities | CA |
| City of Shasta Lake Electric Utility | CA |
| Colton Public Utilities and Public Service Department | CA |
| Colton Public Utilities Glendale Public Service Department | CA |
| El Cerrito Electric | CA |
| Glendale Water and Power | CA |
| Gridley Municipal Utilities | CA |
| Healdsburg Municipal Electric Department | CA |
| IGS Energy | CA |
| Imperial Irrigation District | CA |
| Lodi Electric Utility | CA |
| Los Angeles Department of Water and Power | CA |
| Marin Energy Authority | CA |
| Modesto Irrigation District | CA |
| Moreno Valley Electric Utility | CA |
| Mountain Utilities | CA |
| Pacific Gas & Electric | CA |
| PacifiCorp | CA |
| Pasadena Water & Power | CA |
| Redding Electric Utility (REU) | CA |
| Riverside Public Utilities | CA |
| Roseville Electric | CA |
| Sacramento Municipal Utility District | CA |
| San Diego Gas & Electric | CA |
| Sierra-Pacific Power | CA |
| Silicon Valley Power | CA |
| Southern California Edison | CA |
| Southern California Public Power Authority | CA |
| Surprise Valley Power | CA |
| Trinity PUD | CA |
| Turlock Irrigation District | CA |
| Valley Electric Association | CA |
| Vernon Light & Power | CA |
| Other | CA |
| Bedell Electric | CO |
| Black Hills Energy | CO |
| City of Fort Collins Utilities | CO |
| City of Loveland Water and Power | CO |
| City of Wauchula Electric | CO |
| Colorado Springs Utilities | CO |
| Delta-Montrose Electric Association | CO |
| Grand Valley Power | CO |
| GreyStone Power Corporation | CO |
| Gunnison County Electric Company | CO |
| Highline Electric Association | CO |
| Holy Cross Energy Company | CO |
| Intermountain Rural Electric Association | CO |
| Kit Carson Electric Cooperative | CO |
| La Plata Electric Association | CO |
| Lamar Light and Power | CO |
| Moon Lake Electric | CO |
| Morgan County Rural Electric Association | CO |
| Mountain View Electric Association | CO |
| Poudre Valley Rural Electric Association | CO |
| San Isabel Electric Association | CO |
| San Luis Valley Rural Electric | CO |
| San Miguel Power Association | CO |
| Southeast Colorado Power Association | CO |
| United Power Inc | CO |
| Xcel Energy | CO |
| Yampa Valley Electric Association | CO |
| Other | CO |
| Abest Power & Gas | CT |
| Ambit Energy | CT |
| Bozrah Light and Power | CT |
| Connecticut Light & Power | CT |
| Connecticut Natural Gas | CT |
| Groton Utilities | CT |
| Northeast Utilities | CT |
| United Illuminating | CT |
| Wallingford Electric | CT |
| Other | CT |
| Ambit Energy | DC |
| PEPCO | DC |
| Other | DC |
| Calpine | DE |
| City of Dover Electric Department | DE |
| City of Milford Electric Department | DE |
| Delaware Electric Cooperative | DE |
| Delmarva Power | DE |
| NRG Energy | DE |
| Town of Middletown Utilities | DE |
| Town of Smyrna | DE |
| Other | DE |
| Baugh Southeast Co-Op | FL |
| Choctawhatchee Electric Co-Op | FL |
| City of Leesburg | FL |
| City of Tallahassee Utilities | FL |
| City of Vero Beach | FL |
| Clay Electric Co-op | FL |
| Duke Energy | FL |
| Florida Keys Electric Cooperative | FL |
| Florida Municipal Power Agency | FL |
| Florida Power & Light | FL |
| Florida Public Utility Company Palm Beach | FL |
| Gainesville Regional Utilities | FL |
| Glades Electric Cooperative | FL |
| Gulf Power | FL |
| JEA | FL |
| Kissimmee Utility Authority | FL |
| Lake Worth Utilities | FL |
| Lakeland Electric | FL |
| LCEC | FL |
| Ocala Electric | FL |
| Okefenokee Rural Electric (OREMC) | FL |
| Orlando Utilities Commission | FL |
| Paige Electric | FL |
| Peace River Electric Cooperative | FL |
| Progress Energy Florida | FL |
| SECO Energy | FL |
| St. Petersburg Utility Department | FL |
| Talquin Electric Cooperative | FL |
| Tampa Electric | FL |
| TECO | FL |
| West Florida Electric Cooperative | FL |
| Withlacoochee River Electric Cooperative | FL |
| Other | FL |
| Amicalola Electric Membership Corporation | GA |
| Blue Ridge Mountain EMC | GA |
| Charles E Hill Electric Co | GA |
| City of LaGrange Utilities | GA |
| City of Sylvester Utilities | GA |
| Cobb EMC | GA |
| Colquitt Electric Corporation | GA |
| Coweta Fayette EMC | GA |
| Diverse Power | GA |
| Fitzgerald Utilities | GA |
| Flint Energies | GA |
| Georgia EMC | GA |
| Georgia Power | GA |
| Habersham EMC | GA |
| Hart EMC | GA |
| Jackson EMC | GA |
| Rowell Electric Co | GA |
| Sawnee EMC | GA |
| Snapping Shoals EMC | GA |
| Southern Rivers Energy | GA |
| Tennessee Valley Authority | GA |
| Tri-State Electric | GA |
| Walton EMC | GA |
| Washington EMC | GA |
| Other | GA |
| Hawaiian Electric Industries | HI |
| Hawaiian Electric Company (HECO) | HI |
| Kauai Island Utility Cooperative (KIUC) | HI |
| Maui Electric Company | HI |
| Other | HI |
| Alliant Energy | IA |
| Chariton Valley Electric Cooperative | IA |
| City of Denver Electric (Iowa) | IA |
| Interstate Power and Light Company | IA |
| MidAmerican Energy | IA |
| Midland Power Co-Op | IA |
| Muscatine Power and Water | IA |
| Southwest Iowa Rural Electric Cooperative | IA |
| Tip Rural Electric Co-Op | IA |
| Other | IA |
| City of Rupert Electric | ID |
| City of Weiser | ID |
| Clearwater Power | ID |
| IDACORP | ID |
| Idaho Power | ID |
| Kootenai Electric Cooperative | ID |
| Northern Lights Electric Cooperative | ID |
| PacifiCorp (Rocky Mountain Power) | ID |
| Riverside Electric Co | ID |
| Other | ID |
| Ambit Energy | IL |
| Ameren | IL |
| Batavia Municipal Electric | IL |
| City of Princeton Electric | IL |
| City of St. Charles | IL |
| ComEd Electric Company | IL |
| Corn Belt Energy Corporation | IL |
| Gexpro Electric | IL |
| IGS Energy | IL |
| Jo-Carroll Energy | IL |
| Norris Electric Cooperative | IL |
| Red Bud Utilities Plant | IL |
| Springfield City Water Light & Power | IL |
| Tara Energy | IL |
| Village of Hanover Park Municipal Light and Power | IL |
| Other | IL |
| American Electric Power | IN |
| Duke Energy Indiana | IN |
| Garrett Electric Utilities | IN |
| Hendricks Power Cooperative | IN |
| Henry County REMC | IN |
| IGS Energy | IN |
| Indiana Michigan Power | IN |
| Indianapolis Power & Light | IN |
| Jackson County REMC | IN |
| Lebanon Utilities | IN |
| Meade Electric Company | IN |
| Mishawaka Utilities | IN |
| Northern Indiana Public Service Company | IN |
| South Central Indiana REMC | IN |
| Southeastern Indiana REMC | IN |
| Whitewater Valley REMC | IN |
| Other | IN |
| Bluestem Electric | KS |
| Caney Valley Elec Co-Op Association | KS |
| Kansas City Board of Public Utilities | KS |
| Kansas City Power & Light | KS |
| Midwest Energy | KS |
| Rolling Hills Electric Cooperative | KS |
| Westar Energy | KS |
| Other | KS |
| American Electric Power | KY |
| Berea Municipal Utilities | KY |
| Big Rivers Electric Corporation | KY |
| Blue Grass Energy | KY |
| Bowling Green Municipal Utilities | KY |
| Clark Energy Cooperative | KY |
| Duke Energy Kentucky | KY |
| Fleming-Mason Energy Cooperative | KY |
| Frankfort Plant Board | KY |
| Grayson Rural Electric Electric Cooperative | KY |
| Henderson Municipal Power and Light | KY |
| IGS Energy | KY |
| Kenergy Corp | KY |
| Kentucky Utilities | KY |
| Louisville Gas & Electric | KY |
| Nolin Rural Electric Cooperative | KY |
| Owen Electric | KY |
| Owensboro Municipal Utilities | KY |
| Pennyrile Rural Electric Co-Op | KY |
| Salt River Electric | KY |
| Shelby Energy Cooperative | KY |
| Tennessee Valley Authority | KY |
| West Kentucky Rural Electric Cooperative Corporation | KY |
| Other | KY |
| Beauregard Electric CO-OP | LA |
| CLECO | LA |
| Concordia Electric Co-Op | LA |
| DEMCO | LA |
| East-Central Iowa Rural Electric Cooperative | LA |
| Entergy | LA |
| Etheredge Electric Co | LA |
| Heartland Rural Electric Cooperative | LA |
| Jefferson Davis Electric Co-Op | LA |
| Lafayette Utilities System | LA |
| Pointe Coupee Electric Membership | LA |
| Puckett Electric | LA |
| SLECMO | LA |
| SWEPCO | LA |
| Town of Vinton Electric | LA |
| Washington – St. Tammany Electric Cooperative | LA |
| Other | LA |
| Ambit Energy | MA |
| Belmont Electric Light Department | MA |
| Berkshire Company | MA |
| Braintree Electric Light Department | MA |
| Chicopee Electric Light Department | MA |
| City of Fitchburg | MA |
| Hingham Light Department | MA |
| Holden Municipal Light Department | MA |
| Holyoke Gas and Electric | MA |
| Hudson Light and Power | MA |
| Ipswich Utility Department | MA |
| Mansfield Municipal Electric | MA |
| Marblehead Electric Light Department | MA |
| Massachusetts Electric | MA |
| Massachusetts Municipal Wholesale Electric Company (MMWEC) | MA |
| Middleborough Gas and Electric | MA |
| Nantucket Electric | MA |
| National Grid | MA |
| North Attleborough Electric Department | MA |
| Northeast Utilities | MA |
| Norwood Municipal Light and Power | MA |
| NSTAR | MA |
| Paxton Municipal Light Department | MA |
| Peabody Municipal Light Plant | MA |
| Reading Municipal Light Department | MA |
| Rowley Electric Light Department | MA |
| SELCO | MA |
| Sterling Municipal Light Department | MA |
| Taunton Municipal Lighting Plant (TMLP) | MA |
| Templeton Municipal Light Co | MA |
| Viridian | MA |
| Wakefield Municipal Gas and Light Department | MA |
| Western Massachusetts Electric | MA |
| Westfield Gas and Electric Department | MA |
| Other | MA |
| Allegheny Power | MD |
| Ambit Energy | MD |
| Baltimore Gas & Electric | MD |
| Choptank Electric Cooperative | MD |
| Constellation Energy | MD |
| Delmarva Power | MD |
| IGS Energy | MD |
| Kleppinger Electric Co | MD |
| PEPCO | MD |
| Potomoc Edison (FirstEnergy) | MD |
| Southern Maryland Electric Cooperative | MD |
| Other | MD |
| Bangor Hydro Electric | ME |
| Central Maine Power | ME |
| Eastern Maine Electric Cooperative | ME |
| Kennebunk Light and Power | ME |
| Maine Public Utilities Commission | ME |
| Other | ME |
| American Electric Power | MI |
| Consumers Energy | MI |
| DTE Energy (Detroit Edison) | MI |
| Excel Energy | MI |
| Holland Board of Public Works | MI |
| IGS Energy | MI |
| Indiana Michigan Power | MI |
| Lansing Board of Water & Light | MI |
| Midwest Energy Cooperative | MI |
| TC Electric | MI |
| Upper Peninsula Power Company | MI |
| Wakefield Municipal Gas and Light | MI |
| We Energies | MI |
| Wyandotte Municipal Services | MI |
| Other | MI |
| Alliant Energy | MN |
| Basin Electric Power Cooperative | MN |
| Connexus Energy | MN |
| Dakota Electric Association | MN |
| East Central Energy | MN |
| East Grand Forks Electric and Water | MN |
| East River Electric Power Co-op | MN |
| Goodhue County Co-Op Electric | MN |
| Great River Energy | MN |
| Hutchinson Utilities Commission | MN |
| ITC Midwest | MN |
| L&O Power Co-op | MN |
| Lake Country Power | MN |
| Marshall Municipal Utilities | MN |
| Mille Lacs Energy Co-Op | MN |
| Minnesota Power | MN |
| Minnesota Valley Electric Cooperative | MN |
| Minnkota Power Cooperative | MN |
| Missouri River Energy Services | MN |
| Moorhead City Public Services Department | MN |
| Otter Tail Power Company | MN |
| People | MN |
| Rochester Public Utilities | MN |
| Shakopee Public Utilities | MN |
| Tri-County Electric | MN |
| Xcel Energy | MN |
| Other | MN |
| Ameren | MO |
| Barton County Electric Cooperative | MO |
| Black River Electric Cooperative | MO |
| Boone Electric Cooperative | MO |
| Callaway Electric Cooperative | MO |
| Citizens Electric Corporation | MO |
| City of Waynesville Electric | MO |
| City Utilities of Springfield | MO |
| Coast Electric | MO |
| Cuivre River Electric | MO |
| Empire District Electric Company | MO |
| Gascosage Electric Co-Op | MO |
| Hannibal Board of Public Works | MO |
| Harrisonville Electric | MO |
| Howard Electric Cooperative | MO |
| Howell-Oregon Electric Co-Op | MO |
| Independence Power and Light | MO |
| Intercounty Electric Cooperative | MO |
| Kansas City Power & Light | MO |
| Laclede Electric Cooperative | MO |
| New-Mac Electric | MO |
| Nixa Utilities | MO |
| Ozark Border Electric Cooperative | MO |
| Platte-Clay Electric Cooperative | MO |
| SAC Osage Electric Co-Op | MO |
| Webster Electric Cooperative | MO |
| West Central Electric Cooperative | MO |
| White Valley River Valley Electric Cooperative | MO |
| Other | MO |
| Entergy | MS |
| Magnolia Electric | MS |
| Mississippi Power Company | MS |
| Southern Pine Electric Power Association | MS |
| Southwest Mississippi Electric Power Association | MS |
| Tennessee Valley Authority | MS |
| Tombigbee Electric Power Association | MS |
| Other | MS |
| Central Montana Electric Power Cooperative | MT |
| Flathead Electric Co-Op | MT |
| MDU | MT |
| Montana Electric Cooperatives’ Association | MT |
| Northwestern Energy | MT |
| Park Electric Co-Op | MT |
| Ravalli Electric Co-Op | MT |
| Vigilante Electric Co-Op | MT |
| Other | MT |
| Albemarle Electric Membership Corporation | NC |
| Ashley Smith Electric Co | NC |
| Blue Ridge Electrical Membership Corp. | NC |
| Brunswick EMC | NC |
| Cape Hatteras Electric Corporation | NC |
| Carteret-Craven Electric Cooperative | NC |
| Central Electric Membership Corporation | NC |
| City of Albemarle | NC |
| City of Kinston Electric | NC |
| City of Lexington Utilities | NC |
| City of New Bern Electric | NC |
| City of Shelby Utilities | NC |
| Dobbins Electric Co | NC |
| Dominion North Carolina Power | NC |
| Duke Energy NC | NC |
| Edgecombe-Martin County EMC | NC |
| ElectriCities | NC |
| EnergyUnited Electric | NC |
| Farmville Utilities Department | NC |
| Four County Electric Membership | NC |
| French Broad Electric Membership Corporation | NC |
| Greenville Utilities Commission | NC |
| Halifax Electric Membership | NC |
| Haywood EMC | NC |
| High Point Electric Department | NC |
| Jones-Onslow EMC | NC |
| Lumbee River EMC | NC |
| Lumberton Power | NC |
| New River Light and Power | NC |
| North Carolina Electric Membership Corp. | NC |
| Piedmont Electric | NC |
| Progress Energy Carolinas | NC |
| PWC Fayetteville | NC |
| Randolph Electric Membership Corp | NC |
| Roanoke Electric Co-Op | NC |
| Rutherford EMC | NC |
| Storm Electric | NC |
| Surry-Yadkin EMC | NC |
| Tideland EMC | NC |
| Town of Forest City Utilities | NC |
| Union Power Cooperative | NC |
| Wake Electric | NC |
| Washington Electric Utilities | NC |
| Wesco Electric | NC |
| Williams Electric Co | NC |
| WIlson Energy | NC |
| Wilson Utilities Department | NC |
| Other | NC |
| Basin Electric Power Cooperative | ND |
| Central Power Electric Cooperative | ND |
| MDU | ND |
| Minnkota Power Cooperative | ND |
| Otter Tail Power Company | ND |
| Upper Missouri G&T Cooperative | ND |
| Verendrye Electric Cooperative | ND |
| Xcel Energy | ND |
| Other | ND |
| ABC Electric Co | NE |
| Fairbury Light and Water | NE |
| Nebraska Public Power District | NE |
| Omaha Public Power District | NE |
| Other | NE |
| Granite State Electric | NH |
| Liberty Utilities | NH |
| National Grid | NH |
| Northeast Utilities | NH |
| Public Service of NH | NH |
| Unitil Corporation | NH |
| Other | NH |
| Ambit Energy | NJ |
| Asbury Park Electric Supply Co | NJ |
| Atlantic City Electric | NJ |
| FirstEnergy | NJ |
| Gateway Energy Services | NJ |
| Jersey Central Power and Light Company | NJ |
| Milltown Boro Electric | NJ |
| Northeast Utilities | NJ |
| Orange & Rockland | NJ |
| Powers Electric Company | NJ |
| Public Service Electric and Gas Company (PSE&G) | NJ |
| Sussex Rural Electric Cooperative | NJ |
| Vineland Municipal Electric Utility | NJ |
| Other | NJ |
| Central New Mexico Electric Cooperative | NM |
| Columbus Electric Co-Op | NM |
| El Paso Electric | NM |
| Farmington Electric Utility System | NM |
| Jemez Mountains Electric Cooperative | NM |
| Kit Carson Electric | NM |
| Lea County Electric Cooperative | NM |
| Navajo Tribal Utility Authority | NM |
| Northern Rio Arriba Electric Cooperative | NM |
| PNM | NM |
| Public Service Company of New Mexico | NM |
| Other | NM |
| Lincoln County Power District Number 1 | NV |
| Nevada Power | NV |
| NV Energy | NV |
| Overton Power District No 5 | NV |
| Sierra Pacific Power | NV |
| Surprise Valley Electric | NV |
| Other | NV |
| Ambit Energy | NY |
| Azure Mountain Power Co | NY |
| Central Hudson Gas & Electric | NY |
| CH Energy Group | NY |
| Citizens Choice Energy Jamestown BPU | NY |
| Consolidated Edison Company of New York (Con Edison) | NY |
| Freeport Electric | NY |
| Green Island Power Authority | NY |
| IGS Energy | NY |
| Jamestown Board of Public Utilities | NY |
| Long Island Power Authority (LIPA) | NY |
| Massena Electric Department | NY |
| National Grid | NY |
| New York Power Authority (NYPA) | NY |
| New York State Electric & Gas (NYSEG) | NY |
| Ocean Electric | NY |
| Orange & Rockland | NY |
| Plattsburgh Municipal Lighting Department | NY |
| PSEG Long Island formerly LIPA | NY |
| Public Service Electric and Gas Company (PSE&G) | NY |
| Rochester Gas & Electric | NY |
| Salamanca Public Utilities | NY |
| Sherburne Municipal Electric | NY |
| Tupper Lake Municipal Electric Department | NY |
| Village of Akron Electric | NY |
| Village of Lake Placid | NY |
| Other | NY |
| American Electric Power | OH |
| Butler Rural Electric Cooperative | OH |
| Cincinnati Bell Energy | OH |
| Cleveland Electric Illuminating Company | OH |
| Consolidated Electric Cooperative | OH |
| Dayton Power & Light | OH |
| Duke Energy Ohio | OH |
| Firelands Electric Cooperative | OH |
| FirstEnergy | OH |
| Guernsey-Muskingum Electric Cooperative | OH |
| Hamilton Utility Services Department | OH |
| Hancock Wood Electric Cooperative | OH |
| Holmes-Wayne Electric Cooperative | OH |
| IGS Energy | OH |
| Jess Howard Electric | OH |
| Logan County Electric Cooperative | OH |
| Lorain Medina Rural Electric Cooperative | OH |
| Ohio Edison | OH |
| Paulding Putnam Electric Cooperative | OH |
| South Central Power Company | OH |
| The Energy Coop | OH |
| Toledo Edison | OH |
| Other | OH |
| American Electric Power | OK |
| Caddo Electric Cooperative | OK |
| City Of Waynoka Utility | OK |
| Compton Electric Company | OK |
| Cotton Electric Co-Op | OK |
| Kiamichi Electric Co-Op | OK |
| Oklahoma Gas & Electric | OK |
| Public Service Company of Oklahoma | OK |
| Other | OK |
| Ameren | OR |
| Ashland Electric | OR |
| Canby Electric | OR |
| City of Forest Grove Light and Power | OR |
| Columbia River Public Utility District | OR |
| Coos-Curry Electric Co-Op | OR |
| Emerald PUD | OR |
| Eugene Water & Electric Board | OR |
| Idaho Power | OR |
| PacifiCorp (Pacific Power) | OR |
| Portland General Electric | OR |
| Salem Electric | OR |
| Tillamook PUD | OR |
| Umatilla Electric Cooperative | OR |
| Wasco Electric | OR |
| West Oregon Electric Cooperative | OR |
| Other | OR |
| Adams Electric Cooperative | PA |
| Allegheny Power | PA |
| Ambit Energy | PA |
| Borough of Ellwood City | PA |
| Borough of Ellwood City Electric | PA |
| Citizens Electric of Lewisburg | PA |
| Claverack REC | PA |
| Duquesne Light | PA |
| FirstEnergy | PA |
| IGS Energy | PA |
| Lansdale Borough Electric | PA |
| Met-Ed | PA |
| PECO | PA |
| Penelec | PA |
| Penn Power | PA |
| Pike County Light & Power Company | PA |
| Powers Electric Company | PA |
| PPL | PA |
| Rural Valley Electric Co. | PA |
| Superior Plus Utility | PA |
| UGI Utilities Inc. | PA |
| Warren Electric Co-Op | PA |
| Wellsboro Electric Company | PA |
| West Penn Power | PA |
| Other | PA |
| Narragansett Electric | RI |
| National Grid | RI |
| Other | RI |
| Berkeley Electric Cooperative | SC |
| Blue Ridge Electric Cooperative | SC |
| Broad River Electric Cooperative | SC |
| Central Electric Power Cooperative Inc. | SC |
| City of Rock Hill | SC |
| Duke Energy SC | SC |
| Horry Electric Co-Op | SC |
| Laurens Electric Cooperative | SC |
| Little River Electric Co-Op | SC |
| Newberry Electric Cooperative | SC |
| Palmetto Electric Cooperative | SC |
| Pee Dee Electric Cooperative | SC |
| Progress Energy Carolinas | SC |
| Santee Cooper | SC |
| South Carolina Electric & Gas Company | SC |
| Other | SC |
| Black Hills Power | SD |
| East River Electric Cooperative | SD |
| Montana-Dakota Utilities | SD |
| Northwestern Energy | SD |
| Otter Tail Power Company | SD |
| Rushmore Electric Cooperative | SD |
| West River Electric Association | SD |
| Xcel Energy | SD |
| Other | SD |
| Alcoa Electric Department | TN |
| Athens Utilities Board | TN |
| Bill Dower’s Sons Electric Co | TN |
| Chickasaw Electric Co-Op | TN |
| Citizens Utilities Board | TN |
| City of Lebanon Utilities | TN |
| Clarksville Department of Electricity | TN |
| Clinton Utilities Board | TN |
| Columbia Power and Water Systems | TN |
| Cumberland Electric Membership Corporation | TN |
| Dickson Electric System | TN |
| Duck River EMC | TN |
| Electric Power Board | TN |
| Elizabethton Electric Department | TN |
| Forked Deer Electric | TN |
| Fort Loudoun Electric Cooperative | TN |
| Gibson Electric Membership Corporation | TN |
| Jackson | TN |
| Kingsport Power (Appalachian Power) | TN |
| Knoxville Utilities Board | TN |
| Landon Electric Company | TN |
| Lawrenceburg Utility Department | TN |
| Lenoir City Utilities Board | TN |
| McMinnville Electric System | TN |
| Memphis Light Gas and Water | TN |
| Middle Tennessee Electric Membership Corporation (MTEMC) | TN |
| Mountain Electric Co-Op | TN |
| Nashville Electric Service | TN |
| Rains Electric Company | TN |
| Sequachee Valley Electric Cooperative | TN |
| Sevier County Electric System | TN |
| Sewell Electric Company | TN |
| Tennessee Jackson Energy Authority | TN |
| Tennessee Valley Authority | TN |
| Upper Cumberland Electric Membership Corporation (UCEMC) | TN |
| Volunteer Electric Cooperative | TN |
| Weakley County Municipal Electric System | TN |
| Other | TN |
| 4 Change | TX |
| Acacia | TX |
| Ambit | TX |
| American Electric Power | TX |
| American Light and Power | TX |
| Amigo Energy | TX |
| AP G&E | TX |
| Apna | TX |
| Austin Energy | TX |
| Bandera Electric Cooperative | TX |
| Bartlett Electric Cooperative | TX |
| Blackstone Electric Co | TX |
| Bluebonnet Electric Cooperative | TX |
| Bounce Energy | TX |
| Bowie Cass Electric Co-op | TX |
| Breeze | TX |
| Brilliant | TX |
| Brownsville Public Utilities Board | TX |
| Bryan Texas Utilities | TX |
| CenterPoint Energy | TX |
| Central Texas Electric Co-Op | TX |
| Champion Energy Services | TX |
| Cherokee County Electric Cooperative (CCECA) | TX |
| Cirro | TX |
| City of Austin Utilities | TX |
| City of Coleman Utilities | TX |
| City of Gastonia Electric | TX |
| City of Sanger Utilities | TX |
| Clear View | TX |
| College Station Utilities | TX |
| Comanche Electric Cooperative | TX |
| Coserv Electric | TX |
| CPS Energy | TX |
| Deep East Texas Electric Coop | TX |
| Denton Municipal Eletric | TX |
| Direct Energy | TX |
| dPi Energy | TX |
| Eagle | TX |
| Eagle Energy | TX |
| El Paso Electric | TX |
| Electric Database Publishing | TX |
| Energy Plus Company | TX |
| Entergy | TX |
| Entrust Energy | TX |
| Everything | TX |
| Fannin County Electric Co | TX |
| Farmers Electrical Cooperative | TX |
| First Choice | TX |
| First Texas Energy Corporation | TX |
| Floresville Electric Light and Power System | TX |
| Frontier | TX |
| Garland Power and Light | TX |
| Georgetown Utility Services (GUS) | TX |
| GEUS Electric | TX |
| Gexa Energy | TX |
| Green Mountain Energy | TX |
| Guadalupe Valley Electric Cooperative | TX |
| GVEC | TX |
| Hamilton County Electric Cooperative | TX |
| Hilco Electric Co-Op | TX |
| Hino | TX |
| Houston County Electric Cooperative | TX |
| IGS energy | TX |
| infintite | TX |
| International Electric Power (IEP) | TX |
| Jackson EMC | TX |
| Jasper-Newton Electric Cooperative | TX |
| Just Energy | TX |
| Karnes Electric Co-Op | TX |
| Kerrville Public Utility Board (KPUB) | TX |
| Kona | TX |
| Lea County Electric Cooperative | TX |
| Limunant | TX |
| Lower Colorado River Authority | TX |
| Lubbock Power and Light | TX |
| Luminant | TX |
| Lyntegar Electric | TX |
| Magic Valley | TX |
| McCaffety Electric | TX |
| Medina Electric Cooperative | TX |
| Mid-South Synergy | TX |
| Mission Power | TX |
| Navarro County Electric Cooperative | TX |
| Navasota Valley Electric Cooperative | TX |
| New Braunfels Utilities | TX |
| New Leaf | TX |
| Nueces Electric Cooperative | TX |
| Oncor Electric (Formerly TXU) | TX |
| Our energy | TX |
| Panola-Harrison Electric Cooperative | TX |
| Pedernales Electric Cooperative | TX |
| Penny wise | TX |
| Reach | TX |
| Reliant Energy | TX |
| Rio Grande Electric Cooperative | TX |
| Rusk County Electric Cooperative | TX |
| Sam Houston Electric | TX |
| San Bernard Electric Co-Op | TX |
| San Patricio Electric Co-Op | TX |
| Sharyland Utilities | TX |
| Source | TX |
| South Plains Electric Cooperative | TX |
| Southwest Power and Light | TX |
| Southwestern Electric Power Company (SWEPCO) | TX |
| Spark Energy | TX |
| Star Tex Power | TX |
| Star Trex | TX |
| Stream Energy | TX |
| Summer | TX |
| Tara Energy | TX |
| Taylor Electric Co-Op | TX |
| Texas Electric Service Company | TX |
| Texpo | TX |
| Tri Eagle Energy | TX |
| Trinity Valley Electric Cooperative | TX |
| Tru Smart | TX |
| True Electric | TX |
| TXU | TX |
| United Cooperative Services | TX |
| Upshur Rural Electric Co-Op | TX |
| V247 Power Corportion | TX |
| Veteran | TX |
| Victoria Electric Cooperative | TX |
| Wise Electric Co-Op | TX |
| Wood County Electric Cooperative | TX |
| WTU Retail Energy | TX |
| XOOM Energy | TX |
| YEP | TX |
| Other | TX |
| Brigham City Public Power | UT |
| City of Santa Clara Power | UT |
| Dixie Escalante Electric | UT |
| Garkane Energy Cooperative | UT |
| Heber Light and Power | UT |
| Hurricane City Utilities | UT |
| Hyrum City Power & Light | UT |
| Intermountain Power Agency | UT |
| Kaysville City | UT |
| Lehi City Power | UT |
| Moon Lake Electric Association | UT |
| Murray City Power | UT |
| PacifiCorp (Rocky Mountain Power) | UT |
| Provo City Power | UT |
| Strawberry Electric Service District | UT |
| Other | UT |
| A and N Electric Cooperative | VA |
| Allegheny Power | VA |
| Appalachian Power | VA |
| Bristol Virginia Utilities | VA |
| Central Virginia Electric Cooperative | VA |
| Community Electric Cooperative | VA |
| Craig-Botetourt Electric Cooperative | VA |
| Danville Utilities | VA |
| Delmarva Power | VA |
| Dominion Virginia Power | VA |
| Franklin Electric Department | VA |
| IGS Energy | VA |
| Mecklenburg Electric Cooperative | VA |
| Northern Neck Electric Cooperative | VA |
| NOVEC | VA |
| Piedmont EMC | VA |
| Prince George Electric Cooperative | VA |
| Radford Electric Department | VA |
| Rappahannock Electric Cooperative | VA |
| Shenandoah Valley Electric Cooperative | VA |
| Southside Electric Cooperative | VA |
| Town of Richlands Electric Department | VA |
| Town of Vienna | VA |
| Wakefield Municipal Gas and Lighting | VA |
| Other | VA |
| Central Vermont Public Service | VT |
| Green Mountain Power | VT |
| Hardwick Electric Department | VT |
| Vermont Electric Cooperative | VT |
| Washington Electric Cooperative | VT |
| Other | VT |
| Avista Utilities | WA |
| Benton PUD | WA |
| Chelan County Public Utility District | WA |
| City of Blaine | WA |
| Columbia REA | WA |
| Cowlitz PUD | WA |
| Douglas County Public Utility District | WA |
| Grant County Public Utility District | WA |
| Klickitat Public Utility District | WA |
| Lewis County Public Works | WA |
| Mason County Public Utility District 3 | WA |
| Modern Electric Water Company | WA |
| Orcas Power and Light Cooperative (OPALCO) | WA |
| Pacific County Public Utility District No. 2 | WA |
| PacifiCorp (Pacific Power) | WA |
| Peninsula Light Company | WA |
| Puget Sound Energy | WA |
| Seattle City Light | WA |
| Snohomish County Public Utility District (PUD) | WA |
| Tacoma Power | WA |
| Tanner Electric | WA |
| Other | WA |
| Alliant Energy | WI |
| Dairyland Power Co-op | WI |
| Eau Claire Energy Cooperative | WI |
| Kaukauna Utilities | WI |
| Madison Gas and Electric | WI |
| Pierce Pepin Cooperative Services | WI |
| Polk-Burnett Electric Cooperative | WI |
| Richland Electric Cooperative | WI |
| River Falls Municipal Utility | WI |
| Superior Water Light and Power | WI |
| Village of Hustisford Electric | WI |
| We Energies | WI |
| Wisconsin Power and Light Company | WI |
| Wisconsin Public Service Corporation | WI |
| Xcel Energy | WI |
| Other | WI |
| Allegheny Power | WV |
| Appalachian Power | WV |
| Wheeling Electric Power (AEP Ohio) | WV |
| Other | WV |
| Cheyenne Light Fuel & Power | WY |
| High Plains Power | WY |
| High West Energy | WY |
| Lower Valley Energy | WY |
| PacifiCorp (Rocky Mountain Power) | WY |
| Wheatland Rural Electric Association | WY |
| Other | WY |
