| Southern California Edison | CA, AZ, NV | Major | 4,173 | n/a |
| Entergy | LA, AR, MS, TX | Major | 1,262 | 0.04% |
| LG&E and KU | KY, VA | Normal | 539 | 0.05% |
| Jackson Energy Cooperative | KY | Minor | 519 | n/a |
| PG&E | CA | Normal | 418 | <0.01% |
| Ameren | IL, MO | Normal | 402 | 0.02% |
| Xcel Energy | MN, CO, WI, TX, NM, ND, SD, MI | Minor | 389 | n/a |
| Oncor | TX | Normal | 224 | <0.01% |
| Dominion Energy | VA, NC | Normal | 181 | <0.01% |
| SWEPCO | AR, TX, LA | Normal | 143 | 0.03% |
| National Grid (Massachusetts Electric) | MA | Minor | 129 | n/a |
| AEP Ohio | OH | Normal | 104 | <0.01% |
| La Plata Electric Association | CO, NM | Minor | 102 | n/a |
| Licking Valley RECC | KY | Normal | 99 | n/a |
| PacifiCorp | UT, OR, WY, WA, ID, CA | Normal | 90 | n/a |
| ComEd | IL | Normal | 82 | <0.01% |
| PSE&G | NJ | Normal | 82 | <0.01% |
| AEP Texas | TX | Normal | 80 | <0.01% |
| BGE | MD | Normal | 75 | <0.01% |
| Alabama Power | AL | Normal | 72 | <0.01% |
| Kentucky Power | KY | Normal | 61 | 0.04% |
| FirstEnergy Pennsylvania | PA, NY | Normal | 50 | <0.01% |
| Georgia Power | GA | Normal | 47 | <0.01% |
| Appalachian Power | VA, WV, TN, NC | Normal | 39 | <0.01% |
| Eversource | CT, MA, NH | Normal | 38 | <0.01% |
| Portland General Electric | OR | Normal | 33 | n/a |
| Cleco | LA | Normal | 32 | 0.01% |
| Sequachee Valley Electric Cooperative | TN | Normal | 29 | n/a |
| Rhode Island Energy | RI | Normal | 27 | <0.01% |
| PECO | PA | Normal | 26 | <0.01% |
| Middle Tennessee Electric | TN | Normal | 23 | n/a |
| Jersey Central Power & Light | NJ | Normal | 21 | <0.01% |
| Arizona Public Service | AZ | Normal | 16 | n/a |
| United Power | CO | Normal | 16 | n/a |
| EnergyUnited EMC | NC | Normal | 15 | n/a |
| Potomac Edison | MD, WV | Normal | 15 | n/a |
| Delmarva Power | DE, MD | Normal | 14 | <0.01% |
| Pepco | DC, MD | Normal | 13 | <0.01% |
| Douglas Electric Cooperative | OR | Normal | 10 | n/a |
| FirstEnergy Ohio | OH | Normal | 10 | <0.01% |
| Atlantic City Electric | NJ | Normal | 8 | <0.01% |
| Victory Electric Cooperative Association | KS | Normal | 8 | n/a |
| City of Norwood | MA | Normal | 7 | n/a |
| Hawaiian Electric | HI | Normal | 6 | n/a |
| Seattle City Light | WA | Normal | 6 | n/a |
| Evergy | MO, KS | Normal | 4 | <0.01% |
| Henderson City Utility Commission | KY | Normal | 4 | n/a |
| PNM | NM | Normal | 4 | <0.01% |
| PSEG Long Island | NY | Normal | 4 | <0.01% |
| Unitil Energy Systems | NH | Normal | 4 | n/a |
| Edgecombe-Martin County EMC | NC | Normal | 2 | n/a |
| Great Lakes Energy Cooperative | MI | Normal | 2 | n/a |
| Tanner Electric Cooperative | WA | Normal | 2 | n/a |
| Beltrami Electric Cooperative | MN | Normal | 1 | n/a |
| City of Newport | TN | Normal | 1 | n/a |
| Con Edison | NY | Normal | 1 | <0.01% |
| Continental Divide El Cooperative | NM | Normal | 1 | n/a |
| Cooperative Light & Power | MN | Normal | 1 | n/a |
| Lake Country Power | MN | Normal | 1 | n/a |
| MidAmerican Energy | IA, IL, SD | Normal | 1 | n/a |
| National Grid (Niagara Mohawk) | NY | Normal | 1 | n/a |
| Nobles Cooperative Electric | MN, IA | Normal | 1 | n/a |
| Orange & Rockland | NY, NJ | Normal | 1 | <0.01% |
| Shelby Electric Cooperative | IL | Normal | 1 | n/a |
| Trico Electric Cooperative | AZ | Normal | 1 | n/a |
| Yampa Valley Electric Association | CO, WY | Normal | 1 | n/a |
| Adams Electric Cooperative | PA | Normal | 0 | n/a |
| Agralite Electric Cooperative | MN | Normal | 0 | n/a |
| Albemarle EMC | NC | Normal | 0 | n/a |
| Allamakee-Clayton El Cooperative | IA | Normal | 0 | n/a |
| Barron Electric Cooperative | WI | Normal | 0 | n/a |
| BENCO Electric Cooperative | MN | Normal | 0 | n/a |
| Benton County | TN | Normal | 0 | n/a |
| Berkeley Electric Cooperative | SC | Normal | 0 | n/a |
| Blue Ridge EMC | NC | Normal | 0 | n/a |
| Brunswick EMC | NC | Normal | 0 | n/a |
| Butler County Rural Electric Cooperative | IA | Normal | 0 | n/a |
| Butler Rural El Cooperative Association | KS | Normal | 0 | n/a |
| Cape Hatteras EMC | NC | Normal | 0 | n/a |
| Carteret-Craven El Membership | NC | Normal | 0 | n/a |
| Central EMC. | NC | Normal | 0 | n/a |
| Central Hudson | NY | Normal | 0 | 0% |
| Central Wisconsin Electric Cooperative | WI | Normal | 0 | n/a |
| Choctawhatche Electric Cooperative | FL | Normal | 0 | n/a |
| Citizens Electric | PA | Normal | 0 | n/a |
| City of Alcoa Utilities | TN | Normal | 0 | n/a |
| City of Gaffney | SC | Normal | 0 | n/a |
| City of Lawrenceburg | TN | Normal | 0 | n/a |
| City of Morristown | TN | Normal | 0 | n/a |
| City of Ocala | FL | Normal | 0 | n/a |
| City of Pulaski | TN | Normal | 0 | n/a |
| City of Sweetwater | TN | Normal | 0 | n/a |
| Clark County Rural EMC | IN | Normal | 0 | n/a |
| Clearwater Power | ID, WA, OR | Normal | 0 | n/a |
| Coast Electric Power Association | MS | Normal | 0 | n/a |
| Columbia Rural Electric Association | WA, OR | Normal | 0 | n/a |
| Consumers Power | OR | Normal | 0 | n/a |
| CORE Electric Cooperative | CO | Normal | 0 | n/a |
| Cumberland EMC | TN | Normal | 0 | n/a |
| Dakota Electric Association | MN | Normal | 0 | n/a |
| Delaware Electric Cooperative | DE | Normal | 0 | n/a |
| Dixie EMC | LA | Normal | 0 | n/a |
| Dominion Energy South Carolina | SC | Normal | 0 | 0% |
| Dunn County Electric Cooperative | WI | Normal | 0 | n/a |
| Duquesne Light | PA | Normal | 0 | 0% |
| East Central Energy | MN, WI | Normal | 0 | n/a |
| Four County EMC | NC | Normal | 0 | n/a |
| Freeborn Mower Electric Cooperative | MN, IA | Normal | 0 | n/a |
| French Broad EMC | NC, TN | Normal | 0 | n/a |
| Goodhue County Cooperative Electric Association | MN | Normal | 0 | n/a |
| Grayson-Collin Electric Cooperative | TX | Normal | 0 | n/a |
| Green Mountain Power | VT | Normal | 0 | 0% |
| Habersham EMC | GA | Normal | 0 | n/a |
| Halifax EMC | NC | Normal | 0 | n/a |
| Haywood EMC | NC, GA, SC | Normal | 0 | n/a |
| Heartland Power Cooperative | IA, MN | Normal | 0 | n/a |
| High West Energy | WY, NE, CO | Normal | 0 | n/a |
| Holston Electric Cooperative | TN | Normal | 0 | n/a |
| Horry Electric Cooperative | SC | Normal | 0 | n/a |
| Indiana Michigan Power | IN, MI | Normal | 0 | 0% |
| Jones-Onslow EMC | NC | Normal | 0 | n/a |
| Knoxville Utilities Board | TN | Normal | 0 | n/a |
| Lake Region Electric Cooperative | MN | Normal | 0 | n/a |
| Licking Valley Rural E C C | KY | Normal | 0 | n/a |
| Lumbee River EMC | NC | Normal | 0 | n/a |
| Matanuska Electric Association | AK | Normal | 0 | 0% |
| Meeker Cooperative Light & Power Association | MN | Normal | 0 | n/a |
| Midwest Energy Cooperative | MI, OH, IN | Normal | 0 | n/a |
| MiEnergy Cooperative | MN, IA | Normal | 0 | n/a |
| Mille Lacs Energy Cooperative | MN | Normal | 0 | n/a |
| Minnesota Valley Electric Cooperative | MN | Normal | 0 | n/a |
| Missoula Electric Cooperative | MT, ID | Normal | 0 | n/a |
| Monongahela Power | WV | Normal | 0 | n/a |
| Nolin Rural Electric Cooperative | KY | Normal | 0 | n/a |
| North Itasca Electric Cooperative | MN | Normal | 0 | n/a |
| Northern Lights | ID, MT, WA | Normal | 0 | n/a |
| Northern Neck Electric Cooperative | VA | Normal | 0 | n/a |
| Orcas Power & Light Cooperative | WA | Normal | 0 | n/a |
| Pee Dee EMC | NC | Normal | 0 | n/a |
| People's Cooperative Services | MN | Normal | 0 | n/a |
| Piedmont EMC | NC | Normal | 0 | n/a |
| Polk County Rural Public Power District | NE | Normal | 0 | n/a |
| Poudre Valley REA | CO | Normal | 0 | n/a |
| Powder River Energy | WY, MT | Normal | 0 | n/a |
| Public Service Company of Oklahoma | OK | Normal | 0 | 0% |
| PUD No 1 of Cowlitz County | WA | Normal | 0 | n/a |
| PUD No 1 of Pend Oreille County | WA | Normal | 0 | n/a |
| PUD No 3 of Mason County | WA | Normal | 0 | n/a |
| Randolph EMC | NC | Normal | 0 | n/a |
| Red River Valley Cooperative Power Association | MN | Normal | 0 | n/a |
| Renville-Sibley Cooperative Power Association | MN | Normal | 0 | n/a |
| Roanoke EMC | NC | Normal | 0 | n/a |
| Runestone Electric Association | MN | Normal | 0 | n/a |
| Rural Electric Cooperative | OK | Normal | 0 | n/a |
| Rutherford EMC | NC | Normal | 0 | n/a |
| Sioux Valley SW Electric Cooperative | SD, MN | Normal | 0 | n/a |
| Snohomish County PUD | WA | Normal | 0 | n/a |
| South Central Indiana REMC | IN | Normal | 0 | n/a |
| South River EMC | NC | Normal | 0 | n/a |
| Stearns Cooperative Electric Association | MN | Normal | 0 | n/a |
| Steele-Waseca Cooperative Electric | MN | Normal | 0 | n/a |
| Surry-Yadkin EMC | NC | Normal | 0 | n/a |
| Tideland EMC | NC | Normal | 0 | n/a |
| TNMP | TX | Normal | 0 | 0% |
| Town of Erwin | TN | Normal | 0 | n/a |
| Tri-County EMC (NC) | NC | Normal | 0 | n/a |
| Vermont Electric Cooperative | VT | Normal | 0 | n/a |
| Versant Power | ME | Normal | 0 | 0% |
| Wake EMC | NC | Normal | 0 | n/a |
| Wild Rice Electric Cooperative | MN | Normal | 0 | n/a |
| Wright-Hennepin Cooperative Electric Association | MN | Normal | 0 | n/a |