| Utility | State | Customers | Residential rate |
|---|
| G & K, Inc | AK | 122 | — |
| Gainesville Regional Utilities | FL | 104,731 | 14.72¢ |
| Galena Electric Utility | AK | 394 | — |
| Garkane Energy Coop, Inc | UT | 16,345 | 11.72¢ |
| Garland Light & Power Company | WY | 2,361 | — |
| Gascosage Electric Coop | MO | 10,233 | 13.26¢ |
| Georgia Power Co | GA | 2,833,530 | 16.28¢ |
| Gexa Energy, LP | TX | 380,220 | 17.42¢ |
| Gibson Electric Members Corp | TN | 39,436 | 13.74¢ |
| Gila River Indian Utility Authority (GRICUA) | AZ | 3,466 | 14.27¢ |
| Glacier Electric Coop, Inc | MT | 7,964 | — |
| Glades Electric Coop, Inc | FL | 18,374 | 18.27¢ |
| Glencoe Light & Power Comm | MN | 2,966 | 9.25¢ |
| Gold Country Energy | AK | 137 | — |
| Golden Valley Elec Assn Inc | AK | 48,554 | 31.47¢ |
| Goldenwest Electric Coop, Inc | MT | 853 | — |
| Goltry Public Works Authority | OK | 166 | — |
| Good Charlie & Co., LLC | TX | 19,603 | 14.04¢ |
| Goodhue County Coop Elec Assn | MN | 5,282 | — |
| Gowrie Municipal Utilities - (IA) | IA | 611 | — |
| Grady Electric Membership Corp | GA | 20,683 | 15.03¢ |
| Grafton Electric - (IA) | IA | 161 | — |
| Graham County Electric Coop Inc | AZ | 8,585 | — |
| Grand Electric Coop, Inc | MT | 16 | — |
| Grand Rapids Public Util Comm | MN | 7,610 | — |
| Grand River Dam Authority | OK | 78 | — |
| Grand Valley Power | CO | 20,095 | 16.20¢ |
| Grayson Rural Electric Coop Corp | KY | 15,639 | 15.99¢ |
| Grayson-Collin Elec Coop, Inc | TX | 103,461 | 17.04¢ |
| Great American Gas & Electric, LLC | NY | 12,955 | 13.02¢ |
| Great American Power, LLC | IL | 1,539 | 10.30¢ |
| Great Lakes Energy Coop | MI | 135,145 | 20.32¢ |
| Green Mountain Energy Company | TX | 393,752 | 18.09¢ |
| Green Mountain Power Corp | VT | 276,986 | 23.29¢ |
| Green USA, LLC | NY | 638 | — |
| Greenbacker Renewable Energy Corporation | VT | 107 | 11.11¢ |
| Greenbelt Electric Coop, Inc | TX | 5,678 | 17.88¢ |
| Greenlight Energy Inc. | NY | 5,183 | 16.00¢ |
| Greenskies Renewable Energy, LLC | CT | 84 | — |
| Greenville Utilities Comm | NC | 75,238 | 12.68¢ |
| Greenwood CPW | SC | 14,679 | 9.97¢ |
| Greenwood Utilities Comm | MS | 8,959 | 11.42¢ |
| Greer Commission of Public Wks | SC | 27,612 | 12.81¢ |
| GreyStone Power Corporation | GA | 156,150 | 12.55¢ |
| Grid Power Direct, LLC | NY | 280 | — |
| Gridmatic Retail LLC | TX | 316 | — |
| Groton Dept of Utilities - (CT) | CT | 14,193 | 18.05¢ |
| Grundy Center Mun Light & Power | IA | 1,576 | — |
| Grundy County Rural Elec Coop | IA | 2,265 | — |
| Grundy Electric Coop, Inc | IA | 224 | — |
| Guadalupe Valley Elec Coop Inc | TX | 107,295 | 11.83¢ |
| Guam Power Authority | GU | 53,718 | 30.93¢ |
| Guernsey-Muskingum El Coop Inc | OH | 17,224 | 18.25¢ |
| Gulf Coast Electric Coop, Inc | FL | 23,259 | 14.89¢ |
| Gunnison County Elec Assn. | CO | 11,879 | — |
| Guntersville Electric Board | AL | 6,944 | 13.78¢ |
| Guthrie County Rural E C A | IA | 4,998 | — |
| Gwitchyaa Zhee Utility Co | AK | 366 | — |