| Table A.2.B. Relative Standard Error (Percent) for Net Generation by Fuel Type: |
| Electric Utilities by Census Division and State, Year-to-Date through January 2026 |
| Census Region and State | Coal | Petroleum Liquids | Petroleum Coke | Natural Gas | Other Gases | Nuclear | Hydroelectric Conventional |
|---|---|---|---|---|---|---|---|
| New England | 0 | 30 | 0 | 89 | 0 | 0 | 20 |
| Connecticut | 0 | 223 | 0 | 0 | 0 | 0 | 34 |
| Maine | 0 | 0 | 0 | 0 | 0 | 0 | 346 |
| Massachusetts | 0 | 29 | 0 | 103 | 0 | 0 | 37 |
| New Hampshire | 0 | 0 | 0 | 0 | 0 | 0 | 213 |
| Rhode Island | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Vermont | 0 | 153 | 0 | 0 | 0 | 0 | 25 |
| Middle Atlantic | 0 | 13 | 0 | 13 | 0 | 0 | 1 |
| New Jersey | 0 | 0 | 0 | 151 | 0 | 0 | 0 |
| New York | 0 | 13 | 0 | 13 | 0 | 0 | 1 |
| Pennsylvania | 0 | 286 | 0 | 0 | 0 | 0 | 0 |
| East North Central | 1 | 45 | 0 | 2 | 0 | 0 | 15 |
| Illinois | 0 | 108 | 0 | 12 | 0 | 0 | 57 |
| Indiana | 1 | 55 | 0 | 5 | 0 | 0 | 29 |
| Michigan | 5 | 53 | 0 | 3 | 0 | 0 | 27 |
| Ohio | 5 | 62 | 0 | 6 | 0 | 0 | 33 |
| Wisconsin | 0 | 156 | 0 | 3 | 0 | 0 | 22 |
| West North Central | 0.37 | 27 | 0 | 8 | 0 | 0 | 10 |
| Iowa | 0.25 | 123 | 0 | 11 | 0 | 0 | 28 |
| Kansas | 0 | 45 | 0 | 13 | 0 | 0 | 0 |
| Minnesota | 0.17 | 83 | 0 | 14 | 0 | 0 | 38 |
| Missouri | 0 | 31 | 0 | 16 | 0 | 0 | 18 |
| Nebraska | 3 | 213 | 0 | 51 | 0 | 0 | 27 |
| North Dakota | 0 | 146 | 0 | 36 | 0 | 0 | 20 |
| South Dakota | 0 | 565 | 0 | 36 | 0 | 0 | 14 |
| South Atlantic | 0.16 | 34 | 0 | 1 | 0 | 0 | 7 |
| Delaware | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Florida | 2 | 29 | 0 | 1 | 0 | 0 | 41 |
| Georgia | 0 | 66 | 0 | 2 | 0 | 0 | 10 |
| Maryland | 0 | 9 | 0 | 0.33 | 0 | 0 | 0 |
| North Carolina | 0 | 184 | 0 | 0 | 0 | 0 | 9 |
| South Carolina | 0 | 33 | 0 | 1 | 0 | 0 | 13 |
| Virginia | 0 | 37 | 0 | 2 | 0 | 0 | 17 |
| West Virginia | 0 | 0 | 0 | 0 | 0 | 0 | 22 |
| East South Central | 0 | 19 | 0 | 1 | 0 | 0 | 4 |
| Alabama | 0 | 32 | 0 | 3 | 0 | 0 | 6 |
| Kentucky | 0 | 49 | 0 | 3 | 0 | 0 | 6 |
| Mississippi | 0 | 47 | 0 | 1 | 0 | 0 | 0 |
| Tennessee | 0 | 3 | 0 | 2 | 0 | 0 | 7 |
| West South Central | 0 | 115 | 0 | 2 | 0 | 0 | 10 |
| Arkansas | 0 | 705 | 0 | 5 | 0 | 0 | 11 |
| Louisiana | 0 | 10 | 0 | 1 | 0 | 0 | 0 |
| Oklahoma | 0 | 27 | 0 | 3 | 0 | 0 | 16 |
| Texas | 0 | 162 | 0 | 3 | 0 | 0 | 28 |
| Mountain | 1 | 181 | 0 | 1 | 0 | 0 | 7 |
| Arizona | 0 | 157 | 0 | 1 | 0 | 0 | 9 |
| Colorado | 0 | 675 | 0 | 2 | 0 | 0 | 23 |
| Idaho | 0 | 0 | 0 | 17 | 0 | 0 | 11 |
| Montana | 0 | 5,935 | 0 | 27 | 0 | 0 | 10 |
| Nevada | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| New Mexico | 0 | 4,233 | 0 | 6 | 0 | 0 | 79 |
| Utah | 0 | 31 | 0 | 2 | 0 | 0 | 36 |
| Wyoming | 4 | 10 | 0 | 5 | 0 | 0 | 29 |
| Pacific Contiguous | 0 | 593 | 0 | 5 | 0 | 0 | 2 |
| California | 0 | 277 | 0 | 1 | 0 | 0 | 6 |
| Oregon | 0 | 1,144 | 0 | 10 | 0 | 0 | 4 |
| Washington | 0 | 670 | 0 | 15 | 0 | 0 | 1 |
| Pacific Noncontiguous | 30 | 10 | 0 | 34 | 0 | 0 | 24 |
| Alaska | 30 | 31 | 0 | 34 | 0 | 0 | 24 |
| Hawaii | 0 | 10 | 0 | 0 | 0 | 0 | 0 |
| U.S. Total | 0.28 | 12 | 0 | 1 | 0 | 0 | 2 |