Electric Power Monthly
| Table A.1.B. Relative Standard Error (Percent) for Net Generation by Fuel Type: |
| Total (All Sectors) by Census Division and State, Year-to-Date through March 2025 |
| Census Region and State | Coal | Petroleum Liquids | Petroleum Coke | Natural Gas | Other Gases | Nuclear | Hydroelectric Conventional |
|---|---|---|---|---|---|---|---|
| New England | 0 | 25 | 0 | 2 | 0 | 0 | 9 |
| Connecticut | 0 | 34 | 0 | 0.43 | 0 | 0 | 29 |
| Maine | 0 | 137 | 0 | 10 | 0 | 0 | 11 |
| Massachusetts | 0 | 44 | 0 | 4 | 0 | 0 | 20 |
| New Hampshire | 0 | 39 | 0 | 0 | 0 | 0 | 19 |
| Rhode Island | 0 | 100 | 0 | 16 | 0 | 0 | 178 |
| Vermont | 0 | 154 | 0 | 0 | 0 | 0 | 17 |
| Middle Atlantic | 34 | 55 | 0 | 1 | 35 | 0 | 3 |
| New Jersey | 0 | 107 | 0 | 3 | 0 | 0 | 0 |
| New York | 0 | 21 | 0 | 2 | 0 | 0 | 2 |
| Pennsylvania | 34 | 202 | 0 | 1 | 155 | 0 | 14 |
| East North Central | 0.33 | 9 | 23 | 1 | 32 | 0 | 21 |
| Illinois | 0.09 | 32 | 0 | 5 | 99 | 0 | 58 |
| Indiana | 1 | 6 | 0 | 2 | 34 | 0 | 30 |
| Michigan | 0.09 | 12 | 0 | 2 | 0 | 0 | 46 |
| Ohio | 1 | 11 | 52 | 2 | 53 | 0 | 29 |
| Wisconsin | 0.22 | 92 | 0 | 3 | 0 | 0 | 35 |
| West North Central | 1 | 15 | 0 | 7 | 0 | 0 | 16 |
| Iowa | 0.24 | 33 | 0 | 9 | 0 | 0 | 50 |
| Kansas | 0 | 25 | 0 | 14 | 0 | 0 | 0 |
| Minnesota | 1 | 84 | 0 | 11 | 0 | 0 | 56 |
| Missouri | 0 | 19 | 0 | 14 | 0 | 0 | 26 |
| Nebraska | 5 | 114 | 0 | 72 | 0 | 0 | 49 |
| North Dakota | 0.19 | 16 | 0 | 32 | 0 | 0 | 36 |
| South Dakota | 0 | 119 | 0 | 48 | 0 | 0 | 23 |
| South Atlantic | 2 | 6 | 3 | 1 | 0 | 0 | 9 |
| Delaware | 0 | 70 | 0 | 0 | 0 | 0 | 0 |
| District of Columbia | 0 | 1,260 | 0 | 36 | 0 | 0 | 0 |
| Florida | 0 | 14 | 0 | 1 | 0 | 0 | 42 |
| Georgia | 0.22 | 15 | 117 | 3 | 0 | 0 | 16 |
| Maryland | 0 | 8 | 0 | 0.36 | 0 | 0 | 1 |
| North Carolina | 0.03 | 26 | 0 | 1 | 0 | 0 | 13 |
| South Carolina | 0 | 27 | 0 | 2 | 0 | 0 | 19 |
| Virginia | 0 | 15 | 0 | 2 | 0 | 0 | 23 |
| West Virginia | 6 | 0 | 0 | 16 | 0 | 0 | 17 |
| East South Central | 0 | 4 | 0 | 1 | 0 | 0 | 5 |
| Alabama | 0 | 45 | 0 | 3 | 0 | 0 | 7 |
| Kentucky | 0 | 8 | 0 | 6 | 0 | 0 | 9 |
| Mississippi | 0 | 17 | 0 | 1 | 0 | 0 | 0 |
| Tennessee | 0 | 1 | 0 | 0.46 | 0 | 0 | 8 |
| West South Central | 0 | 18 | 0 | 2 | 4 | 0 | 10 |
| Arkansas | 0 | 55 | 0 | 12 | 0 | 0 | 13 |
| Louisiana | 0 | 207 | 0 | 1 | 8 | 0 | 24 |
| Oklahoma | 0 | 8 | 0 | 6 | 0 | 0 | 19 |
| Texas | 0 | 22 | 0 | 3 | 4 | 0 | 26 |
| Mountain | 2 | 16 | 0 | 1 | 5 | 0 | 10 |
| Arizona | 0 | 13 | 0 | 1 | 0 | 0 | 10 |
| Colorado | 6 | 94 | 0 | 2 | 0 | 0 | 33 |
| Idaho | 0 | 0 | 0 | 22 | 0 | 0 | 19 |
| Montana | 5 | 44 | 0 | 24 | 0 | 0 | 18 |
| Nevada | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
| New Mexico | 0 | 588 | 0 | 5 | 0 | 0 | 103 |
| Utah | 0 | 11 | 0 | 2 | 0 | 0 | 55 |
| Wyoming | 4 | 4 | 0 | 4 | 6 | 0 | 52 |
| Pacific Contiguous | 0 | 30 | 0 | 2 | 0 | 0 | 3 |
| California | 0 | 18 | 0 | 2 | 0 | 0 | 6 |
| Oregon | 0 | 1,060 | 0 | 5 | 0 | 0 | 6 |
| Washington | 0 | 76 | 0 | 8 | 0 | 0 | 2 |
| Pacific Noncontiguous | 25 | 2 | 0 | 34 | 0 | 0 | 38 |
| Alaska | 25 | 8 | 0 | 34 | 0 | 0 | 40 |
| Hawaii | 0 | 1 | 0 | 0 | 0 | 0 | 111 |
| U.S. Total | 1 | 3 | 14 | 1 | 9 | 0 | 3 |