Electric Power Monthly
| Table A.8.B. Relative Standard Error for Average Price of Electricity to Ultimate Customers |
| by End-Use Sector, Census Division, and State, Year-to-Date through March 2026 |
| Census Region and State | Residential | Commercial | Industrial | Transportation | Total |
|---|---|---|---|---|---|
| New England | 0.42 | 0.18 | 1 | 0 | 0.23 |
| Connecticut | 1 | 0.38 | 2 | 0 | 0.32 |
| Maine | 1 | 0.47 | 1 | 0 | 0.44 |
| Massachusetts | 1 | 0.27 | 2 | 0 | 0.38 |
| New Hampshire | 1 | 0.42 | 2 | 0 | 1 |
| Rhode Island | 0.36 | 0 | 0 | 0 | 0.06 |
| Vermont | 4 | 2 | 6 | 0 | 3 |
| Middle Atlantic | 0.27 | 0.08 | 0.26 | 0 | 0.11 |
| New Jersey | 1 | 0.15 | 1 | 0 | 0.23 |
| New York | 0.47 | 0.11 | 1 | 0 | 0.20 |
| Pennsylvania | 0.39 | 0.16 | 0.21 | 0 | 0.16 |
| East North Central | 0.41 | 0.27 | 0.39 | 0 | 0.20 |
| Illinois | 1 | 0.26 | 0.49 | 0 | 0.33 |
| Indiana | 2 | 1 | 1 | 0 | 1 |
| Michigan | 0.38 | 1 | 1 | 0 | 1 |
| Ohio | 0.48 | 0.18 | 1 | 0 | 0.22 |
| Wisconsin | 1 | 2 | 1 | 0 | 1 |
| West North Central | 1 | 1 | 1 | 0 | 1 |
| Iowa | 1 | 5 | 1 | 0 | 1 |
| Kansas | 5 | 4 | 4 | 0 | 3 |
| Minnesota | 1 | 3 | 2 | 0 | 1 |
| Missouri | 2 | 1 | 3 | 0 | 1 |
| Nebraska | 1 | 4 | 3 | 0 | 2 |
| North Dakota | 1 | 3 | 1 | 0 | 1 |
| South Dakota | 2 | 9 | 5 | 0 | 4 |
| South Atlantic | 1 | 0.37 | 1 | 0 | 0.34 |
| Delaware | 2 | 1 | 4 | 0 | 1 |
| District of Columbia | 0.05 | 0.01 | 1 | 0 | 0.02 |
| Florida | 1 | 1 | 2 | 0 | 1 |
| Georgia | 2 | 1 | 2 | 0 | 1 |
| Maryland | 1 | 0.13 | 1 | 0 | 0.19 |
| North Carolina | 1 | 1 | 2 | 0 | 1 |
| South Carolina | 2 | 2 | 1 | 0 | 1 |
| Virginia | 1 | 1 | 1 | 0 | 0.49 |
| West Virginia | 1 | 1 | 0.03 | 0 | 0.39 |
| East South Central | 1 | 1 | 1 | 0 | 1 |
| Alabama | 2 | 2 | 1 | 0 | 1 |
| Kentucky | 2 | 1 | 2 | 0 | 1 |
| Mississippi | 3 | 3 | 2 | 0 | 2 |
| Tennessee | 1 | 1 | 2 | 0 | 1 |
| West South Central | 1 | 1 | 1 | 0 | 0.49 |
| Arkansas | 2 | 2 | 2 | 0 | 1 |
| Louisiana | 2 | 2 | 1 | 0 | 1 |
| Oklahoma | 3 | 2 | 2 | 0 | 2 |
| Texas | 1 | 1 | 1 | 0 | 1 |
| Mountain | 3 | 1 | 1 | 0 | 1 |
| Arizona | 4 | 0.41 | 2 | 0 | 1 |
| Colorado | 8 | 1 | 2 | 0 | 3 |
| Idaho | 1 | 4 | 2 | 0 | 1 |
| Montana | 1 | 7 | 3 | 0 | 2 |
| Nevada | 4 | 0.40 | 1 | 0 | 1 |
| New Mexico | 13 | 2 | 2 | 0 | 4 |
| Utah | 8 | 1 | 2 | 0 | 3 |
| Wyoming | 2 | 5 | 2 | 0 | 2 |
| Pacific Contiguous | 1 | 0.49 | 0 | 0 | 0.29 |
| California | 1 | 0.43 | 0 | 0 | 0.28 |
| Oregon | 1 | 2 | 2 | 0 | 1 |
| Washington | 1 | 1 | 2 | 0 | 1 |
| Pacific Noncontiguous | 2 | 6 | 2 | 0 | 2 |
| Alaska | 2 | 11 | 6 | 0 | 5 |
| Hawaii | 3 | 0 | 0 | 0 | 1 |
| U.S. Total | 0.32 | 0.18 | 0.24 | 0 | 0.14 |