Black Diamond Power Co electricity rates in West Virginia, 2025
Black Diamond Power Co’s 3,243 residential customers paid an average of 20.10¢ per kWh in 2025, 31% above the West Virginia average of 15.39¢. The typical home used 855 kWh a month, for an average bill of $172.
- 20.10¢avg ¢/kWh (2025)+4.75¢ (+30.9%) vs 2024
- $172Avg monthly billWest Virginia: $165
- 855 kWhAvg monthly useWest Virginia: 1,073 kWh
- 3,243Residential customersFull-service utility
| Sector | Customers | Sales (MWh) | Revenue | ¢/kWh 2025 | ¢/kWh 2024 | Change |
|---|---|---|---|---|---|---|
| Residential | 3,243 | 33,279 | $6,687,800 | 20.10¢ | 15.35¢ | +4.75¢ (+30.9%) |
| Commercial | 450 | 14,485 | $2,757,000 | 19.03¢ | 14.06¢ | +4.97¢ (+35.4%) |
| Industrial | 0 | 0 | $0 | n/a | n/a | n/a |
| All sectors | 3,693 | 47,764 | $9,444,800 | 19.77¢ | 14.96¢ | +4.81¢ (+32.2%) |
How Black Diamond Power Co compares
- West Virginia residential average, 2025: 15.39¢ per kWh, 1,073 kWh a month, $165 average bill. U.S. average: 17.23¢, 874 kWh, $151.
- Among 5 full-service utilities in West Virginia with at least 1,000 residential customers, Black Diamond Power Co ranks 5 of 5 from lowest to highest average price.
- Latest monthly figure: West Virginia homes paid 16.31¢ per kWh in August 2026 (preliminary), against 15.62¢ in August 2025. Summer months often run higher than the annual average.
- From 2024 to 2025 this average rose 30.9%; the state average rose 2.1%.
- Black Diamond Power Co is an investor-owned utility, a private company whose rates are set by the state utility commission. Balancing authority: PJM.
Where Black Diamond Power Co serves
EIA lists 4 West Virginia counties in its 2025 service territory: Clay, Kanawha, Raleigh, Wyoming.
6 ZIP codes are matched to Black Diamond Power Co in NREL’s 2024 ZIP file: 25133, 25801, 25827, 25878, 25908, 25921. Utility boundaries do not follow ZIP lines, so a ZIP can have more than one provider.
West Virginia full-service utilities with similar rates
| Provider | ¢/kWh | Avg bill | Customers |
|---|---|---|---|
| The Potomac Edison Company | 13.10¢ | $165 | 138,070 |
| Monongahela Power Co | 14.31¢ | $133 | 334,336 |
| Appalachian Power Co | 16.97¢ | $196 | 347,654 |
| Wheeling Power Co | 17.61¢ | $166 | 34,202 |
Sources
- U.S. Energy Information Administration, Annual Electric Power Industry Report, Form EIA-861, 2025 final data (f8612025.zip, file dated October 7, 2026): Sales to Ultimate Customers, Average Monthly Bill and Service Territory tables.
- EIA Form EIA-861, 2024 final data (f8612024.zip, file dated December 4, 2025), for the 2024 comparison.
- EIA Electric Power Monthly, Table 5.6.A (average price by state, August 2026 and August 2025; 2026 values are preliminary), file dated October 22, 2026.
- National Renewable Energy Laboratory via OpenEI, U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2024) (investor-owned and other utilities, files dated November 10, 2025), used only to match ZIP codes to utilities.
Average price = residential revenue ÷ residential kWh sold, as reported to EIA. It includes fixed monthly charges, taxes passed through in revenue and seasonal tiers, averaged over the year. Your own rate depends on your tariff and usage.
All West Virginia electricity providers · How we compute rates