Black Diamond Power Co electricity rates
Black Diamond Power Co charges an average of 15.35 cents per kilowatt-hour to residential customers, and the average household on its system paid $119 a month using 777 kilowatt-hours, according to its 2024 filing with the U.S. Energy Information Administration.
Investor-owned utility PJM West Virginia
Where Black Diamond Power Co sits
It is a smaller system, serving 3,479 residential customers, which means its fixed costs are spread across a narrow base. Its 15.35¢ per kilowatt-hour sits 8.6% below the West Virginia average of 16.80¢.
Consumption here is below the national norm at 777 kilowatt-hours a month against 871, which softens the effect of the rate on the final bill.
A shareholder-owned company whose rates are set by the state regulator, including an approved return on the capital it has invested. That matters because a bill is not only the cost of generating electricity: it also carries the cost of the network, and who owns that network changes how it is paid for.
| Rate | Monthly bill | Monthly kWh | |
|---|---|---|---|
| Black Diamond Power Co | 15.35¢ | $119 | 777 |
| West Virginia average | 16.80¢ | $165 | 1,064 |
| United States average | 18.44¢ | $155 | 871 |
Utility figures: U.S. Energy Information Administration, Form EIA-861 annual electric power industry report, 2024. State and national figures: Electric Power Monthly, May 2026. Methodology
Where Black Diamond Power Co delivers
Its service territory covers 4 West Virginia counties, either wholly or in part. Utility boundaries follow historic franchise agreements rather than county lines, so a county appearing here does not mean every address in it is served by Black Diamond Power Co.
- Clay
- Kanawha
- Raleigh
- Wyoming
Other West Virginia utilities
| Utility | Rate | Bill | Customers |
|---|---|---|---|
| Appalachian Power Co | 16.77¢ | $185 | 348,946 |
| Monongahela Power Co | 13.97¢ | $125 | 334,588 |
| The Potomac Edison Company | 12.59¢ | $153 | 135,266 |
| Wheeling Power Co | 17.41¢ | $157 | 34,392 |
Black Diamond Power Co rates: common questions
How much does Black Diamond Power Co charge per kilowatt-hour?
An average of 15.35 cents per kilowatt-hour across its residential customers in 2024. That is -8.6% against the West Virginia average of 16.80¢ and -16.8% against the national average of 18.44¢. It is an all-in average across every residential rate schedule the utility offers, not a specific tariff.
What is the average Black Diamond Power Co bill?
$119 a month, based on total residential revenue divided by residential customers over the 2024 survey year, at an average of 777 kWh a month. The national average bill is $155 at 871 kWh.
Who owns Black Diamond Power Co?
It is classified by the EIA as a investor-owned utility. A shareholder-owned company whose rates are set by the state regulator, including an approved return on the capital it has invested.
Is Black Diamond Power Co expensive compared with other West Virginia utilities?
It ranks #3 of the 5 West Virginia utilities covered here, counting from the most expensive. Nationally it ranks #378 of 1369.