Rocky Mountain Power WY
Rocky Mountain Power WY is a electric only utility serving 200,000 customers in Wyoming. Average residential rate: 11.72¢/kWh (31.9% below national average).
11.72¢
per kWh
200,000
customers
WY
state
Electric Only
service type
Rate Comparison
| Metric | Rocky Mountain Power WY | Wyoming Avg | National Avg |
|---|---|---|---|
| Avg Rate | 11.72¢/kWh | 11.72¢/kWh | 17.22¢/kWh |
| Est. Monthly Bill (900 kWh) | $105.48 | $105.48 | $154.98 |
| Est. Annual Bill (900 kWh/mo) | $1,265.76 | $1,265.76 | $1,859.76 |
About Rocky Mountain Power WY
Rocky Mountain Power WY is one of the major electric utilities serving Wyoming. With 200,000 customers, it ranks among the smaller utilities in the state.
The utility's average rate of 11.72¢/kWh is 31.9% below the national average of 17.22¢/kWh.
Visit the official Rocky Mountain Power WY website for current rates, outage maps, and payment options.
Other Utilities in Wyoming
| Utility | Rate (¢/kWh) | Customers | Type |
|---|---|---|---|
| Black Hills Energy WY | 11.30¢ | 42,000 | both |
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Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)