Wyoming electric rates and bill calculators
In November 2026, 1,000 kWh costs from $139.39 on Rocky Mountain Power to $167.93 on Black Hills Energy (Cheyenne Light) (2 utilities with a complete bill), before sales tax. That is 13.9¢ to 16.8¢ per kWh with all the charges of the tariff. Select your utility to calculate your own bill. Each calculator uses the tariff of the utility. The Wyoming Public Service Commission approves these tariffs.
- 2 utilities
- Average bill in 2025: $111.59 a month
- Rates checked October 20, 2026
Utilities in Wyoming
What 1,000 kWh costs in Wyoming (November 2026)
The same bill on the tariff of each utility: 1,000 kWh in a 30-day November billing period, before sales tax. The most expensive utility is first. Compare all 92 utilities.
| Utility | 1,000 kWh | Per kWh | Change from October |
|---|---|---|---|
| Black Hills Energy (Cheyenne Light)Schedule R | $167.93 | 16.79¢ | $0.00 |
| Rocky Mountain PowerSchedule 2 · Type of service: Single-phase (normal home) | $139.39 | 13.94¢ | $0.00 |
Rate increase requests: Rocky Mountain Power (20000-710-ER-26). See pending rate increases.
See all Wyoming electric utilities with their average bills, including the ones without a calculator on this site yet.
Help paying the bill: Black Hills Energy (Cheyenne Light) bill help, Rocky Mountain Power bill help.
Cities: electricity in Cheyenne, electricity in Casper, electricity in Gillette, electricity in Laramie.
Average electric bill in Wyoming
In 2025, the average home in Wyoming used 835 kWh a month and paid $111.59 a month (13.4¢ per kWh). The U.S. average was $150.68 (874 kWh, 17.2¢ per kWh). These are yearly averages from the EIA-861 data of the U.S. Energy Information Administration. See the average electric bill in Wyoming by utility and by month, the average bill in each state, the average bill of an apartment, business electricity rates in Wyoming and natural gas bills in Wyoming. To turn watts or kWh into dollars at the Wyoming price, use the electricity cost calculator.
| Utility | Homes | kWh a month | Price per kWh | Average bill |
|---|---|---|---|---|
| Rocky Mountain Power | 118,517 | 710 | 15.1¢ | $107.47 |
| Black Hills Energy (Cheyenne Light) | 44,072 | 526 | 17.3¢ | $91.16 |
The average bill is different from the 1,000 kWh bill above: it uses the real average kWh of each utility's homes and the rates of 2025.
The same bill in each month of the year
1,000 kWh in a 30-day billing period, calculated for each month with the rates in the tariff for that month. Only the rates change, not the kWh, so the difference comes from seasonal rates and monthly charges. The largest difference is first.
| Utility | Lowest month | Highest month | Difference |
|---|---|---|---|
| Black Hills Energy (Cheyenne Light)Schedule R | $167.93January | $167.93January | $0.00 |
| Rocky Mountain PowerSchedule 2 | $139.39January | $139.39January | $0.00 |
How electricity prices work in Wyoming
- Your address decides your utility. The tariff of that utility gives the price of each kWh and the monthly charges.
- Not in the calculations. Sales tax, city fees and discount programs are not in the tables on this page. The calculator of each utility shows them where the tariff gives them.
What is the average electric bill in Wyoming?
In 2025, the average home in Wyoming used 835 kWh a month and paid $111.59 a month, 13.4¢ per kWh, from the EIA-861 data of the U.S. Energy Information Administration. The U.S. average was $150.68 (874 kWh, 17.2¢ per kWh). Your own bill depends on your utility and your kWh.
How much is a 1,000 kWh electric bill in Wyoming?
In November 2026, 1,000 kWh costs from $139.39 on Rocky Mountain Power to $167.93 on Black Hills Energy (Cheyenne Light) (2 utilities with a complete bill), before sales tax. That is 13.9¢ to 16.8¢ per kWh with all the charges of the tariff. The bill is for a 30-day billing period at the standard residential rate of each utility.
Which Wyoming utility has the lowest electric rates?
Of the 2 utilities in the table, Rocky Mountain Power has the lowest bill for 1,000 kWh in November 2026 ($139.39). You cannot select your utility: it is the utility that serves your address. The order can change with the season and with your kWh.
Who sets electric rates in Wyoming?
The Wyoming Public Service Commission approves the rates of Black Hills Energy (Cheyenne Light) and Rocky Mountain Power. Each calculator on this site uses the approved tariff of the utility.
This list shows only the utilities with checked tariffs. Some homes in Wyoming get electricity from an electric cooperative or a city utility. We do not have these tariffs yet. Send the name of your utility to contactus@utilityratecalc.com.
Do you want solar panels or an electric vehicle? The US solar calculator and the EV charging from solar calculator on ProSolarCalc estimate the savings and the payback. Also read what changed in the federal solar tax credit in 2026. Sri Murugan Systems also makes ProSolarCalc.
No account needed: all rate changes (RSS feed) · a monthly reminder for your calendar · save your bills in this browser. Each month, the bill comparison shows what 1,000 kWh costs at every utility.
State regulator: Wyoming Public Service Commission.