Current residential rates
Rocky Mountain Power residential rates are shown below, from the utility's published tariffs and the public Utility Rate Database. Rates vary by plan, season, and usage and change over time.
| Plan | Energy charge | Fixed / basic |
|---|---|---|
| Residential Schedule 1, effective December 2025 | Seasonal two tier blocks: summer 9.32 cents/kWh for the first 400 kWh and 12.01 cents above; winter 8.25 and 10.63 cents, plus Schedule 80 riders. | $12.00/month single family customer charge ($7.00 multi family) |
| Optional time of use | Off peak power around 6.3 to 7.1 cents/kWh against a 6 to 10 pm weekday on peak of 28.4 to 32.1 cents, with a first year guarantee refunding any excess over 10 percent above the standard schedule. | $12.00/month plus a $10 one time connection fee |
The 2025 general rate case added about 4.7 percent to a typical single family bill, and a pending wildfire fund surcharge would add 4.48 percent (about $3.70 a month) for ten years if approved. Even so, Utah remains among the cheapest power on this site, which cuts both ways for solar: bills are easy to offset but savings per kWh are small.
The cheapest power on this site
Rocky Mountain Power (Utah)'s average residential electricity price has risen from 11.49 cents per kWh in 2015 to 12.52 cents in 2024, an increase of about 9 percent, or roughly 1.0 percent per year. The chart shows Rocky Mountain Power's average residential price by year. Hover any point for the exact figure.
The March expiry
Utah's use-it-or-lose-it credit calendar
Schedule 137 credits carry month to month but expire at the March meter reading that closes each annualized billing period. Banking a big summer surplus to coast through the following year does not work; whatever is left in March vanishes. Combined with export credits around a third of retail, the design pushes hard toward systems sized to on-site consumption rather than maximum roof coverage.
Net billing at a third of retail
Utah closed retail net metering years ago, and new rooftop systems up to 25 kW land on Schedule 137 net billing. Consumption is billed at normal Schedule 1 rates while every exported kWh earns a credit of 4.855 cents in summer and 4.033 cents in winter under the rates effective March 2026, applied against the energy portion of the bill. Unused credits carry month to month but expire at the March meter read that closes each annualized billing period, so overbuilding to bank summer surplus into the following year does not work. With retail around 12 cents and exports worth about 4 to 5, the program pays roughly a third of retail for surplus power, which combined with Utah's low rates makes self consumption sizing and patience about payback the honest framing here.
The honest Utah math
Rocky Mountain Power's rates have barely moved in a decade, up about 9 percent total since 2015, and even after the 4.7 percent 2025 rate case increase they remain among the country's cheapest. Cheap power means small savings per offset kWh, which stretches solar payback beyond what sunnier headline states advertise.
The optional time-of-use rate adds an angle: off-peak power at 6 to 7 cents against a 6 to 10 pm peak near 30 cents rewards batteries and load shifting more than panels alone. If a wildfire fund surcharge pending before the PSC is approved, bills would rise another 4.48 percent for a decade, slowly improving the offset math. Run the numbers with Utah's actual rates, not national averages, and get a site-specific quote.
What rising Rocky Mountain Power rates could cost you
Rocky Mountain Power rates have risen about 1.0% per year. Enter your bill to see what that pace of increase could compound to over time, and what you have likely already absorbed. This is an estimate, not a guarantee.
Estimate only. Projects your current bill forward at Rocky Mountain Power's historical average rate increase (1.0% per year, from EIA data); it assumes your usage stays the same except for any add-ons you select. Actual rates depend on your usage, rate plan, and the utility's future filings, and are not guaranteed. This is general information, not financial advice.
Rocky Mountain Power service area
Rocky Mountain Power serves Most of populated Utah including the Salt Lake City metro, as the Utah arm of PacifiCorp, which serves 2.1 million customers across six western states. Over 1 million of Rocky Mountain Power's customers are in Utah..
To confirm whether a specific address is served by Rocky Mountain Power, check your electricity bill. A ZIP lookup tool is coming to this site.
Full data and sources
Per-utility prices are computed from EIA Form 861 (bundled residential revenue divided by sales), which reconciles to the EIA's published figures. These are public-domain U.S. government data.
| Year | Rocky Mountain Power (c/kWh) |
|---|---|
| 2015 | 11.49 |
| 2016 | 11.59 |
| 2017 | 11.46 |
| 2018 | 10.72 |
| 2019 | 10.66 |
| 2020 | 10.71 |
| 2021 | 10.65 |
| 2022 | 11.13 |
| 2023 | 11.27 |
| 2024 | 12.52 |
Sources: EIA Form 861, Sales to Ultimate Customers (2015 to 2024) · Rocky Mountain Power, Utah Schedule 1 tariff · Rocky Mountain Power, Utah Schedule 137 Net Billing tariff · Utah PSC, 2024 general rate case order
FAQ
Does Rocky Mountain Power have net metering in Utah?
Not retail net metering; that closed years ago. New systems up to 25 kW use Schedule 137 net billing: consumption bills at normal rates while exports earn 4.855 cents per kWh in summer and 4.033 in winter under rates effective March 2026, roughly a third of retail.
Do my solar credits expire?
Yes. Credits offset the energy portion of later bills within the annualized billing period, but anything unused expires at the March meter read that closes the cycle. The program is designed against banking a summer surplus into the next year.
Why is solar payback slower in Utah?
Because the power being offset is cheap, about 12.5 cents per kWh on average, among the lowest of any utility we cover. Low rates are good news for bills and modest news for solar economics; systems sized tightly to on-site use fare best.
What are Rocky Mountain Power's current rates?
Residential Schedule 1 bills 9.32 cents per kWh for the first 400 kWh and 12.01 above in summer, 8.25 and 10.63 in winter, plus a 12 dollar monthly charge and riders, under sheets effective December 2025. The 2025 rate case added about 4.7 percent to a typical bill, and a 4.48 percent wildfire surcharge is pending.