Rocky Mountain Power (Utah): how it credits the solar power you send to the grid
4.855 cents per kWh in June through September and 4.033 cents the rest of the year, reset every March 1.
Checked November 12, 2026. Utilities change these rules; check the current tariff before you sign.
How it works
We use 4.3 cents, the year-round average of the two seasonal rates. That estimate is about 33% of Utah's average electricity price.
Utah's Schedule 137 credits exported power at a seasonal rate and bills imported power at retail.
The rate is set each year, so savings estimates should use the current number.
Rocky Mountain Power's Idaho customers have their own, similar export rate.
What it means for a typical Utah home
An average Utah home uses about 9,132 kWh a year. A 5.5 kW system costs about $14,135 at the 2026 median price and makes about 8,162 kWh in its first year, of which we assume about 4,897 kWh goes out to the grid because no one is home to use it.
| First-year savings | Payback | 25-year savings, after the price | |
|---|---|---|---|
| With Rocky Mountain Power (Utah)'s credit | $636 | 22 years | $3,569 |
| If every exported kWh earned the full price | $1,063 | 14 years | $17,225 |
The difference, about $13,656 over 25 years, is what Rocky Mountain Power (Utah)'s rules cost a typical system compared with full net metering. Using more of the power at home, while the sun is up, closes some of that gap. Uses Utah's average electricity price; Rocky Mountain Power (Utah)'s own prices may be higher or lower. Paid in cash, no federal credit, prices rising 2.5% a year, one inverter replacement.
Utilities in neighboring states
| Utility | State | Exported power | Credit |
|---|---|---|---|
| Rocky Mountain Power (Utah) | Utah | Reduced credit (net billing) | 4.3¢ (est.) |
| Arizona Public Service (APS) | Arizona | Reduced credit (net billing) | 6.17¢ |
| Tucson Electric Power (TEP) | Arizona | Reduced credit (net billing) | 5.1¢ |
| Salt River Project (SRP) | Arizona | Reduced credit (net billing) | 3.45¢ |
| NV Energy | Nevada | Reduced credit (net billing) | About 75% of retail |
| Xcel Energy (Colorado) | Colorado | Full credit (net metering) | Full retail |
| Idaho Power | Idaho | Reduced credit (net billing) | 4¢ (est.) |
All 55 utilities · Solar in Utah · Lease and PPA terms by company
Sources: Utah PSC: Schedule 137 export credit rates, 2026; Idaho PUC: Rocky Mountain Power export credit rate; U.S. Energy Information Administration (EIA), final 2025 data: Annual State Historical Spreadsheets (Form EIA-861, released October 7, 2026) and Electric Power Annual (October 21, 2026); EnergySage: median quoted price, first half of 2026.