Solar Atlas · Utah
Is solar worth it in Salt Lake City, UT?
A 7 kWdc rooftop array in Salt Lake City makes about 10,385 kWh a year (NLR PVWatts, modeled) and pays back in more than 25 years at PacifiCorp’s 13.8¢/kWh residential rate (Aug 2025–Jul 2026), with no federal credit. Exports follow Rocky Mountain Power Utah Schedule 137 (Net Billing).
40.76°N · 9.1–14.9 h daylight · site signature
- Production
- 1,484 kWh per kWdc per year · capacity factor 16.9% AC
- Residential rate
- 13.8¢/kWh · PacifiCorp
- Exported solar
- Rocky Mountain Power Utah Schedule 137 (Net Billing) · 4.31¢/kWh
- Climate
- hot-summer Mediterranean continental (Köppen Dsa, bordering BSk, Csa) · 12.6 °C mean, 394 mm/yr
Source: NLR PVWatts v8.5.0 (NSRDB PSM V3 GOES tmy-2020 3.2.0) — 1 kW, tilt 20°, azimuth 180°, roof mount, 14% losses · fetched 2026-09-24 · modeled, not metered
Source: EIA-861M utility average · Aug 2025–Jul 2026 · EIA Utah average Jan–Jul 2026 13.2¢ · utility’s EIA-861 2024 average 12.5¢
Source: Rocky Mountain Power (Utah) customer generators on Schedule 137 · checked 2026-09-24
Source: NOAA NCEI Climate Normals 1991–2020, SALT LAKE CITY INTL AP, UT US (7 km away) · fetched 2026-09-24
No federal credit: the homeowner credit (§25D) ended for systems installed after 2025-12-31. A lease or PPA price may reflect the lessor’s §48E credit. 26 U.S.C. §25D(h) and (e)(8)(A) · policy as of 2026-09-24
Make it your answer
Start from your bill. Everything else is prefilled from this page and can be changed.
Your exact roof, or a business
The payback calculator runs hourly PVWatts at your address. The Modeler opens a grid-tied home at Salt Lake City. A business goes to the Quote Studio with the 10.3¢/kWh commercial rate.