Solar in Twin Falls, ID
With Idaho Power's electricity at about 12.6¢ per kWh and 1,521 kWh of sun per kW, solar is not worth it for a typical Twin Falls home today: about a 17-year payback.
- Payback, typical home
- 17 yrsIdaho: 18.3 yrs
- 25-year net
- $4,401after paying $8,295
- Sun
- 1,521kWh per kW per year
- Electricity
- 12.6¢30% below U.S. average
A typical Twin Falls home, by the numbers
| Utility | Idaho Power |
|---|---|
| Electricity use | 899 kWh a month |
| Best-value system | 3.5 kW, about 8 panels, 5,324 kWh a year (49% of use) |
| Cost | $13,825, or $8,295 after state incentives |
| First-year savings | $538 |
| Payback | 17.0 years |
| Exported power | 4.5¢/kWh (Idaho Power) |
Cash purchase, no federal credit, 1.8% yearly rate increases. Run it with your own numbers.
Homes in Twin Falls
- Owner-occupied homes
- 64%
- Single-family detached
- 70%
- Median home value
- $321k
- Median year built
- 1982
- Population
- 54,164
- Roofs suitable for solar†
- 88%
Census ACS 2020–2024. †Share of 14,547 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Installers working in Twin Falls
Public installation records for Idaho don't name installers, so we can't rank local companies here. Browse installers in Idaho.
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Twin Falls
Is solar worth it in Twin Falls, ID?
For a typical home in Twin Falls, solar is not worth it at 2026 prices: a 3.5 kW system costs about $8,295 after state incentives, saves about $538 in year one and pays back in about 17 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Twin Falls?
About 1,521 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 7% more than the Idaho average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Twin Falls?
Most homes in Twin Falls are served by Idaho Power, at about 12.6¢ per kWh on average.
How much do solar panels cost in Twin Falls?
A fair cash price is around $3.45 per watt before incentives, so about $13,825 for a 3.5 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Pocatello 17.7 yrs
- Boise City 17.9 yrs
- Kuna 17.6 yrs
- Meridian 17.6 yrs
- Eagle 18 yrs
- Nampa 18.1 yrs
- Caldwell 18.3 yrs
- Idaho Falls 15.8 yrs
- All of Idaho
Data: PVWatts (National Laboratory of the Rockies), EIA-861 2025 adjusted to 2026, U.S. Census ACS, LBNL Tracking the Sun, state policy research as of October 2026.