Solar in Idaho Falls, ID
With PacifiCorp (Rocky Mountain Power / Pacific Power)'s electricity at about 14.7¢ per kWh and 1,450 kWh of sun per kW, solar is not worth it for a typical Idaho Falls home today: about a 15.8-year payback.
- Payback, typical home
- 15.8 yrsIdaho: 18.3 yrs
- 25-year net
- $5,757after paying $8,649
- Sun
- 1,450kWh per kW per year
- Electricity
- 14.7¢18% below U.S. average
A typical Idaho Falls home, by the numbers
| Utility | PacifiCorp (Rocky Mountain Power / Pacific Power) |
|---|---|
| Electricity use | 889 kWh a month |
| Best-value system | 3.7 kW, about 9 panels, 5,365 kWh a year (50% of use) |
| Cost | $14,415, or $8,649 after state incentives |
| First-year savings | $598 |
| Payback | 15.8 years |
| Exported power | 4.3¢/kWh (PacifiCorp (Rocky Mountain Power / Pacific Power)) |
Cash purchase, no federal credit, 1.8% yearly rate increases. Run it with your own numbers.
Homes in Idaho Falls
- Owner-occupied homes
- 64%
- Single-family detached
- 64%
- Median home value
- $336k
- Median year built
- 1977
- Population
- 67,725
- Roofs suitable for solar†
- 87%
Census ACS 2020–2024. †Share of 17,365 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Installers working in Idaho 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 Idaho Falls
Is solar worth it in Idaho Falls, ID?
For a typical home in Idaho Falls, solar is not worth it at 2026 prices: a 3.7 kW system costs about $8,649 after state incentives, saves about $598 in year one and pays back in about 15.8 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Idaho Falls?
About 1,450 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 2% more than the Idaho average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Idaho Falls?
Most homes in Idaho Falls are served by PacifiCorp (Rocky Mountain Power / Pacific Power), at about 14.7¢ per kWh on average. Some areas are served by City of Idaho Falls, Idaho Power.
How much do solar panels cost in Idaho Falls?
A fair cash price is around $3.45 per watt before incentives, so about $14,415 for a 3.7 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Rexburg 16.1 yrs
- Pocatello 17.7 yrs
- Twin Falls 17 yrs
- Boise City 17.9 yrs
- Meridian 17.6 yrs
- Kuna 17.6 yrs
- Eagle 18 yrs
- Nampa 18.1 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.