Solar panels in Idaho
What a residential solar system actually costs in Idaho in 2026 — plus incentives, payback, and how to pick a vetted installer.
The real cost of solar in Idaho
A typical 10 kW rooftop system in Idaho runs about $28,500 installed. The federal Residential Clean Energy Credit knocks 30% off — around $8,550 — bringing the net price to roughly $19,950.
Idaho adds its own incentive: Residential Alternative Energy deduction. Stack that on top of the federal credit.
What you'll produce — and save
- ~14,600 kWh/year from a 10 kW system at 5.0 peak sun hours.
- At 11.5¢/kWh that's $1,679/yr off your electric bill in year one.
- Estimated payback: 11.9 years.
- 25-year net savings (2.5% annual rate escalation): $37,401.
Estimates only. Actual production depends on roof orientation, shade, equipment and your utility's specific tariff.
Net metering in Idaho
Idaho operates under a net billing policy for residential solar exports. Exports are credited at a wholesale/avoided-cost rate rather than the retail rate. Batteries usually improve payback under this policy.
Top Idaho metros we cover
FAQ
How much do solar panels cost in Idaho?
A typical 10 kW residential system in Idaho costs about $28,500 before incentives, or roughly $2.85 per watt installed. After the 30% federal tax credit that drops to about $19,950.
Is solar worth it in Idaho?
With an average residential electricity rate of 11.5¢/kWh and 5.0 peak sun hours per day, a properly sized system typically pays for itself in about 11.9 years and saves roughly $37,401 over 25 years.
Does Idaho have net metering?
Idaho operates under a net billing policy for residential solar exports. Exact credit values vary by utility — always confirm with the specific utility serving your address.
What state incentives are available in Idaho?
State incentive: Residential Alternative Energy deduction. Property tax exemption: No. Sales tax exemption: No. The 30% federal Residential Clean Energy Credit also applies.
Get vetted Idaho installer quotes.
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Compare other states
Sources: EIA average residential electricity rates, NREL PVWatts sun hour data, DSIRE state incentive database, LBNL "Tracking the Sun" installed-cost benchmarks. Figures are estimates for guidance only, not a binding quote.