Solar Panel Cost in Idaho (2026)
The average solar panel installation in Idaho costs $2.90 per watt, or about $17,400 for a typical 6kW residential system before state and local incentives. Over 25 years, homeowners in Idaho can expect to save an estimated $28,000, with a payback period of around 9 years.
$2.90
Cost per Watt
$17,400
Avg System Cost
9 years
Payback Period
$28,000
25-Year Savings
Solar Panel Costs in Idaho
Average cost per watt: $2.90 | Payback period: 9 years
| System Size | Estimated Cost | Est. 25-Year Savings |
|---|---|---|
| 4 kW | $11,600 | $18,667 |
| 6 kW | $17,400 | $28,000 |
| 8 kW | $23,200 | $37,333 |
| 10 kW | $29,000 | $46,667 |
| 12 kW | $34,800 | $56,000 |
Solar Savings in Idaho
Idaho residents currently pay an average of $10.0 cents/kWh for electricity. While this is below the national average of 16 cents/kWh, Idaho homeowners still benefit from solar thanks to state incentives, net metering, and rising electricity costs.
Idaho offers net metering, which means you earn credits on your electricity bill for any excess solar energy you send back to the grid. This can significantly reduce or even eliminate your electricity bill.
With an average of 4.7 peak sun hours per day, Idaho receives good solar irradiance, supporting strong energy production throughout the year.
Solar Cost FAQs for Idaho
Ready to Go Solar?
Get a free, no-obligation quote from top-rated installers in your area.
Get Your Free Quote