Is solar worth it in Idaho?

With an average payback period of 15.8 years and 25-year savings of $22,175, solar panels in Idaho can be worthwhile depending on your situation.

How much do solar panels cost in Idaho?

The average cost of a 6kW residential solar system in Idaho is $14,000 before incentives and tax credits.

How much can I save with solar panels in Idaho?

Homeowners in Idaho save an average of $887 per year with solar panels, totaling approximately $22,175 over 25 years.

Solar Panel ROI in Idaho

Is solar worth it in ID?

1.6x ROI Score

15.8 yrs Payback Period

$887 Annual Savings

Key Solar Metrics for Idaho

Solar Irradiance	5.22 kWh/m²/day
Estimated Annual Production (6kW system)	8,786 kWh
Average Electricity Rate	$0.101/kWh
Average System Cost	$14,000
Estimated Annual Savings	$887/year
Payback Period	15.8 years
25-Year Savings	$22,175

Idaho vs National Average

Solar Irradiance 5.22 kWh/m²/day +5.2% vs national avg

National Avg Irradiance 5.12 kWh/m²/day baseline

Payback Period 15.8 years Slower than average

How We Calculated This

Our solar ROI calculations use data from the National Renewable Energy Laboratory (NREL) PVWatts API, which models solar energy production based on location-specific solar irradiance, weather patterns, and panel tilt angles. We assume a standard 6kW residential system with south-facing panels at optimal tilt.

Electricity rates are sourced from the U.S. Energy Information Administration (EIA) and represent state-level residential averages. Annual savings are calculated by multiplying estimated production by the local electricity rate. The payback period divides system cost by annual savings. The ROI score represents total 25-year savings divided by system cost.

These estimates do not include federal tax credits (currently 30% ITC), state incentives, SRECs, or utility rebates, which can significantly reduce the effective payback period. Actual results vary based on roof orientation, shading, local weather, and utility rate changes.

Compare with Nearby States

Montana 14.7 yr payback $968/yr savings Wyoming 14.2 yr payback $1,017/yr savings Utah 13.6 yr payback $1,013/yr savings Nevada 9.7 yr payback $1,407/yr savings Oregon 16.5 yr payback $886/yr savings Washington 21.9 yr payback $676/yr savings

Solar Outlook for Idaho

Idaho receives 5.22 kWh/m²/day — 5.2% above the national average. Lower electricity rates of $0.101/kWh extend the payback to 15.8 years, though the federal 30% ITC and state incentives can meaningfully improve the economics.

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