Solar Panel ROI in Idaho

· Source: NREL PVWatts

Is solar worth it in ID? Here's what the data says.

1.6x ROI Score
15.8 yrs Payback Period
$887/yr Annual Savings
$22,175 25-Year Savings

Your savings estimate

$ /mo bill
Annual savings $887
·
Payback 15.8 yrs
·
25-yr savings $22,175

25-Year ROI Timeline

With a 15.8-year payback, your system spends 9.2 years in profit after breaking even.

Payback (15.8 yrs)
Profit (9.2 yrs)
Year 0 Year 6 Year 13 Year 19 Year 25
System Cost $14,000
25-Year Savings $22,175
Net Profit $8,175

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Solar Calculator for Idaho

Adjust the values below to see your personalized solar ROI estimate.

kW
$
$ /kWh
5.22 kWh/m²/day
Based on NREL data for Idaho
ROI Score 1.6x
Annual Production 8,786 kWh
Annual Savings $887
Payback Period 15.8 years
25-Year Savings $22,175
System Cost $14,000

Idaho vs National Average

Solar Irradiance: Idaho vs National Average Idaho: 5.22 kWh/m²/day National Avg: 5.12 kWh/m²/day
Solar Irradiance 5.22 kWh/m²/day
+2% vs national avg
Payback Period 15.8 years Slower than avg
Electricity Rate $0.101 /kWh Below avg

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). Annual savings are calculated by multiplying estimated production by the local electricity rate. The ROI score represents total 25-year savings divided by system cost.

These estimates do not include the federal 30% ITC tax credit, state incentives, SRECs, or utility rebates, which can significantly reduce the effective payback period.

Solar ROI by Zip Code in Idaho

Explore solar data for specific zip codes in Idaho. Click any zip code for a full local breakdown.

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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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