Idaho vs Michigan Solar Comparison
Idaho gets more sun (4.7 hrs/day) while Michigan has the faster payback (9.5 years).Michigan offers higher 20-year savings at $30,600.
Idaho
4.7 hrs
12.5yr payback
$22,400
20yr savings
Michigan
3.6 hrs
9.5yr payback
$30,600
20yr savings
Side-by-Side Comparison
| Metric | Idaho | Michigan |
|---|---|---|
| Peak Sun Hours | 4.7 hrs | 3.6 hrs |
| Cost per Watt | $3.00 | $3.20 |
| 6kW System Cost | $18,000 | $19,200 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | None | None |
| State Rebate | None | None |
| Net Metering | Full Net Metering | Full Net Metering |
| Electricity Rate | 11.15¢/kWh | 19.34¢/kWh |
| Payback Period | 12.5 years | 9.5 years |
| 20-Year Savings | $22,400 | $30,600 |
Verdict
Michigan is the better state for solar ROI with $30,600 in 20-year savings and a 9.5-year payback period. Idaho has more sun exposure at 4.7 hrs/day, making it ideal for maximum energy production. Both states qualify for the 30% federal solar tax credit.
Frequently Asked Questions
Is solar better in Idaho or Michigan?
Idaho gets more sun (4.7 peak hours/day vs 3.6). Michigan has a faster payback (9.5 years) and Michigan offers higher 20-year savings ($30,600).
How do solar costs compare between Idaho and Michigan?
A 6kW system costs $18,000 in Idaho vs $19,200 in Michigan before incentives. Both qualify for the 30% federal tax credit.
Explore More
Was this data helpful?
Data verified March 2026 · Source: NREL, DSIRE, EIA