How Michigan compares
Michigan ranks 15th of 51 for solar payback, fastest first. The fastest is Hawaii at 5.9 years. At U.S. average figures, payback is 12.3 years.
Two things set payback: what each kWh is worth and how many the panels make. Michigan ranks 13th for electricity price, most expensive first, at 23.05¢/kWh, and 48th for sunshine, at an estimated 1,150 kWh a year per kW of panels. Expensive power does the work here; sunshine is below the U.S. average of 1,350 kWh per kW.
The calculator assumes power sent to the grid earns 75% of the retail price, typical of net metering. Your utility's tariff sets the real rate, and a lower credit slows payback.
Solar pays back faster here than in any neighboring state; next is Ohio at 12.8 years.
More for Michigan
- EV charging cost in Michigan vs gas: an EV saves $921 a year on fuel.
- Heat pump vs gas in Michigan: a heat pump costs $411 a year more.
What these numbers assume
- A 7.0 kW system, sized to cover about 100% of a typical home's yearly use.
- $2.80 per watt installed, paid in cash, with no state or local incentives entered.
- No federal tax credit: Section 25D ended for systems placed in service after December 31, 2025.
- Half the output used in the home as it is made; the rest credited at 75% of the retail price.
- Electricity prices rising 3% a year, panels losing 0.5% of output a year, and a $2,000 inverter replacement in year 12.
Change any of them in the calculator above to match your own bills. The formulas are on the main solar payback calculator.
Sources
- Electricity price: EIA Electric Power Monthly, Table 5.6.A (July 2026 data).
- Household use: EIA 2025 retail sales divided by customers.
- Installed cost: 2026 residential marketplace averages.
- Output per kW: MeterMath estimate for a south-facing fixed roof system, rounded.
- Export credit: MeterMath assumption for typical net metering.
- Tax credit status: Public Law 119-21.