Minnesota / St. Peter
Is solar worth it in St. Peter?
Northern States Power Co - Minnesota averages 17.0¢/kWh. With 4.3 peak sun hours a day, a typical 8.3 kW system makes ~10,342 kWh a year and saves about $1,756 in year one.
No federal tax credit is included. The 30% homeowner credit (IRS §25D) ended for systems installed after Dec 31, 2025. What changed in 2026 →
How St. Peter compares
That is faster than the Minnesota average of 12.2 years, mainly because St. Peter's rate is above the state average of 15.5¢/kWh. Your own payback depends on your bill: enter your ZIP and monthly bill above for your number.
| Nearby city | Rate | Payback | 25-yr net |
|---|---|---|---|
| North Mankato | 17.0¢ | 10.8 yrs | $42,152 |
| Mankato | 17.0¢ | 10.8 yrs | $42,152 |
| New Ulm | 17.0¢ | 11.1 yrs | $41,212 |
| Faribault | 17.0¢ | 11.3 yrs | $40,853 |
| Waconia | 17.0¢ | 11.1 yrs | $41,212 |
| Prior Lake | 17.0¢ | 11.3 yrs | $40,853 |
| Chaska | 17.0¢ | 11.3 yrs | $40,853 |
| Shakopee | 17.0¢ | 11.3 yrs | $40,853 |
Questions
How long does solar take to pay off in St. Peter, MN?
About 11.1 years for a typical 8.3 kW system at 17.0 cents/kWh, assuming $2.75/W installed, full net metering and 3% yearly rate increases, with no federal tax credit.
Is solar worth it in St. Peter?
Often, if you plan to stay long-term. Our estimate is $1,756 saved in year one and $41,212 net over 25 years after paying for the system.
How much does a solar system cost in St. Peter?
A 8.3 kW system sized for an average home (863 kWh/month) is about $22,825 before any local rebates, at $2.75 per watt. Real quotes vary by roof and installer.
Is there a federal solar tax credit in 2026?
Not for homeowners who buy their system. The 30% Residential Clean Energy Credit (IRS section 25D) does not apply to installations completed after December 31, 2025. State rebates, SRECs and utility incentives may still apply.
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