Iowa / Grimes
Is solar worth it in Grimes?
MidAmerican Energy Co averages 11.0¢/kWh. With 4.5 peak sun hours a day, a typical 7.9 kW system makes ~10,302 kWh a year and saves about $1,134 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 Grimes compares
That is slower than the Iowa average of 12.3 years, mainly because Grimes's rate is below the state average of 14.6¢/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 |
|---|---|---|---|
| Urbandale | 11.0¢ | 15.4 yrs | $19,630 |
| Johnston | 11.0¢ | 15.5 yrs | $19,465 |
| Clive | 11.0¢ | 15.4 yrs | $19,630 |
| Waukee | 11.0¢ | 15.4 yrs | $19,630 |
| West Des Moines | 11.0¢ | 15.4 yrs | $19,630 |
| Ankeny | 11.0¢ | 15.5 yrs | $19,465 |
| Des Moines | 11.0¢ | 15.5 yrs | $19,465 |
| Norwalk | 11.0¢ | 15.5 yrs | $19,465 |
Questions
How long does solar take to pay off in Grimes, IA?
About 15.4 years for a typical 7.9 kW system at 11.0 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 Grimes?
Only in some cases; payback is long. Our estimate is $1,134 saved in year one and $19,630 net over 25 years after paying for the system.
How much does a solar system cost in Grimes?
A 7.9 kW system sized for an average home (863 kWh/month) is about $21,725 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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