New York / Lake Grove
Is solar worth it in Lake Grove?
Long Island Power Authority averages 24.6¢/kWh. With 4.4 peak sun hours a day, a typical 8.0 kW system makes ~10,304 kWh a year and saves about $2,532 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 Lake Grove compares
That is faster than the New York average of 9.3 years, mainly because Lake Grove's rate is above the state average of 21.7¢/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 |
|---|---|---|---|
| Patchogue | 24.6¢ | 7.8 yrs | $70,305 |
| Babylon | 24.6¢ | 7.8 yrs | $70,305 |
| Lindenhurst | 24.6¢ | 7.8 yrs | $70,305 |
| Massapequa Park | 24.6¢ | 7.8 yrs | $70,305 |
| Westbury | 24.6¢ | 7.8 yrs | $70,305 |
| Glen Cove | 24.6¢ | 7.8 yrs | $70,305 |
| Freeport | 24.6¢ | 7.8 yrs | $70,305 |
| Hempstead | 24.6¢ | 7.8 yrs | $70,305 |
Questions
How long does solar take to pay off in Lake Grove, NY?
About 7.8 years for a typical 8.0 kW system at 24.6 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 Lake Grove?
Yes for most homeowners who stay 10+ years. Our estimate is $2,532 saved in year one and $70,305 net over 25 years after paying for the system.
How much does a solar system cost in Lake Grove?
A 8.0 kW system sized for an average home (863 kWh/month) is about $22,000 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.
Get real installer quotes in Lake Grove
Your number above is an estimate. Real bids usually land within 15%. Free, no obligation.
We may earn a referral fee from partners. Disclosure