Solar by state › New York › Long Island
Solar panels in Long Island, NY: cost and savings
In Long Island, NY, each kW of solar produces about 1,200 kWh a year. A home with a $150 monthly PSEG Long Island bill needs roughly 5.4 kW, which costs about $17,300 before incentives and saves about $1,620 in the first year.
Updated 2026-10-20. Production uses the New York average until city data is refreshed. See methodology.
Savings by electric bill in Long Island
| Monthly bill | System size | Cost before incentives | Year-1 savings | Payback (buy) |
|---|---|---|---|---|
| $100 | 3.6 kW | $11,500 | $1,080 | 10 yrs |
| $150 | 5.4 kW | $17,300 | $1,620 | 10 yrs |
| $250 | 9 kW | $28,800 | $2,700 | 10 yrs |
| $350 | 12.6 kW | $40,300 | $3,780 | 10 yrs |
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Frequently asked questions
How much do solar panels cost in Long Island?
In Long Island, NY, each kW of solar produces about 1,200 kWh a year. A home with a $150 monthly PSEG Long Island bill needs roughly 5.4 kW, which costs about $17,300 before incentives and saves about $1,620 in the first year.
Who is the electric utility in Long Island?
Most Long Island homes are served by PSEG Long Island. Most residential systems still receive net metering credits, with newer systems paying a monthly customer benefit contribution charge.
How many solar quotes should I get in Long Island?
Get two or three quotes, and compare price per watt, equipment, warranty and the installer's financial strength. Several large installers have gone bankrupt since 2024, so ask who will honor the workmanship warranty if the company closes.