Rhode IslandSolar Panel Costs & Savings
Rhode Island averages 3.8 hrs of peak sun per day with an average payback period of 6.5 years. Homeowners can save $48,600 over 20 years.
Peak Sun Hours
3.8 hrs
per day
6kW System Cost
$20,400
before incentives
Payback Period
6.5 yrs
average
20-Year Savings
$48,600
estimated
Solar Cost Breakdown in Rhode Island
| Item | Amount |
|---|---|
| 6kW System Cost ($3.4/W) | $20,400 |
| Federal Tax Credit (30%) | -$6,120 |
| Net Cost | $14,280 |
Net Metering
Full Net Metering
Electricity Rate
28.08¢/kWh
Avg Monthly Bill
$131/mo
Solar Incentives in Rhode Island
Rhode Island Renewable Energy Growth Program
REG provides fixed per-kWh payments for residential solar generation over 20 years.
Federal Solar Investment Tax Credit (ITC)
The federal ITC allows homeowners to deduct 30% of solar installation costs from federal taxes. Available for systems installed through 2032, stepping down to 26% in 2033 and 22% in 2034.
Solar Potential by ZIP Code in Rhode Island
Compare With Other States
More Data for Rhode Island
Frequently Asked Questions
How much do solar panels cost in Rhode Island?
A typical 6kW solar system in Rhode Island costs approximately $20,400 before incentives. After the 30% federal tax credit ($6,120), the net cost is approximately $14,280.
How long does solar take to pay for itself in Rhode Island?
The average solar payback period in Rhode Island is 6.5 years, faster than the national average of 9.4 years. After payback, homeowners enjoy free electricity for the remaining system life.
Does Rhode Island have net metering?
Rhode Island has full net metering. Homeowners receive full retail rate credits for excess solar energy sent to the grid.
How much sun does Rhode Island get for solar?
Rhode Island averages 3.8 peak sun hours per day, which is 0.7 hours below the national average. A 6kW system produces approximately 8,322 kWh per year.
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Data verified March 2026 · Source: NREL, DSIRE, EIA