Solar Panels in Rhode Island (RI)

Last updated: February 24, 2026

Everything you need to know about going solar in Rhode Island (RI) — costs, savings, incentives, and the best equipment for your climate.

Federal Residential Solar Tax Credit Repealed

The 30% residential solar tax credit (Section 25D) was repealed in early 2026. Homeowners who installed solar before the repeal can still claim the credit. Commercial projects retain the 30% ITC under Section 48/48E. Rhode Island state incentives remain available.

Sun Hours/Day

3.9 hrs

Fair Solar Irradiance

8 kW System Cost

$26,400

$3.30/watt installed

Federal Residential ITC

Repealed

Section 25D (early 2026)

Annual Savings

$1,480

11,388 kWh/year

Payback Period

17.8 yrs

then free electricity for 15-20+ yrs

Solar Incentives in Rhode Island

Federal Residential ITC (Section 25D) -- Repealed

The 30% federal residential solar tax credit (Section 25D) was repealed in early 2026. Homeowners who installed solar before the repeal may still claim the credit for that tax year. Commercial solar projects continue to receive the 30% ITC under Section 48/48E.

State Incentives Available

Rhode Island offers state-level solar incentives that remain available despite the federal ITC repeal. Check with your local utility and the DSIRE database for current programs.

Top 3 Recommended Solar Panels for Rhode Island

With 3.9 sun hours/day, Rhode Island homeowners need the most efficient panels to maximize every hour of sunlight:

Panel Wattage Efficiency Temp Coeff Warranty
Renogy 200W 24V Mono N-Type Solar Panel 200W 25% -0.3%/°C 5/25 yr
Renogy 100W Portable Solar Panel 100W 23.5% -0.37%/°C 2/2 yr
Risen Energy Hyper-ion HJT 700W 700W 23% -0.25%/°C 15/30 yr

Top 3 Recommended Batteries for Rhode Island

Pairing solar with battery storage provides backup power during outages and can optimize savings with time-of-use rates:

Battery Capacity Power Chemistry Warranty
HomeGrid Stack'd Series 38.4kWh 38.4 kWh 34.4 kW LFP (Lithium Iron Phosphate) 10 yr
HomeGrid Stack'd Series 28.8kWh 28.8 kWh 25.8 kW LFP (Lithium Iron Phosphate) 10 yr
BYD Battery-Box Premium HVM 22.1 22.08 kWh 22.08 kW LFP (Lithium Iron Phosphate) 10 yr

Frequently Asked Questions

How much do solar panels cost in Rhode Island in 2026?

The average cost of an 8 kW solar system in Rhode Island is approximately $26,400 ($3.30/watt installed). Note: The federal residential solar tax credit (Section 25D) was repealed in early 2026, so the full system cost applies unless state incentives are available. State-level incentives may reduce your out-of-pocket cost. Get 3-5 quotes from local installers for accurate pricing.

Is the federal solar tax credit available in Rhode Island?

The federal residential solar tax credit (Section 25D) was repealed in early 2026. Homeowners who installed solar before the repeal can still claim the credit for that tax year. Commercial solar projects continue to receive the 30% ITC under Section 48/48E. Rhode Island still offers state-level incentives that can reduce your solar costs. Consult a tax professional for the latest guidance.

Can solar panels work efficiently in Rhode Island's climate?

Yes, solar panels work in all climates. Rhode Island's 3.9 peak sun hours/day means choosing high-efficiency panels (21%+ efficiency) is important to maximize production. Cold temperatures actually improve panel efficiency. An 8 kW system can still produce significant savings of approximately $1,480/year.

How much can I save with solar in Rhode Island?

An 8 kW solar system in Rhode Island produces approximately 11,388 kWh/year, saving about $1,480 annually. The estimated payback period is 17.8 years. Over 25 years, total savings can reach $37,000.

Does Rhode Island have net metering?

Net metering policies vary by utility in Rhode Island. Most states offer some form of net metering or net billing that credits solar homeowners for excess electricity sent back to the grid. Contact your local utility or check the DSIRE database for current Rhode Island net metering policies.

What is the best solar panel for Rhode Island?

For Rhode Island with 3.9 sun hours/day, high-efficiency panels are the best choice to maximize energy production. Look for panels with efficiency ratings above 21%.

What is the payback period for solar in Rhode Island?

The estimated payback period for an 8 kW solar system in Rhode Island is 17.8 years. This is calculated as: system cost ($26,400) divided by annual savings ($1,480/year). After payback, solar generates essentially free electricity for 15-20+ more years. State incentives may shorten this further.

Do I need a battery for solar in Rhode Island?

A battery is not required for grid-tied solar in Rhode Island, but it provides backup power during outages and can increase savings with time-of-use rate optimization. Rhode Island's incentive programs may include battery storage rebates.

Does Rhode Island have solar incentives?

Yes, Rhode Island offers state-level solar incentives. These may include state tax credits, rebates, property tax exemptions, sales tax exemptions, or SRECs. The federal residential ITC (Section 25D) was repealed in early 2026. Check the DSIRE database for current programs.

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