Complete Guide to Solar Energy in Rhode Island

Your complete resource for solar energy in Rhode Island. Everything you need to know about REG incentives, net metering, renewable energy tax exemptions, and solar installation across the Ocean State.

Calculate Savings Learn the Basics
$2.94
Cost per Watt (2025)
5-7 years
Average Payback Period
27.92¢/kWh
Average Electricity Rate
4.23 hours
Daily Peak Sun Hours

Why Rhode Island is Perfect for Solar Energy

Highest Electricity Rates in America

With average electricity rates of 27.92¢/kWh—71% above the national average—Rhode Island homeowners pay some of the highest utility bills, making solar savings exceptional and payback periods remarkably short.

Renewable Energy Growth (REG) Program

The REG program offers 15-20 year fixed contracts with performance-based payments of 26.15-27.75¢ per kWh generated, providing guaranteed income that significantly accelerates solar returns beyond standard net metering.

Complete Tax Exemptions

100% sales tax exemption (saving 7%) plus property tax exemption for renewable energy systems ensure solar adds no tax burden while increasing your home’s value significantly.

Net Metering Up to 125%

Rhode Island allows net metering for systems generating up to 125% of on-site consumption, ensuring you receive full bill credits for excess generation at retail rates.

Quick Solar Facts

Average System Size: 7-10 kW
Annual Generation: 8,500-12,000 kWh
Federal Tax Credit: 30% (until December 31, 2025)
Typical Payback: 5-7 years
System Lifespan: 25-30 years

Explore Solar Topics

Laws & Regulations

Federal ITC, REG program contracts, net metering policies, sales and property tax exemptions, solar easement laws, and consumer protection regulations.

Residential Solar

Complete guide for Rhode Island homeowners, system sizing for coastal climate, roof requirements, and optimizing production with 4.23 peak sun hours daily.

Costs & Savings

2025 pricing at $2.94-$3.07 per watt, combined incentive benefits, long-term savings analysis with 25-year projections exceeding $130,000 in total returns.

Financing Options

Solar loans, cash purchase advantages, Rhode Island Energy programs, home equity options, and choosing between REG or net metering pathways.

Installation Guide

Finding licensed installers, REG program enrollment vs. net metering applications, Rhode Island Energy interconnection, and permitting requirements.

Solar 101

Solar technology fundamentals, equipment selection for coastal environments, battery storage for grid resilience, and maintenance in ocean-influenced climate.

Community Solar

Virtual net metering programs, shared solar subscriptions, community solar projects, and options for renters and condo owners.

Solar Calculator

Estimate your solar savings and system requirements.

Quick Solar Savings Calculator

Important 2026 Updates

Winter Electricity Rate Increase (October 2025)

Rhode Island Public Utilities Commission approved a 16% increase in winter electric rates starting October 1, 2025, bringing average residential bills to 27.92¢/kWh. This rate hike makes solar an increasingly attractive investment with faster payback periods and greater long-term savings.
Rate Increase Details →

REG Program 2025 Enrollment

Rhode Island Energy’s Renewable Energy Growth Program continues accepting applications for 2025 with fixed performance-based payments. Small-scale residential solar systems can lock in 15-20 year contracts at 26.15-27.75¢/kWh, providing guaranteed income superior to standard net metering.
REG Program Information →

Rhode Island Solar Laws & Regulations

Understanding the legal framework that supports solar energy in Rhode Island

Sales & Property Tax Exemptions

Rhode Island provides 100% sales tax exemption (7%) on all solar equipment and installation purchases. Additionally, renewable energy systems used in residential and manufacturing sectors are exempt from property taxes, ensuring solar adds no tax burden while increasing home value.
Learn More →

Net Metering Program

Rhode Island allows net metering for systems up to 10 MW designed to generate up to 125% of on-site consumption. Customers receive bill credits for excess generation at retail rates (27.92¢/kWh average), with credits rolling over monthly for maximum value.
Learn More →

Renewable Energy Growth (REG) Program

The REG program, administered by Rhode Island Energy, offers 15-20 year fixed-rate contracts with performance-based payments of 26.15-27.75¢/kWh for residential solar. This alternative to net metering provides guaranteed long-term income. Note: You cannot participate in both REG and net metering simultaneously.
Learn More →