Solar + Battery Storage in Rhode Island

Rhode Island homeowners across 62 towns are served by 3 electric utilities, with residential rates ranging from 17.1¢ to 37.0¢ per kWh. Pairing rooftop solar with battery storage maximizes self-consumption and provides backup power during outages — Rhode Island homes experience an average of 6 outage hours per year.

A typical solar+battery system combines an 8kW solar array ($24,000-$30,000) with a 10-13.5 kWh battery ($12,000-$18,000). While Rhode Island does not have a statewide battery rebate, many utilities offer their own solar and battery incentives. The federal residential ITC (Section 25D) expired December 31, 2025, so state and utility programs are now the primary incentives for homeowner purchases.

Rhode Island participates in demand response programs that pay battery owners for peak shaving. At $250/kW/year, a typical 5kW battery earns approximately $1,250/year in passive income, significantly improving the economics of battery storage.

NuWatt Energy designs and installs solar+battery systems directly across Rhode Island — licensed electricians, no subcontractors. We handle system design, battery sizing, utility interconnection, and all permitting. Browse the utilities and towns below for location-specific data.