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Little Compton, Rhode Island
This coastal Rhode Island home faces a double challenge: high electricity costs with Rhode Island Energy rates averaging $0.29/kWh, and vulnerability to nor’easters and storm-driven power outages. The homeowner needed a system that would both offset daily electricity usage and provide reliable backup power during extended outages.
In Rhode Island, solar homeowners can benefit from programs like REG program ($0.27/kWh, 15-20 years) and REF rebate ($0.65/W, up to $5,000). Sales tax exempt (7%). Property tax exempt (20 years).
Important: The federal residential solar tax credit (Section 25D) expired on December 31, 2025. All savings calculations for this project reflect $0 federal tax credit for homeowner-purchased systems.
We designed a 8.2 kW system using 20 Q.CELLS Q.PEAK DUO ML-G11+ panels (410W each). Q.CELLS Q.PEAK DUO panels feature half-cut cell technology with excellent anti-degradation performance. Made by Hanwha, they carry a 25-year product warranty and are widely recognized for consistent real-world output.
The Enphase IQ8+ microinverters convert DC to AC at each individual panel, maximizing production even when some panels are shaded. Enphase’s panel-level monitoring lets the homeowner track performance of every single panel through the Enphase app. The IQ8 series also supports Sunlight Backup — limited daytime power during grid outages even without a battery.
The Panasonic EverVolt 20kWh battery system was selected for its high capacity and reliable backup performance. Panasonic’s EverVolt line features robust lithium-ion cells with a 15-year warranty. The system is configured for essential-load backup during grid outages.
Equipment Reviews
Rhode Island REG program guarantees $0.27/kWh for 15-20 years. The REF rebate provides $0.65/W capped at $5,000 plus a $2,000 battery adder.
Federal Tax Credit Status: The residential solar tax credit (Section 25D) expired December 31, 2025. Homeowner-purchased systems receive $0 federal tax credit. All savings estimates above are calculated without any federal credit. Third-party owned systems (leases/PPAs) may still benefit from the commercial ITC (Section 48/48E) claimed by the financing company.
“Coastal location meant we needed equipment rated for salt air exposure. NuWatt recommended the right hardware and the battery has been a lifesaver during nor'easters.”
Homeowner in Little Compton, RI
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