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NuWatt designs, installs, and manages solar, battery, heat pump, and EV charger systems across 9 states. One company, one warranty, one point of contact.
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Earn $225/kW annually through ConnectedSolutions, get a $2,000 REF battery adder, and protect your home from coastal storms. NuWatt installs Tesla Powerwall 3, Enphase IQ, and Franklin aPower2 batteries across Rhode Island.
Between ConnectedSolutions income and the REF adder, Rhode Island batteries can pay for themselves faster than nearly any other state.
Earn $225/kW annually by participating in Rhode Island Energy summer demand response events. A 13.5 kWh battery earns ~$1,100-$1,500/year.
The Renewable Energy Fund provides a $2,000 adder when you install battery storage alongside solar panels.
Rhode Island coastal storms and nor'easters cause frequent power outages. A battery keeps your lights, fridge, and essentials running.
Store cheap solar energy during the day and use it during expensive evening peak hours to maximize bill savings.
Three options to match your backup needs, budget, and existing solar equipment.
All prices include installation. Federal 25D tax credit is $0 in 2026. REF $2,000 battery adder available when installed with solar.
Rhode Island experiences frequent nor'easters, hurricanes, and coastal storms. A battery keeps your home powered when the grid goes down.
Lights, fridge, Wi-Fi, phone chargers — 12-24 hours on a single battery.
Add HVAC, cooking, and more. With solar recharging, backup is indefinite.
Power everything including EV charging and electric heat during outages.
Answers to common questions about battery storage in Rhode Island.
Battery storage in Rhode Island costs $6,000-$14,500 per unit depending on the system. Tesla Powerwall 3 runs $12,500-$14,500, Enphase IQ Battery 5P starts at $6,000-$8,000 per 5 kWh unit, and Franklin aPower2 costs $11,000-$13,000. The REF battery adder provides $2,000 back when installed with solar.
ConnectedSolutions is Rhode Island Energy's demand response program. Battery owners earn $225/kW annually by allowing the utility to briefly draw on stored energy during summer peak events (typically 15-30 events per summer). A Tesla Powerwall 3 can earn $1,100-$1,500/year. You control participation and can opt out of any event.
No. The Section 25D residential energy credit expired December 31, 2025. There is no federal tax credit for residential battery storage in 2026. However, the $2,000 REF battery adder and ConnectedSolutions income ($225/kW/yr) make batteries economically attractive in Rhode Island.
You can install a standalone battery, but the $2,000 REF battery adder requires solar panels to be installed alongside. ConnectedSolutions does not require solar — any grid-connected battery qualifies. However, solar + battery maximizes your savings and provides true energy independence.
A single Tesla Powerwall 3 (13.5 kWh) can power essential loads (lights, fridge, Wi-Fi, phone chargers) for 12-24 hours depending on usage. Whole-home backup typically requires 2-3 batteries. With solar panels charging the battery during the day, you can maintain backup power indefinitely during extended outages.
All three batteries NuWatt installs (Tesla Powerwall 3, Enphase IQ, Franklin aPower2) are indoor-rated and protected from coastal conditions. Tesla Powerwall 3 offers the highest power output for whole-home backup. Enphase is ideal for modular expansion. Franklin offers strong value for budget-conscious homeowners.
Battery storage allows you to store excess solar production instead of exporting it at 80% retail rate via net metering. By using stored energy during evening peak hours, you avoid buying electricity at full retail rate. This arbitrage can save an additional $300-$600/year on top of ConnectedSolutions income.
NuWatt installs battery storage across all of Rhode Island. We handle permitting, Rhode Island Energy interconnection, ConnectedSolutions enrollment, and REF battery adder applications as part of every installation.
Free consultation, ConnectedSolutions enrollment, REF battery adder application, and professional installation. Custom recommendation in 24 hours.