Solar + battery installation in Connecticut
Battery-coupled solar is the package that closes most often in Connecticut. Federal Clean Tech ITC (30%) on storage stacks with state net metering. Free quote, ~2 minutes.
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- Average system size
- $3.00/W
- Average cost (USD)
- 8 yrs
- Average payback
- 130+
- Local installers
Why solar in Connecticut
Connecticut has some of the highest electricity prices in the country, which is the reason solar works here, and in 2026 it also made the single largest adverse change to residential solar economics of any state. Retail net metering closed to new residential customers at the end of 2021 and was replaced by the Residential Renewable Energy Solutions programme, a 20-year contract on one of two tariffs. From January 1, 2026 new enrollees on the Netting tariff pay a non-bypassable charge, the Solar Energy Adjustment, set at $0.0402 per kWh against $0.005 previously, and it is levied on every kilowatt hour the system generates rather than only on what is exported. Earlier enrollees are reported to keep the old rate, which is worth confirming with your own utility. Everything else about Connecticut solar still works: the state average residential price was around 27.4 cents per kWh in mid-2026, roughly fourth highest in the nation, and the sales and property tax exemptions both remain.
Incentives & rebates
Net metering: RRES Netting or Buy-All tariff (no retail net metering)
Connecticut closed retail net metering to new residential customers at the end of 2021. New projects sign a 20-year Residential Renewable Energy Solutions contract with Eversource or United Illuminating and choose one of two tariffs at the outset. Under the Netting tariff the system serves the home first and excess generation earns bill credits at the retail rate, which is the closer analogue to old net metering. Under the Buy-All tariff the utility purchases the entire output of the system at a fixed tariff rate for the full 20 years, and the household separately buys all the electricity it uses at the ordinary retail rate, which trades upside for predictability. The tariff choice cannot be changed afterwards. From January 1, 2026 Netting enrollees also pay the Solar Energy Adjustment, a non-bypassable charge PURA set at $0.0402 per kWh for 2026 against $0.005 for earlier enrollees, levied on total generation rather than only on exports. Because that charge applies to every kilowatt hour the system produces, it reduces the value of self-consumption as well as of export, and it should be visible as its own line in any savings model rather than buried in a net figure.
Why solar + battery in Connecticut
Connecticut has some of the highest electricity prices in the country, which is the reason solar works here, and in 2026 it also made the single largest adverse change to residential solar economics of any state. Retail net metering closed to new residential customers at the end of 2021 and was replaced by the Residential Renewable Energy Solutions programme, a 20-year contract on one of two tariffs. From January 1, 2026 new enrollees on the Netting tariff pay a non-bypassable charge, the Solar Energy Adjustment, set at $0.0402 per kWh against $0.005 previously, and it is levied on every kilowatt hour the system generates rather than only on what is exported. Earlier enrollees are reported to keep the old rate, which is worth confirming with your own utility. Everything else about Connecticut solar still works: the state average residential price was around 27.4 cents per kWh in mid-2026, roughly fourth highest in the nation, and the sales and property tax exemptions both remain.
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How payback works in Connecticut
- System cost
- $21,000
- Estimated net cost
- $21,000
- Estimated payback
- ~13.0 years
- 25-year net savings
- ~$19,500
These figures are illustrative; your actual quote reflects your roof, sun exposure, and local utility rates.