Connecticut Solar Incentives 2026: The Complete Picture
Understanding Connecticut solar incentives 2026 starts with a surprising fact: this small, not-especially-sunny state has some of the fastest solar paybacks in America. The reason is not sunshine, it is price. Eversource residential rates reached about 30.5 cents per kWh in April 2026, the highest in the continental United States. Every kilowatt-hour your roof produces displaces power at that price, which shortens payback more than any rebate could.
Connecticut's traditional net metering closed to new customers at the end of 2021. Its replacement, the Residential Renewable Energy Solutions (RRES) program, is run jointly by Eversource and United Illuminating under the Public Utilities Regulatory Authority (PURA). New solar customers choose one of two 20-year tariffs: Netting or Buy-All. There is no enrollment deadline, and both options remain open in 2026.
RRES Tariffs: Netting vs Buy-All
Under the Netting tariff, your solar production powers your home first and excess generation earns bill credits at the full retail rate, much like classic net metering. Under Buy-All, the utility buys every kWh your system produces at a PURA-approved rate locked for 20 years, while you keep buying your home's power normally. Buy-All suits homeowners who want predictable income; Netting suits those who want maximum bill offset.
What changed for 2026 enrollees
Two 2026 changes matter. First, the base Netting production incentive is $0.000/kWh for 2026 applications, meaning Netting customers now rely on retail bill credits plus any adder they qualify for (low-income and distressed-municipality adders still exist). Second, a Solar Energy Adjustment charge of $0.0402/kWh applies to 2026 enrollees' total generation, up sharply from $0.005/kWh, worth roughly $455 a year on an 11 kW system. Factor both into any quote before comparing against 2025-era payback claims.
Tax Exemptions and Battery Rebates
- 100% property tax exemption: the value solar adds to your home is fully exempt from Connecticut property tax.
- 100% sales tax exemption: solar equipment purchases are fully exempt from state sales tax.
- Energy Storage Solutions: battery rebates up to $200/kWh, which pairs well with solar since stored evening power avoids buying at 30-cent rates.
- Smart-E loans: Connecticut Green Bank financing with no money down, 6.99% to 7.99% APR depending on term, up to $50,000, and up to 25% of the loan can cover related roof work.
What Solar Costs and Pays Back in Connecticut
Northeast installed prices run above the national average, often $3.00 to $3.50 per watt, putting an 8 kW system near $24,000 to $28,000. But at 30.5 cents per kWh, that system offsets roughly $3,300 a year in electricity, before counting any RRES payments. Even after the 2026 program changes, payback commonly lands between 6 and 9 years. High rates do the heavy lifting that the ended federal credit used to do.
Get quotes from multiple Connecticut-licensed installers, confirm which RRES tariff each quote assumes, and verify the 2026 Solar Energy Adjustment is in the math. Then run the numbers through our 2026 cost benchmarks and check each proposal against the red flags guide.