Connecticut homeowners consistently pay among the highest electricity rates in the United States — Eversource CT and United Illuminating customers average $0.22–$0.28/kWh. Combined with the federal 30% Investment Tax Credit, Connecticut's Residential Solar Investment Program (RSIP), net metering, and a 15-year property tax exemption, solar panels in Connecticut deliver some of the strongest returns in New England. Enter your address to see what programs are available near you.
Connecticut is regularly among the top 10 states for solar value — not because of its weather, but because of its electricity prices. At $0.22–$0.28/kWh, Eversource CT rates are among the highest of any utility in the country. Every kilowatt-hour your solar panels produce is worth more here than in most of the US.
Connecticut has also layered a strong set of programs on top of the federal ITC: the CT Residential Solar Investment Program (RSIP) provides upfront incentives for new installations, the CT Green Bank offers low-interest Smart-E Loans for solar financing, and the state's 15-year property tax exemption under CGS § 12-81(57) prevents solar from adding to your already-significant property tax bill.
The Inflation Reduction Act provides a 30% federal tax credit on the full system cost — dollar for dollar off your federal income tax. On a $30,000 CT system, that's $9,000 back at tax time.
Connecticut's RSIP is administered by Eversource and United Illuminating on behalf of CT DEEP. The program provides an upfront incentive that reduces your installation cost at signing. Incentive rates and available block capacity are updated periodically — check with your installer for current availability in your utility territory. Your installer submits the application on your behalf.
Connecticut requires both Eversource CT and United Illuminating to credit customers for excess solar generation. Under the netting tariff, excess production earns credits applied to future bills. Your installer coordinates the interconnection application with your utility.
Connecticut law exempts residential solar installations from property tax assessment for 15 years under Connecticut General Statutes § 12-81(57). In high-tax Connecticut towns — Fairfield County property taxes often run $8,000–$25,000/year — this exemption is especially meaningful.
Solar energy equipment is exempt from Connecticut's 6.35% sales tax. On a $30,000 system, that's $1,905 saved at purchase.
The Connecticut Green Bank offers Smart-E Loans for solar through participating lenders — low fixed interest rates, no money down, and accessible to homeowners who may not qualify for traditional financing. Ask your installer about CT Green Bank financing options.
Eversource CT (formerly Connecticut Light & Power) serves the majority of Connecticut — most of the state north and east of Bridgeport. Rates of $0.22–$0.28/kWh make Eversource CT one of the most expensive utilities in New England. Eversource CT administers the RSIP program for its territory and handles net metering interconnection. Typical interconnection timeline: 6–12 weeks.
United Illuminating (UI), now part of Avangrid, serves the Greater New Haven and Greater Bridgeport areas — including New Haven, Bridgeport, Ansonia, Derby, Shelton, Orange, Milford, and surrounding towns. UI rates are comparable to Eversource. UI administers its own RSIP block and handles interconnection for its customers.
2 minutes to submit. No commitment. Licensed CT installers only.