Connecticut Solar Incentives, Rebates & Tax Credits (2026)

Under the Buy-All option, the utility purchases everything your system generates at $0.3289 per kWh for 20 years, and you keep buying your own power at the normal retail rate. Income-qualified households add $0.055/kWh, and homes in economically distressed municipalities add $0.0275/kWh. Rates are locked for applications submitted during calendar 2026 and are identical for Eversource and United Illuminating.

The Netting option credits your exports at the applicable retail rate, which sounds better than Buy-All until you account for the Solar Production Charge. That charge — $0.0402 per kWh in 2026 — is levied on everything your production meter records, not just what you export. It appears as a separate line on your bill and it is non-bypassable. Run both options against your actual usage before choosing; the answer is genuinely different from household to household.

Below-market financing for solar and battery storage through participating Connecticut lenders. Current rates run 6.99% APR for 5, 7 and 10-year terms, 7.49% for 12 years and 7.99% for 15 years, up to $50,000.

Solar electricity generating systems are exempt from Connecticut sales and use tax. Your installer files CERT-140 to apply it.

Connecticut General Statutes §12-81(57) exempts Class I renewable systems serving private residential use, installed on or after October 1, 2007 and sized not to exceed the site's load. Filing practice varies by municipality — confirm with your town assessor whether an application is required.