The Connecticut Residential Solar Investment Program (RSIP) provides an upfront per-watt incentive for qualifying residential solar installations in Connecticut. The program is administered by Eversource CT and United Illuminating on behalf of the CT Department of Energy and Environmental Protection (DEEP) and the Public Utilities Regulatory Authority (PURA).
How CT RSIP works:
- Incentive is paid per AC watt of solar installed
- Separate blocks are administered by Eversource CT and United Illuminating based on your utility territory
- Your installer submits the application on your behalf and deducts the incentive from your contract price
- You still claim the full pre-incentive system cost for the federal 30% ITC
- Block availability and incentive rates are updated periodically — current rates are available from your installer or CT DEEP
The RSIP stacks with the federal 30% ITC, CT's 15-year property tax exemption (CGS § 12-81(57)), the CT 6.35% sales tax exemption, net metering, and CT Green Bank Smart-E Loan financing. Connecticut's combined incentive package is one of the strongest in the Northeast.