Connecticut Solar Incentives, Tax Credits & Rebates 2026
State-program snapshot: 2026-01 · Federal status reviewed: 2026-08-06Cost Context
An illustrative 16.6 kW system using the historical observed average cost in Connecticut is $66,898. New federal residential credit for a 2026 installation: $0. Modeled annual savings before financing: $5,693.
Federal Residential Credit Status
Residential Clean Energy Credit
Ended for new 2026 systems0% for property placed in service in 2026
IRS guidance states that the 30% credit applied to qualified residential clean-energy property installed from 2022 through December 31, 2025. It is not available for property placed in service after that date.
Eligibility
No new residential credit for a system first placed in service in 2026. A previously earned unused credit may be eligible for carryforward under IRS rules.
Primary source
IRS Residential Clean Energy Credit guidance ↗Connecticut State Program Snapshot
Residential Solar Investment Program (RSIP)
RebatePerformance-based incentive ~$0.05/kWh
Connecticut Green Bank's RSIP provides performance-based incentives for residential solar installations.
Net Metering
Net MeteringFull retail rate for systems under 25 kW
Residential systems under 25 kW receive full retail rate net metering credits.
State and utility programs can change between reviews. Confirm eligibility, funding and deadlines with the administering agency or utility before relying on this snapshot.
Tax Exemptions
property tax Exemption
100% property tax exemption for solar energy systems for the life of the system.
sales tax Exemption
Solar equipment is exempt from Connecticut's 6.35% sales tax.
Utility Programs
Eversource CT
- Net metering
- Energy efficiency rebates
- Battery storage programs
United Illuminating
- Net metering
- Clean energy programs
Highlights & Drawbacks
Highlights
- ✓Very high electricity rates maximize savings
- ✓RSIP performance incentive
- ✓Property and sales tax exemptions
- ✓Fast ~6 year payback
Drawbacks
- !Lower sun hours
- !Higher installation costs
- !Smaller market with fewer installer choices
State-program sources: DSIRE, state energy offices and utilities; snapshot dated 2026-01. Programs, funding and eligibility can change without notice. Federal residential status reviewed against IRS guidance on August 6, 2026.