Connecticut Solar Incentives in 2026: Everything Homeowners Need to Know

Connecticut homeowners have more financial incentives to go solar in 2026 than ever before. Between federal tax credits, state programs, and one of the highest electricity rates in the country, the math on solar in Connecticut is compelling — if you know what programs exist and how to stack them.

1. Federal Solar Investment Tax Credit (ITC) — 30%

The federal ITC gives you a 30% tax credit on your total solar installation cost.

• How it works: If your system costs $25,000, you get a $7,500 credit against your federal taxes
• Who qualifies: Homeowners who own (not lease) their system
• When it expires: 30% rate locked through 2032, then steps down
• Important: This is a tax credit, not a deduction — it reduces your tax bill dollar-for-dollar

2. Connecticut RRES Program — 20-Year Bill Credits

The Residential Renewable Energy Solutions (RRES) program is Connecticut's main solar incentive and replaced the older net metering program.

Under RRES, you earn bill credits for excess energy your panels generate, locked in at a set rate for 20 years. Both Eversource and United Illuminating participate. This long-term compensation structure is what makes CT solar ROI so strong — you're locking in a guaranteed credit rate for two decades.

3. Connecticut Property Tax Exemption

Solar systems in Connecticut are 100% exempt from property tax assessment. A solar installation can add $15,000–$25,000 to your home's value — and you pay zero additional property tax on that increase.

4. Connecticut Sales Tax Exemption

Solar equipment in Connecticut is exempt from the 6.35% state sales tax. On a $25,000 system, that's approximately $1,587 in immediate savings.

Stacking Your Incentives: A Real Example

With CT electricity at $0.27–$0.29/kWh — among the highest in the US — that system typically pays back in 7–9 years, then generates pure savings for 15+ more years.

Why CT Electricity Rates Make Solar Even Better

Connecticut has the second-highest residential electricity rates in the continental US. The average CT homeowner pays 23–29 cents per kWh, versus the national average of ~16 cents. Every kWh your panels generate is worth significantly more here than in most other states.

If your monthly electric bill is over $150, you're an ideal solar candidate in Connecticut.