CT incentive guide
Connecticut solar incentives in 2026
Last updated · every CT program below is verifiable against the sources at the foot of this page.
The most valuable solar incentive in Connecticut right now is Residential Renewable Energy Solutions tariff. Overall, the state's incentive stack rates as moderate compared with the rest of the country.
The federal credit is gone — start here
The 30% federal residential clean energy credit (Section 25D) ended for systems installed after December 31, 2025. If you are buying a system in Connecticut this year, there is no federal credit. That is a roughly $8,640 swing on an $28,800 system compared with 2025 pricing, and it is why state programs matter more now than they did a year ago.
What Connecticut offers at a glance
| Incentive | Available? | Details |
|---|---|---|
| State income tax credit | No | — |
| Rebate or performance payment | Yes | Energy Storage Solutions battery incentive |
| SREC market | No | — |
| Sales tax exemption | Yes | Qualifying solar equipment is exempt from state sales tax. |
| Property tax exemption | Yes | The value solar adds to the home is excluded from property tax assessment. |
| Federal tax credit | No | Section 25D ended for systems installed after December 31, 2025. |
Reviewed September 2026. Incentive programs change frequently and several are funding-capped — verify current status with the administering agency or DSIRE before relying on any figure.
Connecticut solar tax credit
There is no Connecticut solar tax credit in 2026, and no federal one either — Section 25D ended for systems installed after December 31, 2025. What Connecticut does offer on the tax side is sales and property tax exemptions, covered below.
Connecticut solar rebates and grants
Energy Storage Solutions battery incentive. Rebate and grant programs are funding-limited and have opened and closed mid-year before, so confirm the current round is open before counting on it.
Connecticut offers the Energy Storage Solutions battery incentive and sales/property tax exemptions. The structured RRES tariff itself is the main state-level support.
Net metering and export rates in Connecticut
Connecticut’s Residential Renewable Energy Solutions program lets homeowners choose a netting tariff (similar to net metering) or a buy-all/sell-all tariff with fixed compensation, both administered by Eversource and United Illuminating.
Compare this with net metering in every other state.
Export rules deserve to be read as an incentive. In a retail net metering state, every exported kilowatt-hour is worth the full retail rate; under net billing or avoided-cost compensation, the same kilowatt-hour can be worth a third of that. For a Connecticut home at an assumed $0.29/kWh, that difference compounds across a 25-year system life.
What this means for your numbers
A typical 8 kW system in Connecticut costs roughly $22,400–$28,800 installed before incentives, producing about 9,760 kWh a year and saving around $2,332 in year one — a simple payback near 10–12 years with no incentives applied. Anything in the table above shortens that.
Frequently asked questions
What are Connecticut solar tax credits worth in 2026?
Connecticut offers no residential solar income tax credit in 2026, and the 30% federal credit ended for systems installed after December 31, 2025. What remains on the tax side is sales and property tax exemptions, which lower cost indirectly rather than paying you back.
Does Connecticut have solar rebates?
Yes. Energy Storage Solutions battery incentive. Rebate programs in CT are funding-limited and have historically opened and closed mid-year, so confirm the current round is still accepting applications before you count the money.
Is there a Connecticut solar property tax exemption?
Yes. Connecticut excludes the value solar adds to a home from property tax assessment, so a system that raises your home's value does not raise your annual tax bill. Connecticut also exempts qualifying solar equipment from state sales tax, which comes straight off the installed price.
What solar incentives are available in Connecticut in 2026?
Connecticut offers the Energy Storage Solutions battery incentive and sales/property tax exemptions. The structured RRES tariff itself is the main state-level support. Because the federal Section 25D credit ended for systems installed after December 31, 2025, these state, local and utility programs are now the entire incentive picture for a purchased system.
Is there still a 30% federal solar tax credit in Connecticut?
No. The 30% federal residential clean energy credit (Section 25D) ended for systems installed after December 31, 2025 under the One Big Beautiful Bill Act. Any quote or website still applying 30% to a 2026 purchased installation is out of date. Leased and PPA systems can still benefit indirectly, because the third party that owns the system may claim the commercial 48E credit through 2027 and pass some of the value through in pricing.
Does Connecticut have net metering?
Connecticut’s Residential Renewable Energy Solutions program lets homeowners choose a netting tariff (similar to net metering) or a buy-all/sell-all tariff with fixed compensation, both administered by Eversource and United Illuminating. Export rules are effectively an incentive — often the largest one — because they set what every kilowatt-hour you do not use on site is worth.
How much do incentives change the cost of solar in Connecticut?
Before incentives, a typical 8 kW system in Connecticut runs roughly $22,400–$28,800. Energy Storage Solutions battery incentive — the value depends on current funding. See our full Connecticut cost breakdown for payback math.
Verify before you rely on any of this
Incentive programs open, close, deplete their funding and change their caps — often mid-year. This page is a starting point reviewed September 2026, not tax advice. Confirm with: