Connecticut Solar Incentives in 2026: What's Still Available

Solar incentives changed more in the past year than in the previous ten. If you're researching this in 2026, most of what you'll find online is out of date — including, unfortunately, the part about the famous 30% federal tax credit.

Here's the current, honest picture for Connecticut homeowners.

What happened to the federal solar tax credit?

The Section 25D residential credit — the 30% tax credit for homeowners who buy their own system — ended for systems installed after December 31, 2025. Congress cut it nearly a decade ahead of its original schedule, with no phase-down.

But that's not the whole story. A separate federal credit — Section 48E, the commercial clean-energy credit — still exists, and it applies to solar systems owned by a company rather than the homeowner. That's the mechanism behind leases and power purchase agreements (PPAs): the provider claims the credit and passes the savings through as a lower fixed rate.

Two dates matter for that pathway: projects generally must begin construction by July 4, 2026 to safe-harbor the credit, or be placed in service by the end of 2027. In other words — the third-party route still works in 2026, but its window is defined and closing. That's not sales pressure; it's the actual federal calendar.

What Connecticut still offers in 2026

The state-level picture is more stable, and it's better than most states':

1. The RRES program (20-year locked compensation). Connecticut's replacement for net metering pays you for the power you produce — either retail-rate bill credits under the Netting tariff or a fixed ~32.9¢/kWh under Buy-All — with terms locked for 20 years at enrollment. Full details in our net metering guide.

2. Sales tax exemption. Residential solar equipment and installation are exempt from Connecticut's 6.35% sales tax.

3. Property tax exemption. Solar raises home values, but Connecticut exempts the added value from local property taxes — your assessment doesn't go up because you added panels.

4. Battery storage incentives. The Energy Storage Solutions program pays upfront and performance incentives for home batteries enrolled with the utilities — worth evaluating if outage protection matters to you.

5. Financing programs. The Connecticut Green Bank's Smart-E loan program offers below-market, no-money-down financing for energy improvements including solar, through participating local lenders.

So what does "no more tax credit" actually mean for you?

It means how you go solar matters more than it used to:

• Buying with cash or a loan — still possible, but with no federal credit the payback math is materially different than what you read in pre-2026 articles. Insist on current numbers.
• Lease / PPA — the provider captures the 48E federal credit and you get a fixed monthly rate, typically with the provider on the hook for maintenance and monitoring for the length of the agreement. For many families in 2026, this is the route where the math still clearly works — the money you already send Eversource each month gets redirected into your own system instead.

Either way, the boring fundamentals decide the outcome: your roof, your usage, and your utility's rate trajectory. If the numbers don't work for your home, the answer should be "don't do it" — and any company that won't say that isn't doing math, it's doing sales.

Want to see how the whole system fits together before talking numbers with anyone? Start with our simple walkthrough — it explains your bill and how solar changes it in about 3 minutes.

The bottom line

• The 30% federal credit for homeowner-purchased systems ended December 31, 2025
• The lease/PPA pathway still carries the federal credit in 2026, on a defined timeline
• Connecticut still offers 20-year locked RRES compensation, sales and property tax exemptions, battery incentives, and Green Bank financing
• The math is home-specific — get current-year numbers, not 2024's blog posts