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Solar panel cost and payback in Connecticut
Measured production, your actual utility's filed rates, and honest payback maths with no federal tax credit applied - because for a home bought today there is not one.
The Residential Clean Energy Credit was terminated for home purchases after 2025-12-31, so the $34,000 above is what a Connecticut household actually pays - not a headline price with a rebate quietly subtracted. A quote that still shows the credit is overstating your return by about that amount, which on these numbers is roughly 7 years of savings.
Rates run from $0.1267 to $0.159 per kWh depending on who serves you. Since your bill is the single biggest driver of solar payback, a statewide average would be badly wrong for many readers. Find your own answer with the calculator, which uses your specific utility.
What solar costs in Connecticut at different bills
Worked at 1256.5 kWh per kW per year and $0.1429 per kWh, the midpoints across the 2 metros below, at $3.40 per watt installed.
| Monthly bill | System | Cost | Year-1 saving | Payback | 25-year net |
|---|---|---|---|---|---|
| $120 | 8.0 kW | $27,277 | $1,199 | 18.5 yrs | +$12,526 |
| $200 | 10.0 kWroof limit; covers 75% | $34,000 | $1,495 | 18.5 yrs | +$15,614 |
| $300 | 10.0 kWroof limit; covers 50% | $34,000 | $1,495 | 18.5 yrs | +$15,614 |
Exported surplus is valued at zero throughout, so these are floors rather than best cases. Where fully covering the bill would need more panels than a roof holds, the row shows the largest system that actually fits and the share of your usage it covers - not the lifetime return on an array nobody can build. Your own bill and roof will move them - run your address.
Sunlight and rates by Connecticut metro
Straight from NREL PVWatts and the utility rate database, by named utility. This is why one statewide figure does not work.
| Metro | Utility | Production | Rate |
|---|---|---|---|
| Hartford | Connecticut Light & Power Co (The) | 1,250 kWh/kW | $0.1267 |
| New Haven | United Illuminating Co (The) | 1,263 kWh/kW | $0.159 |
What Connecticut pays you for surplus power
Net metering abolished, replaced by a tariff
Connecticut ended legacy net metering in January 2022. You now choose between two tariffs, both running 20 years, and the choice is not reversible.
The Residential Renewable Energy Solutions programme replaced both net metering and the old residential rebate. Under Netting you use your own power first and receive on-bill credits for exports, with the utility buying your renewable certificates. Under Buy-All you export everything your system makes at a rate set by PURA and keep buying your household power as normal. Rates are set annually to target a 9 to 11 percent return, and the commitment runs 20 years from approval to operate. Any Connecticut advice that talks about net metering is describing a programme that no longer exists.
Checked 2026-08-21 against Connecticut PURA, Residential Renewable Energy Solutions. Export rules are being rewritten across the country, so verify before you sign. Current incentive detail for Connecticut is maintained at DSIRE, which we link to rather than copy precisely because it changes.
Is solar worth it in Connecticut?
Worth doing, with realistic expectations. A roof can carry enough for 75% of what a $200-a-month household in Connecticut uses, not the lot. Covering it entirely would take 13.4 kW of panels, which is more roof than most houses have. The 10.0 kW that does fit costs $34,000 and returns about $15,614 over 25 years, paying for itself in roughly 18.5 years. A smaller bill would be covered proportionally better, so this is a case where efficiency work pays twice.
Rates across Connecticut differ by 25%, so which utility serves you changes this answer more than anything else on the page. Run your ZIP code through the calculator for numbers worked from your own utility rather than a Connecticut midpoint. It asks for no email address and nobody will call you.
Connecticut solar questions
Connecticut got rid of net metering?
Yes. The Residential Renewable Energy Solutions programme replaced legacy net metering and the old residential rebate in January 2022. Any Connecticut guidance that still talks about net metering is describing something that no longer exists for new systems, which is a common error in solar content about this state.
Should I choose Netting or Buy-All?
Netting means you use your own power first and receive on-bill credits for what you export, with the utility buying your renewable certificates. Buy-All means you export everything your system produces at a rate set by PURA while continuing to buy your household power normally. Netting generally suits households that consume a lot during daylight; Buy-All can suit the opposite. The commitment runs 20 years, so it is worth modelling both with your installer.
How are the rates set?
PURA sets them annually using a model targeting a 9 to 11 percent return for system owners, alongside a statewide deployment target. That means the rate you lock in depends on the year you enrol, and it is fixed for the 20-year term from your approval to operate.