Solar in Connecticut: is it worth it in 2026?
Connecticut is one of the best places in the country to own solar. Three things decide that: electricity here is among the most expensive in the country (5th of 51), it gets less sun than most states (43rd of 51), and exported power earns full retail credit. Of the 51 states and DC, Connecticut has the 4th-fastest payback for a typical home.
The average home here pays about $206 a month for 704 kWh. A 6 kW system sized for that home would knock about $2,066 off the first year's bills, 83% of the total.
Checked November 12, 2026
What makes solar pay off in Connecticut
- Size the system to cover your yearly use. With full net metering, power you export is worth as much as power you use, so timing matters less than in most states.
- High electricity prices do the heavy lifting. At 29.3¢ per kWh, even a modest system saves real money, but the price still matters. At $3.34 per watt, the high end of what companies quote, payback for a typical system here stretches to 9 years.
Payback by system size
An average Connecticut home uses about 8,448 kWh a year. Here's how systems sized to cover part or all of that work out, bought with cash at $2.57 per watt:
| Covers | Size | Price | Makes a year | Payback | 25-year savings |
|---|---|---|---|---|---|
| 53% | 3.5 kW | $8,995 | 4,519 kWh | 8 years | $26,922 |
| 76% | 5 kW | $12,850 | 6,455 kWh | 8 years | $39,584 |
| 99% | 6.5 kW | $16,705 | 8,392 kWh | 8 years | $52,246 |
| 122% | 8 kW | $20,560 | 10,328 kWh | 8 years | $56,839 |
The 3.5 kW system pays back fastest, but the 8 kW system saves the most over 25 years. Assumes exported power earns about 85% of the retail rate, prices rise 2.5% a year and one inverter replacement.
How Connecticut credits power you send to the grid
Full credit (net metering)
Retail credits with a Solar Energy Adjustment of about 4 cents per kWh for systems connected in 2026 (roughly 15% less). A replacement program must be finalized by April 2028.
Coming up: Replacement program due by April 2028. Systems connected before a change are often kept on the old rules for years; ask your utility.
By utility
- Eversource (Connecticut): Retail credits with a Solar Energy Adjustment of about 4 cents per kWh for systems connected in 2026 (roughly 15% less). A replacement program must be finalized by April 2028.
Before you sign in Connecticut
Check the license. Look the company up with the Connecticut Department of Consumer Protection (eLicense), by its legal name or license number, and ask for the electrician's license number too.
Solar sales consumer protections (2026):
- Sellers must give you a state-published consumer brochure at the point of sale.
- Door-to-door salespeople must carry ID.
- Cold door-knocking is limited to 9 a.m. to 8 p.m. (towns may be stricter).
In every state, the FTC Cooling-Off Rule lets you cancel a contract signed at your home until midnight of the third business day.
How to choose a solar company · Contract checklist · Before you sign
Connecticut compared with its neighbors
| State | Electricity | kWh per kW | Typical payback | Exported power |
|---|---|---|---|---|
| Connecticut | 29.3¢ | 1,291 | 8 years | Full credit (net metering) |
| New York | 26.4¢ | 1,291 | 8 years | Full credit (net metering) |
| Massachusetts | 30.4¢ | 1,302 | 7 years | Full credit (net metering) |
| Rhode Island | 29.5¢ | 1,294 | 8 years | Reduced credit (net billing) |
Questions about solar in Connecticut
How long does solar take to pay for itself in Connecticut?
About 8 years for a typical 6 kW system bought with cash at the 2026 median price of $2.57 per watt, with no federal tax credit and one inverter replacement. A bigger or smaller system, a different price, or your own usage will change that; the table above shows other sizes.
Does Connecticut have net metering?
Yes. Retail credits with a Solar Energy Adjustment of about 4 cents per kWh for systems connected in 2026 (roughly 15% less). A replacement program must be finalized by April 2028.
Is there a solar tax credit in Connecticut in 2026?
Not from the federal government for buyers: the 30% homeowner credit ended for systems installed after December 31, 2025. For a typical 6 kW system in Connecticut, that credit was worth about $4,626 and brought payback down to 6 years, instead of 8 years now. Leasing companies can still claim a business credit, so ask for a lease or PPA price too. Your state energy office lists any state rebates.
Is a solar battery worth it in Connecticut?
On bill savings alone, not quite: a 13.5 kWh battery at about $15,650 would move about 3,548 kWh of solar power a year from the grid to your evenings in a typical Connecticut home, adding about $894 of savings over 15 years. That doesn't cover its price, so the system's payback goes from 8 years to 14 years; the rest is paying for backup during outages. Time-of-use rates, battery rebates and utility payments for sharing your battery can tip it; try your numbers in the payback calculator.
Is plug-in solar legal in Connecticut?
Yes, under HB 5340, up to 1,200 watts, one kit per meter. Unused power may be billed as usage unless your meter supports net metering.
How do I check a solar company's license in Connecticut?
Look the company up with the Connecticut Department of Consumer Protection (eLicense) (elicense.ct.gov) by its legal name or license number, and ask for the electrician's license too.
More guides: What changed for solar in 2026 · Lease or buy? · Plug-in solar · Is my solar system working?
Sources: U.S. Energy Information Administration (EIA), final 2025 data: Annual State Historical Spreadsheets (Form EIA-861, released October 7, 2026) and Electric Power Annual (October 21, 2026); NREL PVWatts (National Solar Radiation Database), statewide averages; SolarReviews: Net metering in 2026; Aurora Solar: consumer protection developments; Solar.com: Plug-in solar, the 2026 guide; EnergySage: median quoted price, first half of 2026.