The 5 best solar installers in Connecticut
Trinity Solar National
Why listed: 30+ years of experience, 100,000+ Northeast installations. NABCEP-certified crews; in-house roof leak warranty important for CT's freeze-thaw climate.
Earthlight Technologies Local
Why listed: Locally-owned CT residential installer with strong customer service track record and statewide coverage.
Sunrun National
Why listed: Largest U.S. residential solar provider. Lease and PPA-focused with commercial ITC pass-through.
SunPower (via dealers) National
Why listed: Premium Maxeon panels with 25-year complete-system warranty. Strong fit for CT's high electricity rates.
Aegis Solar Energy Local
Why listed: CT-based residential and commercial solar installer with strong shoreline and statewide presence.
Connecticut solar economics in 2026
| Metric | Connecticut average |
|---|---|
| Average residential rate | $0.27–$0.32 / kWh |
| Typical 8 kW system cost (cash) | $22,000–$28,000 before incentives |
| Average $/W | $2.85–3.50 |
| Average annual production (kWh per kW) | ~1,150–1,300 kWh/kW/year |
| Net metering structure | Net metering and tariff-based renewable energy program |
| Average cash payback | 9–11 years |
For full state-by-state cost comparison see solar cost by state.
Connecticut incentives and rebates
- Residential Solar Investment Program (RSIP): CT Green Bank historically administered upfront incentives; verify current program status.
- Property tax exemption: Added home value from solar exempt from property tax.
- Sales tax exemption: Solar PV equipment is sales-tax-exempt.
- Federal commercial ITC: Lease and PPA structures benefit from the commercial ITC pass-through. See federal tax credit guide.
What to verify before signing in Connecticut
- Contractor license: Verify with your state contractor licensing authority before signing.
- NABCEP certification: Most reputable installers carry NABCEP-certified installers on staff. Ask which crew member holds the certification.
- Insurance: General liability + workers comp + roofer's insurance separate from electrical insurance.
- References from your county: Permitting and inspection requirements vary. Ask for 2–3 references from your specific county.
- Get at least three bids: Solar bids vary by 20–35% on the same scope of work. See how to compare solar bids.
Got bids from Connecticut installers? Compare them properly.
Upload up to four solar proposals from any Connecticut installer. The analyzer compares $/W, production estimates, equipment, and financing structure — and tells you which one to sign.
Analyze My Bids →Frequently asked questions about Connecticut solar
Does solar make sense in Connecticut?
Yes for most homeowners with a $150+ monthly electric bill, an unshaded roof, and 8+ years of expected ownership. Connecticut's specific economics are summarized in the table above.
How much does a typical Connecticut solar install cost in 2026?
$22,000–$28,000 for an 8 kW system before incentives. Effective net cost depends on your state and utility incentives.
Should I get more than three bids?
Yes — three is a minimum. Four or five is better. Solar bids vary by 20–35% on the same scope of work. See how to compare solar bids.
Are there other reputable Connecticut solar installers besides these?
Many. The list above represents installers with strong public profiles in Connecticut; reputable installers exist beyond it. Get bids from a mix and compare them objectively rather than relying on any one list.