Loading NuWatt Energy...
We use your location to provide localized solar offers and incentives.
We serve MA, NH, CT, RI, ME, VT, NJ, PA, and TX
Loading NuWatt Energy...
NuWatt designs, installs, and manages solar, battery, heat pump, and EV charger systems across 9 states. One company, one warranty, one point of contact.
Get a Free Quote
A Connecticut-specific checklist for comparing solar quotes. Know what to look for, what to question, and what should send you running the other direction.
5
Critical Checks
$0 ITC
25D Expired
3+ Quotes
Recommended
Getting a solar quote in Connecticut is easy. Getting a good solar quote — and knowing whether it is actually good — takes work. The solar industry in CT has unique characteristics that make generic quote-comparison advice incomplete: the RRES netting tariff with its new Solar Energy Adjustment, Smart-E Loan financing through CT Green Bank, and the Eversource vs United Illuminating rate difference all affect your bottom line.
We created this checklist specifically for Connecticut homeowners comparing solar quotes in 2026. Every item is actionable and CT-specific. Print it, bring it to your consultations, and do not sign anything until every box is checked.
Biggest Red Flag in 2026
Any company advertising a "30% federal tax credit" for homeowner solar purchases is either uninformed or deliberately misleading. Section 25D expired December 31, 2025. The $0 federal credit is the single biggest change affecting CT solar economics. If a quote includes ITC savings, walk away immediately.
Compare apples to apples across every quote
Price per watt ($/W) is calculated by dividing the total system cost by the system size in watts. A 10,000W (10 kW) system at $29,000 = $2.90/W. This is the ONLY metric that lets you compare quotes from different companies, because it normalizes for system size differences.
Connecticut average in 2026 is $2.60–$3.10/W depending on town. Coastal Fairfield County and Greenwich run $3.05–$3.20/W. Inland towns like Meriden and Waterbury are often $2.78–$2.85/W. If your quote is more than $0.30/W above these ranges, ask why.
Not all hardware is created equal
The panel brand determines your production guarantee for 25 years. The inverter determines real-time monitoring and shade management. The installer's workmanship warranty covers roof penetrations and wiring — arguably the most important warranty because manufacturer warranties do not cover installation defects.
For CT installations, cold-climate performance matters. Look for panels tested to IEC 61215 with heavy snow load ratings (5400 Pa+). Microinverters (Enphase IQ8+) handle CT's partial shading from trees better than string inverters. If your quote includes a battery, check if it qualifies for the CT ESS incentive ($250–$600/kWh).
CT has unique financing through CT Green Bank
A $30,000 solar loan at 6.99% APR over 10 years costs ~$11,400 in total interest, making the effective system cost ~$41,400. At 7.99% over 15 years, total interest is ~$20,200 (effective cost ~$50,200). Cash purchase at $30,000 has the fastest payback. Always calculate the total cost of ownership including interest.
The CT Green Bank Smart-E Loan offers 6.99% APR for 5-10 year terms and 7.99% for 12-15 year terms, up to $50,000. The 0.99% rate is ONLY for heat pump projects — NOT solar. Up to 25% of the loan can cover non-energy improvements like roof repairs. Compare Smart-E to traditional home equity loans (currently 7-9% APR) and solar-specific loans from Mosaic, Dividend, or GoodLeap.
Your quote should specify which RRES option you will use
Production estimates should be based on your specific roof — orientation, tilt, shading, and local weather data. Reputable installers use satellite imagery (Aurora, Helioscope) to model your actual roof. Flat estimates of "X panels = Y kWh" without site analysis are unreliable. Ask for the shade report.
CT averages 1,175 kWh per kW per year. An 11 kW system should produce approximately 12,925 kWh/year. The RRES netting tariff (Option A) credits excess solar at the retail rate but charges $0.0402/kWh on ALL production for 2026 enrollees (~$472/year on an 11 kW system). The Buy-All tariff (Option B) pays $0.3289/kWh locked for 20 years but requires buying all grid power separately. Make sure your quote's savings calculation uses the correct tariff.
Know your rights before signing
A typical CT solar installation timeline: Week 1-2: site survey and engineering. Week 3-5: permitting. Week 6-8: installation (1-3 days on roof). Week 8-12: inspection and interconnection. Week 10-16: PTO from utility. Total: 10-16 weeks from contract to producing solar power. Delays are most common at the utility interconnection stage.
Connecticut law requires a 3-business-day cancellation period for door-to-door sales. The installer should handle all permits (local building permit + Eversource/UI interconnection application). CT has a relatively straightforward permitting process, but some towns (Greenwich, Westport) with historic districts add 2-4 weeks. Ask for the estimated timeline from signed contract to Permission to Operate (PTO).
| Item | Good Quote | Bad Quote |
|---|---|---|
| Price per Watt | $2.88/W clearly stated | "$89/month" (no total cost shown) |
| Federal Tax Credit | $0 (25D expired Dec 2025) | "30% tax credit = $9,834 savings" |
| Panel Brand | REC TwinPeak 460W, 25yr warranty | "Tier-1 panels, 400W" |
| Inverter | Enphase IQ8M microinverters | "Included" |
| Production Estimate | 12,925 kWh/yr (1,175 kWh/kW) | 15,000 kWh/yr (inflated) |
| RRES Tariff | Netting Option A, $0.0402 SEA factored | Not mentioned |
| Financing | Smart-E 6.99%, $0 dealer fee | "Low monthly payment" (hidden $3K dealer fee) |
| Workmanship Warranty | 15-year roof + electrical | "Standard warranty" |
| Timeline | 12 weeks contract to PTO | "ASAP" / no timeline given |
| Cancellation | 3-day right per CT CGS 42-135a | Waiver requested |
E-1 or E-2 electrical contractor license. Verify at ct.gov/dcp. No license = illegal installation.
CT Home Improvement Contractor registration required for any work over $200. Verify at ct.gov/dcp.
North American Board of Certified Energy Practitioners. Not required but indicates professional standards.
Must be an Energize CT approved contractor to access Smart-E Loan and ESS battery incentives.
The normal range for residential solar in Connecticut is $2.60–$3.20 per watt in 2026. Inland towns (Meriden, Waterbury, Bristol) tend to be at the lower end ($2.78–$2.90/W), while coastal Fairfield County towns (Greenwich, Westport, Norwalk) are at the upper end ($3.05–$3.20/W). A quote above $3.40/W should be questioned unless it includes battery storage or unusual roof conditions.
The Smart-E Loan through CT Green Bank offers 6.99–7.99% APR for solar, which is competitive but not always the cheapest option. Compare it to: home equity loans (7-9% APR, tax-deductible interest), credit union solar loans, and solar-specific lenders like Mosaic or GoodLeap. Cash purchase gives the fastest payback. The Smart-E advantage is $0 down, up to $50K, and the ability to include 25% non-energy improvements like roof repairs.
Get a minimum of 3 quotes from different CT solar installers. Prices can vary $0.20–$0.40/W between companies for the same system, which translates to $2,200–$4,400 on an 11 kW system. Ensure all quotes use comparable equipment (same panel tier, same inverter type) for a fair comparison. Use the price-per-watt metric to compare, not the monthly payment.
Most CT homeowners should choose the RRES Netting Tariff (Option A) because it powers your home first and credits excess at the retail rate. The Buy-All Tariff (Option B) at $0.3289/kWh locked for 20 years is primarily used for PPA/third-party owned systems. However, the netting tariff now includes a $0.0402/kWh Solar Energy Adjustment on all production for 2026 enrollees. Run both scenarios with your installer.
The Solar Energy Adjustment is a per-kWh charge applied to ALL solar production under the RRES netting tariff. For 2026 enrollees, it is $0.0402/kWh — an 8x increase from the prior $0.005/kWh. For a typical 11 kW system producing 12,925 kWh/year, this costs approximately $520/year. This should be clearly factored into any savings projection in your solar quote. Legacy RRES customers are grandfathered at the lower rate through 2039.
Yes — the Smart-E Loan allows up to 25% of the total loan amount to cover non-energy improvements such as roof repairs, new shingles, or attic insulation. This is a unique advantage of CT Green Bank financing. If your roof needs work before solar installation, this can bundle both costs into one low-interest loan rather than financing them separately.
A legitimate CT solar installer must have: E-1 or E-2 electrical contractor license from CT Department of Consumer Protection (DCP), CT Home Improvement Contractor (HIC) registration, general liability and workers compensation insurance, and ideally NABCEP certification. Verify licenses at ct.gov/dcp. For rebate eligibility, the installer should be on the Energize CT network.