Aegis Solar Energy
- Office
- Branford, CT
- Licenses
- HIC.0622387, E-1 ELC.0123735-E1
- Warranty
- Lifetime production guarantee; no workmanship warranty published
More facts
- Founded
- 1989 (company says)
- Ways to pay
- None published
Solar Panels in Connecticut: Costs and Options
Connecticut homeowners typically install a 9.52 kW system, which costs about $26,656 in cash at $2.80 per watt. It pays for itself in about 7 to 11.2 years. Where you land depends on your utility, the payment plan you pick and how much sun your roof gets.
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Free for you. Solar providers pay us when you ask for quotes. How we make money
How much do solar panels cost in Connecticut?
At the September 2026 benchmark of $2.80 per watt. These are modeled cash prices, not quotes we collected.
| System size | Yearly output | Cash price |
|---|---|---|
| 5 kW | 6,470 kWh | $14,000 |
| 8 kW | 10,352 kWh | $22,400 |
| 9.52 kW (typical) | 12,319 kWh | $26,656 |
| 12 kW | 15,528 kWh | $33,600 |
How we got these numbers
- The typical Connecticut system in our Cost Index, 9.52 kW, calibrated from Berkeley Lab’s 2025 state median (9.54 kW across 13,220 systems). Size yours to your own use.
- Output uses about 1,294 kWh per kW a year (PVWatts, Bridgeport). Shade lowers it.
- A system you own gets no federal tax credit after December 31, 2025.
Which utility serves your home?
The name at the top of your electric bill decides which solar plan you can join and what each solar kWh is worth.
Eversource
25.62¢ per kWh
Rate 1 before credits: 14.04¢ delivery plus 11.58¢ supply, May 1, 2026 to April 30, 2027. Plus $9.62 a month.
Next: ask for Buy-All and Netting priced at this rate.
United Illuminating
United Illuminating (UI)
30.30¢ per kWh
Rate R before credits: 18.31¢ delivery plus 11.99¢ supply, from September 1, 2026. Plus $13.02 a month.
Next: ask for Buy-All and Netting priced at this rate.
A town-owned utility
Its own rules
Groton, Norwich and Wallingford run their own utilities. Buy-All and Netting do not apply. Groton’s SolarPlus pilot pays $1,000 per kW, up to $10,000 or 50% of the cost.
Next: get the credit terms from your utility in writing.
Standard Service or a third-party supplier?
Your utility always delivers the power. The supply part comes from its Standard Service or from a licensed supplier: see “Your Electric Supplier Is” on page 1 of your bill. Compare offers with the current Standard Service price on the Rate Board at EnergizeCT.com. Residential suppliers cannot charge sign-up or early termination fees or use teaser rates, and you can return to Standard Service at any time (Office of Consumer Counsel).
Until April 30, 2027, temporary public-benefit credits lower the billed rate to 23.61¢ at Eversource and 26.54¢ at UI. We use the rates before those credits because the solar plan runs 20 years. Per-kWh figures leave out fixed monthly charges. Supply rates reset every January 1 and July 1. The 27.99¢ statewide average is for comparing states only.
How do Netting and Buy-All work?
Eversource and UI customers pick one plan when they apply. It stays fixed for 20 years.
Buy-All 32.89¢ per kWh
- Your panels send every kWh to the utility.
- You earn 32.89¢ per kWh (2026 rate) as bill credits.
- You buy your home’s power at your normal rate.
Netting your rate minus 4.02¢
- Solar power you use lowers your bill right away.
- Extra power earns a credit at your full rate.
- You pay 4.02¢ on every kWh the panels make (2026 rate).
Plan and utility | Year-one value | Simple payback |
|---|---|---|
Buy-All, Eversource or UI | $4,052 | 7.1 years |
Netting, UI | $3,237 | 9.0 years |
Netting, Eversource | $2,661 | 11.2 years |
How we calculated this
- Year-one value: 12,319 kWh × 32.89¢ on Buy-All. On Netting, 12,319 kWh × your rate before the temporary credits minus 4.02¢: 21.60¢ at Eversource (25.62¢), 26.28¢ at UI (30.30¢).
- Payback: $26,656 ÷ (year-one value − $285.60 upkeep a year, which is $30 per kW and includes an inverter reserve). No financing, rate changes or panel aging.
- 40% of the power is used at home as it is made and 60% is sent out. On Netting, all of it earns your full rate because credits roll over.
- Buy-All is shown without a per-kWh production charge; we are confirming this against the PURA tariff table.
- Income-qualified homes and homes in distressed towns earn extra cents per kWh.
What incentives and financing options are available?
No rebate checks or tax credits in 2026. Connecticut helps through taxes, plan adders and battery payments.
0%Sales tax
No 6.35% sales tax on solar. Form CERT-140.
$0Property tax on the added value
File Form M-44 with your assessor by November 1.
+5.5¢Low-income adder
Per kWh on Buy-All (3.5¢ on Netting) at or below 60% of state median income. Distressed towns: +2.75¢ or +1.75¢.
$30/kWhBattery program
Off the price at install, then $300 per kW a year for 10 years.
Way to pay | Who owns the panels | Who gets RRES payments | Check before you sign |
|---|---|---|---|
Cash | You | You | No sales tax on the price |
Loan | You | You | Total financed vs. cash price; dealer fee |
Lease | The company | The company | Yearly increase; transfer or buyout if you sell |
PPA | The company | The company | Price per kWh; transfer or buyout if you sell |
Swipe the table sideways to see every column.
Is solar a good fit for your roof and plans?
- ShadeTrees cut output. Ask for a shade report for your own roof.
- Roof ageReplace an old roof first, or get the remove-and-reinstall cost in writing.
- Time in the homeCompare your planned stay with your quote’s payback.
- SizeUp to 5% above your highest 12 months of use, plus a planned EV or heat pump.
Compare Connecticut installers
Six companies with active Connecticut registrations, A to Z, not ranked. Facts from their own sites and the state registry, read October 12, 2026.
Earthlight Technologies
- Office
- Ellington, CT
- Licenses
- HIC.0636767; no company electrical license found
- Warranty
- 12-year workmanship, including roof penetrations
More facts
- Founded
- 2008 (company says)
- Ways to pay
- Cash, loan, lease, PPA
Green Power Energy
- Office
- Durham, CT (headquarters Annandale, NJ)
- Licenses
- HIC.0656622, E-1 ELC.0205319-E1
- Warranty
- 25 years of labor on Enphase systems; roof coverage not stated
More facts
- Founded
- 2009 (company says)
- Ways to pay
- Cash, loan, PPA
Momentum Solar
Buys leads from EcoGen- Office
- East Berlin, CT, per state registry (headquarters South Plainfield, NJ)
- Licenses
- HIC.0646323, E-1 ELC.0203702-E1
- Warranty
- Not confirmed: website could not be read
More facts
- Founded
- Not confirmed
- Ways to pay
- Cash, loan, lease, PPA (2025 website)
Trinity Solar
EcoGen Verified Installer- Office
- Cheshire, CT (headquarters Wall, NJ)
- Licenses
- HIC.0671385, E-1 ELC.0195559-E1
- Warranty
- 10 years labor and 5 years roof penetrations, for upfront purchases
More facts
- Solar since
- 2004 (company says)
- Ways to pay
- Cash, plus loan, lease or PPA through partners
Venture Solar (Venture Home)
Buys leads from EcoGen- Office
- Southington and Stamford, CT
- Licenses
- HIC.0650479, E-1 ELC.0200835-E1
- Warranty
- Workmanship warranty offered; terms not published
More facts
- Solar since
- 2014 (company says)
- Ways to pay
- Cash, loan, lease, PPA, prepaid
Momentum Solar and Venture Solar buy homeowner leads from EcoGen America. That does not change their facts or their place in this A to Z list. How we make money. What the Verified badge means.
What should your solar quote include?
- Both payment plansYear-one value on Buy-All and on Netting (after the 4.02¢ charge), and which plan they will file.
- Your real rateSavings at today’s rate with no increase, and separately at the increase they assume.
- Taxes done rightNo sales tax line, no 30% federal credit on a system you own, and who files Form M-44.
- License and datesLicenses you can check on the state eLicense site, and written dates for permit and utility approval.
Ready to compare quotes?
Ask each installer to price the same system on Buy-All and on Netting.
Start your Connecticut solar evaluationEcoGen America does not sell or install solar. When you request quotes, we pass your request to solar providers serving your area, and they pay us for the introduction. Providers can include installers, solar marketplaces and lead exchanges, and more than one may contact you. You never pay us. Privacy policy
Connecticut Solar FAQs
Can I still get the 30% federal tax credit?
No, not for a system you own that is placed in service after December 31, 2025. A third-party owner may still claim Section 48E on a leased or PPA system if construction began by July 4, 2026, or if the system is placed in service by December 31, 2027. Any benefit shows up in the contract price, not on the homeowner’s return.
What happens when the 20-year payment plan ends?
No one knows yet. State law keeps Buy-All and Netting open to new systems until December 31, 2028 at the latest, and PURA must decide on a successor program by December 1, 2027. Treat any years after the 20-year term in a quote as a guess.
Can a battery avoid the Netting charge?
No. For 2026 enrollees the 4.02¢ charge applies to every kWh the panels make, whether it goes to your home, a battery or the grid.
Does RRES apply with a town-owned utility?
No. RRES is for Eversource and UI customers. Ask your town utility for its solar credit terms in writing. The state sales and property tax exemptions still apply.
Do I need to file anything for the property tax exemption?
Yes. File Form M-44 with your town assessor on or before November 1 of the assessment year, or you lose the exemption for that year.
Solar companies by Connecticut city
Sources (15 documents, each with the date we read it)
- EcoGen Solar Cost Index, September 2026: Connecticut$2.80 per watt, 9.52 kW typical size (calibrated from Berkeley Lab’s 2025 median of 9.54 kW, 13,220 systems), 1,294 kWh per kW, 27.99¢ statewide average (EIA), utility setup fees, battery estimate.
- PURA Docket No. 25-08-02 decision, December 17, 2025 (Table 5)2026 Buy-All rate, Netting charge, adders and 20-year term. Read September 30, 2026.
- PURA: Residential Renewable Energy Solutions programEligibility, 25 kW cap and sizing rule. Read October 1, 2026.
- Connecticut Public Act 26-127RRES end date and successor deadline. Read September 30, 2026.
- Office of Consumer Counsel consumer alert, May 22, 2026Standard Service supply rates from July 1, 2026, and supplier rules. Read October 14, 2026.
- Eversource: Summary of Connecticut Electric Rates, updated May 1, 2026Rate 1 delivery charges, temporary credits and $9.62 customer charge, May 1, 2026 to April 30, 2027. Read October 14, 2026.
- United Illuminating: Residential Rate R (C.P.U.C.A. No. 2525)UI delivery charges, temporary credits and $13.02 fixed monthly charge, effective September 1, 2026. Read October 6, 2026.
- Eversource and UI: RRES Program Manual v2026.1RRES application fees ($163 Eversource, $200 UI) and UI meter fee ($348). Read October 14, 2026.
- Eversource: Connecticut Renewable Energy Solutions interconnectionsCurrent Form 2S meter fee ($230). Read October 14, 2026.
- Connecticut Department of Revenue Services: sales and use tax exemptionsForm CERT-140 for solar electricity generating systems. Read October 14, 2026.
- Connecticut Public Act 26-134Property tax exemption and the November 1 filing deadline. Read September 30, 2026.
- Energy Storage Solutions: home batteries2026 enrollment and performance payments. Read October 1, 2026.
- Groton Utilities: SolarPlus detailsRebate per kW and cap. Read September 30, 2026.
- IRS: Residential Clean Energy CreditNo credit for property placed in service after December 31, 2025. Read September 30, 2026.
- Connecticut eLicense registryInstaller license numbers and status. Read October 12, 2026.
Written by
Dean Mahmoud
CEO of EcoGen America. Since 2021 he has connected homeowners with residential solar installers in all 50 states.
About Dean
Checked by
Trevor Guilday
Founder of EcoGen America. He has worked in residential solar since 2016 and maintains the EcoGen Solar Cost Index.
About TrevorEditorial standardsCost Index methodologyVerified Installer methodology