Best Solar Companies in Connecticut
The solar adoption rate in Connecticut is hard to miss, with over 87,000 households now powering their homes with rooftop solar panels. Solar panels now generate more than 4.37% of Connecticut’s electricity, helping offset power bills and reduce carbon footprints.
All this pushes the state toward its 2025 renewable energy goals. Moreover, as options proliferate, finding a reliable installer matters more than ever. In this guide, you will discover the top solar companies in Connecticut driving the clean energy revolution. See how homeowners across the state are making smarter, greener choices, one rooftop at a time.
15+ Best Solar Installers in Connecticut: Our Top Picks for 2026
Connecticut has a long list of solar service contractors. Here are some of the top companies:
1. SolarShip Corp
A local, full-scope solar installer in CT that installs PV and fulfills multiple requirements (roof replacement, tree work, service-line/electrical upgrades). Tier-1 hardware, Enphase-class electronics, and whole-home backup with Tesla Powerwall, plus $0-down financing options.
- 25-year warranty. The Learning Center explains standard product (10–25 years) and performance (25 years) coverage.
- Black-on-black monocrystalline modules, Enphase IQ8-class microinverters, and Unirac anti-leak mounting.
- Offers multiple battery brands, including the Tesla Powerwall.
- Customer install examples include adding a Tesla charger alongside solar.
SolarShip Corp provides explanations of their warranties, PPAs, supported battery types, and contract types. They are a suitable option as a solar contractor that offers solar + guided installs.
2. SunQuest Solar
This is a service-first solar company in CT. They don’t sell new PV systems, but they maintain, repair, upgrade, remove/reinstall, and clean existing arrays. They also provide EV charger upgrades, inverter replacements, and even coordinate roof replacements with partner roofers.
If your previous installer went out of business or your production has dropped, they position themselves as the “fix and optimize” crew for CT homeowners.
3. Mystic Solar, Inc.
A solar company in CT that pairs residential PV installations with battery storage and roofing. They aim to optimize production with Enphase hardware + app-based monitoring.
- Helps CT homeowners navigate Groton Utilities rebates and note PPA limits for municipal-utility customers (ownership/loan only).
- 25-year warranty on equipment used.
- Offers solar battery storage.
- Explains cash/loan/lease/PPA structures.
The solar installation in Connecticut offered by Mystic Solar is backed by Enphase-centric products, ensuring system reliability for homeowners.
4. Solara Solar
A solar installer in CT, known for a hardware lineup that sticks to proven brands and a powerful warranty on parts, labor, and craftsmanship. Their recent projects feature Enphase IQ8 microinverters and FranklinWH (15-kW) batteries in the field.
- Designs ballasted flat-roof and ground-mount systems.
- 25-year whole-system warranty and 25-year workmanship warranty.
- Lists REC, Qcells, and Hyundai HD panels.
- Includes ballasted flat-roof arrays and ground-mounts.
Homeowners can pair solar-plus-storage with CT’s Energy Storage Solutions rebate program (residential upfront incentive capped at $16,000 per project). They serve all of Connecticut and nearby Northeast states, and even power their own HQ with an on-site hydro setup.
5. Venture Solar
A Northeast-focused solar installer in CT with a Southington operations hub that handles home PV installations and integrates batteries, plus roofing and repairs/maintenance using one team.
- 25-year guarantee on system, labor, and workmanship. 10-year workmanship and 25-year parts/power-output via manufacturers.
- Provides commercial EV charging solutions through Enel X Way.
- Home batteries from Tesla or Enphase.
Venture Solar also offers solar financing and leasing options with multiple pay-over-time options, and their “Cost of Solar” and pricing pages outline incentives, netting, and payment paths.
6. Prime Energy Solar
Prime Energy Solar positions itself as a one-stop shop for solar design and installation, with in-house roofing, tree removal, HVAC, and ongoing maintenance. They also offer multiple service add-ons (roof replacement, trimming, repairs/maintenance).
- 25-year workmanship warranty plus a 30-year production guarantee.
- Panel brands include Qcells, Canadian Solar, & Silfab, and pair them with SolarEdge, APsystems, and GoodWe/Canadian Solar inverters.
- Promotes solar + EV charging solutions.
- Qcells modules: typically 25-yr product + 25-yr performance
- SolarEdge: optimizers 25 yrs; inverters 12 yrs (extendable)
- Silfab modules: many lines carry 25-yr product + 30-yr performance.
Strong “all-under-one-roof” value prop with unusually long stated workmanship/production guarantees. Ensure all paperwork is up-to-date, and that you receive the equipment make/model warranty PDFs and a financing term sheet in the proposal to lock the specifics.
7. PurePoint Energy
A commercial-first CT solar company with a deep focus on business, agricultural, nonprofit, and multifamily projects. They are SunPower-certified (Elite/Commercial) and a certified installer for Tesla Powerwall and Fortress Power for storage.
- 5-year workmanship (labor & repair) warranty.
- Dedicated “Solar Squad” handles O&M, reroofing, inspections, and cleaning.
- SunPower is the named panel partner.
- Lists Sungage Financial + CT Green Bank as associated financiers.
If you need canopy/parking-lot solar, they design carports that can integrate EV chargers. They also have strong expertise in agriculture projects with CT/USDA incentive know-how.
8. Green Power Energy
A high-capacity solar installer in CT with a fully built stack for CT homeowners. Offers design/installation, roof replacements, main-panel upgrades, battery storage, and Level-2 EV charging, backed by long-form warranties and multiple financing options (loan or PPA).
- 25-year all labor and 25-year all roof penetrations; A 25-year on Enphase IQ8MC microinverters and 25-year on Qcells/REC panels.
- Qcells and REC modules, Enphase power electronics, racking from IronRidge, storage/backup via Tesla and Generac, & Lumin for load control/energy management.
- Tesla Powerwall certified battery installer with CT service.
- Mosaic, Dividend, and Sungage are partner lenders.
Green Power Energy has an In-house team for residential roofing with “one-team, one-timeline” coordination with guidance to re-roof if the roof is ~15+ years old before PV.
9. ISP Solar Energy Company (iSP / Ion Solar Pros)
iSP is a licensed, one-crew solar company in CT that installs solar, batteries, EV charging, and even manages roof replacements. Their “PowerHouse” packages pair all-black panels with top-of-the-line microinverters and clean, low-profile racking.
- iSP offers third-party Solar Insure protection (30-year on select systems).
- Tesla Powerwall 3 certified installer.
- Monocrystalline panels; Q.ANTUM NEO cell tech option; IQ8M microinverters; IronRidge/Aire racking; Wi-Fi-enabled PowerHouse monitoring.
- Tesla Powerwall 3 (13.5 kWh, built-in 11.5 kW inverter, whole-home backup) plus PowerHouse LFP storage (5/10/15 kWh) with 15-year warranty.
- PowerHouse EV chargers.
Get roof-to-battery solutions with Tesla certification and optional protection. Strong for homeowners who want tight integration and long-horizon coverage.
10. Shoreline Solar
Shoreline Solar positions itself as a price-competitive solar installer in CT that relies on Tier-1 hardware, microinverters, and backup choices, with multiple financing options.
- 30-year workmanship warranty and 12-year roof-penetration coverage, plus 25-year coverage on panels and microinverters. Also, a 25-year guarantee on plans.
- Uses Enphase microinverters/Tesla batteries, and SunPower is a panel supplier.
- Supports Q.Home storage.
- In-house roof replacement/repair plus windows, HVAC, and siding.
They have a “We beat any quote” offer for any solar installation in CT, with guidance on vetting installers and third-party-backed warranties (SolarInsure/Omnidian).
11. SAVKAT
A CT solar installer that bundles roofing, electrical upgrades, trenching, structural reinforcement, and even tree removal, so you don’t have to manage multiple contractors.
- Manufacturer 25-year product warranties, 10-year roof-penetration warranty & workmanship covered.
- Tesla-certified for Powerwall.
- Installs JuiceBox, Tesla, and Wallbox Pulsar Plus. Home chargers up to 11.5 kW (48A).
Certified solar techs take down the array, master roofers replace the asphalt shingle roof, then the team reinstalls and tests your PV. This way, they maintain manufacturer warranties, handle insurance paperwork, and aim for a 3–5-day turnaround for single-project warranties.
12. Home Solar CT
Home Solar CT operates as a referral service that matches you with licensed, insured local installers across Connecticut, rather than installing itself. The site emphasizes no-cost or low-upfront solar programs and offers homeowners quote matching via partner installers.
13. Everlast Energy & Roofing
A license-holding solar + roofing contractor that serves solar installation in CT with new PV installs, solar removal & reinstall (R&R) for reroofing, battery backups, EV chargers, tree work, ground-mounts, and complete roof replacement.
- 25-year workmanship, 10-year roof-penetration, 25–30-year manufacturer (panels/inverters), 25-year production, and lifetime monitoring.
- Offers battery storage for residential projects, is CT Green Bank–listed for home battery work, and installs EV charging stations in homes.
- Flexible / $0-down financing options.
Unlike most CT solar companies that hand you an app, Everlast explicitly includes lifetime system monitoring for solar customers, ensuring the utmost reliability of services.
14. Earthlight Technologies
They are a family-owned EPC with a crew that includes designers, electricians, and a dedicated service department. Earthlight stands out for pairing premium hardware with deep Connecticut financing know-how (CT Green Bank programs) and a full roofing arm for solar-ready reroofs.
- 12-year workmanship warranty.
- Batteries: Tesla Powerwall and FranklinWH aPower.
- Panel/inverter: Silfab modules (25-year product/performance), Enphase microinverters (25-year), with historic SunPower/Maxeon projects.
- Residential/commercial EV charging installs, incentive paperwork, design, permitting, and ongoing service are handled.
Earthlight Roofing offers asphalt/metal/rubber roofs and coordinates reroofing + PV as one project, with a promise to save more on your electricity bills.
15. Trinity Solar
A large East Coast solar company in CT that handles solar, batteries, roofing, and EV charging under one contract. Trinity publishes transparent warranties for solar projects and is a Tesla Powerwall-certified installer, supporting lease/PPA/loan arrangements with financiers.
- Workmanship & roof coverage: 10-year labor, 5-year roof penetrations, 25-year panels, and up to 12-year inverters. Also, adds a 25-year roof warranty.
- Lists IKO Dynasty shingles. Uses Tier-1 panels with 25-year manufacturer product/performance coverage.
- A 25-year parts & labor guarantee on the overall system.
Trinity runs an in-house roofing division (IKO Dynasty shingles) with a 25-year roof warranty that stays intact even after Trinity removes and reinstalls your solar panels for future roof work.
16. CellSun Solar
A CT-focused, roof-to-battery solar installer that handles complete residential work and notes bold warranty claims. CellSun installs EV chargers and supports orphaned systems (troubleshooting, expansions, inverter swaps, and adding storage).
- Lists 30/40-year labor coverage on “all components,” 10-year roof-penetration, and 30/40-year panel manufacturer coverage (40 with Maxeon).
- Installs Level-2 EVSE from ChargePoint and Emporia.
- Dedicated remove-and-replace process to protect warranties, perform professional roofing, then reinstall and recommission.
A native installer with labor/roof-penetration support, EV charging, financing, and R&R/roofing under one team that can service or expand an existing array as easily as they can build new.
17. Sunlight Solar Energy
A long-operating regional solar system installer that offers PV design/permits, EV-charger installs, maintenance, and battery add-ons.
- Guarantees include a 10-year workmanship warranty and a 5-year production guarantee (within 10% of estimated output).
- Associated solar suppliers include Enphase, SMA, SolarEdge, Qcells, Solaria, plus racking from Unirac/IronRidge.
Solid published warranties and broad gear familiarity. Just confirm the current CT office status, battery brand, and written warranty schedule before you proceed.
18. Premier Improvements Solar
A veteran-owned CT solar installer pairing installations with new roofs and vibrant packages.
- 40-year panel, 25-year performance, 25-year product & labor, 10-year roof warranties.
- Equipment: Silfab, Maxeon, REC, Qcells, Enphase, SolarEdge, GoodWe.
- Battery installs include Tesla Powerwall and FranklinWH.
- Scopes each project with rooftop and ground-mount PV, storage, and reroof combos.
A strong pick if you want one contractor for roof, premium PV, battery, and extended warranties, with Smart-E financing to keep cash flow predictable.
19. EcoSmart Home Services
An efficient solar panel installation contractor that also installs solar, batteries, and EV chargers. EcoSmart stands out for a guarantee covering the entire system. They standardize on Enphase microinverters and state a standard coverage for panels/microinverters. They also participate in Eversource’s ConnectedSolutions battery program.
- 25-year workmanship on the full PV install (hardware + roof attachments + electrical).
- 25-year coverage on panels & microinverters.
- Battery installs tied to ConnectedSolutions (potential seasonal performance payouts).
- Handles Level-2 EVSE, panel/service upgrades, generators, and troubleshooting.
EcoSmart can repair/replace the roof first and then install solar for cleaner warranties with a rare workmanship umbrella that makes EcoSmart a preferred choice.
Shaping Connecticut’s Solar Future
Connecticut’s solar journey is marked by innovation, community buy-in, and impressive solar installation numbers, demonstrating how quickly the state is embracing a sustainable future. Choosing the right solar company brings peace of mind and lasting savings, but the ecosystem thrives when buyers, sellers, and installers are meaningfully connected.
If you are searching for deeper insight or want to explore top solar options, platforms like Solartiqo are changing the game. Solartiqo is a trusted B2B and B2C solar marketplace that bridges the gap between solar product suppliers, service providers, and end users through curated vendor listings, transparent service portfolios, and user-focused solutions.
