Best Solar Companies in Vermont
Vermont is widely recognized for its commitment to clean energy and its ambitious goals to expand solar power. In 2025, the state continues pushing for renewable growth, with a new law expediting permits for residential solar systems up to 25 kW, slashing approval times from months to just 30 days and lowering costs for homeowners.
Local companies have adapted quickly to these policy changes, making it increasingly accessible for Vermonters to go solar. This blog highlights the most-reviewed solar companies in Vermont, outlining their services, installation approaches, and incentive programs.
Top 11 Solar Installers in Vermont
Below are some of the best solar installers serving residential and commercial property owners in Vermont with solar energy, and who also contribute to incentives and programs.
1. Green Mountain Solar
Green Mountain Solar stands out among Vermont solar installers for clear warranties and strong ongoing support. They handle battery storage and EV charger installations as add-ons for solar customers, offering a whole-home solution.
- Aligned with Green Mountain Power’s home battery programs (ESS/BYOD), which can materially reduce battery costs or offer lease options for customers in GMP territory.
- 12-year workmanship warranty and 25-year (typical) equipment warranties.
- Installs Tesla Powerwall, Enphase IQ Battery, and FranklinWH.
Clean upgrades to solar energy production, along with top-tier equipment, make Green Mountain Solar a good partner that also offers Vermont solar incentives.
2. SunCommon
SunCommon is a well-known choice among solar companies in Vermont if you are seeking a full solar experience plus a dedicated service team.
- Warranties: 25-year PV product and 10-year workmanship.
- Offers home energy storage (notably Tesla Powerwall) and helps customers enroll in GMP’s BYOD/Powerwall programs.
- Provided inverter lines include SolarEdge, Fronius, SMA, and Aurora (Power-One/SunPower-branded).
- Remote tech support is free. Site-visit work is covered if the warranty applies; otherwise, a dispatch fee + hourly rate may apply.
SunCommon markets a Solar Canopy (timber carport-style array with bifacial panels) that can integrate with an EV charger.
3. Catamount Solar
Vermont solar installers also include Catamount Solar, which offers off-grid depth plus a service-first option. They pair systems with battery storage options and provide credit union loans with minimal down payment.
- 15-year workmanship warranty. Also, components are built for 25–35 years of use.
- Partners with Vermont Federal Credit Union and EastRise to provide solar loans.
- A typical inverter/racking stack includes SolarEdge inverters and IronRidge racking.
- Free site evaluation; uses your bill + imagery to size the system; proposal includes system size, components, annual production, % bill offset, and fixed price.
- Worker-owned cooperative, i.e., every crew member has an owner-level stake in delivery quality and service follow-through.
Their co-op model and off-grid track record appeal to buyers seeking resilience-focused solar power in Vermont without upsells.
4. Building Energy
When comparing solar companies in Vermont, shoppers must also include Building Energy. It’s a solar contractor that delivers a whole-home plan (PV + efficiency + storage), with in-house energy audits, insulation/weatherization, heat pumps, construction, and home battery options.
- Installs SolarEdge, FranklinWH, and Fortress residential batteries.
- 5-year workmanship warranty covering parts, labor, and roof-leak remediation. Extended workmanship options are available.
- Includes Panasonic and LG Solar (modules) and SolarEdge (inverters/optimizers).
- Systems include data monitoring that sends email alerts on errors.
Building Energy is well-known for its service-rich solar installation in Vermont. The company offers solar-ready roofing services, including an estimate of the total cost of ownership.
5. Southern Vermont Solar
Southern Vermont Solar stands out from other Vermont solar installers by pairing PV with batteries and guiding you through solar incentive programs. Their materials outline a workmanship warranty, battery options, and dedicated financing.
- 12-year workmanship warranty.
- Installs FranklinWH, Enphase IQ, and Tesla Powerwall (battery storage).
- Solar development/installation for businesses, farms, municipalities, schools, and community arrays.
Souther Vermont Solar is also a GMP-certified installer and official provider for Battery Lease and BYOD, listing options like $5,500 upfront or a 10-year lease at $55/month.
6. Granite State Solar
Granite State Solar is a recognized Vermont solar installer that clearly explains storage, EV charging, and loan options. They also include the standard solar services offered in the region.
- Installs Enphase IQ Battery (AC-coupled) and supports Tesla Powerwall 3.
- Offers home EV charger installation as a supplemental service to solar. Options include Enphase IQ 50 and ChargePoint Home Flex.
- REC, Qcells, and Canadian Solar modules with Enphase and SolarEdge electronics.
- 12-year transferable workmanship warranty.
- GSS will repair or replace faulty parts related to workmanship.
- Tesla Powerwall Certified Installer and Enphase Platinum Installer
GSS, a Vermont-based solar company, also offers a 25-year panel warranty, plus licensing (Apprentice/Journeyman/Master electricians) and full insurance coverage.
7. ReVision Energy
Looking for a solar installer in Vermont who can design, wire, and manage the whole system? ReVision offers concrete policies and parts lists so you know exactly what you are buying.
- Carries Qcells, Silfab, and REC panels; pairs with Enphase (microinverters/batteries) and SolarEdge where appropriate.
- Supports Enphase IQ Battery and is a Certified Tesla Powerwall Installer.
- ReVision runs a formal ESOP with a long-term share-allocation plan.
- Installs Level-2 home charging and delivers commercial L2/DC fast-charging projects end-to-end (design → incentives → install → service).
Before hiring ReVision, look for workmanship warranties and check the process they use for solar installation services beyond the listed equipment.
8. Plug PV
Plug PV is a well-rated solar installer in Vermont that pairs PV, storage, and EV with flexible financing (offers loans, leases, and PPAs).
- 10-year workmanship and ~25-year equipment coverage.
- Provides home and small-business Level-2 charger installs.
- Maintains a Vermont solar incentives hub.
- A third-party inspection on every install for quality assurance.
- NABCEP PV Installation Professional certification. Licensed master electricians and carry workers’ comp, general liability, and disability insurance.
Plug PV operates as a Palmetto subsidiary and has completed over 5000 projects, demonstrating its experience in solar energy services in Vermont and neighboring states.
9. Solaflect Energy
Include Solaflect Energy when comparing solar companies in Vermont for ground-mounted options. Solaflect designs and installs around its dual-axis solar tracker (and an Apollo unit for 100% off-grid EV charging) that they claim can produce ~40% more energy than fixed mounts.
- Complimentary site visit → shading/orientation study → production estimate → electrical-panel check → written proposal.
- Permitting drawings show trackers paired with SolarEdge inverters/optimizers; monitoring runs through the manufacturer’s app/portal.
- Mascoma Bank offers special solar loans for Solaflect customers (up to $60k, VT/NH; ITC-aligned payment step-down).
- Monitors Apollo for the life of the install with onboard controls that auto-report faults, self-update software, and enable remote fixes before a truck roll.
The dual-axis tracking offered by Solaflect Energy is intended to increase annual yield vs. fixed-tilt, which is helpful if you have yard space and want higher kWh per installed watt.
10. Smith & McClain
Smith & McClain has a builder-grade approach among Vermont solar installers. They offer PV design with construction, electrical, and efficient work, which is more than just a panel swap.
- 5-year workmanship warranty, insured. The team includes master/journeyman electricians and OSHA-30.
- Uses GoliathTech helical piers instead of concrete for cleaner installs.
- Sources through CED Greentech and Green Mountain Electric Supply.
- Handles storage and balance-of-system wiring via in-house electricians.
Have them list the full BOM (panels/inverter/battery) and the 5-year workmanship terms so you can compare offers from other solar companies in VT one-to-one.
11. HB Energy Solutions
HB Energy is a “one call” solar company in Vermont, bundling PV, battery backup, HVAC, plumbing, and electrical. Handy if you plan solar plus home upgrades now or later.
- Workmanship: 2-year workmanship on solar
- Certifications: Efficiency Vermont, Efficiency Excellence Provider, Enphase Certified, Tesla Powerwall Certified, plus Sonnen, FranklinWH, & Generac storage credentials.
- Lists VSECU as a financing partner.
Because HB also does construction/HVAC/plumbing, they can coordinate roof/electrical upgrades with your PV install and provide ongoing solar repair & maintenance.
Powering Vermont’s Tomorrow with Solar Opportunities
Vermont’s solar landscape in 2025 is defined by rapid policy innovation and a strong drive toward renewable energy. Local solar companies play a critical role in this transformation, making solar more accessible and efficient for homeowners.
As incentives evolve and installation processes become faster, choosing the right provider ensures Vermonters maximize their savings and contribute meaningfully to a greener future. The best solar companies in Vermont are not just vendors; they are partners in shaping the state’s energy future, bringing expertise and innovation to every project.
