The Best Solar Companies in Maine (2026 Guide)

While Maine may not be known for blazing sun, its residents are embracing solar as a way to offset high utility costs, particularly during long winters. Thanks to net metering, state rebates, and better-performing solar technology, Mainers from Portland to Bangor are proving that solar can work — even in the Northeast.

Choosing the right installer matters just as much as choosing to go solar in the first place — the difference between a company that’s licensed, experienced with Maine’s Net Energy Billing program, and backed by a real workmanship warranty and one that isn’t can add up to thousands of dollars over the life of your system. Below, you’ll find Maine’s solar companies compared side by side, including which ones have completed EnergyScout’s verification process, so you can start your search with a shorter, more confident list.

Last Reviewed: 2026-09-11

Solar Installers in Maine

EnergyScout tracks local and national solar companies serving homeowners throughout the state. Use the directory below to compare installers based on experience, service area, products, certifications, and other company information.

Companies displaying the EnergyScout Verified badge have completed an additional review process that includes a direct interview, screening customer feedback, and providing evidence of completed installations. Verification provides another layer of information when comparing solar companies, but homeowners should still evaluate multiple installers to find the right fit for their home.

How EnergyScout Verified works →

How to choose a solar installer.

Before contacting installers, read our guide on how to evaluate proposals, warranties, and long-term support.

State Solar at a Glance

34th
Residential
7th
Commercial
34th
Utility
Jobs Capacity
708
Solar Jobs
44th
Ranked for Solar Jobs
State Solar Capacity
1,772
Total Solar Installed (MW)
14.20%
% of states electricity from solar.
323,061
Enough to power homes

Source: Solar Energy Industries Association (SEIA), State By State data, as of January 2026 — seia.org/solar-state-by-state

Why Solar makes sense in Maine

Understanding Home Solar and Storage in Maine

Maine’s Solar Progress:
Maine ranks #34 in residential solar installations with over 1,700 MW of total capacity. The state generates over 14% of its electricity from solar — significantly above the national average — demonstrating strong commitment to renewable energy despite challenging weather. Maine employs over 700 solar workers, with installer networks across Portland, Bangor, Augusta, and rural communities. While Maine doesn’t receive Arizona-level sunshine, solar panels still perform well thanks to long summer days and modern technology that generates power even on cloudy days.

High Electricity Costs Drive Adoption:
Maine has some of the highest electricity costs in New England, often exceeding $0.18-$0.22 per kWh, making every kilowatt-hour of solar production valuable. Many Maine residents rely on expensive heating oil or propane, and electricity costs are a major household expense. Maine offers net metering, allowing homeowners to earn credits when their systems produce excess energy — particularly valuable during sunny summer months when production peaks and credits can offset winter usage. The state also provides sales tax exemption on solar equipment. While Maine doesn’t offer state tax credits or SRECs currently, high electricity rates and strong net metering deliver competitive economics. Most Maine solar systems achieve payback within 10-14 years.

Cold Weather Performance and Rural Applications:
Maine experiences harsh winters with heavy snow, but solar panels actually perform well in cold temperatures (they lose efficiency in extreme heat, not cold). The challenge is snow accumulation, which can temporarily reduce production until snow slides off or is cleared. Maine’s long summer days provide excellent production when the sun is high and days stretch past 9 PM. Many Maine homeowners live in rural areas where grid reliability can be challenged by ice storms and nor’easters. Solar panels paired with battery backup provide critical energy security during extended winter outages. For Maine residents facing high electricity costs and harsh weather, solar offers both financial savings and energy independence.

Frequently Asked Questions

A typical home solar system in Maine costs around $33,787 before incentives — about $2.94 per watt for a 11.5 kW system, per EnergySage’s September 2026 marketplace data. With financing, many homeowners see a monthly loan payment that’s a bit less than what they were already paying their utility — and once the loan’s paid off, that payment drops to zero while utility bills keep climbing. Comparing quotes from a couple of verified installers is still the best way to see exact numbers for your home.
Maine continues to use Net Energy Billing for eligible distributed generation, with Central Maine Power and Versant Power administering the applicable utility tariffs. The important distinction is between a program that exists in law and one that is funded, open and available to a homeowner at your address today. Incentives may take the form of a rebate, production payment, renewable-energy credit, tax treatment, battery payment or utility-specific tariff. Some require a reservation before construction, a participating contractor, income qualification or enrollment in a utility program. Ask the installer to identify every incentive by its official program name, show the current value and eligibility requirements, and state who receives the payment or credit. If funding is limited, request confirmation that capacity or funds are actually available. A proposal should never subtract an incentive from the net price simply because it existed in a prior program year.
Maine’s seasonal production is pronounced. Snow, roof pitch and tree shading should be modeled month by month; a high annual-production estimate is not useful if winter conditions are ignored. That issue should be built into the proposal rather than treated as an afterthought. Ask the installer to show how it affects system size, annual production, bill savings, equipment choice and long-term service. For weather or roof concerns, review roof age, structural requirements and the exact product certifications rather than accepting a blanket claim about durability. For rate-related concerns, ask for tariff-aware modeling instead of a simple annual-kWh calculation. If battery storage is part of the solution, compare solar-only and solar-plus-storage economics side by side and ask exactly which loads the battery will support during an outage.
Get at least three proposals and require each company to quote the project on the same basis: cash price, cost per watt, expected first-year production, degradation assumptions, equipment, workmanship coverage and the current Maine utility tariff. Ask who performs the installation, who handles interconnection and incentive paperwork, and who will service the system if an inverter, optimizer or battery fails years later. Separate financing from system price so interest and dealer fees do not hide the underlying cost. Ask for recent projects in your utility territory, because local tariff, permitting and interconnection experience can be more valuable than a large national footprint. EnergyScout Verified status adds another diligence signal, but it should complement—not replace—competitive quotes and contract review.
Maine’s average residential electricity rate sits at 29.59 cents per kWh as of September 2026, well above the 18.34-cent national average, with a typical monthly bill of about $169. Rates have risen 5.2% over the past year, close to the national average increase of 5.0%.

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