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Last Updated: February 25, 2025
Rooftop solar is one of the most easily accessible forms of renewable energy for Maine homes. Solar power can cut your energy costs and lower your carbon footprint. However, it's important to hire a reputable solar installer. That’s why, after reviewing and analyzing providers, we put together a guide to the most reliable solar companies in Maine. These companies have a reputation for dependable quality service.

Our Rating
User Rating
Informative resources
Clear pricing policy
Free quotes
Reliable customer support
Services Offered

Our Rating
User Rating
Reliable customer support
Prompt service delivery
Free quotes
Clear pricing policy
Informative resources
Services Offered

Our Rating
User Rating
Free quotes
Clear pricing policy
Informative resources
Reliable customer support
Services Offered

Our Rating
User Rating
Prompt service delivery
Free quotes
Informative resources
Reliable customer support
Clear pricing policy
Services Offered

Our Rating
User Rating
Free quotes
Informative resources
Clear pricing policy
Reliable customer support
Services Offered

Our Rating
User Rating
Clear pricing policy
Free quotes
Reliable customer support
Informative resources
Services Offered

Our Rating
User Rating
Reliable customer support
Free quotes
Informative resources
Clear pricing policy
Services Offered

Our Rating
User Rating
Reliable customer support
Informative resources
Clear pricing policy
Free quotes
Services Offered

Our Rating
User Rating
Free quotes
Reliable customer support
Informative resources
Clear pricing policy
Services Offered

Our Rating
User Rating
Clear pricing policy
Prompt service delivery
Free quotes
Informative resources
Reliable customer support
Services Offered
Today's Homeowner looks at dozens of datapoints on solar companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:
Adopting solar power lets homeowners cut utility bills while helping the environment by reducing your carbon footprint using clean energy. If you’re determining whether to go solar, consider these key factors for choosing an installer.
It's important to hire a licensed solar installer. This helps ensure that the work is done properly using current best installation practices. In Illinois, the state Commerce Commission licenses distributed generation energy contractors, including solar installers.
Check review sites like the Better Business Bureau (BBB), TrustPilot, and Google Reviews to see feedback from past customers on local solar companies. Detailed reviews can help you assess a company's reliability and customer service. Use caution with companies that have barely any reviews or mostly negative ones.
To find a solar installer that fits your budget, ask for free, detailed quotes from three to five providers. The quotes should outline all costs and list the solar equipment included. Looking at several quotes helps you identify the best value.
High-quality solar installations should have robust workmanship and performance guarantees. The workmanship guarantee covers any installation issues like poor alignment, cracks in the panels, or poor wiring. The output guarantee ensures an energy generation baseline. Strong guarantees reflect a solar provider's confidence in its installations.
Solar energy is great for helping you lower electricity bills over time. Make sure you consider these aspects when considering the final cost and value of solar panels.
Solar panel costs vary based on your system's capacity and the technology used. The typical Maine solar array has a capacity of 6.4 kilowatts. Homeowners in the area can expect to pay approximately $3,760 per kilowatt; the average Maine homeowners spends about $16,818 on a new solar array after accounting for federal tax breaks. (Some homeowners prefer to lease solar panels to lower upfront costs.) A personalized quote from a local solar installer will account for factors such as the size, capacity, and panel type of the planned system, and should include prices for permit fees, labor, and preliminary work.
Incentive Amount:
Appliances
Air Purifier: $50
Clothes Washer: $50
Dehumidifier: $50
Electric Clothes Dryer: $50
Freezer: $50
Refrigerator: $50
Room Air Conditioner: $25
Refrigerator/Freezer Recycling: Free pickup and $50, plus an additional $10 if recycling a room A/C at the same time
Heating & Cooling
Air Source Heat Pump: $400 - $600
Central A/C: $300 - $600
Ductless Mini-Split Heat Pump: $400
Geothermal Heat Pump: Up to $6,000/home
Furnace Blower Motor (ECM): $50 - $100
Miscellaneous
Advanced Power Strip: $10
Air Sealing: Up to $400/home
Attic Insulation: Up to $300/home
Duct Sealing: Up to $500/home
Lighting: In-store discounts, varies
Pool Pump: $275
Smart Thermostat: $100
Wall Insulation: Up to $400/home
Incentive Type: Property Tax Incentive
Incentive Amount:
Varies
A solar photovoltaic (PV) system can generate power to run any electric system or appliance in your home. A more specific example is installing a solar water heating system.
With home solar energy, you can save money on your energy bill, lower your property's emissions, and be better prepared if there's an outage to the local grid.
It depends on your home's location and the kind of panels you plan to use. Since there's a moderate amount of snowfall in Maine, your best time to get solar is in the spring and fall.
Yes, it's possible to use home solar energy alongside conventional power sources. In many areas, solar panels are designed to supplement your existing energy sources, which means you can reap the savings and environmental benefits of solar energy without having to completely switch over.
Your payback period is the time to earn a net profit from your solar panels. It will vary based on their rated capacity, the average sunlight in your area, and the rate your utility charges per kilowatt of power. Maine gets quite a bit of sunlight per day, so an average payback period could last up to 18.6 years per 5 kW of capacity.
Net metering is a type of "power purchase agreement." If your utility or state offers net metering, you can send the solar energy you don't use to the grid. In return, they'll give you a credit on your power bill.
When it comes to taxes, the federal government offers a tax credit of up to 30% of the panels' cost. Depending on where you live, you could also claim or apply for state or property tax incentives. For insurance, your monthly premium may be slightly higher because solar panels increase your property's value. You should consult with your accountant or insurance agent for information specific to your case.
Solar energy is on par with other forms of renewable energy. Their maintenance costs are low and today's systems can stand up to the worst conditions.
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