Maine solar panels: The complete guide in 2026

Data updated Jan 23, 2026

Written by: Emily Walker

Interested in going solar? You'll need to install a 11.48 kW solar panel system to cover the average electric bill in Maine, which will cost you about $33,795.

Cost for an average system in Maine


Cash price$33,795

25-year savingsPayback periodElectricity offset
$37,70516 Years93%
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Going solar in Maine

Maine is better known for dreary winters than for ample sunshine. But considering the state's high electricity prices, solar still makes sense for most Mainers.

While The Pine Tree State doesn't offer many state-level rebates and incentives for solar, it does have a rock-solid net metering policy. So solar still pays for itself pretty quickly.

Here's what you need to know about going solar in Maine.

Cost

How much do solar panels cost in Maine?

Solar panels will save you a lot of money over time, but the upfront costs aren't cheap. The average Maine homeowner needs a 11.48 kW solar panel system to cover their electricity needs, which comes out to $33,795 before incentives. Prices range from $28,726 to $38,864, but Maine also has some great local incentives. 

While this may sound high, it will pay off in Maine. That's why over 9,700 Maine homeowners have used EnergySage to receive and compare quotes for solar installations. You can expect to earn back your initial solar investment through electricity savings in about 16.23 years, while most systems last at least 25 years. You'll often see this number referenced as your solar payback period.

There are a few ways to finance your solar panel system so you don't have to provide all that money upfront. 

  • Cash purchase: You'll own the system and pay for it up front. This provides the best long-term savings. 

  • Solar lease or power purchase agreement (PPA): A third-party company owns your system and either leases you the solar panels (solar lease) or allows you to purchase the electricity they generate (PPA). These typically deliver immediate savings and can make a lot of sense if you’re looking to keep your capital flexible. Just make sure to choose an offering with low annual escalators to ensure it will continue to provide long-term savings. 

  • Solar loan: This allows you to retain ownership of your system while owing little to no money upfront. Solar loans aren't all created equal. If you have access to subsidized clean energy loans through local incentive programs, that's usually your best bet. A home equity loan or a personal loan are often your next best options—private solar loans typically come with higher interest rates or upfront fees.

Solar panels on a house

Incentives

What are the best solar rebates and incentives in Maine?

Incentives help bring solar's price tag down considerably in Maine. Here are the major ones to know about:

IncentiveAverage savings in MaineDescription

Maine solar property tax exemption

The typical property tax in Maine is 1.09%

Exempt from paying property taxes on the value added by solar panels.

Is net metering available in Maine?

Some states grant you bill credits that you earn from your utility company whenever your solar panel system generates excess electricity and sends it to the grid. This incentive is known as net metering, and it can significantly reduce—or even eliminate—your electric bill.

In Maine, the net metering rules apply to all electric utilities, including Versant, Central Maine Power, Eastern Maine Electric Coop, and smaller providers.

One detail to note: Maine’s net metering policy is referred to as “net energy billing.” This is a little confusing, because in the solar industry, “net billing” is typically used to describe policies with less favorable terms for consumers.

This isn't the case in Maine: It has an excellent solar buyback policy, among the best in the U.S.

Learn more about Maine's net metering policy, or check out program specifics below:

A house with rooftop solar panels connected to the grid

Equipment

Equipment quality

The more efficient a solar panel is, the more power per square foot. As of 2025, the most popular solar panels have a rated output of 450 watts. To get the most out of your solar energy system, choose panels with at least that much power output. 

Your solar inverter setup is also important consideration—make sure it suits your roof’s layout. 

And if you’re interested in a solar battery, it’s best to choose one that integrates with that inverter. 

The best equipment tends to be more expensive, but it will often save you more money in the end. Premium equipment often has the best warranty terms, guaranteeing 25-40 years of coverage for repairs, replacements, and the lowest degradation rates (meaning they’ll maintain more of their power output for longer).

See our list of the best solar panels

Companies

Who are the best solar installers in Maine?

We pre-screen all of the solar companies on EnergySage to ensure they'll provide you with a high-quality installation. We then rate them based on their results, reputation, and responsiveness. Here are the highest-rated EnergySage installers in Maine:

resources

Top solar resources for Maine

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