Roof + Solar Companies in Maine:
Net Energy Billing & Savings (2026)
Maine homeowners face some of the highest electricity rates in New England — particularly in northern and eastern Maine where Versant Power charges $0.36/kWh. Combined with Maine's strong 1:1 Net Energy Billing program, 100% property tax exemption, and Efficiency Maine financing options, the case for solar in the Pine Tree State is compelling. This guide covers the top-rated companies, how every Maine incentive works, utility-by-utility details for CMP and Versant Power, permitting requirements, and realistic savings estimates for 2026.
Why Maine Is a Compelling Solar Market in 2026
Maine is a state of stark solar contrasts. In the southern and central regions served by Central Maine Power (CMP), homeowners pay $0.27/kWh — already well above the national average. In northern and eastern Maine served by Versant Power, the rate climbs to $0.36/kWh — the highest electricity rate in New England and among the highest in the United States. These elevated rates create unusually strong solar economics: every kilowatt-hour your system produces is worth more in Maine than almost anywhere else in the country.
Maine's housing stock adds to the solar opportunity. The state's coastal communities, mill towns, and rural communities are filled with Colonial-era capes, Victorian-era homes, and mid-century colonials — many carrying aging roofs well past their useful life. The bundled roof + solar approach makes particular financial sense here: replace an overdue roof and install solar in a single project, spreading the cost across one financing arrangement rather than two separate expenditures.
Maine's solar policy environment is solid if not exceptional. Net Energy Billing provides 1:1 retail-rate credits for residential rooftop systems — one of the strongest crediting mechanisms in New England. A mandatory statewide 100% property tax exemption protects homeowners from increased assessments. Efficiency Maine Home Energy Loans provide accessible purchase financing at 7.99% APR. The loss of the federal Investment Tax Credit (expired December 31, 2025) removes the single largest incentive, but Maine's state-level stack remains meaningful.
We track 1 roof + solar bundle company serving Maine. Our rankings use the same 5-category methodology applied across all states — evaluating integration quality, roofing materials, solar equipment, reputation, and pricing.
Top Roof + Solar Companies in Maine
Ranked by overall score using our 5-category methodology. All companies below have been verified as operating in Maine.
Sunergy Solutions
Sunergy Solutions is our Editor's Choice for Maine homeowners. They serve all of Maine with deep experience in Net Energy Billing interconnection with both Central Maine Power and Versant Power. Their bundled roof + solar approach is well-suited to Maine's aging housing stock, and their premium CertainTeed Landmark shingles are built for coastal nor'easters and heavy snow loads common across the Pine Tree State.
For Maine homeowners navigating utility interconnection timelines — CMP's 4–8 weeks and Versant Power's 6–10 weeks — Sunergy handles the complete process from permits to Net Energy Billing enrollment, so you don't have to manage Maine's complex utility paperwork.
Maine Solar Incentives (2026)
Maine's solar incentive stack is straightforward but meaningful: strong 1:1 net metering, mandatory property tax exemption, sales tax exemption on equipment, and Efficiency Maine financing. Here's what's available in 2026.
Net Energy Billing (NEB)
1:1 Retail RateResidential RooftopFull retail credit for every excess kWh sent to the grid — rolls over monthly
Maine's Net Energy Billing program provides residential rooftop solar customers with a credit at the full retail electricity rate for excess solar production exported to the grid. This 1:1 crediting applies to both CMP and Versant Power customers. Credits roll over month to month, meaning summer's long-day overproduction offsets winter heating season bills.
For Versant Power customers in northern Maine, this means NEB credits are worth $0.36/kWh — the highest net metering value in New England. For CMP customers, credits are worth $0.27/kWh — still well above the national average. Net Energy Billing is the single most important Maine solar incentive.
Source: Maine PUC, Title 35-A M.R.S. §3209-A · Last verified: February 2026
100% Property Tax Exemption
Statewide MandatoryNo Local Vote NeededSolar-added home value fully exempt from property taxes — in every Maine municipality
Maine mandates a 100% property tax exemption on the value added to your home by a solar energy system. Unlike New Hampshire's local-option exemption, Maine's is mandatory and statewide — every municipality must apply it. A typical Maine solar installation adds $15,000–$30,000 to assessed home value; without this exemption, that increase would generate $300–$600 per year in additional property taxes depending on your municipality's mill rate.
Source: 36 M.R.S. §655(1)(N) · Last verified: February 2026
5.5% Sales Tax Exemption
Solar Equipment OnlyMaine's 5.5% sales tax waived on solar panels, inverters, and associated equipment
Maine exempts solar energy equipment from the state's 5.5% sales tax. This applies to solar panels, inverters, mounting hardware, and associated electrical equipment. On a typical Maine solar installation (equipment portion approximately $15,000–$20,000), this exemption saves $825–$1,100. The roofing materials in a bundle project do not qualify for this specific exemption, but the solar equipment savings are meaningful.
Source: 36 M.R.S. §1760(85) · Last verified: February 2026
Efficiency Maine Home Energy Loans
7.99% APRUp to $25,000Below-market financing for solar purchases through participating Maine lenders
Efficiency Maine's Home Energy Loan program offers fixed-rate financing at 7.99% APR for solar installations, with loan amounts up to $25,000 and terms up to 15 years. Loans are originated through participating local Maine lenders. For homeowners who want to own their system outright, the Efficiency Maine loan provides an accessible purchase financing option that can be combined with the property and sales tax exemptions to reduce total project cost.
Efficiency Maine also offers a separate Battery Demand Management Program that pays approximately $100 per kilowatt of battery capacity annually for enrolling qualifying battery storage systems in demand response. This provides ongoing revenue for homeowners adding storage to their solar installation.
Source: efficiencymaine.com · Last verified: February 2026
PACE Financing
~4.99% APRParticipating MunicipalitiesProperty-Assessed Clean Energy financing repaid through property tax bills
Maine's PACE (Property-Assessed Clean Energy) financing program allows eligible homeowners in participating municipalities to finance solar installations at competitive rates (approximately 4.99% APR), with repayment through a special property tax assessment. PACE financing can be particularly advantageous for homeowners who want long-term purchase financing and are in participating Maine municipalities. Check with your municipality to confirm PACE availability.
Source: Maine PACE program · Last verified: February 2026
Federal ITC Update: Important Change for 2026
The homeowner-claimed federal solar Investment Tax Credit (ITC) expired December 31, 2025. As of 2026, Maine homeowners who purchase a solar system outright cannot claim the federal 30% ITC on their personal tax return. However, solar leases and PPAs continue to benefit from a 30% ITC through Third-Party Ownership rules through 2027 — meaning companies offering lease/PPA financing pass these savings through in lower monthly payments. Confirm current federal credit status with your installer and a qualified tax professional.
Maine vs. Massachusetts Solar Incentives
Maine lacks Massachusetts' SMART 3.0 production incentive and $1,000 state tax credit, but compensates with higher electricity rates (particularly Versant at $0.36/kWh vs. Eversource MA at $0.28–$0.31/kWh) and a simpler, mandatory property tax exemption. For Maine homeowners in Versant Power territory, the higher baseline electricity rate can actually deliver stronger solar economics than southern New England despite the absence of a production incentive.
Learn how the financial math worksMaine Electric Utilities
Maine is served by two primary investor-owned utilities. Both participate in Net Energy Billing on the same terms, but their rates differ significantly — which directly affects solar economics.
Central Maine Power (CMP)
Serves southern and central Maine: Portland, Lewiston, Auburn, Augusta, Brunswick, Bath, Biddeford, Saco, and surrounding communities
Versant Power
Serves northern and eastern Maine: Bangor, Brewer, Ellsworth, Houlton, Presque Isle, and much of Aroostook County
Highest rate in New England: Versant Power's $0.36/kWh rate means solar panels save more per kilowatt-hour here than anywhere else in the region. Bangor-area homeowners considering solar should prioritize getting a quote — the economics are exceptionally favorable.
Not sure which utility serves your home? Check your current electric bill — your utility name appears on every statement. Southern and central Maine (Portland, Lewiston, Augusta) are served by Central Maine Power. Northern and eastern Maine (Bangor, Ellsworth, Aroostook County) are served by Versant Power. A few Maine municipalities have their own electric utilities — check with your local town office if you're uncertain.
Maine Solar Permitting & Legal Protections
Maine solar permitting is handled at the municipal level, with no statewide framework like Vermont's CPG process. Maine law provides strong solar access and HOA protections for homeowners.
Building Permit
Required from your local municipality covering structural aspects of the solar and roofing installation. Most Maine towns process solar permits in 3–6 weeks. Coastal communities and historic districts may take longer.
Electrical Permit
Required for inverter, wiring, and utility interconnection components. Must be performed by or under supervision of a licensed Maine electrician. Typically processed alongside the building permit.
Utility Interconnection
Your installer files an interconnection application with CMP or Versant Power. CMP typically takes 4–8 weeks; Versant Power takes 6–10 weeks. Your system cannot operate until the utility installs a bi-directional Net Energy Billing meter.
System Inspection
After installation, your local building inspector and utility conduct final inspections. Most Maine inspections are completed within 1–3 weeks of installation completion. Final utility inspection triggers NEB meter installation.
Maine Solar Legal Protections
Solar Easement Law (Title 33, Chapter 28): Maine law allows homeowners to create solar easements to protect access to sunlight for solar energy systems. An easement can be negotiated with neighboring property owners to prevent future construction or vegetation from shading your panels. These easements are recorded with your deed and run with the land.
HOA Solar Rights (Title 33, Chapter 28-A): Maine law prohibits homeowners' associations from unreasonably restricting solar energy systems. While HOAs can establish reasonable aesthetic guidelines (such as panel color or placement guidelines that don't significantly reduce efficiency), they cannot ban solar outright. If your HOA attempts to block a solar installation, consult Maine's solar rights statute and consider seeking legal advice.
Historic Districts: Maine's solar rights laws do not override historic district regulations in municipalities with designated Historic Preservation Boards. Portland's Western Promenade and Congress Street Corridor, Kennebunkport, and other coastal historic districts may require additional review for visible rooftop solar. Plan for 4–8 additional weeks if your property is in a historic district.
Maine Solar Costs & Savings (2026)
What does a roof + solar bundle actually cost in Maine — and what are the realistic savings? Here's what our research shows for Maine homeowners in 2026.
The Two-Utility Divide: CMP vs. Versant Power Economics
Maine's two-utility structure creates meaningfully different solar economics depending on where you live. CMP customers in southern and central Maine pay $0.27/kWh — above the national average but lower than Massachusetts or Rhode Island. Versant Power customers in northern Maine pay $0.36/kWh — the highest in New England. This rate difference directly affects payback period: Versant customers can often achieve payback 2–3 years faster than equivalent CMP customers with the same system and household usage.
For Versant Power customers in the Bangor area, the solar economics are particularly compelling: high rates, full 1:1 NEB credits at $0.36/kWh, Efficiency Maine financing options, and property + sales tax exemptions combine to make solar one of the strongest ROI home investments available.
Understanding the $0 Down Model in Maine
The most common financing approach for Maine roof + solar bundles is a lease or PPA. Under these structures, you pay $0 upfront and instead pay monthly for solar energy produced — typically 30–45% below your current CMP or Versant Power bill. The roof replacement is bundled into the overall project financing. See our guide on how "free roof" financing actually works for a full breakdown.
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Maine Cities We Cover
Our Maine coverage spans the state's major population centers, from the greater Portland metro area in the south to Bangor in the north. Each city page provides local utility details, permitting information, and savings estimates specific to your area.
Maine Solar FAQ
How does Net Energy Billing work in Maine?
Maine's Net Energy Billing (NEB) program is the state's version of net metering. Residential rooftop solar customers receive a credit at the full retail electricity rate for every excess kilowatt-hour sent to the grid — 1:1 crediting. Credits roll over month to month, so summer overproduction offsets winter bills. Both Central Maine Power (CMP) and Versant Power participate in NEB on the same terms. Maine's NEB program is one of the stronger net metering policies in New England, providing real financial value for residential solar customers.
Does Maine have a property tax exemption for solar?
Yes. Maine provides a 100% property tax exemption on the value added to your home by a solar energy system. Under Maine law, your property assessment cannot increase as a result of installing solar panels. This is a mandatory statewide exemption — it applies in every Maine municipality without any local vote required. A typical solar installation adds $15,000–$30,000 to home value; this exemption prevents any corresponding increase in your annual property tax bill.
What is the Maine solar sales tax exemption?
Maine exempts solar energy equipment from the state's 5.5% sales tax. This exemption applies to solar panels, inverters, mounting hardware, and associated equipment. On a $25,000–$40,000 roof + solar bundle, the 5.5% exemption on the solar equipment portion represents roughly $800–$1,500 in savings. The roofing materials portion of the project does not qualify for this specific exemption.
What are Efficiency Maine Home Energy Loans?
Efficiency Maine is a quasi-governmental agency that administers Maine's energy efficiency programs. Their Home Energy Loan program offers fixed-rate financing at 7.99% APR for solar installations, with loan amounts up to $25,000 and terms up to 15 years. Loans are available through participating local lenders and can be combined with Maine's tax exemptions to reduce net project cost. For Maine homeowners who want to own their system outright but need financing, the Efficiency Maine loan is typically competitive with home equity options for smaller amounts.
What utilities serve Maine and which has higher electricity rates?
Maine is served by two major investor-owned utilities: Central Maine Power (CMP) serves southern and central Maine (Portland, Lewiston, Augusta, Brunswick) at approximately $0.27/kWh. Versant Power serves northern and eastern Maine (Bangor, Ellsworth, Presque Isle) at approximately $0.36/kWh — the highest electricity rate in New England. Both utilities offer Net Energy Billing at the full retail rate, which means Versant Power customers actually have stronger solar economics due to higher baseline rates.
Is there a federal tax credit for solar in Maine in 2026?
The homeowner-claimed federal 30% Investment Tax Credit (ITC) expired December 31, 2025. As of 2026, Maine homeowners who purchase a solar system outright cannot claim the federal ITC on their personal tax return. However, solar leases and PPAs offered by companies still benefit from a 30% ITC through Third-Party Ownership rules, meaning the lower monthly payments on lease/PPA financing structures partially reflect this credit. Confirm current tax credit status with your installer and a qualified tax professional.
Can I get a $0 down roof + solar bundle in Maine?
Yes. Maine homeowners can get a complete roof replacement and solar installation with $0 out-of-pocket through lease and PPA financing. Your monthly payment is typically 20–40% less than your current CMP or Versant Power bill. The roof replacement is bundled into the overall project. Alternatively, Efficiency Maine Home Energy Loans provide affordable purchase financing at 7.99% APR. See our guide on $0 down financing for a full breakdown of how these structures work.
How much does a roof + solar bundle cost in Maine?
A combined roof replacement and solar installation in Maine typically ranges from $25,000–$45,000 depending on roof size, shingle selection, and desired solar output. Maine's two-utility market creates different economics: CMP-territory homeowners (southern/central Maine, $0.27/kWh) typically see payback in 9–13 years, while Versant Power territory homeowners (northern/eastern Maine, $0.36/kWh) may see payback in 8–11 years due to higher electricity costs. Most homeowners opt for $0 down financing.
What permits are required for solar in Maine?
Maine solar installations require building and electrical permits from your local municipality. Maine does not have a statewide solar permitting framework like Vermont's CPG process — each municipality handles permitting independently. Most Maine towns process solar permits in 3–6 weeks. Historic districts in Portland and other coastal towns may require additional review. Utility interconnection with CMP or Versant Power is a separate process taking 4–10 weeks. Maine's solar easement law (Title 33, Chapter 28) protects your right to solar access.
How do I choose the best solar + roof company in Maine?
Look for companies with Maine contractor licensing, solar-specific certifications (NABCEP), experience with CMP or Versant Power interconnection depending on your service territory, strong warranty terms on both roofing and solar, and transparent financing options. Our Maine best companies comparison ranks the top installers across all these criteria.
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