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NuWatt designs, installs, and manages solar, battery, heat pump, and EV charger systems across 9 states. One company, one warranty, one point of contact.
Get a Free QuoteRepresentative installations reflecting typical Maine projects — specifications, costs, and outcomes reflect real NuWatt project data.
From a coastal Cape Cod-style home in Cape Elizabeth to a commercial auto shop in Lewiston, see how Maine homeowners and business owners are going solar in 2026 — with real system sizes, financing choices, and the specific considerations that matter in Maine.
Each project reflects common decisions Maine homeowners face: roof vs. ground mount, which utility, Propel vs. Efficiency Maine financing, and whether to add battery backup.
Cape Elizabeth, ME 04107
System size
8 kW
Annual production
~9,600 kWh/yr
Financing used
Propel ($0 down)
Net cost (Propel / Cash)
$15,360 / $25,600
Equipment
Silfab 440W (18 panels)
Mount type
Roof mount, south-facing
Project notes
Coastal salt air — Silfab FEOC panels chosen for corrosion-resistant aluminum frames. System covers ~85% of annual electricity use.
Brunswick, ME 04011
System size
10 kW
Annual production
~12,000 kWh/yr
Financing used
Propel ($0 down)
Net cost (Propel / Cash)
$22,400 / $32,000
Equipment
Silfab 440W (23 panels)
Mount type
Roof mount, south-facing, 30° pitch
Project notes
Ideal south-facing roof with minimal shading. Full offset of annual electricity — covers EV charging. Interconnected via CMP net energy billing within 3 weeks.
Augusta, ME 04330
System size
12 kW ground mount
Annual production
~14,400 kWh/yr
Financing used
Cash purchase
Net cost (Propel / Cash)
$25,920 / $43,200
Equipment
Silfab 440W (27 panels)
Mount type
Ground mount, large lot, dual-axis optimal tilt
Project notes
Shaded south-facing roof made ground mount the right call. Large lot allowed optimal 34° tilt, maximizing winter production. Permitting through City of Augusta took 10 business days.
Scarborough, ME 04074
System size
6.5 kW + Tesla Powerwall 3
Annual production
~7,400 kWh/yr
Financing used
Efficiency Maine loan
Net cost (Propel / Cash)
$38,500 total (system + battery)
Equipment
Silfab 440W (15 panels)
Mount type
Roof mount, southeast-facing
Project notes
Post-December 2023 ice storm, homeowner prioritized backup power. Tesla Powerwall 3 (13.5 kWh) keeps essentials running for 24-36 hours. Battery eligible for Efficiency Maine loan — no federal battery credit applies to homeowner purchases in 2026.
Portland, ME 04103
System size
7 kW
Annual production
~8,100 kWh/yr
Financing used
Propel ($0 down)
Net cost (Propel / Cash)
$15,680 / $22,400
Equipment
Silfab 440W (16 panels)
Mount type
Roof mount, steep 45° pitch, split array around dormers
Project notes
Historic neighborhood — panels placed on rear roof face to preserve street character. Steep pitch reduces snow accumulation. Portland code required additional structural review for the 45° pitch. Lead time: 6 weeks contract-to-PTO.
Bangor, ME 04401
System size
5 kW
Annual production
~5,600 kWh/yr
Financing used
Efficiency Maine loan (0% for income-eligible)
Net cost (Propel / Cash)
$11,200 / $16,000
Equipment
Silfab 440W (12 panels)
Mount type
Roof mount, south-facing
Project notes
Versant's $0.32/kWh rate (higher than CMP) shortens payback to ~11 years at cash price. Efficiency Maine income-eligible loan reduced effective cost significantly. Modular construction handled full system weight without structural reinforcement.
Belgrade, ME 04917
System size
4 kW off-grid capable
Annual production
~4,600 kWh/yr
Financing used
Cash purchase
Net cost (Propel / Cash)
$28,000 (panels + 2× battery)
Equipment
Silfab 440W (9 panels)
Mount type
Roof mount with battery bank
Project notes
Seasonal camp — system operates April through November primarily. Sized for off-grid capable operation during power outages. Two 13.5 kWh batteries provide 27 kWh storage, covering 3-4 days of camp use in shoulder season.
Lewiston, ME 04240
System size
25 kW
Annual production
~30,000 kWh/yr
Financing used
Commercial loan + Section 48E ITC
Net cost (Propel / Cash)
$55,000 (before incentives)
Equipment
Silfab 440W (57 panels)
Mount type
Flat roof ballasted (no penetrations)
Project notes
Section 48E commercial ITC (30%) claimed by financing company, passed through as lower monthly payment. MACRS 20% bonus depreciation in 2026. Flat TPO roof — ballasted racking requires no roof penetrations. 3-phase interconnection with CMP. Break-even ~6.5 years.
Propel financing — NuWatt's Concert Loan + Prepaid ESA — lets Maine homeowners go solar with no money down. The financing company claims Section 48E (commercial ITC) and passes the savings to you as a lower system price.
$0 down payment
No upfront cost
9.69% APR / 25 years
Concert Loan terms
660 FICO minimum
$10K–$135K range
Propel requires FEOC-compliant panels — Silfab 440W (Made in USA) qualifies. Available in Maine only. Not available for off-grid or battery-only installs.
We serve homeowners and businesses across Maine — from the York beaches to Aroostook County. Both CMP and Versant utility territories supported.
Southern Maine
Portland, Scarborough, Biddeford, Saco, Cape Elizabeth, South Portland, Kennebunk, Kittery, York
Midcoast Maine
Brunswick, Bath, Boothbay Harbor, Camden, Rockland, Damariscotta, Wiscasset
Central Maine
Augusta, Waterville, Lewiston, Auburn, Farmington, Skowhegan, Belfast
Downeast Maine
Bangor, Ellsworth, Bar Harbor, Machias, Calais, Brewer, Orono
Northern Maine
Presque Isle, Caribou, Houlton, Fort Kent, Madawaska (inquire for availability)
Not sure if we cover your area? Call us at (877) 772-6357 or submit your address in the quote form. We will confirm coverage and give you a preliminary system estimate within 24 hours.
6–10 weeks
Typical contract to PTO
Faster with online permitting
1:1 credit
Net energy billing rate
Full retail for every kWh exported
100% exempt
Property tax exemption
Statewide — all municipalities
These are representative installations that reflect typical Maine projects — system sizes, costs, utilities, and challenges that are common for each home type and location. Specific homeowner details are not shared to protect privacy. All specifications, pricing, and production estimates reflect real NuWatt project data for Maine.
In 2026, Maine solar installations range from approximately $3.05 to $3.35 per watt installed, depending on system complexity, location, and utility. A 10 kW system typically runs $30,500 to $33,500 before incentives. The federal 25D residential tax credit expired December 31, 2025 and is no longer available to homeowners. State and utility incentives — including Efficiency Maine financing and net energy billing — remain available.
Propel is NuWatt's $0-down solar financing available in Maine. It uses a Concert Loan paired with a Prepaid Energy Services Agreement. The homeowner gets solar installed with no upfront cost. Minimum 660 FICO score, $10K-$135K loan range, 25-year term at 9.69% APR. Propel requires FEOC-compliant panels (Silfab 440W qualifies).
Silfab 440W panels are made in North America (Bellingham, WA) and qualify as FEOC-compliant (Foreign Entity of Concern free). This is required for Propel financing, which unlocks the third-party owner's Section 48E commercial ITC and passes savings to the homeowner as a lower price. For cash or loan purchases, other panels may be available.
Yes. Maine solar panels produce year-round, including in winter. Steep roof pitches (30-45°) help shed snow. January and February have reduced production — about 40-60% of summer output — but cold temperatures actually increase panel efficiency. Maine's high spring and summer irradiance compensates for the winter dip. Annual production estimates in this gallery account for full four-season Maine weather.
Typical timeline is 6-10 weeks from signed contract to Permission to Operate (PTO) from CMP or Versant. This includes engineering (1-2 weeks), permitting (1-3 weeks depending on municipality), installation (1-2 days), and utility interconnection (2-4 weeks). Portland and Scarborough have online permitting that can speed the process. Augusta generally runs 10 business days for permit approval.
CMP (Central Maine Power) serves the southern two-thirds of Maine at approximately $0.27/kWh. Versant serves northern and eastern Maine at approximately $0.32/kWh. Both offer 1:1 net energy billing — for every kWh you send to the grid, you receive full retail credit. Versant's higher rate means shorter payback periods for solar in their territory.
No. The Section 48E commercial investment tax credit is claimed by the system owner — in Propel financing, that is NuWatt/the financing entity, not the homeowner. The homeowner benefits indirectly through lower pricing. For homeowners who purchase outright or with a loan, the residential 25D ITC is no longer available (expired Dec 31, 2025). Commercial system owners (like auto shops) can still claim Section 48E through July 4, 2026.
Complete overview: costs, incentives, net billing.
$0 down for ME homeowners. 9.69% APR.
Average $3.05/W. No federal ITC for homeowners.
1:1 retail credit through CMP and Versant.
Section 48E still available for businesses.
100% property tax exempt. Sales tax exempt.
Tell us your address and average electric bill. We will model your home specifically — roof angles, shading, utility, and the best financing option for your situation. No pressure, no obligation.
Exploring Propel financing? Learn how $0-down solar works in Maine