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Maine offers Propel $0-down solar financing, Efficiency Maine income-eligible heat pump rebates, NEB 1:1 net metering, and statewide tax exemptions. For income-eligible households struggling with oil heating costs ($3.82/gal), pairing solar with heat pumps can reduce total energy costs by 60-80%. Here is your complete 2026 guide.
2026 Reality: The 30% federal solar tax credit (Section 25D) expired December 31, 2025. Income-eligible households receive $0 federal credit for cash/loan purchases. Propel and Section 48 TPO are your $0-down pathways. Full details
Maine solar programs (NEB, tax exemptions) are available to all homeowners. Propel has no income requirement. Income-specific programs focus on heat pump rebates, weatherization, and energy assistance.
Efficiency Maine uses State Median Income (SMI) for heat pump rebates. MaineHousing uses Federal Poverty Level (FPL) for LIHEAP and WAP. Community solar LMI programs use AMI.
| HH Size | 150% FPL | 200% FPL | 80% AMI |
|---|---|---|---|
| 1 | $22,590 | $30,120 | $51,500 |
| 2 | $30,660 | $40,880 | $58,850 |
| 3 | $38,730 | $51,640 | $66,200 |
| 4 | $46,800 | $62,400 | $73,550 |
| 5 | $54,870 | $73,160 | $79,450 |
| 6 | $62,940 | $83,920 | $85,350 |
Eff. Maine HP: 80% SMI (low), 80-150% SMI (moderate). LIHEAP/WAP: 200% FPL. Community solar LMI: 80% AMI.
May also qualify if enrolled in:
These programs are available to all Maine homeowners. Propel is especially valuable for income-eligible households who need $0-down options.
Maine advantage: Propel's $0-down structure is particularly valuable for income-eligible households. Combined with NEB 1:1 net metering and oil displacement ($3.82/gal), solar makes strong economic sense in Maine even without state solar rebates.
Four key pathways help income-eligible Maine households access solar energy. Propel provides the strongest $0-down option, while Efficiency Maine and MaineHousing support energy reduction.
Propel is available in Maine and provides $0-down solar financing with FEOC-compliant Silfab 440W panels. The third-party financing company claims the Section 48 commercial ITC (30% base) and passes savings through as lower monthly payments. This is the ideal pathway for income-eligible Maine households who want rooftop solar without any upfront cost.
Eligibility
Available to Maine homeowners. No income restriction. Requires credit approval. Propel forces Silfab 440W panels (FEOC required for Section 48 compliance).
How to Access
Contact NuWatt Energy to request a Propel quote. We handle the entire process including system design, permitting, installation, and interconnection.
Example Value
For a 9 kW system: typical monthly payment $95-$125 vs. CMP bill of $200-$250/month. Net savings of $900-$1,500/year with $0 upfront investment.
While focused on heat pumps rather than solar, Efficiency Maine income-eligible rebates demonstrate the state infrastructure for LMI programs. Moderate-income households receive $2,000/unit, low-income households receive $3,000/unit (max 3 units). Pairing heat pumps with solar maximizes energy savings.
Eligibility
Low-income: at or below 80% State Median Income. Moderate-income: 80-150% SMI. Max 3 units per household.
How to Access
Apply through an Efficiency Maine registered heat pump installer. Income documentation required for the income-eligible tier.
Example Value
Low-income: $9,000 total rebate (3 units x $3,000). When paired with solar, total energy bill reduction can reach 60-80% vs. oil heat + grid electricity.
MaineHousing administers LIHEAP fuel assistance, Weatherization Assistance Program (WAP), and other energy programs for income-eligible households. WAP provides free insulation, air sealing, and heating system improvements. These services prepare your home for solar by reducing energy waste first.
Eligibility
LIHEAP: at or below 200% FPL. WAP: at or below 200% FPL. Some programs based on 80% AMI.
How to Access
Contact MaineHousing at 207-626-4600 or your local Community Action agency. Apply for LIHEAP October through May.
Example Value
LIHEAP: $500-$3,000/year fuel assistance. WAP: $7,000-$12,000 average weatherization value per home. Reduces energy burden significantly before solar.
Maine community solar is growing, with programs offering bill credits from off-site solar farms. Some projects include LMI carve-outs. Community solar is ideal for renters, condo owners, and homeowners with shaded roofs or who cannot afford rooftop solar. LD 1777 changed community solar compensation but rooftop NEB 1:1 remains intact.
Eligibility
Any CMP or Versant customer with an active account. No income requirement for basic subscriptions. Some LMI-specific programs available.
How to Access
Search for Maine community solar projects in your utility territory. Sign a subscription agreement with no upfront cost.
Example Value
For a $250/month electric bill: 10% savings = $300/year. LMI programs may offer up to 20% discount on subscription fees.
Maine solar costs $2.91-$3.19 per watt in 2026. An average 9 kW system runs $26,190-$28,710 before incentives. With tax exemptions and Propel $0-down, here is what income-eligible households face.
Property tax 100% exempt statewide. Sales tax exemption unverified. Or choose Propel for $0 down.
Instead of $25,940 cash, Propel gives you solar for $0 down with monthly payments of $95-$125. The financing company claims the Section 48 ITC. You save immediately vs. your CMP/Versant bill.
Payback: ~8 years (cash)
Payback: ~7 years (cash)
Versant territory: $94,250 over 25 years. Factor in annual utility rate increases (~3%/year) for even higher lifetime value.
| System Size | Cost Range | After Sales Tax | Propel Monthly |
|---|---|---|---|
| 5 kW | $14,550-$15,950 | $13,750-$15,150 | $55-$70 |
| 7 kW | $20,370-$22,330 | $19,250-$21,210 | $75-$95 |
| 9 kW | $26,190-$28,710 | $24,680-$27,200 | $95-$125 |
| 11 kW | $32,010-$35,090 | $30,167-$33,247 | $120-$150 |
| 13 kW | $37,830-$41,470 | $35,653-$39,293 | $140-$175 |
Costs based on $2.91-$3.19/W range. Sales tax exemption unverified. Propel monthly estimates based on typical Section 48 TPO pricing. Production: ~1,150 kWh/kW ME average.
With Section 25D expired, Maine homeowners pay the full system cost for cash purchases. Propel provides the strongest $0-down pathway by leveraging the Section 48 commercial ITC through third-party ownership.
Propel is available in Maine and provides $0-down solar using FEOC-compliant Silfab 440W panels. The financing company claims the Section 48 commercial ITC (30% base) and passes savings through as lower monthly payments. You save from day one without any capital investment. This is particularly valuable for Maine households struggling with high oil heating costs.
Section 48/48E allows commercial entities to claim a 30% Investment Tax Credit on solar installations. Propel uses this mechanism: the financing company owns the system, claims the ITC, and passes savings to you as lower monthly payments. This is the same structure as a PPA/lease but with FEOC-compliant panels (required for Section 48 after the OBBBA rules).
Maine provides two tax exemptions for solar that benefit all homeowners regardless of income. Both are statewide and permanent.
The 5.5% sales tax exemption for solar equipment is not confirmed from official Maine statute. Verify with your installer whether sales tax applies to your purchase.
Applied at purchase. One-time savings.
Solar installations are fully excluded from property tax assessment statewide. Adding solar does NOT increase your assessed home value. Permanent exemption with no expiration date and no town-by-town adoption required.
25-year value: ~$11,450. Statewide and permanent.
Oil displacement value: For Maine households heating with oil ($3.82/gal), adding heat pumps powered by solar eliminates heating fuel costs entirely. This is often the largest financial benefit of solar in Maine, exceeding all tax exemptions combined. Solar + Heat Pump Guide
If rooftop solar is not an option, Maine community solar provides bill savings with zero equipment on your property. Some projects include LMI carve-outs with enhanced benefits.
Subscribe to a local solar project
Sign up for a share of a community solar farm in your CMP or Versant territory.
Solar farm generates electricity
The off-site solar installation feeds clean electricity into the grid.
Receive bill credits
You receive bill credits on your CMP or Versant statement for your share of production.
Save on your electric bill
Net savings of 5-15% on your electricity costs with no upfront investment.
Note: LD 1777 changed community solar compensation in Maine, but rooftop solar NEB 1:1 credit remains intact. Community solar credits may be lower than rooftop NEB.
Follow these five steps to access solar as an income-eligible household in Maine. Propel simplifies the process with $0 down.
Determine if your household qualifies for Efficiency Maine income-eligible programs (80-150% SMI for moderate, below 80% SMI for low-income), MaineHousing LIHEAP (200% FPL), or WAP weatherization (200% FPL). Even if you are above income thresholds, Propel and community solar have no income requirements.
If income-eligible, contact MaineHousing (207-626-4600) or your local Community Action agency for WAP weatherization services. Free insulation and air sealing can reduce your heating costs by 25-40% and improve solar system sizing accuracy. Maine homes lose significant heat through poor insulation, especially older housing stock.
Contact NuWatt Energy for a Propel quote. Propel provides $0-down solar financing with FEOC-compliant Silfab 440W panels in Maine. The third-party financing company claims the Section 48 ITC (30% base, deadline July 4, 2026). You save from day one with no upfront cost. Mention if you are income-eligible for potential additional assistance.
If you heat with oil ($3.82/gal) or propane ($3.38/gal), consider pairing solar with Efficiency Maine income-eligible heat pump rebates ($2,000-$3,000/unit). A solar-plus-heat-pump combination can reduce total energy costs by 60-80%. This is particularly impactful for Maine households with high heating bills.
System is installed and your installer submits Net Energy Billing (NEB) interconnection paperwork to CMP or Versant. Rooftop solar receives 1:1 retail credit under NEB. For Propel systems, the financing company handles all paperwork. Versant customers benefit from higher rates ($0.32/kWh) making solar savings even larger.
MaineHousing
mainehousing.org
LIHEAP, WAP, energy assistance
Efficiency Maine
efficiencymaine.com
Heat pump rebates, income-eligible
NuWatt Energy (Propel)
nuwattenergy.com/propel
$0-down Propel solar quotes
Common questions about income-eligible solar programs in Maine for 2026.
Maine does not have a dedicated income-restricted solar incentive like CT RRES adder or MA SMART low-income adder. However, Propel $0-down financing is available in Maine and requires no income qualification. Efficiency Maine provides income-eligible heat pump rebates ($2,000-$3,000/unit) that pair well with solar. MaineHousing offers LIHEAP and WAP weatherization. NEB 1:1 net metering and statewide tax exemptions benefit all homeowners.
No. The federal residential solar tax credit (Section 25D) expired December 31, 2025 for all homeowners regardless of income. There is $0 federal credit for cash or loan solar purchases. The only way to indirectly benefit from a federal credit is through Propel or another PPA/lease, where the third-party system owner claims the 30% commercial ITC under Section 48/48E for projects beginning construction before July 4, 2026. This benefit is passed through as lower monthly payments.
Propel provides $0-down solar financing in Maine. A third-party financing company owns the solar system, installs FEOC-compliant Silfab 440W panels on your roof, and claims the Section 48 commercial ITC (30% base). You pay a fixed monthly amount that is lower than your current electric bill, saving money from day one. No income requirement, but credit approval is needed. The Section 48 deadline is July 4, 2026 for projects beginning construction.
Net Energy Billing (NEB) is Maine net metering policy. For rooftop solar, NEB provides 1:1 retail rate credit. This means every kWh your solar produces offsets a kWh you would have purchased at the full retail rate ($0.27/kWh for CMP, $0.32/kWh for Versant). This applies equally to all homeowners regardless of income. LD 1777 changed only community solar compensation, not rooftop solar. Versant customers benefit more due to higher rates.
Yes. Renters can subscribe to community solar with no rooftop installation and no upfront cost. Maine community solar is growing, with some projects including LMI carve-outs for qualifying low-income subscribers. You receive bill credits on your CMP or Versant statement for your share of production. You just need an active utility account. Typical savings are 5-15% on your electric bill.
CMP serves approximately 70% of Maine at $0.27/kWh. Versant serves approximately 30% at $0.32/kWh. Versant customers save more with solar because NEB credits at 1:1 retail are worth $0.32/kWh instead of $0.27/kWh. For a 9 kW system producing 10,350 kWh/year, annual NEB credits are $2,795 (CMP) vs. $3,312 (Versant). Versant territory solar payback is 12-14 years vs. 15-17 years for CMP.
Efficiency Maine provides enhanced heat pump rebates for income-eligible households. Low-income (below 80% SMI): $3,000/unit. Moderate-income (80-150% SMI): $2,000/unit. Maximum 3 units per household. Standard rebate is $1,000/unit. While this is for heat pumps, not solar, pairing heat pumps with solar eliminates heating oil costs ($3.82/gal) and maximizes total energy savings. Over 60% of Maine homes heat with oil.
Yes. Maine's 100% property tax exemption is statewide and permanent, saving approximately $458/year based on average Maine property tax rates. It has no income requirement or expiration date. The sales tax exemption status is unverified — verify with your installer whether Maine's 5.5% sales tax applies to solar equipment.
MaineHousing does not directly fund solar installations but provides critical supporting programs. LIHEAP fuel assistance ($500-$3,000/year) reduces immediate energy burden. WAP weatherization ($7,000-$12,000 average value) prepares homes for solar by reducing energy waste. MaineHousing also connects income-eligible households to Efficiency Maine heat pump rebates and community solar programs. Contact MaineHousing at 207-626-4600.
Propel relies on the Section 48/48E commercial ITC, which requires projects to begin construction before July 4, 2026. After this date, the 30% ITC may not be available, and Propel pricing would increase or the program may not be offered. If you are considering Propel in Maine, act before mid-2026 to lock in the current pricing structure that benefits from the 30% ITC.
ME Solar Guide 2026
Complete overview of solar programs, costs, and incentives in ME.
ME Solar Panel Cost 2026
Detailed cost breakdown: CMP vs Versant territories.
Section 48 Homeowner Guide
How third-party ownership (including Propel) makes solar $0 down.
Maine Community Solar
No-rooftop solar option for renters and shaded properties.
Solar + Heat Pump in ME
Pair solar with heat pumps to eliminate oil heating costs.
Propel Solar Program
$0 down solar with FEOC panels. Available in ME and TX.
Propel provides $0-down solar for Maine homeowners. Pair with Efficiency Maine heat pump rebates to eliminate oil heating costs. Act before the Section 48 deadline (July 4, 2026).
Free, no-obligation assessment. We will help you find the best solar pathway for your situation in Maine.