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2026 Solar Pricing Data
Average installed price of $2.91/W — a typical 11.01 kW system costs $32,039 before incentives.
EnergySage $/W
$2.91
Avg System Cost
$32,039
Payback Period
16.8 yrs
25-Year Savings
$29,202
Estimated costs based on $2.91/W average before incentives.
| System Size (kW) | Number of Panels | Estimated Cost |
|---|---|---|
| 3 kW | ~7 panels | $8,730 |
| 4 kW | ~10 panels | $11,640 |
| 5 kW | ~12 panels | $14,550 |
| 6 kW | ~15 panels | $17,460 |
| 7 kW | ~17 panels | $20,370 |
| 8 kW | ~20 panels | $23,280 |
| 9 kW | ~22 panels | $26,190 |
| 10 kW | ~25 panels | $29,100 |
| 11 kW | ~27 panels | $32,010 |
| 12 kW | ~30 panels | $34,920 |
| 13 kW | ~32 panels | $37,830 |
| 14 kW | ~35 panels | $40,740 |
Prices vary based on equipment, installer, and system complexity.
For a typical 11.01 kW system in Maine
Multi-plane roofs, steep pitches, tile or slate surfaces, and older roofs needing reinforcement all increase labor and mounting costs.
Larger systems have a lower per-watt cost thanks to volume discounts. A 12 kW system typically costs less per watt than a 5 kW system.
Premium panels (REC, Maxeon) and microinverters (Enphase) cost more upfront but deliver better long-term performance and warranties.
Permit fees, inspection requirements, and interconnection timelines vary by municipality in Maine and can affect total project cost.
The Section 25D Residential Clean Energy Credit expired December 31, 2025. Homeowner cash or loan purchases receive $0 federal tax credit in 2026. Third-party owned systems (solar lease or PPA) still qualify for the 30% ITC under Section 48/48E.
Maine does not currently offer a state-level solar incentive or tax credit. However, a solar lease or PPA lets you go solar with $0 down while the system owner claims the 30% commercial ITC under Section 48/48E — savings that get passed to you through lower rates. This is often the best path for Maine homeowners in 2026.
Payback Period
16.8 years
Avg Electricity Rate
$0.18/kWh
25-Year Net Savings
$29,202
A typical solar system in Maine pays for itself in approximately 16.8 years.Maine electricity rates average $0.18/kWh, and with rates historically rising 3–5% annually, your solar investment becomes more valuable each year. Over a 25-year system lifetime, Maine homeowners can expect approximately $29,202 in net savings after system costs. Once the system is paid off, your electricity is essentially free for the remaining 15–20 years of the panel warranty.
Pricing data sourced from the EnergySage Marketplace (January 2026). EnergySage aggregates quotes from hundreds of pre-screened installers nationwide. NuWatt pricing ($3.1/W in Maine) reflects our premium equipment packages with Enphase microinverters and Tier 1 panels.
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