Solar costs vary 10–20% within a single state based on local permitting, utility rates, labor markets, and city-specific incentives. Here is a city-by-city breakdown for your state.
Maine Solar Cost Overview
Maine solar costs range from $2.91–$3.19/W. CMP territory (~70%, $0.27/kWh) and Versant (~30%, $0.32/kWh). 1:1 net energy billing for rooftop solar. No state rebate, no federal 25D ITC. Property + sales tax exempt statewide.
Maine statewide average: $2.91/W (EnergySage) • NuWatt: $3.10/W • Avg utility rate: $0.27/kWh
City-by-City Cost Breakdown
| City | $/W Range | 10kW System | Utility Rate | Permitting | Local Incentive |
|---|---|---|---|---|---|
| Portland | $2.95–3.19 | $27,630 | $0.27 | 2-3 weeks | — |
| Lewiston | $2.91–3.12 | $27,135 | $0.27 | 2-3 weeks | — |
| Bangor | $2.91–3.15 | $27,270 | $0.32 | 2-3 weeks | — |
| South Portland | $2.95–3.19 | $27,630 | $0.27 | 2-3 weeks | — |
| Auburn | $2.91–3.12 | $27,135 | $0.27 | 2-3 weeks | — |
| Biddeford | $2.95–3.19 | $27,630 | $0.27 | 2-3 weeks | — |
| Augusta | $2.91–3.10 | $27,045 | $0.27 | 2-3 weeks | — |
| Scarborough | $2.95–3.19 | $27,630 | $0.27 | 2-3 weeks | — |
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Why Costs Vary Across Maine
- Permitting: Cities like Portland may charge more and take longer than smaller towns.
- Utility rates: Higher rates ($0.32/kWh vs $0.27/kWh) mean faster payback in some cities.
- Labor costs: Metro areas command higher installation labor rates.
- Local incentives: Some cities offer additional programs on top of state incentives.
Get an Estimate for Your City
These are average ranges. Your actual cost depends on your specific roof, shading, system size, and equipment choices. Get an instant estimate for your exact address:
Solar Costs in Other States
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