How much do solar panels cost in Maine?

In Maine, solar panel installation averages about $2.85 per watt. For a typical $150 monthly electric bill, a 5 kW system (13 panels) costs approximately $14,820 before incentives, or $10,374 after the 30% federal tax credit.

Is solar worth it in Maine?

Yes — with 4.55 peak sun hours per day and 28.4¢/kWh electricity rates, solar in Maine typically pays for itself in 5.5 years. The rating is Excellent.

Solar Panel Cost & Savings in Maine (2026)

Quick Maine Solar Facts

4.55

Peak Sun Hours/Day

28.4¢

Electricity Rate

$2.85

Install Cost/Watt

5.5 yrs

Avg Payback

In Maine, a typical 5 kW system (13 panels) costs approximately $10,374 after the 30% federal tax credit. With 4.55 peak sun hours per day and 28.4¢/kWh electricity rates, annual savings average $1,890 with a payback period of 5.5 years. Rating: Excellent. Source: NREL PVWatts v8 (PSH), US EIA July 2026 (rates), SEIA/EnergySage Q1 2026 (costs).

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How many solar panels do I need in Maine?

For a typical home with a $150 monthly electric bill in Maine, you need about 13 panels (5.2 kW system). Your exact number depends on your specific monthly usage and roof orientation.

What solar incentives are available in Maine?

Every US homeowner qualifies for the 30% federal Investment Tax Credit (ITC) through 2032. Many states also offer additional incentives — check our main calculator's Incentives tab for Maine-specific rebates, tax credits, and net metering policies.

Is Maine a good state for solar?

Maine has 4.55 peak sun hours per day (U.S. average: 4.98). With electricity at 28.4¢/kWh (U.S. average: 18.83¢/kWh), solar in Maine typically pays for itself in 5.5 years. Overall rating: Excellent.