Maine Solar Panel Savings Calculator

Maine Solar Panel Savings Overview

Maine receives an average of 4 peak sun hours per day, providing a solid foundation for residential solar energy. With electricity rates averaging 22.7¢ per kWh — well above the national average of about 16¢/kWh — solar panels offer significant savings potential. The typical Maine homeowner with a 6kW system can expect to save approximately $1,720 per year.

Solar Energy Production in Maine

A standard 6kW residential solar panel system in Maine produces approximately 7,008 kWh per year. This accounts for a system efficiency factor of 80%, which includes panel degradation, inverter losses, and temperature effects. While 4 peak sun hours is modest compared to sunbelt states, modern high-efficiency panels can still produce meaningful energy savings in Maine.

Maine Electricity Rates and Solar Context

The average residential electricity rate in Maine is 22.7¢ per kWh according to EIA data. This rate is near the national average. Combined with Maine's solar resources, homeowners can expect a payback period of about 9 years. With utility rates increasing annually, your solar savings grow each year.

Maine Solar Incentive Programs

Net energy billing. Property tax exemption. Federal 30% ITC. All Maine residents are eligible for the federal 30% Investment Tax Credit (ITC), which reduces the cost of a solar system by 30% of the total installed price. Maine also offers full retail net metering, allowing homeowners to earn credits for excess solar energy sent back to the grid.

Net Metering in Maine

Maine has full retail net metering, which is a significant financial benefit for solar homeowners. Under full retail net metering, you receive credit at the full retail electricity rate for every kilowatt-hour of excess solar energy you export to the grid. This is the most favorable policy for solar homeowners.

Best Cities for Solar in Maine

The best cities for solar panels in Maine include Portland, Lewiston, Bangor, South Portland, Auburn. Solar production can vary by location within the state due to differences in cloud cover, local shading, and microclimates. Southern-facing roofs with minimal shading produce the most energy. Homeowners in Portland and Lewiston can typically expect production close to the state average of 4 peak sun hours per day.

How Maine Compares to Neighboring States

Compared to neighboring states, Maine (22.7¢/kWh, 4 sun hours) has comparable sun exposure and has lower electricity rates. See how solar savings compare in New Hampshire, Vermont, and Massachusetts.