Solar in Portland, ME
Everything you need to know about going solar in Portland — local sun hours, electric rates, installation costs, and available programs.
4 hrs/day
Peak Sun Hours
22¢/kWh
Avg Electric Rate
$3.00/W
Solar Cost/Watt
Central Maine Power
Top Utility
Sample 8 kW System
$16,800
After 30% ITC
($24,000 before)
$2,570/yr
Est. Annual Savings
11,680 kWh/yr
6.5 yrs
Est. Payback
Estimates based on local averages for an 8 kW system. Actual results depend on roof, shading, utility plan, and consumption.
Local Programs
Net MeteringAvailable
Community SolarAvailable
High rates and strong net metering make solar attractive despite northern location.