Portland, ME solar installation & market data
Updated December 23, 2024Older data · growth withheld By The SolarDNA Data Team
Portland has 585 solar installations across 6 zip codes at a median installed cost of $4.01/W, recent growth not yet measurable, and an installs-weighted Market Score of 40.
Active installations
585
Zip markets
6
Median cost
$4.01/W
12-mo growth
—
Installers active
0
City Market Score
Good · installs-weighted across 6 zips
Best zip in Portland scores higher than 37% of U.S. zip markets.
Versus Maine
How Portland compares with the state
Installed cost
$0.30/W above
state median $3.71/W
Market score
40 vs 36
Maine scores 36
Share of state installs
3.47%
of 16.9K tracked statewide
Battery attach
0.0%
state 0.6%
Statewide momentum
▼ 3.9%
residential solar added in Maine, 12 months through Jul 2026
Statewide market
22.5K systems
4.8% of homes · utility-reported through Jul 2026
Growth & pricing
Portland by year
143 installs in the trailing twelve months vs 84 before
Installations by year
Median installed cost, $/W DC by year