Washington County, ME solar installation & market data
Updated October 8, 2013Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Washington County has 9 solar installations across 4 zip codes at a median installed cost of $3.66/W, recent growth not yet measurable, and an installs-weighted Market Score of 41.
Active installations
9
Zip markets
4
Median cost
$3.66/W
12-mo growth
—
Installers active
0
County Market Score
Good · installs-weighted across 4 zips
Best zip in Washington County scores higher than 63% of U.S. zip markets.
Versus Maine
How Washington County compares with the state
Installed cost
$0.05/W below
state median $3.71/W
Market score
41 vs 36
Maine scores 36
Share of state installs
0.05%
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
Washington County by year
8 installs in the trailing twelve months vs 1 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Washington County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|