Portland, ME 04103 solar market data
Updated December 11, 2024Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Portland 04103 has 226 solar installations at a median installed cost of $3.90/W, recent growth not yet measurable, and a Market Score of 41 — higher than 37% of U.S. zip markets.
Versus Maine
How 04103 compares with the state
Installed cost
$0.19/W above
state median $3.71/W
Market score
41 vs 36
Maine scores 36
Share of state installs
1.34%
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
04103 by year
74 installs in the trailing twelve months vs 40 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 04103
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| No installer has recorded systems here yet. | |||||
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 04102 Portland | 3.1 km | 104 | $4.57 | 37 |
| 04101 Portland | 3.8 km | 186 | $3.83 | 41 |
| 04104 Portland | 3.9 km | 66 | — | 38 |
| 04105 Falmouth | 5.5 km | 358 | $3.56 | 43 |
| 04092 Westbrook | 5.7 km | 156 | $3.99 | 40 |
| 04106 South Portland | 6.3 km | 236 | $3.72 | 42 |
Same city
Other zips in Portland
Equipment
What gets installed in 04103
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA52.0%
REC GROUP28.0%
SOLARIA CORPORATION8.0%
PANASONIC CORPORATION OF NORTH AMERICA4.0%
SUNIVA4.0%
Inverters
Frequently asked
Quick answers about 04103
How many solar installations are there in 04103?
SolarDNA counts 226 active solar installations in Portland 04103, 213 of them residential, with data through December 11, 2024.
How much does solar cost in 04103?
The median residential system in 04103 cost $3.90 per watt over the trailing twelve months, $0.19/W above the Maine median.
Is solar growing in 04103?
Recent growth cannot be measured yet for 04103: insufficient recent data (data runs through December 11, 2024).
Who installs solar in 04103?
No installer has enough recorded systems in 04103 to rank yet.
Is 04103 a good market for solar sales?
04103 scores 41 out of 100 (Good, higher than 37% of U.S. zip markets). With under 500 installations the score is provisional.