Westport, MA solar installation & market data
Updated October 20, 2023Older data · growth withheld By The SolarDNA Data Team
Westport has 1,025 solar installations across 1 zip code at a median installed cost of $4.28/W, recent growth not yet measurable, and an installs-weighted Market Score of 50.
Active installations
1,025
Zip markets
1
Median cost
$4.28/W
12-mo growth
—
Installers active
12
City Market Score
Great · installs-weighted across 1 zips
Best zip in Westport scores higher than 87% of U.S. zip markets.
Versus Massachusetts
How Westport compares with the state
Installed cost
$0.11/W above
state median $4.17/W
Market score
50 vs 58
Massachusetts scores 58
Share of state installs
0.72%
of 142.6K tracked statewide
Battery attach
1.8%
state 3.1%
Statewide momentum
▲ 22.8%
residential solar added in Massachusetts, 12 months through Jul 2026
Statewide market
233.7K systems
13.3% of homes · utility-reported through Jul 2026
Growth & pricing
Westport by year
44 installs in the trailing twelve months vs 66 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Westport
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 263 | 14 | 1 | $4.45 |
| 2 | TESLA | 189 | 2 | 1 | $5.15 |
| 3 | ISAKSEN SOLAR | 66 | 15 | 1 | $3.92 |
| 4 | TRINITY SOLAR | 63 | 0 | 1 | $4.10 |
| 5 | SUNGEVITY | 56 | 0 | 1 | $3.78 |
| 6 | RGS ENERGY | 22 | 0 | 1 | $4.03 |
| 7 | 1ST LIGHT ENERGY | 17 | 0 | 1 | $4.19 |
| 8 | FREEDOM FOREVER | 15 | 6 | 1 | $3.63 |
| 9 | ROOF DIAGNOSTICS SOLAR | 15 | 0 | 1 | $3.68 |
| 10 | B SOLAR | 12 | 0 | 1 | $3.75 |
| 11 | CS ENERGY | 12 | 0 | 1 | $1.56 |
| 12 | RELIABLE SOLAR SOLUTIONS | 12 | 0 | 1 | $3.50 |
Zip markets
Zips in Westport
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 02790 | 1,025 | $4.28 | 50 B |