Swansea, MA solar installation & market data
Updated November 18, 2021Older data · growth withheld By The SolarDNA Data Team
Swansea has 745 solar installations across 1 zip code at a median installed cost of $4.23/W, recent growth not yet measurable, and an installs-weighted Market Score of 48.
Active installations
745
Zip markets
1
Median cost
$4.23/W
12-mo growth
—
Installers active
12
City Market Score
Great · installs-weighted across 1 zips
Best zip in Swansea scores higher than 82% of U.S. zip markets.
Versus Massachusetts
How Swansea compares with the state
Installed cost
$0.06/W above
state median $4.17/W
Market score
48 vs 58
Massachusetts scores 58
Share of state installs
0.52%
of 142.6K tracked statewide
Battery attach
1.3%
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
Swansea by year
71 installs in the trailing twelve months vs 70 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Swansea
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 182 | 1 | 1 | $4.24 |
| 2 | TESLA | 175 | 0 | 1 | $5.15 |
| 3 | TRINITY SOLAR | 76 | 0 | 1 | $3.95 |
| 4 | SUNGEVITY | 38 | 0 | 1 | $3.53 |
| 5 | SOUTHCOAST GREENLIGHT | 27 | 0 | 1 | $3.51 |
| 6 | ISAKSEN SOLAR | 26 | 0 | 1 | $3.91 |
| 7 | SUMMIT ENERGY GROUP | 15 | 0 | 1 | $4.00 |
| 8 | INO ELECTRIC SERVICE | 14 | 0 | 1 | $3.27 |
| 9 | ROOFTOP POWER | 13 | 1 | 1 | $4.34 |
| 10 | ROOF DIAGNOSTICS SOLAR | 12 | 0 | 1 | $3.55 |
| 11 | NEXT STEP LIVING | 10 | 0 | 1 | $6.99 |
| 12 | BAY STATE SOLAR | 9 | 0 | 1 | $4.10 |
Zip markets
Zips in Swansea
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 02777 | 745 | $4.23 | 48 B |