Dorchester, MA 02121 solar market data
Updated July 12, 2024Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Dorchester 02121 has 145 solar installations at a median installed cost of $4.12/W, recent growth not yet measurable, and a Market Score of 46 — higher than 72% of U.S. zip markets.
Versus Massachusetts
How 02121 compares with the state
Installed cost
$0.05/W below
state median $4.17/W
Market score
46 vs 58
Massachusetts scores 58
Share of state installs
0.10%
of 142.6K tracked statewide
Battery attach
0.7%
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
02121 by year
5 installs in the trailing twelve months vs 14 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 02121
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 37 | 8 | 6.96 | $3.46 |
| 2 | TESLA | 28 | 0 | 6.42 | $5.10 |
| 3 | MASSAMERICAN ENERGY | 16 | 0 | 40.62 | $3.30 |
| 4 | FREEDOM FOREVER | 9 | 1 | 7.67 | $4.24 |
| 5 | SOLECT ENERGY | 8 | 0 | 6 | $3.98 |
| 6 | BRIGHT PLANET SOLAR | 5 | 1 | 5.49 | $4.21 |
| 7 | TRINITY SOLAR | 5 | 0 | 9.31 | $4.45 |
| 8 | ROOF DIAGNOSTICS SOLAR | 3 | 0 | 6.53 | $4.05 |
| 9 | S WOOD ELECTRIC SERVICE | 3 | 0 | 18.5 | $2.18 |
| 10 | SOLAR FIVE | 3 | 0 | 9.8 | $4.76 |
| 11 | VISION SOLAR | 3 | 0 | 8.53 | $3.44 |
| 12 | SUNBUG SOLAR | 2 | 1 | 19.3 | $3.61 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 02125 Dorchester | 0.0 km | 149 | $4.37 | 45 |
| 02122 Dorchester | 0.0 km | 133 | $4.49 | 44 |
| 02124 Dorchester Center | 0.7 km | 452 | $4.15 | 47 |
| 02126 Mattapan | 3.1 km | 501 | $4.38 | 47 |
| 02130 Jamaica Plain | 3.5 km | 347 | $4.40 | 46 |
| 02119 Roxbury | 3.5 km | 139 | $4.13 | 46 |
Same city
Other zips in Dorchester
Equipment
What gets installed in 02121
Share of systems with a recorded brand
Modules
TRINA SOLAR20.0%
HANWHA SOLAR CANADA11.0%
LONGI GREEN ENERGY TECHNOLOGY11.0%
QCELLS NORTH AMERICA6.9%
REC GROUP6.9%
Inverters
SOLAREDGE75.0%
ENPHASE ENERGY11.0%
DELTA ELECTRONICS5.1%
POWER-ONE3.7%
SMA AMERICA2.2%
Frequently asked
Quick answers about 02121
How many solar installations are there in 02121?
SolarDNA counts 145 active solar installations in Dorchester 02121, 140 of them residential, with data through July 12, 2024.
How much does solar cost in 02121?
The median residential system in 02121 cost $4.12 per watt over the trailing twelve months, $0.05/W below the Massachusetts median.
Is solar growing in 02121?
Recent growth cannot be measured yet for 02121: insufficient recent data (data runs through July 12, 2024).
Who installs solar in 02121?
SUNRUN, TESLA, MASSAMERICAN ENERGY lead the 30 installers with systems in 02121. The full comp set is above.
Is 02121 a good market for solar sales?
02121 scores 46 out of 100 (Great, higher than 72% of U.S. zip markets). With under 500 installations the score is provisional.