Billerica, MA 01821 solar market data
Updated March 7, 2023Older data · growth withheld By The SolarDNA Data Team
Billerica 01821 has 789 solar installations at a median installed cost of $4.28/W, recent growth not yet measurable, and a Market Score of 48 — higher than 82% of U.S. zip markets.
Versus Massachusetts
How 01821 compares with the state
Installed cost
$0.11/W above
state median $4.17/W
Market score
48 vs 58
Massachusetts scores 58
Share of state installs
0.55%
of 142.6K tracked statewide
Battery attach
2.9%
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
01821 by year
30 installs in the trailing twelve months vs 47 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 01821
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 352 | 3 | 7.83 | $4.28 |
| 2 | TESLA | 134 | 2 | 7.74 | $5.15 |
| 3 | TRINITY SOLAR | 60 | 0 | 8.75 | $3.65 |
| 4 | BOSTON SOLAR | 22 | 0 | 10.11 | $3.53 |
| 5 | SUNGEVITY | 14 | 0 | 8.01 | $3.62 |
| 6 | NEXT STEP LIVING | 13 | 0 | 5.23 | $6.56 |
| 7 | ROOF DIAGNOSTICS SOLAR | 11 | 0 | 7.92 | $3.57 |
| 8 | 1ST LIGHT ENERGY | 10 | 0 | 6.28 | $4.10 |
| 9 | ACE RESIDENTIAL SOLAR | 8 | 0 | 8.53 | $3.50 |
| 10 | VISION SOLAR | 8 | 0 | 9.64 | $4.26 |
| 11 | REVOLUSUN | 7 | 0 | 8.25 | $4.10 |
| 12 | RGS ENERGY | 7 | 0 | 6.86 | $4.03 |
Equipment
What gets installed in 01821
Share of systems with a recorded brand
Modules
TRINA SOLAR28.4%
JINKO SOLAR20.3%
CANADIAN SOLAR8.3%
QCELLS NORTH AMERICA7.8%
LG ELECTRONICS7.7%
Inverters
SOLAREDGE79.7%
ENPHASE ENERGY6.4%
DELTA ELECTRONICS2.2%
SMA AMERICA2.2%
YASKAWA SOLECTRIA SOLAR2.2%
Frequently asked
Quick answers about 01821
How many solar installations are there in 01821?
SolarDNA counts 789 active solar installations in Billerica 01821, 772 of them residential, with data through March 7, 2023.
How much does solar cost in 01821?
The median residential system in 01821 cost $4.28 per watt over the trailing twelve months, $0.11/W above the Massachusetts median.
Is solar growing in 01821?
Recent growth cannot be measured yet for 01821: insufficient recent data (data runs through March 7, 2023).
Who installs solar in 01821?
SUNRUN, TESLA, TRINITY SOLAR lead the 77 installers with systems in 01821. The full comp set is above.
Is 01821 a good market for solar sales?
01821 scores 48 out of 100 (Great, higher than 82% of U.S. zip markets).