Waltham, MA 02451 solar market data
Updated December 28, 2023Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Waltham 02451 has 452 solar installations at a median installed cost of $4.04/W, recent growth not yet measurable, and a Market Score of 48 — higher than 79% of U.S. zip markets.
Versus Massachusetts
How 02451 compares with the state
Installed cost
$0.13/W below
state median $4.17/W
Market score
48 vs 58
Massachusetts scores 58
Share of state installs
0.32%
of 142.6K tracked statewide
Battery attach
2.2%
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
02451 by year
36 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 02451
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 90 | 2 | 6.04 | $5.15 |
| 2 | SUNRUN | 84 | 15 | 8.05 | $3.54 |
| 3 | TRINITY SOLAR | 51 | 0 | 7.52 | $3.61 |
| 4 | BOSTON SOLAR | 18 | 2 | 7.28 | $3.86 |
| 5 | NEXT STEP LIVING | 18 | 0 | 4.91 | $7.57 |
| 6 | 1ST LIGHT ENERGY | 16 | 0 | 13.93 | $3.79 |
| 7 | REVOLUSUN | 12 | 1 | 8.32 | $3.90 |
| 8 | SUNGEVITY | 12 | 0 | 6.98 | $3.85 |
| 9 | SUNBUG SOLAR | 11 | 1 | 8.98 | $4.00 |
| 10 | FREEDOM FOREVER | 9 | 6 | 9.78 | $3.94 |
| 11 | ROOF DIAGNOSTICS SOLAR | 8 | 0 | 5.31 | $4.54 |
| 12 | SUNLIGHT SOLAR ENERGY | 7 | 0 | 6.35 | $4.53 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 02452 Waltham | 2.3 km | 199 | $4.02 | 47 |
| 02453 Waltham | 3.9 km | 337 | $4.23 | 46 |
| 02421 Lexington | 5.1 km | 528 | $3.89 | 49 |
| 02478 Belmont | 5.5 km | 310 | $3.70 | 49 |
| 02465 West Newton | 5.7 km | 278 | $4.06 | 47 |
| 02460 Newtonville | 6.0 km | 143 | $4.27 | 45 |
Same city
Other zips in Waltham
Equipment
What gets installed in 02451
Share of systems with a recorded brand
Modules
TRINA SOLAR21.6%
LG ELECTRONICS14.2%
QCELLS NORTH AMERICA12.2%
CANADIAN SOLAR7.4%
JINKO SOLAR7.0%
Inverters
SOLAREDGE69.3%
ENPHASE ENERGY11.7%
DELTA ELECTRONICS5.8%
SMA AMERICA4.8%
POWER-ONE3.0%
Frequently asked
Quick answers about 02451
How many solar installations are there in 02451?
SolarDNA counts 452 active solar installations in Waltham 02451, 430 of them residential, with data through December 28, 2023.
How much does solar cost in 02451?
The median residential system in 02451 cost $4.04 per watt over the trailing twelve months, $0.13/W below the Massachusetts median.
Is solar growing in 02451?
Recent growth cannot be measured yet for 02451: insufficient recent data (data runs through December 28, 2023).
Who installs solar in 02451?
TESLA, SUNRUN, TRINITY SOLAR lead the 75 installers with systems in 02451. The full comp set is above.
Is 02451 a good market for solar sales?
02451 scores 48 out of 100 (Great, higher than 79% of U.S. zip markets). With under 500 installations the score is provisional.