Belmont, CA 94002 solar market data
Updated April 28, 2026 By The SolarDNA Data Team
Belmont 94002 has 1,668 solar installations at a median installed cost of $4.45/W, installations down 7.2% over the trailing twelve months, and a Market Score of 44 — higher than 64% of U.S. zip markets.
Versus California
How 94002 compares with the state
Installed cost
$0.18/W above
state median $4.26/W
Market score
44 vs 53
California scores 53
Share of state installs
0.07%
of 2.3M tracked statewide
Battery attach
15.8%
state 12.7%
Statewide momentum
▲ 1.1%
residential solar added in California, 12 months through Jul 2026
Statewide market
2.3M systems
30.9% of homes · utility-reported through Jul 2026
Next-12-month outlook: 111–135 installs (midpoint 123)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±10% band. Not a forecast of permits or policy.
Growth & pricing
94002 by year
128 installs in the trailing twelve months vs 138 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 94002
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 398 | 20 | 6.31 | $5.12 |
| 2 | SUNRUN | 141 | 5 | 6.24 | $4.27 |
| 3 | SUNPOWER | 80 | 1 | 5.73 | $4.50 |
| 4 | ROCKIN ROOFERS | 71 | 13 | 7.26 | $4.30 |
| 5 | COBALT POWER SYSTEMS | 52 | 3 | 7.26 | $4.68 |
| 6 | SEMPER SOLARIS | 49 | 4 | 6.14 | $4.36 |
| 7 | CLEAN SOLAR | 48 | 4 | 7.1 | $4.61 |
| 8 | YOUR ENERGY SOLUTIONS | 31 | 4 | 6.96 | $4.07 |
| 9 | PETERSENDEAN | 27 | 0 | 4.96 | $3.91 |
| 10 | NRG CLEAN ENERGY | 24 | 0 | 7.65 | $3.31 |
| 11 | RA SOLAR CA | 19 | 0 | 6.55 | $2.89 |
| 12 | SUNGEVITY | 18 | 0 | 5.05 | $3.65 |
Equipment
What gets installed in 94002
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA16.8%
SUNPOWER12.3%
LG ELECTRONICS7.2%
TESLA6.0%
REC GROUP5.6%
Inverters
ENPHASE ENERGY29.9%
SOLAREDGE25.6%
TESLA12.4%
SUNPOWER9.8%
FRONIUS USA4.6%
Frequently asked
Quick answers about 94002
How many solar installations are there in 94002?
SolarDNA counts 1,668 active solar installations in Belmont 94002, 1,653 of them residential, with data through April 28, 2026.
How much does solar cost in 94002?
The median residential system in 94002 cost $4.45 per watt over the trailing twelve months, $0.18/W above the California median.
Is solar growing in 94002?
Installations in 94002 are down 7.2%: 128 in the trailing twelve months versus 138 before.
Who installs solar in 94002?
TESLA, SUNRUN, SUNPOWER lead the 221 installers with systems in 94002. The full comp set is above.
Is 94002 a good market for solar sales?
94002 scores 44 out of 100 (Good, higher than 64% of U.S. zip markets).