Belmont, CA solar installation & market data
Updated April 28, 2026 By The SolarDNA Data Team
Belmont has 1,668 solar installations across 1 zip code at a median installed cost of $4.45/W, installations down 7.2% over the trailing twelve months, and an installs-weighted Market Score of 44.
Active installations
1,668
Zip markets
1
Median cost
$4.45/W
12-mo growth
▼ 7.2%
Installers active
12
City Market Score
Good · installs-weighted across 1 zips
Best zip in Belmont scores higher than 64% of U.S. zip markets.
Versus California
How Belmont 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
Belmont 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 Belmont
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 398 | 20 | 1 | $5.12 |
| 2 | SUNRUN | 141 | 5 | 1 | $4.27 |
| 3 | SUNPOWER | 80 | 1 | 1 | $4.50 |
| 4 | ROCKIN ROOFERS | 71 | 13 | 1 | $4.30 |
| 5 | COBALT POWER SYSTEMS | 52 | 3 | 1 | $4.68 |
| 6 | SEMPER SOLARIS | 49 | 4 | 1 | $4.36 |
| 7 | CLEAN SOLAR | 48 | 4 | 1 | $4.61 |
| 8 | YOUR ENERGY SOLUTIONS | 31 | 4 | 1 | $4.07 |
| 9 | PETERSENDEAN | 27 | 0 | 1 | $3.91 |
| 10 | NRG CLEAN ENERGY | 24 | 0 | 1 | $3.31 |
| 11 | RA SOLAR CA | 19 | 0 | 1 | $2.89 |
| 12 | SUNGEVITY | 18 | 0 | 1 | $3.65 |
Zip markets
Zips in Belmont
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 94002 | 1,668 | $4.45 | 44 C |