San Martin, CA solar installation & market data
Updated May 7, 2026 By The SolarDNA Data Team
San Martin has 545 solar installations across 1 zip code at a median installed cost of $4.42/W, recent growth not yet measurable, and an installs-weighted Market Score of 40.
Active installations
545
Zip markets
1
Median cost
$4.42/W
12-mo growth
—
Installers active
12
City Market Score
Good · installs-weighted across 1 zips
Best zip in San Martin scores higher than 36% of U.S. zip markets.
Versus California
How San Martin compares with the state
Installed cost
$0.16/W above
state median $4.26/W
Market score
40 vs 53
California scores 53
Share of state installs
0.02%
of 2.3M tracked statewide
Battery attach
9.5%
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
Growth & pricing
San Martin by year
26 installs in the trailing twelve months vs 31 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in San Martin
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 99 | 3 | 1 | $5.11 |
| 2 | SUNRUN | 94 | 7 | 1 | $4.15 |
| 3 | PETERSENDEAN | 34 | 0 | 1 | $4.15 |
| 4 | SEMPER SOLARIS | 12 | 0 | 1 | $4.51 |
| 5 | SUNPOWER | 11 | 0 | 1 | $4.55 |
| 6 | FREEDOM FOREVER | 10 | 0 | 1 | $4.57 |
| 7 | SUNGEVITY | 9 | 0 | 1 | $3.80 |
| 8 | RGS ENERGY | 8 | 0 | 1 | $5.78 |
| 9 | REC SOLAR COMMERCIAL | 7 | 0 | 1 | $5.07 |
| 10 | SOLAR UNIVERSE | 7 | 0 | 1 | $5.40 |
| 11 | SOLAR TECHNOLOGIES | 6 | 1 | 1 | $4.58 |
| 12 | KWH CONSTRUCTION | 6 | 0 | 1 | $3.54 |
Zip markets
Zips in San Martin
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 95046 | 545 | $4.42 | 40 C |