San Jose, CA 95121 solar market data
Updated April 23, 2026 By The SolarDNA Data Team
San Jose 95121 has 2,085 solar installations at a median installed cost of $4.37/W, installations down 11.6% over the trailing twelve months, and a Market Score of 45 — higher than 67% of U.S. zip markets.
Versus California
How 95121 compares with the state
Installed cost
$0.11/W above
state median $4.26/W
Market score
45 vs 53
California scores 53
Share of state installs
0.09%
of 2.3M tracked statewide
Battery attach
8.2%
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: 84–102 installs (midpoint 93)
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
95121 by year
99 installs in the trailing twelve months vs 112 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 95121
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 425 | 25 | 6.47 | $5.12 |
| 2 | SUNRUN | 373 | 28 | 5.96 | $4.26 |
| 3 | SWSS ELECTRIC | 150 | 3 | 6.87 | $3.03 |
| 4 | SUNPOWER | 105 | 1 | 5.15 | $4.62 |
| 5 | BRIGHT OPS | 69 | 10 | 5.97 | $4.80 |
| 6 | SOLAR SYSTEM BUILDERS | 67 | 0 | 8.42 | $3.44 |
| 7 | PETERSENDEAN | 47 | 0 | 4.59 | $4.01 |
| 8 | FREEDOM FOREVER | 34 | 2 | 6.4 | $4.19 |
| 9 | SEMPER SOLARIS | 26 | 0 | 5.81 | $4.07 |
| 10 | SUNGEVITY | 26 | 0 | 5.17 | $3.72 |
| 11 | NEXUS ENERGY SYSTEMS | 24 | 0 | 4.82 | $6.84 |
| 12 | QUALITY FIRST HOME IMPROVEMENT | 22 | 0 | 3.41 | $6.59 |
Equipment
What gets installed in 95121
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA14.3%
LG ELECTRONICS10.3%
REC SOLAR8.0%
SUNPOWER7.1%
CSI SOLAR5.4%
Inverters
ENPHASE ENERGY32.4%
SOLAREDGE28.0%
TESLA8.5%
ABB6.9%
POWER-ONE5.5%
Frequently asked
Quick answers about 95121
How many solar installations are there in 95121?
SolarDNA counts 2,085 active solar installations in San Jose 95121, 2,073 of them residential, with data through April 23, 2026.
How much does solar cost in 95121?
The median residential system in 95121 cost $4.37 per watt over the trailing twelve months, $0.11/W above the California median.
Is solar growing in 95121?
Installations in 95121 are down 11.6%: 99 in the trailing twelve months versus 112 before.
Who installs solar in 95121?
TESLA, SUNRUN, SWSS ELECTRIC lead the 219 installers with systems in 95121. The full comp set is above.
Is 95121 a good market for solar sales?
95121 scores 45 out of 100 (Good, higher than 67% of U.S. zip markets).