San Diego, CA 92120 solar market data
Updated March 20, 2026 By The SolarDNA Data Team
San Diego 92120 has 4,516 solar installations at a median installed cost of $4.11/W, installations down 5.5% over the trailing twelve months, and a Market Score of 48 — higher than 79% of U.S. zip markets.
Versus California
How 92120 compares with the state
Installed cost
$0.16/W below
state median $4.26/W
Market score
48 vs 53
California scores 53
Share of state installs
0.20%
of 2.3M tracked statewide
Battery attach
5.6%
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: 149–183 installs (midpoint 166)
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
92120 by year
171 installs in the trailing twelve months vs 181 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 92120
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 564 | 26 | 5.15 | $4.56 |
| 2 | BAKER ELECTRIC SOLAR | 307 | 0 | 7.01 | $4.38 |
| 3 | TESLA | 271 | 5 | 6.29 | $5.10 |
| 4 | SEMPER SOLARIS | 249 | 0 | 5.91 | $3.96 |
| 5 | STELLAR SOLAR | 175 | 6 | 5.89 | $4.02 |
| 6 | SULLIVAN SOLAR POWER | 135 | 0 | 7.13 | $4.19 |
| 7 | SOLARTECH ENERGY SYSTEMS | 120 | 0 | 6.4 | $3.80 |
| 8 | SUNLINE ENERGY | 84 | 5 | 6.2 | $3.82 |
| 9 | ASI HEATING AIR | 77 | 0 | 6.06 | $3.56 |
| 10 | BRIGHT PLANET SOLAR | 68 | 7 | 4.85 | $4.75 |
| 11 | SOLARQUEST | 61 | 0 | 6.48 | $3.20 |
| 12 | FREEDOM SOLAR POWER TX | 57 | 0 | 5.34 | $4.40 |
Equipment
What gets installed in 92120
Share of systems with a recorded brand
Modules
LG ELECTRONICS17.3%
QCELLS NORTH AMERICA15.3%
SUNPOWER12.5%
SILFAB SOLAR4.5%
SANYO ELECTRIC OF PANASONIC GROUP4.0%
Inverters
ENPHASE ENERGY38.2%
SOLAREDGE27.7%
SUNPOWER7.9%
SMA AMERICA7.5%
TESLA2.9%
Frequently asked
Quick answers about 92120
How many solar installations are there in 92120?
SolarDNA counts 4,516 active solar installations in San Diego 92120, 4,483 of them residential, with data through March 20, 2026.
How much does solar cost in 92120?
The median residential system in 92120 cost $4.11 per watt over the trailing twelve months, $0.16/W below the California median.
Is solar growing in 92120?
Installations in 92120 are down 5.5%: 171 in the trailing twelve months versus 181 before.
Who installs solar in 92120?
SUNRUN, BAKER ELECTRIC SOLAR, TESLA lead the 436 installers with systems in 92120. The full comp set is above.
Is 92120 a good market for solar sales?
92120 scores 48 out of 100 (Great, higher than 79% of U.S. zip markets).