San Diego, CA 92123 solar market data
Updated April 8, 2026 By The SolarDNA Data Team
San Diego 92123 has 2,837 solar installations at a median installed cost of $4.04/W, installations down 8.6% over the trailing twelve months, and a Market Score of 47 — higher than 77% of U.S. zip markets.
Versus California
How 92123 compares with the state
Installed cost
$0.22/W below
state median $4.26/W
Market score
47 vs 53
California scores 53
Share of state installs
0.13%
of 2.3M tracked statewide
Battery attach
6.2%
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: 91–111 installs (midpoint 101)
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
92123 by year
106 installs in the trailing twelve months vs 116 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 92123
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 559 | 20 | 4.81 | $4.64 |
| 2 | TESLA | 435 | 3 | 8.96 | $3.64 |
| 3 | SEMPER SOLARIS | 144 | 0 | 4.95 | $3.96 |
| 4 | BAKER ELECTRIC SOLAR | 132 | 0 | 17.33 | $4.26 |
| 5 | SUNLINE ENERGY | 73 | 3 | 5.44 | $4.08 |
| 6 | STELLAR SOLAR | 63 | 1 | 7.39 | $4.12 |
| 7 | SULLIVAN SOLAR POWER | 57 | 0 | 6.92 | $4.31 |
| 8 | BRIGHT PLANET SOLAR | 50 | 0 | 5.07 | $4.73 |
| 9 | MILHOLLAND ELECTRIC | 41 | 0 | 5.26 | $5.57 |
| 10 | HOME ENERGY SYSTEMS | 36 | 6 | 78.29 | $3.75 |
| 11 | ASI HEATING AIR | 35 | 0 | 5.58 | $3.46 |
| 12 | SOLARTECH ENERGY SYSTEMS | 35 | 0 | 7.98 | $3.94 |
Equipment
What gets installed in 92123
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA15.1%
LG ELECTRONICS9.8%
SUNPOWER9.0%
AU OPTRONICS8.2%
YINGLI ENERGY CHINA5.6%
Inverters
ENPHASE ENERGY33.6%
SOLAREDGE30.9%
FRONIUS USA7.9%
SMA AMERICA5.5%
SUNPOWER5.5%
Frequently asked
Quick answers about 92123
How many solar installations are there in 92123?
SolarDNA counts 2,837 active solar installations in San Diego 92123, 2,710 of them residential, with data through April 8, 2026.
How much does solar cost in 92123?
The median residential system in 92123 cost $4.04 per watt over the trailing twelve months, $0.22/W below the California median.
Is solar growing in 92123?
Installations in 92123 are down 8.6%: 106 in the trailing twelve months versus 116 before.
Who installs solar in 92123?
SUNRUN, TESLA, SEMPER SOLARIS lead the 350 installers with systems in 92123. The full comp set is above.
Is 92123 a good market for solar sales?
92123 scores 47 out of 100 (Great, higher than 77% of U.S. zip markets).