San Diego, CA 92131 solar market data
Updated January 27, 2026 By The SolarDNA Data Team
San Diego 92131 has 5,677 solar installations at a median installed cost of $4.00/W, installations down 25.0% over the trailing twelve months, and a Market Score of 43 — higher than 58% of U.S. zip markets.
Versus California
How 92131 compares with the state
Installed cost
$0.27/W below
state median $4.26/W
Market score
43 vs 53
California scores 53
Share of state installs
0.25%
of 2.3M tracked statewide
Battery attach
6.4%
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: 110–142 installs (midpoint 126)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±13% band. Not a forecast of permits or policy.
Growth & pricing
92131 by year
144 installs in the trailing twelve months vs 192 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 92131
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | BAKER ELECTRIC SOLAR | 638 | 0 | 8.94 | $4.25 |
| 2 | SUNRUN | 552 | 14 | 6.05 | $4.12 |
| 3 | TESLA | 535 | 10 | 6.95 | $4.23 |
| 4 | SULLIVAN SOLAR POWER | 284 | 0 | 8.84 | $4.28 |
| 5 | SEMPER SOLARIS | 269 | 0 | 6.04 | $4.00 |
| 6 | STELLAR SOLAR | 244 | 9 | 7.55 | $4.00 |
| 7 | SUNLINE ENERGY | 204 | 6 | 6.4 | $3.83 |
| 8 | SOLARTECH ENERGY SYSTEMS | 151 | 0 | 6.64 | $3.61 |
| 9 | ASI HEATING AIR | 115 | 0 | 6.5 | $3.80 |
| 10 | SOLARE ENERGY | 83 | 0 | 6.72 | $3.89 |
| 11 | WEST COAST SOLAR | 82 | 1 | 6.39 | $3.89 |
| 12 | SUNPOWER | 80 | 0 | 8.32 | $4.50 |
Equipment
What gets installed in 92131
Share of systems with a recorded brand
Modules
LG ELECTRONICS20.2%
SUNPOWER17.4%
QCELLS NORTH AMERICA14.8%
SANYO ELECTRIC OF PANASONIC GROUP6.1%
KYOCERA SOLAR4.1%
Inverters
ENPHASE ENERGY33.3%
SOLAREDGE28.5%
SMA AMERICA10.5%
SUNPOWER8.9%
TESLA4.2%
Frequently asked
Quick answers about 92131
How many solar installations are there in 92131?
SolarDNA counts 5,677 active solar installations in San Diego 92131, 5,631 of them residential, with data through January 27, 2026.
How much does solar cost in 92131?
The median residential system in 92131 cost $4.00 per watt over the trailing twelve months, $0.27/W below the California median.
Is solar growing in 92131?
Installations in 92131 are down 25.0%: 144 in the trailing twelve months versus 192 before.
Who installs solar in 92131?
BAKER ELECTRIC SOLAR, SUNRUN, TESLA lead the 404 installers with systems in 92131. The full comp set is above.
Is 92131 a good market for solar sales?
92131 scores 43 out of 100 (Good, higher than 58% of U.S. zip markets).