San Diego, CA 92128 solar market data
Updated April 13, 2026 By The SolarDNA Data Team
San Diego 92128 has 6,119 solar installations at a median installed cost of $4.22/W, installations down 2.7% over the trailing twelve months, and a Market Score of 48 — higher than 79% of U.S. zip markets.
Versus California
How 92128 compares with the state
Installed cost
$0.05/W below
state median $4.26/W
Market score
48 vs 53
California scores 53
Share of state installs
0.27%
of 2.3M tracked statewide
Battery attach
7.3%
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: 441–539 installs (midpoint 490)
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
92128 by year
497 installs in the trailing twelve months vs 511 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 92128
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | BAKER ELECTRIC SOLAR | 622 | 0 | 7.59 | $4.43 |
| 2 | SUNRUN | 601 | 23 | 5.03 | $4.51 |
| 3 | TESLA | 533 | 8 | 5.62 | $4.87 |
| 4 | LENNAR | 308 | 73 | 3.79 | — |
| 5 | SEMPER SOLARIS | 301 | 0 | 5.54 | $4.05 |
| 6 | GAF ENERGY | 224 | 213 | 3.85 | $7.20 |
| 7 | SULLIVAN SOLAR POWER | 185 | 0 | 6.82 | $4.29 |
| 8 | STELLAR SOLAR | 181 | 10 | 6.35 | $4.20 |
| 9 | SUNSTREET ENERGY GROUP | 181 | 0 | 3.85 | $3.81 |
| 10 | SUNLINE ENERGY | 168 | 9 | 5.6 | $4.05 |
| 11 | SOLARTECH ENERGY SYSTEMS | 124 | 0 | 6.22 | $3.79 |
| 12 | BRIGHT PLANET SOLAR | 97 | 4 | 4.75 | $4.66 |
Equipment
What gets installed in 92128
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA18.1%
LG ELECTRONICS15.3%
SUNPOWER11.7%
QCELLSNORTHAMERICA9.7%
SANYO ELECTRIC OF PANASONIC GROUP4.1%
Inverters
ENPHASE ENERGY33.7%
SOLAREDGE26.0%
SUNPOWER6.6%
SMA AMERICA6.3%
ENPHASEENERGYINC5.8%
Frequently asked
Quick answers about 92128
How many solar installations are there in 92128?
SolarDNA counts 6,119 active solar installations in San Diego 92128, 6,058 of them residential, with data through April 13, 2026.
How much does solar cost in 92128?
The median residential system in 92128 cost $4.22 per watt over the trailing twelve months, $0.05/W below the California median.
Is solar growing in 92128?
Installations in 92128 are down 2.7%: 497 in the trailing twelve months versus 511 before.
Who installs solar in 92128?
BAKER ELECTRIC SOLAR, SUNRUN, TESLA lead the 443 installers with systems in 92128. The full comp set is above.
Is 92128 a good market for solar sales?
92128 scores 48 out of 100 (Great, higher than 79% of U.S. zip markets).