San Diego, CA 92109 solar market data
Updated April 2, 2026 By The SolarDNA Data Team
San Diego 92109 has 2,689 solar installations at a median installed cost of $4.14/W, installations up 7.6% over the trailing twelve months, and a Market Score of 51 — higher than 91% of U.S. zip markets.
Zip Market Score
Excellent · higher than 91% of zips
Versus California
How 92109 compares with the state
Installed cost
$0.12/W below
state median $4.26/W
Market score
51 vs 53
California scores 53
Share of state installs
0.12%
of 2.3M tracked statewide
Battery attach
6.5%
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: 132–162 installs (midpoint 147)
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
92109 by year
142 installs in the trailing twelve months vs 132 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 92109
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | HARBAUGH ELECTRIC | 147 | 0 | 2.16 | $8.61 |
| 2 | SUNRUN | 144 | 17 | 6.19 | $4.47 |
| 3 | TESLA | 128 | 3 | 17.49 | $5.12 |
| 4 | BAKER ELECTRIC SOLAR | 123 | 0 | 6.66 | $4.28 |
| 5 | SEMPER SOLARIS | 111 | 0 | 5.36 | $4.28 |
| 6 | SULLIVAN SOLAR POWER | 90 | 0 | 6.54 | $4.02 |
| 7 | SUNSTREET ENERGY GROUP | 90 | 0 | 2.51 | $3.80 |
| 8 | STELLAR SOLAR | 83 | 3 | 5.99 | $4.27 |
| 9 | SUNLINE ENERGY | 58 | 6 | 6.43 | $4.00 |
| 10 | ALTAIR SOLAR | 57 | 0 | 2.06 | $8.81 |
| 11 | SATTLER ENGINEERING | 40 | 1 | 5.49 | $3.17 |
| 12 | SOLARTECH ENERGY SYSTEMS | 36 | 0 | 6.32 | $3.70 |
Equipment
What gets installed in 92109
Share of systems with a recorded brand
Modules
LG ELECTRONICS19.1%
QCELLS NORTH AMERICA16.5%
SUNPOWER11.5%
KYOCERA SOLAR3.8%
SANYO ELECTRIC OF PANASONIC GROUP3.5%
Inverters
ENPHASE ENERGY41.6%
SOLAREDGE21.0%
SMA AMERICA9.7%
SUNPOWER6.4%
FRONIUS USA2.9%
Frequently asked
Quick answers about 92109
How many solar installations are there in 92109?
SolarDNA counts 2,689 active solar installations in San Diego 92109, 2,643 of them residential, with data through April 2, 2026.
How much does solar cost in 92109?
The median residential system in 92109 cost $4.14 per watt over the trailing twelve months, $0.12/W below the California median.
Is solar growing in 92109?
Installations in 92109 are up 7.6%: 142 in the trailing twelve months versus 132 before.
Who installs solar in 92109?
HARBAUGH ELECTRIC, SUNRUN, TESLA lead the 366 installers with systems in 92109. The full comp set is above.
Is 92109 a good market for solar sales?
92109 scores 51 out of 100 (Excellent, higher than 91% of U.S. zip markets).