San Diego, CA 92139 solar market data
Updated April 23, 2026 By The SolarDNA Data Team
San Diego 92139 has 3,057 solar installations at a median installed cost of $4.56/W, installations down 15.9% over the trailing twelve months, and a Market Score of 43 — higher than 56% of U.S. zip markets.
Versus California
How 92139 compares with the state
Installed cost
$0.30/W above
state median $4.26/W
Market score
43 vs 53
California scores 53
Share of state installs
0.14%
of 2.3M tracked statewide
Battery attach
7.6%
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: 119–145 installs (midpoint 132)
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
92139 by year
143 installs in the trailing twelve months vs 170 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 92139
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 840 | 55 | 4.86 | $4.79 |
| 2 | TESLA | 424 | 3 | 5.42 | $3.64 |
| 3 | BRIGHT PLANET SOLAR | 290 | 15 | 4.58 | $4.85 |
| 4 | SEMPER SOLARIS | 139 | 0 | 4.88 | $4.16 |
| 5 | FREEDOM SOLAR POWER TX | 86 | 0 | 4.55 | $4.33 |
| 6 | BAKER ELECTRIC SOLAR | 42 | 0 | 5.48 | $4.18 |
| 7 | INFINITY ENERGY | 40 | 0 | 4.46 | $4.93 |
| 8 | ZING SOLAR | 39 | 0 | 4.36 | $1.06 |
| 9 | ENERGY SERVICE PARTNERS | 37 | 0 | 4.41 | $4.18 |
| 10 | NEW POWER | 34 | 0 | 3.8 | $6.01 |
| 11 | SUNPOWER | 32 | 0 | 14.98 | $4.72 |
| 12 | SOLARTECH ENERGY SYSTEMS | 29 | 0 | 5.48 | $4.00 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 91902 Bonita | 2.8 km | 2,810 | $4.22 | 44 |
| 92114 San Diego | 2.9 km | 6,575 | $4.68 | 40 |
| 91950 National City | 4.0 km | 1,998 | $4.76 | 39 |
| 91910 Chula Vista | 5.2 km | 5,260 | $4.45 | 52 |
| 91909 Chula Vista | 5.7 km | 5 | $8.00 | 28 |
| 91945 Lemon Grove | 6.0 km | 2,658 | $4.49 | 40 |
Equipment
What gets installed in 92139
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA20.8%
LONGI GREEN ENERGY TECHNOLOGY9.6%
AU OPTRONICS6.7%
LG ELECTRONICS6.3%
SILFAB SOLAR5.9%
Inverters
SOLAREDGE43.5%
ENPHASE ENERGY23.3%
FRONIUS USA7.0%
ABB5.5%
SUNPOWER3.3%
Frequently asked
Quick answers about 92139
How many solar installations are there in 92139?
SolarDNA counts 3,057 active solar installations in San Diego 92139, 3,045 of them residential, with data through April 23, 2026.
How much does solar cost in 92139?
The median residential system in 92139 cost $4.56 per watt over the trailing twelve months, $0.30/W above the California median.
Is solar growing in 92139?
Installations in 92139 are down 15.9%: 143 in the trailing twelve months versus 170 before.
Who installs solar in 92139?
SUNRUN, TESLA, BRIGHT PLANET SOLAR lead the 265 installers with systems in 92139. The full comp set is above.
Is 92139 a good market for solar sales?
92139 scores 43 out of 100 (Good, higher than 56% of U.S. zip markets).