Bonsall, CA 92003 solar market data
Updated March 27, 2026 By The SolarDNA Data Team
Bonsall 92003 has 1,110 solar installations at a median installed cost of $4.16/W, installations up 32.0% over the trailing twelve months, and a Market Score of 52 — higher than 95% of U.S. zip markets.
Zip Market Score
Excellent · higher than 95% of zips
Versus California
How 92003 compares with the state
Installed cost
$0.10/W below
state median $4.26/W
Market score
52 vs 53
California scores 53
Share of state installs
0.05%
of 2.3M tracked statewide
Battery attach
9.6%
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: 65–87 installs (midpoint 76)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±15% band. Not a forecast of permits or policy.
Growth & pricing
92003 by year
66 installs in the trailing twelve months vs 50 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 92003
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 152 | 5 | 6.22 | $4.16 |
| 2 | BAKER ELECTRIC SOLAR | 98 | 0 | 9.64 | $4.16 |
| 3 | TESLA | 54 | 0 | 8.21 | $5.12 |
| 4 | SUNPOWER | 51 | 0 | 5.5 | $4.22 |
| 5 | SEMPER SOLARIS | 49 | 0 | 7.68 | $4.21 |
| 6 | STELLAR SOLAR | 35 | 0 | 8.44 | $3.85 |
| 7 | SOLAR HEROES | 32 | 26 | 7.4 | $2.83 |
| 8 | SUNGEVITY | 28 | 0 | 7.33 | $4.23 |
| 9 | COSMIC SOLAR | 19 | 3 | 13.49 | $3.88 |
| 10 | SOLARA HOME ENERGY | 19 | 2 | 3.91 | $3.33 |
| 11 | SUNGENIA SOLAR SOLUTIONS | 18 | 2 | 13.31 | $3.64 |
| 12 | SULLIVAN SOLAR POWER | 16 | 0 | 13.01 | $4.67 |
Equipment
What gets installed in 92003
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA22.8%
SUNPOWER16.2%
LG ELECTRONICS13.7%
QCELLSNORTHAMERICA4.1%
CSI SOLAR3.3%
Inverters
ENPHASE ENERGY34.5%
SOLAREDGE26.1%
SMA AMERICA11.1%
SUNPOWER9.8%
ENPHASEENERGYINC2.9%
Frequently asked
Quick answers about 92003
How many solar installations are there in 92003?
SolarDNA counts 1,110 active solar installations in Bonsall 92003, 1,089 of them residential, with data through March 27, 2026.
How much does solar cost in 92003?
The median residential system in 92003 cost $4.16 per watt over the trailing twelve months, $0.10/W below the California median.
Is solar growing in 92003?
Installations in 92003 are up 32.0%: 66 in the trailing twelve months versus 50 before.
Who installs solar in 92003?
SUNRUN, BAKER ELECTRIC SOLAR, TESLA lead the 213 installers with systems in 92003. The full comp set is above.
Is 92003 a good market for solar sales?
92003 scores 52 out of 100 (Excellent, higher than 95% of U.S. zip markets).