Lakeside, CA 92040 solar market data
Updated March 24, 2026 By The SolarDNA Data Team
Lakeside 92040 has 6,414 solar installations at a median installed cost of $4.15/W, installations down 1.6% over the trailing twelve months, and a Market Score of 48 — higher than 82% of U.S. zip markets.
Versus California
How 92040 compares with the state
Installed cost
$0.11/W below
state median $4.26/W
Market score
48 vs 53
California scores 53
Share of state installs
0.28%
of 2.3M tracked statewide
Battery attach
5.5%
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: 220–268 installs (midpoint 244)
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
92040 by year
246 installs in the trailing twelve months vs 250 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 92040
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 1,321 | 42 | 5.91 | $4.56 |
| 2 | TESLA | 445 | 1 | 7.27 | $5.12 |
| 3 | BAKER ELECTRIC SOLAR | 356 | 0 | 7.53 | $4.08 |
| 4 | SEMPER SOLARIS | 355 | 0 | 6.54 | $4.10 |
| 5 | BRIGHT PLANET SOLAR | 213 | 17 | 5.99 | $4.70 |
| 6 | SUNPOWER | 182 | 0 | 9.95 | $4.10 |
| 7 | SOLARTECH ENERGY SYSTEMS | 120 | 0 | 8.28 | $3.68 |
| 8 | SULLIVAN SOLAR POWER | 95 | 0 | 7.36 | $4.21 |
| 9 | SUNGEVITY | 91 | 0 | 6.62 | $4.08 |
| 10 | STELLAR SOLAR | 87 | 3 | 7.78 | $3.98 |
| 11 | SIMMS SOLAR ELECTRIC | 80 | 27 | 7.78 | $2.88 |
| 12 | FREEDOM SOLAR POWER TX | 68 | 0 | 6.54 | $4.18 |
Equipment
What gets installed in 92040
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA14.1%
SUNPOWER14.1%
LG ELECTRONICS12.8%
CSI SOLAR4.9%
YINGLI ENERGY CHINA4.8%
Inverters
ENPHASE ENERGY33.4%
SOLAREDGE32.2%
SMA AMERICA8.1%
SUNPOWER6.6%
ABB4.0%
Frequently asked
Quick answers about 92040
How many solar installations are there in 92040?
SolarDNA counts 6,414 active solar installations in Lakeside 92040, 6,355 of them residential, with data through March 24, 2026.
How much does solar cost in 92040?
The median residential system in 92040 cost $4.15 per watt over the trailing twelve months, $0.11/W below the California median.
Is solar growing in 92040?
Installations in 92040 are down 1.6%: 246 in the trailing twelve months versus 250 before.
Who installs solar in 92040?
SUNRUN, TESLA, BAKER ELECTRIC SOLAR lead the 499 installers with systems in 92040. The full comp set is above.
Is 92040 a good market for solar sales?
92040 scores 48 out of 100 (Great, higher than 82% of U.S. zip markets).