Lemon Grove, CA 91945 solar market data
Updated May 4, 2026 By The SolarDNA Data Team
Lemon Grove 91945 has 2,658 solar installations at a median installed cost of $4.49/W, installations down 28.8% over the trailing twelve months, and a Market Score of 40 — higher than 35% of U.S. zip markets.
Versus California
How 91945 compares with the state
Installed cost
$0.23/W above
state median $4.26/W
Market score
40 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: 80–106 installs (midpoint 93)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±14% band. Not a forecast of permits or policy.
Growth & pricing
91945 by year
109 installs in the trailing twelve months vs 153 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 91945
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 514 | 39 | 5.17 | $4.88 |
| 2 | TESLA | 208 | 3 | 5.21 | $5.12 |
| 3 | BRIGHT PLANET SOLAR | 183 | 13 | 4.87 | $4.79 |
| 4 | SEMPER SOLARIS | 130 | 0 | 5.45 | $4.07 |
| 5 | SUNPOWER | 125 | 5 | 3.82 | $4.27 |
| 6 | BAKER ELECTRIC SOLAR | 85 | 0 | 6.05 | $4.03 |
| 7 | FREEDOM SOLAR POWER TX | 65 | 0 | 5.14 | $4.20 |
| 8 | SOLARTECH ENERGY SYSTEMS | 41 | 0 | 7.38 | $3.77 |
| 9 | NEW POWER | 40 | 0 | 4.23 | $5.82 |
| 10 | SUNGEVITY | 39 | 0 | 5.39 | $4.05 |
| 11 | SUNLIGHT SOLAR | 31 | 2 | 5.3 | $4.53 |
| 12 | INFINITY ENERGY | 30 | 0 | 4.78 | $5.58 |
Equipment
What gets installed in 91945
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA19.7%
LG ELECTRONICS9.3%
SUNPOWER8.3%
LONGI GREEN ENERGY TECHNOLOGY6.2%
SILFAB SOLAR5.6%
Inverters
SOLAREDGE38.3%
ENPHASE ENERGY31.0%
SUNPOWER5.6%
ABB4.6%
SMA AMERICA4.1%
Frequently asked
Quick answers about 91945
How many solar installations are there in 91945?
SolarDNA counts 2,658 active solar installations in Lemon Grove 91945, 2,633 of them residential, with data through May 4, 2026.
How much does solar cost in 91945?
The median residential system in 91945 cost $4.49 per watt over the trailing twelve months, $0.23/W above the California median.
Is solar growing in 91945?
Installations in 91945 are down 28.8%: 109 in the trailing twelve months versus 153 before.
Who installs solar in 91945?
SUNRUN, TESLA, BRIGHT PLANET SOLAR lead the 303 installers with systems in 91945. The full comp set is above.
Is 91945 a good market for solar sales?
91945 scores 40 out of 100 (Good, higher than 35% of U.S. zip markets).