South El Monte, CA 91733 solar market data
Updated May 9, 2026 By The SolarDNA Data Team
South El Monte 91733 has 833 solar installations at a median installed cost of $4.17/W, installations up 345.5% over the trailing twelve months, and a Market Score of 55 — higher than 98% of U.S. zip markets.
Zip Market Score
Excellent · higher than 98% of zips
Versus California
How 91733 compares with the state
Installed cost
$0.10/W below
state median $4.26/W
Market score
55 vs 53
California scores 53
Share of state installs
0.04%
of 2.3M tracked statewide
Battery attach
12.0%
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: 191–259 installs (midpoint 225)
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
91733 by year
196 installs in the trailing twelve months vs 44 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 91733
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 268 | 138 | 4.18 | $4.13 |
| 2 | SUNPOWER | 73 | 0 | 13.4 | $4.50 |
| 3 | CALSTATE SOLAR | 32 | 0 | 1.8 | $4.17 |
| 4 | FREEDOM FOREVER | 31 | 8 | 7 | $4.89 |
| 5 | TESLA | 31 | 2 | 8.56 | $4.90 |
| 6 | SCS | 28 | 0 | 2.36 | $0.88 |
| 7 | ESP CONTRACTING | 18 | 0 | 5.89 | $4.40 |
| 8 | SWSS ELECTRIC | 18 | 0 | 7.19 | $2.98 |
| 9 | V3 ELECTRIC | 10 | 8 | 6.52 | $6.49 |
| 10 | BRIGHT OPS | 10 | 4 | 6.93 | $5.02 |
| 11 | SUNERGY CONSTRUCTION | 8 | 0 | 5.96 | $5.01 |
| 12 | VERENGO | 8 | 0 | 4.53 | $3.76 |
Equipment
What gets installed in 91733
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA22.0%
JA SOLAR HOLDING18.6%
SUNPOWER12.5%
TRINA SOLAR8.9%
LG ELECTRONICS5.6%
Inverters
ENPHASE ENERGY41.9%
SOLAREDGE34.5%
SUNPOWER10.5%
ABB3.0%
TESLA2.5%
Frequently asked
Quick answers about 91733
How many solar installations are there in 91733?
SolarDNA counts 833 active solar installations in South El Monte 91733, 796 of them residential, with data through May 9, 2026.
How much does solar cost in 91733?
The median residential system in 91733 cost $4.17 per watt over the trailing twelve months, $0.10/W below the California median.
Is solar growing in 91733?
Installations in 91733 are up 345.5%: 196 in the trailing twelve months versus 44 before.
Who installs solar in 91733?
SUNRUN, SUNPOWER, CALSTATE SOLAR lead the 161 installers with systems in 91733. The full comp set is above.
Is 91733 a good market for solar sales?
91733 scores 55 out of 100 (Excellent, higher than 98% of U.S. zip markets).