Alhambra, CA 91801 solar market data
Updated April 29, 2026 By The SolarDNA Data Team
Alhambra 91801 has 751 solar installations at a median installed cost of $4.31/W, installations down 6.7% over the trailing twelve months, and a Market Score of 40 — higher than 35% of U.S. zip markets.
Versus California
How 91801 compares with the state
Installed cost
$0.05/W above
state median $4.26/W
Market score
40 vs 53
California scores 53
Share of state installs
0.03%
of 2.3M tracked statewide
Battery attach
18.5%
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: 61–75 installs (midpoint 68)
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
91801 by year
70 installs in the trailing twelve months vs 75 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 91801
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNPOWER | 127 | 0 | 3.26 | $4.63 |
| 2 | SUNRUN | 57 | 7 | 5.99 | $4.40 |
| 3 | TESLA | 54 | 2 | 6.27 | $5.03 |
| 4 | SOLAR OPTIMUM DESIGN ELECTRIC | 30 | 0 | 6.95 | $2.96 |
| 5 | TRUE POWER SOLAR | 27 | 0 | 4.57 | $4.65 |
| 6 | SWSS ELECTRIC | 20 | 2 | 5.07 | $3.35 |
| 7 | FREEDOM FOREVER | 15 | 2 | 6.88 | $3.85 |
| 8 | BURKE ELECTRIC | 12 | 0 | 3.46 | $5.01 |
| 9 | SOLARMAX | 12 | 0 | 10.23 | $3.10 |
| 10 | VERENGO | 10 | 0 | 4.89 | $5.11 |
| 11 | TRUEPOWER SOLAR | 9 | 0 | 6.69 | $4.64 |
| 12 | SOUTH WEST BUILDERS | 8 | 4 | 8.28 | $6.32 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 91803 Alhambra | 2.3 km | 557 | $4.25 | 41 |
| 91776 San Gabriel | 3.1 km | 670 | $4.03 | 46 |
| 91030 South Pasadena | 3.2 km | 978 | $4.25 | 56 |
| 91108 San Marino | 3.6 km | 584 | $4.43 | 42 |
| 91754 Monterey Park | 4.2 km | 836 | $4.15 | 47 |
| 90032 Los Angeles | 4.4 km | 272 | $5.08 | 36 |
Same city
Other zips in Alhambra
Equipment
What gets installed in 91801
Share of systems with a recorded brand
Modules
SUNPOWER21.6%
QCELLS NORTH AMERICA14.2%
REC GROUP6.4%
LG ELECTRONICS3.9%
PANASONIC CORPORATION OF NORTH AMERICA3.9%
Inverters
ENPHASE ENERGY37.7%
SUNPOWER21.4%
SOLAREDGE18.9%
TESLA6.0%
SMA AMERICA4.5%
Frequently asked
Quick answers about 91801
How many solar installations are there in 91801?
SolarDNA counts 751 active solar installations in Alhambra 91801, 733 of them residential, with data through April 29, 2026.
How much does solar cost in 91801?
The median residential system in 91801 cost $4.31 per watt over the trailing twelve months, $0.05/W above the California median.
Is solar growing in 91801?
Installations in 91801 are down 6.7%: 70 in the trailing twelve months versus 75 before.
Who installs solar in 91801?
SUNPOWER, SUNRUN, TESLA lead the 208 installers with systems in 91801. The full comp set is above.
Is 91801 a good market for solar sales?
91801 scores 40 out of 100 (Good, higher than 35% of U.S. zip markets).