Alamo, CA 94507 solar market data
Updated April 22, 2026 By The SolarDNA Data Team
Alamo 94507 has 2,117 solar installations at a median installed cost of $4.22/W, installations up 32.7% over the trailing twelve months, and a Market Score of 57 — higher than 99% of U.S. zip markets.
Zip Market Score
Excellent · higher than 99% of zips
Versus California
How 94507 compares with the state
Installed cost
$0.05/W below
state median $4.26/W
Market score
57 vs 53
California scores 53
Share of state installs
0.09%
of 2.3M tracked statewide
Battery attach
12.4%
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: 131–177 installs (midpoint 154)
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
94507 by year
134 installs in the trailing twelve months vs 101 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 94507
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 320 | 11 | 9.89 | $5.09 |
| 2 | SUNRUN | 162 | 9 | 9.35 | $4.00 |
| 3 | DIABLO SOLAR SERVICES | 121 | 5 | 9.85 | $4.33 |
| 4 | SKY POWER SOLAR | 116 | 0 | 11.57 | $3.94 |
| 5 | WEST COAST SOLAR | 67 | 0 | 11.46 | $3.32 |
| 6 | SOLAR TECHNOLOGIES | 66 | 4 | 10.66 | $4.67 |
| 7 | SUNPOWER | 53 | 2 | 10.12 | $4.35 |
| 8 | YOUR ENERGY SOLUTIONS | 48 | 5 | 9.24 | $3.60 |
| 9 | PETERSENDEAN | 48 | 0 | 8.62 | $3.73 |
| 10 | SEMPER SOLARIS | 42 | 1 | 9.32 | $4.00 |
| 11 | SEMPER FIDELIS CONSTRUCTION | 38 | 0 | 9 | $3.86 |
| 12 | GREEN AIR HEATING AND AIR CONDITIONING | 34 | 1 | 10.91 | $6.15 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 94595 Walnut Creek | 4.8 km | 1,125 | $4.27 | 47 |
| 94528 Diablo | 5.2 km | 125 | $4.57 | 38 |
| 94596 Walnut Creek | 6.4 km | 1,320 | $4.23 | 47 |
| 94526 Danville | 6.7 km | 3,531 | $4.16 | 58 |
| 94598 Walnut Creek | 7.3 km | 2,819 | $4.29 | 50 |
| 94597 Walnut Creek | 8.4 km | 1,222 | $4.10 | 46 |
Equipment
What gets installed in 94507
Share of systems with a recorded brand
Modules
SUNPOWER17.1%
LG ELECTRONICS10.3%
QCELLS NORTH AMERICA9.8%
SANYO ELECTRIC OF PANASONIC GROUP6.1%
REC GROUP4.9%
Inverters
ENPHASE ENERGY29.7%
SOLAREDGE27.6%
SUNPOWER13.1%
SMA AMERICA8.8%
TESLA7.4%
Frequently asked
Quick answers about 94507
How many solar installations are there in 94507?
SolarDNA counts 2,117 active solar installations in Alamo 94507, 2,108 of them residential, with data through April 22, 2026.
How much does solar cost in 94507?
The median residential system in 94507 cost $4.22 per watt over the trailing twelve months, $0.05/W below the California median.
Is solar growing in 94507?
Installations in 94507 are up 32.7%: 134 in the trailing twelve months versus 101 before.
Who installs solar in 94507?
TESLA, SUNRUN, DIABLO SOLAR SERVICES lead the 274 installers with systems in 94507. The full comp set is above.
Is 94507 a good market for solar sales?
94507 scores 57 out of 100 (Excellent, higher than 99% of U.S. zip markets).