Alamo, CA solar installation & market data
Updated April 22, 2026 By The SolarDNA Data Team
Alamo has 2,117 solar installations across 1 zip code at a median installed cost of $4.22/W, installations up 32.7% over the trailing twelve months, and an installs-weighted Market Score of 57.
Active installations
2,117
Zip markets
1
Median cost
$4.22/W
12-mo growth
▲ 32.7%
Installers active
12
City Market Score
Excellent · installs-weighted across 1 zips
Best zip in Alamo scores higher than 99% of U.S. zip markets.
Versus California
How Alamo 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
Alamo 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 Alamo
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 320 | 11 | 1 | $5.09 |
| 2 | SUNRUN | 162 | 9 | 1 | $4.00 |
| 3 | DIABLO SOLAR SERVICES | 121 | 5 | 1 | $4.33 |
| 4 | SKY POWER SOLAR | 116 | 0 | 1 | $3.94 |
| 5 | WEST COAST SOLAR | 67 | 0 | 1 | $3.32 |
| 6 | SOLAR TECHNOLOGIES | 66 | 4 | 1 | $4.67 |
| 7 | SUNPOWER | 53 | 2 | 1 | $4.35 |
| 8 | YOUR ENERGY SOLUTIONS | 48 | 5 | 1 | $3.60 |
| 9 | PETERSENDEAN | 48 | 0 | 1 | $3.73 |
| 10 | SEMPER SOLARIS | 42 | 1 | 1 | $4.00 |
| 11 | SEMPER FIDELIS CONSTRUCTION | 38 | 0 | 1 | $3.86 |
| 12 | GREEN AIR HEATING AND AIR CONDITIONING | 34 | 1 | 1 | $6.15 |
Zip markets
Zips in Alamo
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 94507 | 2,117 | $4.22 | 57 A |