Castroville, CA solar installation & market data
Updated May 13, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Castroville has 384 solar installations across 1 zip code at a median installed cost of $4.94/W, recent growth not yet measurable, and an installs-weighted Market Score of 37.
Active installations
384
Zip markets
1
Median cost
$4.94/W
12-mo growth
—
Installers active
12
City Market Score
Fair · installs-weighted across 1 zips
Best zip in Castroville scores higher than 18% of U.S. zip markets.
Versus California
How Castroville compares with the state
Installed cost
$0.68/W above
state median $4.26/W
Market score
37 vs 53
California scores 53
Share of state installs
0.02%
of 2.3M tracked statewide
Battery attach
9.1%
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
Growth & pricing
Castroville by year
29 installs in the trailing twelve months vs 9 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Castroville
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 130 | 17 | 1 | $4.48 |
| 2 | TESLA | 57 | 0 | 1 | $5.12 |
| 3 | BRIGHT FUTURE SOLAR ENERGY | 7 | 1 | 1 | $4.34 |
| 4 | ALLTERRA SOLAR | 6 | 1 | 1 | $4.94 |
| 5 | CALIFORNIA SOLAR SYSTEMS | 6 | 0 | 1 | $3.91 |
| 6 | SOLAR TECHNOLOGIES | 5 | 1 | 1 | $7.90 |
| 7 | ESP CONTRACTING | 5 | 0 | 1 | $4.63 |
| 8 | SCUDDER ROOFING SUN ENERGY | 5 | 0 | 1 | $4.09 |
| 9 | SUNGEVITY | 5 | 0 | 1 | $4.13 |
| 10 | SOLCIUS | 4 | 0 | 1 | $7.25 |
| 11 | BRIGHT OPS | 3 | 2 | 1 | — |
| 12 | ENGIE SERVICES USA | 3 | 0 | 1 | — |
Zip markets
Zips in Castroville
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 95012 | 384 | $4.94 | 37 D |