Port Costa, CA solar installation & market data
Updated June 24, 2025Provisional score · under 500 installs By The SolarDNA Data Team
Port Costa has 18 solar installations across 1 zip code at a median installed cost of $5.12/W, recent growth not yet measurable, and an installs-weighted Market Score of 34.
Active installations
18
Zip markets
1
Median cost
$5.12/W
12-mo growth
—
Installers active
12
City Market Score
Fair · installs-weighted across 1 zips
Best zip in Port Costa scores higher than 13% of U.S. zip markets.
Versus California
How Port Costa compares with the state
Installed cost
$0.86/W above
state median $4.26/W
Market score
34 vs 53
California scores 53
Share of state installs
0.00%
of 2.3M tracked statewide
Battery attach
11.1%
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
Port Costa by year
3 installs in the trailing twelve months vs 1 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Port Costa
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | AMERICAN ARRAY SOLAR | 3 | 0 | 1 | $9.04 |
| 2 | TESLA | 3 | 0 | 1 | $4.18 |
| 3 | GOMAXXX | 1 | 1 | 1 | $3.27 |
| 4 | DIABLO SOLAR SERVICES | 1 | 0 | 1 | — |
| 5 | FREEDOM FOREVER | 1 | 0 | 1 | $11.29 |
| 6 | NEXTSOLAR | 1 | 0 | 1 | $3.46 |
| 7 | NRG CLEAN ENERGY | 1 | 0 | 1 | $3.52 |
| 8 | RICHARD HEATH ASSOCIATES | 1 | 0 | 1 | — |
| 9 | SEMPER SOLARIS | 1 | 0 | 1 | — |
| 10 | SKYTECH SOLAR | 1 | 0 | 1 | $3.48 |
| 11 | SOLAR HARDWARECOM | 1 | 0 | 1 | $4.18 |
| 12 | SUNLIGHT POWER | 1 | 0 | 1 | $11.22 |
Zip markets
Zips in Port Costa
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 94569 | 18 | $5.12 | 34 D |