Petrolia, CA solar installation & market data
Updated December 5, 2025Provisional score · under 500 installs By The SolarDNA Data Team
Petrolia has 18 solar installations across 1 zip code at a median installed cost of $3.65/W, recent growth not yet measurable, and an installs-weighted Market Score of 41.
Active installations
18
Zip markets
1
Median cost
$3.65/W
12-mo growth
—
Installers active
10
City Market Score
Good · installs-weighted across 1 zips
Best zip in Petrolia scores higher than 45% of U.S. zip markets.
Versus California
How Petrolia compares with the state
Installed cost
$0.62/W below
state median $4.26/W
Market score
41 vs 53
California scores 53
Share of state installs
0.00%
of 2.3M tracked statewide
Battery attach
5.6%
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
Petrolia by year
3 installs in the trailing twelve months vs 2 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Petrolia
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | GREENWIRED | 2 | 1 | 1 | $4.60 |
| 2 | FREEDOM FOREVER | 2 | 0 | 1 | $5.18 |
| 3 | ARNOUL ELECTRIC | 1 | 1 | 1 | $1.07 |
| 4 | CONCEPTUAL ELECTRIC | 1 | 0 | 1 | $5.89 |
| 5 | CORNERSTONE CONSTRUCTION | 1 | 0 | 1 | $13.07 |
| 6 | LITTLE HOUSE | 1 | 0 | 1 | — |
| 7 | ROGER | 1 | 0 | 1 | $0.61 |
| 8 | SIX RIVERS SOLAR | 1 | 0 | 1 | $7.32 |
| 9 | SOLAR PROJECTS UNLIMITED | 1 | 0 | 1 | — |
| 10 | SWELL CONTRACTORS | 1 | 0 | 1 | — |
Zip markets
Zips in Petrolia
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 95558 | 18 | $3.65 | 41 C |