Penngrove, CA solar installation & market data
Updated March 30, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Penngrove has 488 solar installations across 1 zip code at a median installed cost of $4.39/W, recent growth not yet measurable, and an installs-weighted Market Score of 40.
Active installations
488
Zip markets
1
Median cost
$4.39/W
12-mo growth
—
Installers active
12
City Market Score
Good · installs-weighted across 1 zips
Best zip in Penngrove scores higher than 35% of U.S. zip markets.
Versus California
How Penngrove compares with the state
Installed cost
$0.12/W above
state median $4.26/W
Market score
40 vs 53
California scores 53
Share of state installs
0.02%
of 2.3M tracked statewide
Battery attach
10.4%
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
Growth & pricing
Penngrove by year
24 installs in the trailing twelve months vs 20 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Penngrove
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 57 | 4 | 1 | $4.09 |
| 2 | TESLA | 42 | 1 | 1 | $5.10 |
| 3 | PETERSENDEAN | 20 | 0 | 1 | $3.61 |
| 4 | ROCKIN ROOFERS | 19 | 0 | 1 | $4.25 |
| 5 | NORTHERN PACIFIC POWER | 16 | 0 | 1 | $4.00 |
| 6 | SOLARCRAFT SERVICES | 15 | 1 | 1 | $4.83 |
| 7 | SEMPER SOLARIS | 14 | 2 | 1 | $4.87 |
| 8 | RGS ENERGY | 13 | 0 | 1 | $6.57 |
| 9 | SUNPOWER | 11 | 0 | 1 | $5.06 |
| 10 | WESTCOAST SOLAR ENERGY | 9 | 0 | 1 | $3.46 |
| 11 | SUN FIRST | 8 | 0 | 1 | $5.64 |
| 12 | FREEDOM FOREVER | 7 | 1 | 1 | $4.11 |
Zip markets
Zips in Penngrove
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 94951 | 488 | $4.39 | 40 C |