Diablo, CA solar installation & market data
Updated April 24, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Diablo has 125 solar installations across 1 zip code at a median installed cost of $4.57/W, recent growth not yet measurable, and an installs-weighted Market Score of 38.
Active installations
125
Zip markets
1
Median cost
$4.57/W
12-mo growth
—
Installers active
12
City Market Score
Fair · installs-weighted across 1 zips
Best zip in Diablo scores higher than 19% of U.S. zip markets.
Versus California
How Diablo compares with the state
Installed cost
$0.30/W above
state median $4.26/W
Market score
38 vs 53
California scores 53
Share of state installs
0.01%
of 2.3M tracked statewide
Battery attach
20.0%
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
Diablo by year
12 installs in the trailing twelve months vs 13 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Diablo
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 18 | 2 | 1 | $4.88 |
| 2 | SOLAR TECHNOLOGIES | 8 | 2 | 1 | $4.48 |
| 3 | SKY POWER SOLAR | 8 | 0 | 1 | $3.31 |
| 4 | SUNRUN | 7 | 1 | 1 | $4.56 |
| 5 | SEMPER FIDELIS CONSTRUCTION | 6 | 0 | 1 | $5.00 |
| 6 | HOOKED ON SOLAR | 5 | 1 | 1 | $4.64 |
| 7 | YOUR ENERGY SOLUTIONS | 4 | 1 | 1 | $5.56 |
| 8 | CITADEL ROOFING AND SOLAR | 3 | 1 | 1 | $3.69 |
| 9 | AMBROSE SOLAR | 3 | 0 | 1 | $7.14 |
| 10 | DIABLO SOLAR SERVICES | 3 | 0 | 1 | $4.18 |
| 11 | NEXT ENERGY | 3 | 0 | 1 | $7.72 |
| 12 | COOL EARTH SOLAR | 2 | 0 | 1 | $2.36 |
Zip markets
Zips in Diablo
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 94528 | 125 | $4.57 | 38 D |