Discovery Bay, CA solar installation & market data
Updated April 20, 2026 By The SolarDNA Data Team
Discovery Bay has 2,632 solar installations across 1 zip code at a median installed cost of $4.20/W, installations up 4.9% over the trailing twelve months, and an installs-weighted Market Score of 50.
Active installations
2,632
Zip markets
1
Median cost
$4.20/W
12-mo growth
▲ 4.9%
Installers active
12
City Market Score
Great · installs-weighted across 1 zips
Best zip in Discovery Bay scores higher than 88% of U.S. zip markets.
Versus California
How Discovery Bay compares with the state
Installed cost
$0.06/W below
state median $4.26/W
Market score
50 vs 53
California scores 53
Share of state installs
0.12%
of 2.3M tracked statewide
Battery attach
11.3%
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
Next-12-month outlook: 158–194 installs (midpoint 176)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±10% band. Not a forecast of permits or policy.
Growth & pricing
Discovery Bay by year
172 installs in the trailing twelve months vs 164 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Discovery Bay
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 489 | 69 | 1 | $4.20 |
| 2 | TESLA | 370 | 12 | 1 | $5.12 |
| 3 | WEST COAST SOLAR | 269 | 5 | 1 | $3.83 |
| 4 | BRIGHT OPS | 139 | 11 | 1 | $4.36 |
| 5 | PETERSENDEAN | 92 | 0 | 1 | $3.90 |
| 6 | DEL SOL ENERGY | 81 | 0 | 1 | $3.71 |
| 7 | SUNGEVITY | 77 | 0 | 1 | $3.53 |
| 8 | SUNPOWER | 64 | 0 | 1 | $4.51 |
| 9 | FREEDOM FOREVER | 62 | 6 | 1 | $4.56 |
| 10 | CITADEL ROOFING AND SOLAR | 47 | 8 | 1 | $3.08 |
| 11 | SEMPER SOLARIS | 40 | 4 | 1 | $4.39 |
| 12 | HOOKED ON SOLAR | 28 | 0 | 1 | $4.32 |
Zip markets
Zips in Discovery Bay
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 94505 | 2,632 | $4.20 | 50 B |