Vallejo, CA 94591 solar market data
Updated April 23, 2026 By The SolarDNA Data Team
Vallejo 94591 has 3,769 solar installations at a median installed cost of $4.68/W, installations up 7.2% over the trailing twelve months, and a Market Score of 48 — higher than 80% of U.S. zip markets.
Versus California
How 94591 compares with the state
Installed cost
$0.42/W above
state median $4.26/W
Market score
48 vs 53
California scores 53
Share of state installs
0.17%
of 2.3M tracked statewide
Battery attach
13.6%
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
Next-12-month outlook: 305–373 installs (midpoint 339)
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
94591 by year
327 installs in the trailing twelve months vs 305 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 94591
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 755 | 109 | 5.75 | $4.43 |
| 2 | TESLA | 566 | 16 | 5.72 | $5.12 |
| 3 | BRIGHT OPS | 176 | 48 | 5.3 | $4.70 |
| 4 | SUNPOWER | 174 | 0 | 7.13 | $4.80 |
| 5 | FREEDOM FOREVER | 141 | 14 | 5.44 | $5.05 |
| 6 | V3 ELECTRIC | 116 | 7 | 5.09 | $4.33 |
| 7 | AMBROSE SOLAR | 99 | 6 | 7.17 | $4.86 |
| 8 | PETERSENDEAN | 81 | 0 | 5.23 | $4.01 |
| 9 | ESP CONTRACTING | 72 | 1 | 5.56 | $4.43 |
| 10 | NORTH VALLEY | 69 | 16 | 5.88 | $5.21 |
| 11 | SEMPER SOLARIS | 54 | 5 | 5 | $4.36 |
| 12 | HIGH DEFINITION SOLAR | 47 | 0 | 2.51 | $7.71 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 94590 Vallejo | 3.2 km | 1,190 | $5.03 | 47 |
| 94525 Crockett | 5.2 km | 205 | $5.12 | 35 |
| 94510 Benicia | 5.6 km | 2,198 | $4.51 | 53 |
| 94569 Port Costa | 6.3 km | 18 | $5.12 | 34 |
| 94503 American Canyon | 8.5 km | 1,946 | $4.34 | 45 |
| 94572 Rodeo | 8.5 km | 474 | $5.04 | 37 |
Same city
Other zips in Vallejo
Equipment
What gets installed in 94591
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA20.2%
REC SOLAR7.6%
SUNPOWER7.6%
CSI SOLAR7.6%
LONGI GREEN ENERGY TECHNOLOGY6.4%
Inverters
SOLAREDGE36.4%
ENPHASE ENERGY30.6%
TESLA7.7%
FRONIUS USA5.1%
ABB4.5%
Frequently asked
Quick answers about 94591
How many solar installations are there in 94591?
SolarDNA counts 3,769 active solar installations in Vallejo 94591, 3,742 of them residential, with data through April 23, 2026.
How much does solar cost in 94591?
The median residential system in 94591 cost $4.68 per watt over the trailing twelve months, $0.42/W above the California median.
Is solar growing in 94591?
Installations in 94591 are up 7.2%: 327 in the trailing twelve months versus 305 before.
Who installs solar in 94591?
SUNRUN, TESLA, BRIGHT OPS lead the 304 installers with systems in 94591. The full comp set is above.
Is 94591 a good market for solar sales?
94591 scores 48 out of 100 (Great, higher than 80% of U.S. zip markets).