Marshall, CA 94940 solar market data
Updated September 10, 2025Provisional score · under 500 installs By The SolarDNA Data Team
Marshall 94940 has 28 solar installations at a median installed cost of $5.12/W, recent growth not yet measurable, and a Market Score of 34 — higher than 13% of U.S. zip markets.
Versus California
How 94940 compares with the state
Installed cost
$0.85/W above
state median $4.26/W
Market score
34 vs 53
California scores 53
Share of state installs
0.00%
of 2.3M tracked statewide
Battery attach
14.3%
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
Growth & pricing
94940 by year
3 installs in the trailing twelve months vs 4 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 94940
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUN FIRST | 6 | 0 | 6.41 | $4.42 |
| 2 | SOLARCRAFT SERVICES | 3 | 1 | 34.1 | $8.06 |
| 3 | J J ELECTRIC | 2 | 0 | 2.52 | $3.70 |
| 4 | PAC SOLAR | 2 | 0 | 6.27 | $3.60 |
| 5 | TESLA | 2 | 0 | 4.08 | $2.57 |
| 6 | SUMMIT TECHNOLOGY GROUP | 1 | 1 | 8.16 | $9.47 |
| 7 | VITAL ENERGY SOLUTIONS | 1 | 1 | 9.22 | $6.70 |
| 8 | ADVANCE SOLAR HYDRO WIND POWER | 1 | 0 | 6.72 | $5.95 |
| 9 | AMERICAN SOLAR | 1 | 0 | 37.95 | $11.10 |
| 10 | GAF | 1 | 0 | 3.55 | $12.09 |
| 11 | MARIN SOLAR | 1 | 0 | 3.6 | $7.84 |
| 12 | MICHAEL AND SUN SOLAR | 1 | 0 | 9.62 | $3.30 |
Equipment
What gets installed in 94940
Share of systems with a recorded brand
Modules
SUNPOWER25.9%
ENPHASE ENERGY11.1%
LG ELECTRONICS11.1%
TESLA11.1%
QCELLS NORTH AMERICA7.4%
Inverters
ENPHASE ENERGY40.9%
SUNPOWER27.3%
SOLAREDGE18.2%
DELTA ELECTRONICS4.5%
SMA AMERICA4.5%
Frequently asked
Quick answers about 94940
How many solar installations are there in 94940?
SolarDNA counts 28 active solar installations in Marshall 94940, 22 of them residential, with data through September 10, 2025.
How much does solar cost in 94940?
The median residential system in 94940 cost $5.12 per watt over the trailing twelve months, $0.85/W above the California median.
Is solar growing in 94940?
Recent growth cannot be measured yet for 94940: too few recent installs (data runs through September 10, 2025).
Who installs solar in 94940?
SUN FIRST, SOLARCRAFT SERVICES, J J ELECTRIC lead the 18 installers with systems in 94940. The full comp set is above.
Is 94940 a good market for solar sales?
94940 scores 34 out of 100 (Fair, higher than 13% of U.S. zip markets). With under 500 installations the score is provisional.