Hayward, CA 94544 solar market data
Updated April 27, 2026 By The SolarDNA Data Team
Hayward 94544 has 3,341 solar installations at a median installed cost of $4.25/W, installations down 8.1% over the trailing twelve months, and a Market Score of 46 — higher than 73% of U.S. zip markets.
Versus California
How 94544 compares with the state
Installed cost
$0.02/W below
state median $4.26/W
Market score
46 vs 53
California scores 53
Share of state installs
0.15%
of 2.3M tracked statewide
Battery attach
10.3%
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: 205–251 installs (midpoint 228)
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
94544 by year
238 installs in the trailing twelve months vs 259 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 94544
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | CITADEL ROOFING AND SOLAR | 556 | 33 | 2.45 | $2.85 |
| 2 | SUNRUN | 548 | 65 | 5.46 | $4.47 |
| 3 | TESLA | 485 | 21 | 5.34 | $5.12 |
| 4 | SUNPOWER | 335 | 0 | 3.8 | $4.25 |
| 5 | BRIGHT OPS | 133 | 37 | 4.59 | $5.26 |
| 6 | AMERICAN ARRAY SOLAR | 74 | 0 | 4.93 | $3.64 |
| 7 | FREEDOM FOREVER | 73 | 10 | 5.88 | $4.84 |
| 8 | SEMPER SOLARIS | 59 | 2 | 5.11 | $4.13 |
| 9 | BETTER EARTH | 48 | 0 | 5.67 | $5.44 |
| 10 | PETERSENDEAN | 47 | 0 | 5.26 | $3.93 |
| 11 | CITADEL ROOFING SOLAR | 41 | 0 | 1.73 | $3.50 |
| 12 | SOLGEN ELECTRIC | 27 | 0 | 5.99 | $6.96 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 94545 Hayward | 2.7 km | 1,650 | $4.50 | 43 |
| 94542 Hayward | 2.9 km | 1,520 | $4.38 | 42 |
| 94541 Hayward | 4.5 km | 1,929 | $4.64 | 47 |
| 94587 Union City | 5.5 km | 3,106 | $4.34 | 53 |
| 94580 San Lorenzo | 7.2 km | 929 | $4.73 | 36 |
| 94546 Castro Valley | 7.2 km | 2,887 | $4.54 | 56 |
Same city
Other zips in Hayward
Equipment
What gets installed in 94544
Share of systems with a recorded brand
Modules
LONGI GREEN ENERGY TECHNOLOGY20.8%
QCELLS NORTH AMERICA13.7%
SUNPOWER12.3%
REC SOLAR6.8%
JA SOLAR5.6%
Inverters
SOLAREDGE33.4%
ENPHASE ENERGY31.0%
SUNPOWER10.9%
TESLA6.6%
ABB4.9%
Frequently asked
Quick answers about 94544
How many solar installations are there in 94544?
SolarDNA counts 3,341 active solar installations in Hayward 94544, 3,254 of them residential, with data through April 27, 2026.
How much does solar cost in 94544?
The median residential system in 94544 cost $4.25 per watt over the trailing twelve months, $0.02/W below the California median.
Is solar growing in 94544?
Installations in 94544 are down 8.1%: 238 in the trailing twelve months versus 259 before.
Who installs solar in 94544?
CITADEL ROOFING AND SOLAR, SUNRUN, TESLA lead the 277 installers with systems in 94544. The full comp set is above.
Is 94544 a good market for solar sales?
94544 scores 46 out of 100 (Great, higher than 73% of U.S. zip markets).