Stevenson Ranch, CA 91381 solar market data
Updated May 12, 2026 By The SolarDNA Data Team
Stevenson Ranch 91381 has 3,298 solar installations at a median installed cost of $4.01/W, installations down 34.2% over the trailing twelve months, and a Market Score of 41 — higher than 38% of U.S. zip markets.
Versus California
How 91381 compares with the state
Installed cost
$0.26/W below
state median $4.26/W
Market score
41 vs 53
California scores 53
Share of state installs
0.15%
of 2.3M tracked statewide
Battery attach
13.1%
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: 196–265 installs (midpoint 230)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±15% band. Not a forecast of permits or policy.
Growth & pricing
91381 by year
271 installs in the trailing twelve months vs 412 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 91381
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNNOVA ENERGY | 902 | 0 | 3.98 | $3.80 |
| 2 | SUNPOWER | 458 | 26 | 4.71 | $4.25 |
| 3 | SUNRUN | 300 | 59 | 6.23 | $3.52 |
| 4 | TESLA | 297 | 19 | 8.56 | $4.26 |
| 5 | GREEN CONVERGENCE | 148 | 9 | 9.8 | $5.31 |
| 6 | VERENGO | 98 | 0 | 6.21 | $5.15 |
| 7 | G A F ENERGY | 76 | 59 | 3.86 | $6.26 |
| 8 | SUNNOVA ENERGY CORPORATION | 59 | 11 | 3.59 | — |
| 9 | REC SOLAR COMMERCIAL | 49 | 0 | 6.59 | $5.29 |
| 10 | COMPLETE SOLAR | 34 | 31 | 8.44 | $4.25 |
| 11 | SOLAR OPTIMUM DESIGN ELECTRIC | 34 | 0 | 9.73 | $2.70 |
| 12 | LA SOLAR GROUP | 32 | 0 | 8.06 | $3.46 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 91355 Valencia | 5.9 km | 1,932 | $4.25 | 56 |
| 91321 Newhall | 8.3 km | 1,618 | $4.32 | 49 |
| 91354 Valencia | 10.4 km | 4,064 | $4.35 | 47 |
| 93063 Simi Valley | 10.4 km | 4,349 | $4.40 | 60 |
| 91384 Castaic | 11.8 km | 2,504 | $4.67 | 59 |
| 91350 Santa Clarita | 12.1 km | 5,679 | $4.33 | 49 |
Equipment
What gets installed in 91381
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA45.6%
SUNPOWER16.7%
LONGI GREEN ENERGY TECHNOLOGY4.7%
LG ELECTRONICS4.4%
TESLA3.7%
Inverters
ENPHASE ENERGY54.9%
SUNPOWER12.5%
SOLAREDGE11.4%
TESLA5.5%
POWER-ONE5.2%
Frequently asked
Quick answers about 91381
How many solar installations are there in 91381?
SolarDNA counts 3,298 active solar installations in Stevenson Ranch 91381, 3,293 of them residential, with data through May 12, 2026.
How much does solar cost in 91381?
The median residential system in 91381 cost $4.01 per watt over the trailing twelve months, $0.26/W below the California median.
Is solar growing in 91381?
Installations in 91381 are down 34.2%: 271 in the trailing twelve months versus 412 before.
Who installs solar in 91381?
SUNNOVA ENERGY, SUNPOWER, SUNRUN lead the 263 installers with systems in 91381. The full comp set is above.
Is 91381 a good market for solar sales?
91381 scores 41 out of 100 (Good, higher than 38% of U.S. zip markets).