Foothill Ranch, CA solar installation & market data
Updated April 21, 2026 By The SolarDNA Data Team
Foothill Ranch has 888 solar installations across 1 zip code at a median installed cost of $4.09/W, installations up 25.5% over the trailing twelve months, and an installs-weighted Market Score of 50.
Active installations
888
Zip markets
1
Median cost
$4.09/W
12-mo growth
▲ 25.5%
Installers active
12
City Market Score
Great · installs-weighted across 1 zips
Best zip in Foothill Ranch scores higher than 89% of U.S. zip markets.
Versus California
How Foothill Ranch compares with the state
Installed cost
$0.18/W below
state median $4.26/W
Market score
50 vs 53
California scores 53
Share of state installs
0.04%
of 2.3M tracked statewide
Battery attach
23.6%
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: 58–76 installs (midpoint 67)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±13% band. Not a forecast of permits or policy.
Growth & pricing
Foothill Ranch by year
59 installs in the trailing twelve months vs 47 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Foothill Ranch
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 238 | 12 | 1 | $4.80 |
| 2 | SUNRUN | 106 | 17 | 1 | $4.35 |
| 3 | SUNPOWER | 54 | 0 | 1 | $4.50 |
| 4 | BRITE ENERGY | 24 | 0 | 1 | $4.25 |
| 5 | ORANGE COUNTY CONTRACTING SERVICES | 19 | 10 | 1 | $4.24 |
| 6 | SOLAR OPTIMUM DESIGN ELECTRIC | 19 | 0 | 1 | $2.70 |
| 7 | ALTAIR SOLAR | 17 | 0 | 1 | $2.75 |
| 8 | SOLARMAX | 17 | 0 | 1 | $2.96 |
| 9 | BRIGHT OPS | 16 | 0 | 1 | $3.90 |
| 10 | AIKYUM | 12 | 0 | 1 | $2.61 |
| 11 | SEMPER SOLARIS | 12 | 0 | 1 | $3.81 |
| 12 | VERENGO | 12 | 0 | 1 | $4.97 |
Zip markets
Zips in Foothill Ranch
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 92610 | 888 | $4.09 | 50 B |