Rancho Santa Margarita, CA solar installation & market data
Updated April 1, 2026 By The SolarDNA Data Team
Rancho Santa Margarita has 2,378 solar installations across 1 zip code at a median installed cost of $4.24/W, installations up 19.0% over the trailing twelve months, and an installs-weighted Market Score of 53.
Active installations
2,378
Zip markets
1
Median cost
$4.24/W
12-mo growth
▲ 19.0%
Installers active
12
City Market Score
Excellent · installs-weighted across 1 zips
Best zip in Rancho Santa Margarita scores higher than 96% of U.S. zip markets.
Versus California
How Rancho Santa Margarita compares with the state
Installed cost
$0.02/W below
state median $4.26/W
Market score
53 vs 53
California scores 53
Share of state installs
0.11%
of 2.3M tracked statewide
Battery attach
17.8%
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: 148–180 installs (midpoint 164)
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
Rancho Santa Margarita by year
150 installs in the trailing twelve months vs 126 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Rancho Santa Margarita
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 405 | 15 | 1 | $5.10 |
| 2 | SUNRUN | 342 | 29 | 1 | $4.29 |
| 3 | SUNPOWER | 129 | 0 | 1 | $4.77 |
| 4 | FREEDOM FOREVER | 56 | 22 | 1 | $4.47 |
| 5 | ORANGE COUNTY CONTRACTING SERVICES | 51 | 20 | 1 | $3.39 |
| 6 | PACIFIC SUN | 49 | 0 | 1 | $3.72 |
| 7 | AMERICAN SOLAR DIRECT | 47 | 0 | 1 | $6.27 |
| 8 | SUNGEVITY | 46 | 0 | 1 | $3.76 |
| 9 | SULLIVAN SOLAR POWER | 44 | 0 | 1 | $4.23 |
| 10 | SEMPER SOLARIS | 43 | 0 | 1 | $3.85 |
| 11 | VERENGO | 43 | 0 | 1 | $3.95 |
| 12 | PEAK POWER SOLUTIONS | 37 | 0 | 1 | $5.23 |
Zip markets
Zips in Rancho Santa Margarita
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 92688 | 2,378 | $4.24 | 53 A |