Solar in Rancho Santa Margarita, CA
With SDG&E's electricity at about 45.1¢ per kWh and 1,688 kWh of sun per kW, solar is worth it for a typical Rancho Santa Margarita home today: about a 11.4-year payback.
- Payback, typical home
- 11.4 yrsCalifornia: 10.9 yrs
- 25-year net
- $19,992after paying $10,700
- Sun
- 1,688kWh per kW per year
- Electricity
- 45.1¢150% above U.S. average
A typical Rancho Santa Margarita home, by the numbers
| Utility | SDG&E |
|---|---|
| Electricity use | 296 kWh a month |
| Best-value system | 3 kW, about 7 panels, 5,065 kWh a year (143% of use) |
| Cost | $10,700 |
| First-year savings | $862 |
| Payback | 11.4 years |
| Exported power | 3.7¢/kWh (SDG&E) |
Cash purchase, no federal credit, 4.0% yearly rate increases. Run it with your own numbers.
Homes in Rancho Santa Margarita
- Owner-occupied homes
- 73%
- Single-family detached
- 54%
- Median home value
- $971k
- Median year built
- 1992
- Population
- 46,990
- Solar installs, last 3 years*
- 644
- Roofs suitable for solar†
- 98%
Census ACS 2020–2024. *Installations in public records for this area's ZIP codes. †Share of 11,174 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Installers working in Rancho Santa Margarita
Companies with the most installations in Rancho Santa Margarita's ZIP codes over the last 3 years, from public records. We don't take payment for placement.
- Sunrun 130 installs
- Tesla Energy 59 installs
- Freedom Forever 51 installs
- SunPower 43 installs
- Orange County Contracting Services 40 installs
- Better Earth Electric 17 installs
- Pacific Sun Technologies 17 installs
- SOLAR OPTIMUM DESIGN & ELECTRICAL 14 installs
- Bitterend Ventures INC DBA B V I Solar 9 installs
- Bright OPS 8 installs
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Rancho Santa Margarita
Is solar worth it in Rancho Santa Margarita, CA?
For a typical home in Rancho Santa Margarita, solar is worth it at 2026 prices: a 3 kW system costs about $10,700 after state incentives, saves about $862 in year one and pays back in about 11.4 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Rancho Santa Margarita?
About 1,688 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 2% more than the California average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Rancho Santa Margarita?
Most homes in Rancho Santa Margarita are served by SDG&E, at about 45.1¢ per kWh on average. Some areas are served by Southern California Edison (SCE).
How much do solar panels cost in Rancho Santa Margarita?
A fair cash price is around $2.90 per watt before incentives, so about $10,700 for a 3 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Mission Viejo 11.4 yrs
- Lake Forest 11.4 yrs
- Laguna Hills 10.6 yrs
- Aliso Viejo 10.6 yrs
- Laguna Niguel 11.4 yrs
- San Juan Capistrano 11.4 yrs
- Irvine 10.6 yrs
- Temescal Valley 10.5 yrs
- All of California
Data: PVWatts (National Laboratory of the Rockies), EIA-861 2025 adjusted to 2026, U.S. Census ACS, LBNL Tracking the Sun, state policy research as of October 2026.