Solar in Ontario, CA
With Southern California Edison (SCE)'s electricity at about 33.8¢ per kWh and 1,689 kWh of sun per kW, solar is worth it for a typical Ontario home today: about a 10.5-year payback.
- Payback, typical home
- 10.5 yrsCalifornia: 10.9 yrs
- 25-year net
- $22,910after paying $10,700
- Sun
- 1,689kWh per kW per year
- Electricity
- 33.8¢88% above U.S. average
A typical Ontario home, by the numbers
| Utility | Southern California Edison (SCE) |
|---|---|
| Electricity use | 468 kWh a month |
| Best-value system | 3 kW, about 7 panels, 5,067 kWh a year (90% of use) |
| Cost | $10,700 |
| First-year savings | $935 |
| Payback | 10.5 years |
| Exported power | 4.6¢/kWh (Southern California Edison (SCE)) |
Cash purchase, no federal credit, 4.0% yearly rate increases. Run it with your own numbers.
Homes in Ontario
- Owner-occupied homes
- 58%
- Single-family detached
- 58%
- Median home value
- $608k
- Median year built
- 1980
- Population
- 180,547
- Solar installs, last 3 years*
- 5,725
- Roofs suitable for solar†
- 89%
Census ACS 2020–2024. *Installations in public records for this area's ZIP codes. †Share of 37,647 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Installers working in Ontario
Companies with the most installations in Ontario's ZIP codes over the last 3 years, from public records. We don't take payment for placement.
- SunPower 1,389 installs
- Sunrun 909 installs
- Sunnova 611 installs
- GAF Energy 439 installs
- Complete Solar 217 installs
- Bright Planet 146 installs
- Freedom Forever 127 installs
- Grid Alternatives 121 installs
- V3 Electric 117 installs
- Bright OPS 108 installs
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Ontario
Is solar worth it in Ontario, CA?
For a typical home in Ontario, solar is worth it at 2026 prices: a 3 kW system costs about $10,700 after state incentives, saves about $935 in year one and pays back in about 10.5 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Ontario?
About 1,689 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 Ontario?
Most homes in Ontario are served by Southern California Edison (SCE), at about 33.8¢ per kWh on average.
How much do solar panels cost in Ontario?
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
- Eastvale 10.5 yrs
- Montclair 10.6 yrs
- Chino 10.5 yrs
- Upland 10.5 yrs
- Rancho Cucamonga 10.6 yrs
- Jurupa Valley 10.5 yrs
- Norco 10.5 yrs
- Claremont 10.6 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.