Solar Panel Cost in Ontario, California (2026 Prices)
Ontario, California — SCE service area
What Does Solar Cost in Ontario in 2026?
Solar panel prices have stabilized in California. In Ontario, a typical residential system runs around $3/watt installed — so a 7kW system is ~$21,000 and a 10kW system is ~$30,000 before any incentives.
| System Size | Est. Cost (~$3/W) | Est. Annual Savings | Best For |
|---|---|---|---|
| 6kW | $18,000 | $2,412/yr | Bills under $146/mo |
| 7kW | $21,000 | $2,412/yr | Most common residential size |
| 10kW | $30,000 | $2,412/yr | Bills over $234/mo or EV |
| 12kW+ | $36,000 | $2,412/yr | High usage + battery + EV |
What Affects Solar Pricing in Ontario?
- ›Installer competition in Ontario — more quotes means more competitive bids
- ›Panel brand and efficiency tier (budget vs. premium)
- ›Roof condition, pitch, and shading
- ›Southern California Edison interconnection fees and NEM 3.0 enrollment
- ›Battery storage addition (adds $8,000-$15,000 typically)
More Ontario Solar Guides
Ready to See Real Numbers for Ontario?
Estimates on this page are based on local averages. A licensed installer will give you exact numbers for your home.
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