Solar panels in California: cost & savings
California averages 5.5 peak sun hours/day and $0.31/kWh electricity. Here's what solar looks like for a typical home.
Typical California home estimate
| Average electricity rate | $0.31/kWh |
| Peak sun hours (daily avg) | 5.5 |
| Recommended system size | 6.7 kW (~17 panels) |
| System cost (before incentives) | $20,174 |
| Cost after 30% federal tax credit | $14,122 |
| Estimated payback period | 4.1 years |
| 25-year net savings | $100,016 |
Incentives: SGIP battery rebates; property-tax exclusion for solar. The 30% federal tax credit applies in every state. Retail-rate net metering is broadly available.
How California compares to the rest of the US
Two numbers drive solar economics: your electricity rate and how much sun your roof gets. Here's where California stands against the national average.
| Electricity rate | $0.31/kWh (86% higher than the $0.17 US avg) |
| Daily peak sun hours | 5.5 (23% more than the 4.5 US avg) |
| Net metering | Broadly available |
California is one of the stronger states for residential solar: both above-average electricity prices and above-average sunshine work in your favor. That combination is why the payback here (~4.1 years) tends to beat the national norm.
Calculate your own California savings
Adjust the numbers to match your actual electric bill:
Estimate your solar savings
Two quick inputs. We use your state's real electricity rate and sun hours.
Is solar worth it in California?
With California's electricity at $0.31/kWh and 5.5 daily sun hours, a typical solar system pays for itself in about 4.1 years and produces an estimated $100,016 in net savings over its 25-year life, after applying the 30% federal Investment Tax Credit. The higher your bill and the more sun your roof gets, the faster the payback.
These figures are estimates. Get free quotes from local California installers to see real pricing for your roof.
California solar FAQ
How many solar panels do I need in California?
A typical California home needs roughly 17 standard 400-watt panels (about a 6.7 kW system) to offset its electricity use, given California's 5.5 daily peak sun hours. A higher bill or shadier roof pushes that number up.
Does California have net metering?
Yes — California broadly offers net metering, so the excess power your panels send to the grid credits your bill and improves your payback. SGIP battery rebates; property-tax exclusion for solar. The 30% federal tax credit applies in every state.
What's the payback period for solar in California?
For a typical $279/month bill, the estimated payback is about 4.1 years, after which the power your panels produce is essentially free for the remaining ~21 years of the system's life.