Solar cost & payback in California
Short answer
In California, a home with a $150/month electric bill needs about a 3.7 kW solar system — roughly $7,850 after the 30% federal tax credit, saving about $1,801/year and paying back in ~4.4 years.
System size
3.7 kW
Cost after 30% credit
$7,850
Payback
4.4 yrs
20-yr net savings
$38,156
Solar in California
California averages about 5.5 peak sun hours a day and pays roughly 30¢/kWh. The figures above assume a $150/month bill and ~$3/watt installed, with the 30% federal tax credit. A bigger bill needs a bigger system; shading, roof orientation, and net-metering rules change the payback.
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Frequently asked questions
How much do solar panels cost in California?
For a $150/month bill, about a 3.7 kW system — roughly $11,214 before incentives, or $7,850 after the 30% federal tax credit. Larger bills need bigger, pricier systems.
Is solar worth it in California?
California gets about 5.5 peak sun hours a day and pays ~30¢/kWh. A typical system pays back in ~4.4 years and saves about $38,156 net over 20 years — a strong case.
What is the solar tax credit in California?
The 30% federal Residential Clean Energy Credit applies everywhere, including California — about $3,364 on the example system. California may add its own state incentives on top; check current programs.