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Solar Panel Cost in California
6 kW system cost and incentives for California homeowners.
By Jessica Martinez · Updated June 20266 kW system cost and incentives for California homeowners.
By Jessica Martinez · Updated June 2026A 6 kW home solar system in California runs about $24,840 before incentives. For California homeowners, the 30% federal tax credit brings that to roughly $17,388 out of pocket, a difference of about $7,452.
PG&E, SCE, and SDG&E rates are among the steepest in the country. California excludes solar equipment from property tax reassessment. The solar cost calculator and system size calculator can turn that into a figure based on your actual California bill.
| System size | 6 kW |
|---|---|
| Price before incentives | $24,840 |
| 30% federal tax credit | -$7,452 |
| Price after credit | $17,388 |
System size in California should track your electricity use, not a flat 6 kW default. Run your zip code and monthly bill through the system size calculator to see how many panels your California home actually needs.
The 30% federal Residential Clean Energy Credit applies to any California homeowner who owns their system outright (see the tax credit calculator). The state's NEM 3.0 net metering policy, in effect since April 2023, pays less for exported power than its predecessor. Model your full California picture in the savings calculator.
How much does a 6 kW solar system cost in California? A 6 kW residential system in California runs about $24,840 before incentives and about $17,388 after the 30% federal tax credit, a difference of roughly $7,452.
Does California have solar incentives beyond the federal credit? Installer competition and local permitting rules both move the final California price. Check the incentives section above for how that applies to your California system.
Is 6 kW the right system size for your California home? It depends on your bill and roof. Use the system size calculator to size a system around your actual California electricity use rather than a flat 6 kW figure.
run your own California numbers in the cost calculatorestimate California payback in the savings calculatorcheck your California federal credit amountsee installed prices in Arkansascompare California costs to Colorado