Good to know
Does a new home in California need solar panels?
Which newly built homes need a solar power system, where it can go and the exceptions are set out in section 150.1(c)14 of the 2025 California Energy Code, which the Energy Commission explains on its solar page. The 2025 Energy Code applies to buildings whose permit applications are submitted on or after January 1, 2026.
The detail
Where the rule is set out
Which newly built homes need a solar power system, where it can go and the exceptions are set out in section 150.1(c)14 of the 2025 California Energy Code, which the Energy Commission explains on its solar page.
The 2025 Energy Code applies to buildings whose permit applications are submitted on or after January 1, 2026.
Sources: California Energy Commission: 2025 Single-Family Solar PV; California Energy Commission: 2025 Building Energy Efficiency Standards
Last checked against the sources:
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