Question 1

Does my ADU need solar panels in California?

Accepted Answer

Most detached new ADUs in California require solar under Title 24 energy code. Attached ADUs sometimes require solar depending on size and jurisdiction. Many garage conversions are exempt, but some cities have stricter rules.

Question 2

What is Title 24 and how does it affect my ADU?

Accepted Answer

Title 24 is California's Building Energy Efficiency Standards. For new residential construction including ADUs, it requires solar photovoltaic systems to offset energy usage. The required system size depends on your ADU's square footage and climate zone.

Question 3

How much does solar cost for an ADU?

Accepted Answer

ADU solar packages typically range from a few thousand dollars for small systems to larger investments for premium panels and battery storage. Easy ADU Solar offers fixed-price packages with transparent pricing — no hidden fees.

ADU Solar Installation in San Mateo County, California

San Mateo County Quick Facts