Technically yes if you're the homeowner-builder — but California requires a licensed C-46 contractor or homeowner-permit pull, plus utility-approved equipment and inspection. Most homeowners use a licensed installer.
Homeowners can pull an owner-builder permit and self-install ADU solar, but the system must use UL-listed equipment, pass building/electrical inspection, and be approved by the utility.
Below: full details, common edge cases, and how to get instant pricing for your specific California ADU project.
For most California ADU owners, can i diy adu solar in california? comes up at one of three points: planning, permitting, or post-installation. Each phase has its own answer below.
If you'd rather skip the reading and see a real number for your project, our calculator delivers instant pricing without a sales call.
Easy ADU Solar is a referral platform — we negotiate with multiple licensed C-46 California installers to get you fixed pricing. We surface this question because it's one of the top-asked items by California ADU owners researching solar.
Homeowners can pull an owner-builder permit and self-install ADU solar, but the system must use UL-listed equipment, pass building/electrical inspection, and be approved by the utility.
Under 30 seconds via our calculator — no phone or email required.
Garage conversions and JADUs are usually exempt from Title 24 solar but follow the same answer for voluntary installs.