Solar req on new detach ADU in LA if on primary home already?

[Paul Dario Jr]

Hey all. I'm planning to build a detached ADU on my primary residence lot as a way to begin my REI goals.

I know that California, under Title 24, now requires any newly built, detached ADU's to include solar panels. What I'm unclear about is whether or not the ADU would be exempt from that requirement if the primary house on the same lot already has solar panels installed on it. Does anyone know if that exempts the solar on the detached ADU I'm building? I read a couple articles that seemed like it was suggesting solar might be exempt from the detached ADU in that case.

Thanks for the feedback!