CA AB1801

Prohibits cities, counties, and city and counties from basing solar energy system permit fees on the valuation of the solar system, property, or associated materials and labor costs.

Requires permit fees for solar energy systems to be based only on the estimated reasonable cost directly associated with issuing the permit.

Mandates separate identification of each individual fee assessed for solar energy system installation on invoices provided to applicants.

Declares that solar energy system permit fee oversight is a statewide concern, making these provisions applicable to all cities including charter cities.