Building Permit

A building permit is an official authorization from your local government (the Authority Having Jurisdiction) that grants approval to install a solar energy system on your property. Obtaining a permit is legally required before any solar installation work can begin.

The permit application typically includes detailed plans showing the system layout, structural attachments, electrical wiring diagrams, equipment specifications, and fire code compliance. Your solar installer prepares and submits these documents on your behalf. Permit fees vary by jurisdiction — typically $100–$500 for residential solar, though some cities have reduced or waived fees to encourage solar adoption. Processing times range from same-day (for jurisdictions using automated platforms like SolarAPP+) to 2–6 weeks for manual review. Some jurisdictions require separate building and electrical permits, while others combine them into a single solar permit. Working without a permit is illegal and can result in fines, required system removal, voided insurance coverage, and problems when selling your home. The permit also triggers the inspection process that ultimately leads to Permission to Operate approval.