Permit requirements vary widely by locality and by whether the system is permanent or portable. Small, nonpermanent setups often need no permit, while fixed installations that tie into home wiring or alter structures usually do.
Typical permit and approval steps:
Before installing a fixed canopy, pergola-mounted panels, or battery cabinets, check with your local building department. For renters or temporary installations, document permissions in writing to avoid lease conflicts. When in doubt, a licensed installer or electrician can advise on required permits and pull them as part of the job.