A solar inspection is an official examination by a licensed electrical or building inspector to verify that a solar installation complies with electrical codes, building codes, and safety standards. This inspection occurs after installation is complete but before the system operates. Inspectors verify proper grounding, correct wire sizing, secure mounting, and accurate equipment installation according to permit specifications.
Inspection Checklist
Inspectors review inverter placement, disconnect switch accessibility, conduit installation, breaker ratings, and bonding requirements. They verify roof penetrations are sealed, mounting systems are structurally sound, and electrical connections meet NEC 2023 standards. Typical inspection duration ranges from 30 to 90 minutes depending on system size and complexity.
Pass Requirements
Systems must pass inspection before utility interconnection can occur. Common failure reasons include improper grounding, undersized conduit, missing disconnect switches, or inadequate clearances. Failed inspections require corrective work and resubmission, potentially adding 1 to 3 weeks to project timelines. Passing inspection is mandatory for system operation and warranty validity.