Electrical Inspection
A review by a licensed inspector to verify that electrical work meets National Electrical Code (NEC) requirements. Required before utility interconnection of solar systems and after panel upgrades.
Why It Matters
Failed inspections delay your solar system activation. Understanding common inspection points (grounding, labeling, rapid shutdown) helps set expectations.
Related Terms
NEC (National Electrical Code)
The U.S. standard for electrical installation safety (NFPA 70). Article 690 specifically covers solar PV systems, including wiring, grounding, labeling, and rapid shutdown requirements.
AHJ (Authority Having Jurisdiction)
The local government entity (city, county, or township) responsible for permitting, inspecting, and approving solar installations and other electrical/building work.
PTO (Permission to Operate)
Formal approval from the utility allowing a grid-connected solar system to be energized and begin exporting electricity. PTO is the final step after installation and inspection.