Electrical Permit

An electrical permit is a specific permit required for the electrical work involved in a solar installation, including wiring from the panels to the inverter, the inverter connection to the electrical panel, grounding, and any panel upgrades. In some jurisdictions, the electrical permit is separate from the building/structural permit.

The electrical permit ensures that all wiring and electrical connections comply with the National Electrical Code (NEC) and local electrical codes. The permit application includes a single-line electrical diagram showing the complete electrical path from the solar array through the inverter to the main service panel and utility meter. It specifies wire types and sizes, conduit, overcurrent protection, disconnects, grounding, and rapid shutdown equipment. An electrical inspector reviews the completed work during the inspection, checking for proper connections, code-compliant materials, correct labeling, and safe installation practices. Some jurisdictions require the electrical work to be performed by or supervised by a licensed electrician (separate from the solar installer’s contractor license). Electrical permit fees are typically $50–$300. Your solar installer handles the electrical permit process as part of the overall project management.