The chassis must be grounded through the equipment grounding conductor. The key rule involves the neutral-to-ground bond: Only one bond point avoids parallel paths and GFCI issues.
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The recommended approach is to use a separate DC grounding electrode for PV arrays and frames, as this enhances protection against lightning and transient voltage. For lightning protection associated with grounding systems, refer to NFPA 780 and NEC 250.
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Grounding your solar inverter is crucial for a secure solar system and can prevent shocks, allow ground fault protection, and arc fault protection.
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Solar inverters can be grounded by using a grounding rod made of copper. It is better to have an electric panel connected to a single ground point.
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