What is the grounding requirement for photovoltaic (PV) systems?

Photovoltaic (PV) systems are required to comply with grounding requirements set forth by the National Electrical Code (NEC). Proper grounding is crucial for safety, ensuring the protection of personnel and equipment from electrical faults, such as lightning strikes or short circuits. Grounding provides a pathway for fault current, which helps in the effective operation of protective devices, thereby minimizing the risk of electric shock and equipment damage.

The NEC outlines specific grounding methods for various components of PV systems, including the array, inverter, and the grounding of system components. These regulations are designed to ensure that PV systems are safely integrated into the electrical infrastructure and comply with established safety standards.

This requirement reflects an understanding that all electrical installations, including renewable energy sources like PV systems, must prioritize safety. Thus, it is essential for anyone involved in installing or inspecting PV systems to follow the NEC grounding requirements closely, reinforcing the importance of maintaining safe electrical practices.