Earthing is a way of making sure that electricity doesn't flow off your equipment randomly and becomes a safety hazard. It introduces a shortcut to any potential leakage of electricity, which is ground, to provide a safe path to discharge. If earthing (also known as grounding) is ignored during the system installation,. Before we go into the topic of grounding, let's define the term “grounding.” In electrical and PV systems, there are two forms of grounding: equipment grounding and system grounding. Photovoltaic power systems provide clean, renewable energy to homes and businesses. To ensure safety for the public during extended periods of time, PV systems must be designed.