Where are DC disconnects typically found in a PV system?

DC disconnects are typically found in or near the inverter of a photovoltaic (PV) system because this location allows for easy access to safely disconnect the DC source (which comes from the solar panels) before it reaches the inverter. This is important for maintenance, troubleshooting, and emergency situations, as it allows technicians to isolate the system from its power source effectively.

Having the disconnect near the inverter also facilitates compliance with electrical codes and safety standards, which often specify the need for a disconnecting means to be readily accessible. This ensures that anyone working on the system can quickly and safely disconnect the power to prevent potential electrical hazards.

In contrast, while DC disconnects could theoretically be placed next to solar panels, doing so can complicate access and safety management since the panels might be elevated or located in less accessible areas. In the battery storage area, a DC disconnect may be present, but the primary location for rapid access remains near the inverter for safety and convenience. Lastly, attaching a disconnect to the ground system is not practical as it does not serve the necessary purpose of safely isolating the DC circuit from the inverter.