In a PV system, it's usually necessary to have a switch that can isolate the PV panels from the system βor the inverter from the grid and loads. This is mainly done using a solar isolator switch. This switch allows you easily (and safely) turn off your solar circuits whenever.
A photovoltaic system with storage consists of solar panels, an inverter (which converts energy from direct current to alternating current), a management system, and, indeed, batteries.