Due to safety regulations, a grid-tied PV system will automatically shut down during power outages. The inverter needs to disconnect from the network grid within 2 seconds of a power failure (Auto Disconnect Timing Test). Further, the inverter must not connect within 60 seconds of the grid re-establishing power supply after a power failure (Reconnection Timing Test). If continued power is essential, you can invest in a battery backup system or generator. Grid-tied systems with battery backup are available, although they will increase the installation costs, maintenance and decrease performance efficiency.