Shut down solar systems for cyclone safety

Energex Area Manager Chris Graham said cyclones can potentially impact solar PV systems and it is crucial that customers take steps to ensure their own safety and consider the safety of emergency crews.

“When you know a storm or flood is coming, it’s a good idea to shut down your solar power system,” Mr Graham said.

“You should always follow your installer’s shutdown procedures. These can usually be found at the inverter and/or on the main switchboard.

“Most shut down procedures will ask you to turn off the inverter AC mains isolator which is usually found in the meter box. It is very important to turn the AC mains isolator off first and then also to turn off the photovoltaic (PV) array DC isolator which is usually found next to the inverter.

“Under no circumstances should a homeowner climb onto the roof to touch the solar system or its components.

“If you are unsure of the shutdown procedure, contact the manufacturer or installer.

“Even though grid-connected solar PV systems cannot supply the home when the network is not operational, they can continue to generate direct current (DC) power.”

Mr Graham said safety should always be the number one priority.

“It is critical to remember that solar panels and their cables should always be treated as if they are live.”

“Customers should not attempt to reconnect solar PV systems after severe storms or roof damage, as their roof may be electrified.”

“Do not access the roof without having the system checked first.”

More safety information is available on our website: Solar power & battery storage safety.