All solar + battery installations are subject to solar curtailment measures.
Western Australia
All solar + battery installations and upgrades with an inverter capacity of 5 kW or less will need to be capable of being remotely turned down or switched off in emergency situations by the network operator in WA.
These requirements were introduced on 14 February 2022 for systems installed after 14 March 2022. These measures allow network operators to take control of (turn off) private and business inverters, in order to stabilise the grid if the demand for electricity becomes too low.
Victoria
Victoria has recently introduced an emergency backstop mechanism for solar + battery installations and upgrades from 1 October 2024.
These rules apply across the industry, and are measures put in place to be used in emergencies only, to prevent widespread blackouts and to allow the continued uptake of solar in Australia.