Strengthening the South Australian electricity grid
In 2019, HPR reduced costs in the National Electricity Market by $116M through the provision of Contingency and Regulation Frequency Control Ancillary Services (FCAS).
Frequency Control Ancillary Services (FCAS)
Dispatching large amounts of renewable power
At 100MW/129MWh (soon to be expanded by a further 50MW/64.5MWh), the Hornsdale Power Reserve is the largest lithium-ion battery in the world. When dispatching at peak output, the battery provides enough electricity to power the equivalent of 45,000 homes.
Project expansion benefits
This Australian-first battery technology will trial responding to supply fluctuations by automatically and rapidly charging and discharging. By imitating the behaviour of the existing fossil fuel-based services, the Hornsdale Power Reserve can arrest any grid frequency deviations through a clean and regenerative substitute.
The Australian Energy Market Operator has identified that the South Australian grid requires 6,000 megawatt-seconds (MWs) to maintain a secure operating level of inertia. It is anticipated that Hornsdale Power Reserve as expanded could provide up to 3,000MWs of inertia.