Strengthening the South Australian electricity grid
The fast ramping capability of the Tesla Powerpacks used at the Hornsdale Power Reserve means that the facility can dispatch large amounts of power quickly and reliably. This means it can support the South Australian electricity grid and make major cost savings by providing frequency control and short-term network security services.
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.