The Eraring BESS will support further renewable project development by charging during the day when renewable energy sources like solar generation is plentiful and discharging into the grid during peak periods.

Locating a battery at Eraring also takes advantage of the existing transmission infrastructure, minimising the need for construction of long transmission lines.

All three stages of the Eraring BESS are now under construction. Stage one and three have a capacity of 460MW with a dispatch duration of four hours and are scheduled to come online in the final quarter of 2025. The second stage of the battery is scheduled to come online in the first quarter of 2027, adding a further 240MW with a dispatch duration of four hours.

The combined energy storage of all stages of the battery will be 2.8 GWh, enabling Origin to help keep the grid stable and support more variable renewable energy coming into the system.