Origin Energy has commenced commercial operations at its first large-scale battery at Eraring in New South Wales.
The 460 MW/1770 MWh Eraring battery allows Origin to store electricity produced in the daytime from sources such as solar to release into the grid when it’s needed most. It has a dispatch duration of around four hours.
The project was delivered on time and under budget, despite a number of challenges such as wet weather, according to a LinkedIn post from Greg Jarvis, the head of energy operations at Origin Energy.
Origin’s Eraring large-scale battery energy storage system is comprised of four stages.
Stage one was completed at the end of 2025. Two other stages were announced in 2024.
Last year, Origin decided to add an extra 360Mwh to the stage two 240MW grid to increase its dispatch duration from 4.3 hours to 5.8 hours.
Stage four is set to start operations in the first quarter of 2027.
All four stages combined will equate to 700 MW and 3,170 MWh, providing 4.5 hours of storage on average.
Once complete, the Eraring battery is set to be the largest approved battery storage facility in Australia.