The proposed Connewarren BESS will have a capacity of 1,000MW/4,000MWh and will connect into the existing Mortlake Terminal Station. The proposed site is located 11 km west of Mortlake, within the South West Victorian Renewable Energy Zone and adjacent to the Mortlake Terminal Station.

The proposed site is accessed from Connewarren Lane and is adjacent to the Moorabool to Heywood 500 kv transmission line and another 200 kv transmission line that runs to the Mortlake Terminal Station