OX2 is planning the Muswellbrook Solar Farm & Battery, featuring a 135MW solar farm and a 135MW Battery Energy Storage System (BESS) across 482 hectares. The project is located approximately 2.5km east of Muswellbrook, with the majority on the site being land owned by Muswellbrook Coal Company (MCC), a wholly owned subsidiary of Idemitsu Australia Pty Ltd.

The project was developed in partnership with Idemitsu.

The project is located within the Hunter Central Coast Renewable Energy Zone (REZ). It will connect to NSW’s electricity network via a tee connection into the 95 existing 132 kV overhead line to the west of the site. This will require construction of approximately 2.4 km of 132 kV overhead line and a 132 kV switching yard.

Operations are expected to begin by 2028.