5 Biggest Energy Companies in Australia for 2024

3. Origin Energy Limited

Market Cap: $10.22 billion

Origin Energy Limited, headquartered in Australia, operates as an energy company engaged in various activities, including the exploration and production of natural gas, electricity generation, wholesale and retail sale of electricity and gas, and the sale of liquefied natural gas.

In February 2024, Australian utility Origin Energy expanded its portfolio through the acquisition of compatriot renewables developer Walcha Energy. This acquisition brought with it a significant 1.3GW project pipeline consisting of solar and wind assets. Among these assets are the 450MW Salisbury solar project and the 868MW Ruby Hills wind farm, both located in the state of New South Wales (NSW).