Australia, July 1 -- Technology group Wartsila announces that the 150-megawatt (MW) / 300-megawatt-hour (MWh) battery energy storage system provided to owner and operator Revera Energy (Revera) in Bungama, South Australia, has now begun commercial operations. It is Wartsila's fourth energy storage project in Australia to become operational.The Bungama project strengthens South Australia's ability to manage record levels of renewable energy while supporting grid reliability across the National Electricity Market (NEM). It also marks a significant step in a multi-stage development programme and is built to respond to fast changes in grid variability, including solar and wind output, with precision. South Australia regularly operates with some...