Hornsdale Power Reserve (2017)
Tesla built a 100MW/129MWh battery in South Australia after a political dispute over blackouts. It was the first grid-scale battery to show batteries could provide frequency control faster than gas plants.
The battery cut frequency control costs and responded to grid events in milliseconds, proving the concept.
It sparked a wave of grid-scale battery projects across Australia and the world.
Waratah is 8.5 times Hornsdale's power capacity, scaling up the same shock-absorber concept.
