South Australia - 20 years ago relied totally on fossil fuel generated energy. Now in 2021 it has 60% renewables. "South Australia shows how good public policy can enable dramatic
emissions reduction, even in a privately owned electricity system". It is a model that the rest of Australia and the world can learn from. "As the transition progressed, the state’s largest coal generator, at
Port Augusta, was wound back and eventually closed. To help workers and
the town adjust, the state government supported employment alternatives".