Renewable energy must have backup as it is only profitable when the wind blows, John Carter

By John Carter
Updated July 4 2022 - 1:00pm, first published June 30 2022 - 9:00pm
John Carter says Germany has spent more than $743 billion creating wind and solar power sites since the year 2000. Photo by Shutterstock/Rudmer Zwerver.

Ross Garnaut has written of Australia becoming the world's energy source.

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