On reading Labor, Prosperity and the Nineties, we shouldn't be surprised that Costa is spoiling for a fight with his union colleagues over energy deregulation. He has no truck with environmental concerns and doesn't seem to believe there is much of a case for union restraints on managerial power at all. Costa is a deregulator, a decentraliser, and a self-styled reformer. He is also a visceral climate change skeptic who once called Tim Flannery an "idiot."
Don't expect Costa to back down over energy deregulation. From the evidence on the public record, this is the fight of his career."