Mr TURNBULL (Wentworth—Prime Minister) (14:59): Independent assessment of the Energy Security Board and the almost unanimous views of industry groups and business leaders around the country all support the National Energy Guarantee as a means of ensuring that we will have more affordable energy. The honourable member knows very well what happens when you allow ideology and idiocy to take charge of energy policy. Opposition members interjecting— Mr TURNBULL: He knows very well what happens there in South Australia, where you have the most expensive and the least reliable electricity in Australia. The time has come for engineering and economics; the National Energy Guarantee delivers that. The Energy Security Board, comprising five of the most expert, numerate members of the community associated with energy policy, has delivered this policy—delivered this plan. It's a good one. It has more support across the community than any energy policy I have seen in decades. That's why it deserves the support of the opposition and all honourable members.