Mr TURNBULL (Wentworth—Prime Minister) (14:14): Mr Speaker, I'm not quite sure what the honourable member believes qualifies him to have some sort of infallible crystal ball, but, over the years, I've found that predictions about technology are often mistaken. So you're better off recognising— Mr Butler interjecting— The SPEAKER: The member for Port Adelaide has asked his question. Mr TURNBULL: The reality is that coal-fired power is a big part of our energy mix at the moment. It will be a big part for a very long time, and may very well be forever. We'll find out in many years to come. The reality is, in the here and now, we need to have cheaper and more reliable power. And the honourable member knows better than most that in his state that combination of left-wing Labor ideology led by the now dismissed Labor government, dismissed by the people of South Australia, and utter incompetence resulted in his state having the most expensive and the least reliable electricity in Australia. We are delivering more reliable and more affordable power because we are working on it with the benefit of engineering and economics. I know they are strangers to the honourable member, but, believe me, they are the guides to a more affordable and reliable energy future for all Australians.