Senator GROGAN (South Australia—Deputy Government Whip in the Senate) (14:51): My question is also to the Minister representing the Minister for Climate Change and Energy, Senator Ayres—it's Ayres day! Delivering cheaper and cleaner electricity is central to the Albanese Labor government's economic agenda. Can the minister confirm that the Australian Energy Regulator cited unreliable coal power plants as a key driver of higher electricity prices? Opposition senators interjecting— Senator GROGAN: That's unreliable coal power plants as a key driver of higher electricity prices. Can he also outline why unreliable coal power drives up electricity costs? The PRESIDENT: Senator Grogan, please resume your seat. Senator Grogan is entitled to ask her question in silence. Senator GROGAN: In addition to that first section—I might just quickly run past it again. Can the minister confirm that the Australian Energy Regulator cited unreliable coal power plants as a key driver of higher electricity prices? Why is unreliable coal power driving electricity costs, and why is it a feature of the Australian grid? What is the government doing about it?