Mr SHORTEN (Maribyrnong—Leader of the Opposition) (14:00): My question is to the Prime Minister. When can the Prime Minister guarantee Australians that the cost of their power bills will go down? Government members interjecting— The SPEAKER: The Prime Minister will resume his seat. Mr Tim Wilson interjecting— Mr Frydenberg interjecting — The SPEAKER: The member for Goldstein is warned. The Minister for the Environment and Energy will cease interjecting and denying the Prime Minister the call. The Prime Minister has the call.