I'd be happy to help, but the article content provided is incomplete. The text cuts off after the opening paragraph about Caitlin Cassidy and the Queen Victoria Building in Sydney, without providing the actual reporting or data about living without fossil fuels.
To write an accurate summary following your guidelines, I need the full article content. Could you provide the complete text? Once you do, I'll deliver a 150-250 word summary in active voice with specific details, no hedging language, and short sentences.