The recent announcement by Elon Musk of a scalable battery pack to store electricity at the household or commercial generator scale at half the price of likely competitors has accelerated the demise of the old baseload coal or nuclear power stations.
Already, a NZ energy supplier has announced it will provide the Tesla Powerwall to its customers. Expect to see similar deals from Australian utilities soon.
See this article from The Conversation or reneweconomy.com.au for more details