In my Conversation article on the Turnbull government’s plan to keep coal-fired electricity alive, I said that most of the opportunities for hydro-electric power had already been exploited. I was thinking of primary power generation, and in this respect, I maintain my view. However, I neglected the option of pumped storage, where water is pumped uphill when excess electricity is available, then run downhill through turbines to (re)generate the electricity when it is most needed.
My old university friend, Andrew Blakers, now with the Research School of Engineering at ANU emailed me to point out this study, looking at the large number of sites potentially available in Australia, more than enough to backup all the renewable energy we will be generating in the foreseeable future.
This isn’t just a theoretical proposition. The Kidston hydro storage project in the advanced stages of planning, will offer 2000MwH of storage combined with a co-located 270MW solar PV project. The same report mentions some big wind + storage projects.
Still, if Labor is silly enough to endorse Turnbull’s NEG idea, it’s hard to see any more progress being made.