Solar and pumped hydro, page-5

One thing that Australia does not lack, is holes, big holes, great bloody big holes.  What do we do with them?  Not much.  Why not put them to some good use, like for producing clean energy?

I find something quite appealing in putting the legacy of the fossil fuel industry, towards projects that help to undo the damage they have caused.

"So it makes sense that today’s Australian PHES developers look around for where there might be at least one existing body of water or hole in the ground. Some of our previous research describes how even the ocean can be used as the lower pond. Other options include existing water storage reservoirs and disused mines"

http://reneweconomy.com.au/2015/let...-pits-into-hydro-storage-for-renewables-91630