In our research we have found that, for Australia, the best technology may be pumping seawater up to coastal cliff tops.
Pumped hydro is by far the most significant form of large-scale energy storage used globally. It makes up 99% of all large-scale energy storage.
Unlike conventional river or stream-fed hydroelectricity generation, it does not require a continuous supply of water. This makes pumped hydro less sensitive to drought cycles (although allowances must be made for losing water to evaporation).
