I like potential sites that have multiple renewable energy...

I like potential sites that have multiple renewable energy resources. All of the sites mentioned below have excellent wind, solar and wave resources (perhaps there are others, such as bioenergy).

A variety of resources would make it more likely that pumping could be done 24/7.

"Stand-alone hydropower is not possible in WA and SA because flow is limited. There is limited potential for pump-back hydro on the existing small water supply dams. Pumped ocean storage hydro holds most potential for large-scale dispatchable power. Sites need to be within 2 km of the coast, >100 m in elevation and >100 ha in area, many of which have high conservation values. Nevertheless there a limited number of suitable sites within 100km north of Geraldton and east of Albany in WA, and the Fleurieu and Eyre Peninsulas and Port Augusta in SA."

http://reneweconomy.com.au/pumped-hydro-storage-solution-for-a-renewable-energy-future-91567/