https://re100.eng.anu.edu.au/global/ https://re100.eng.anu.edu.au/global/ >We found about 616,000 potentially feasible PHES sites with storage potential of abo

https://re100.eng.anu.edu.au/global/ https://re100.eng.anu.edu.au/global/ >We found about 616,000 potentially feasible PHES sites with storage potential of about 23 million Gigawatt-hours (GWh) by using geographic information system (GIS) analysis. This is about one hundred times greater than required to support a 100% global renewable electricity system.