Pumped hydro energy storage to support 100% renewable electricity
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Blakers, Andrew
Lu, Bin
Stocks, Matt
Anderson, Kirsten
Nadolny, Anna
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IEEE
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Pumped hydro constitutes about 97% of all energy storage. We found 22,000 off-river pumped hydro sites in Australia with energy storage potential of 67 Terawatt hours, which is about 150 times more than required to support a 100% renewable electricity grid. We modelled a 100% renewable electricity system for Australia and found that the cost of balancing (over and above the cost of PV and wind generation) is only about US20/MWh, comprising pumped hydro storage, additional interstate transmission and spillage of PV and wind. Initial site searching of other countries is underway. The USA probably has 100-1000 times more sites than needed to support a 100% renewable electricity grid.
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2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
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Restricted until
2099-12-31