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Hydrostor, based in Toronto, has a plan to construct two massive long-term energy storage facilities, one near Sydney, Australia, near the site of a former mine, and another in Kern County, California, near Edwards Air Force Base. The one in Australia will be able to discharge 200 MW of electricity for up to eight hours and is expected to come online in 2027. The installation in California will be able to supply 500 MW of power for eight hours and will be completed before 2030. 4000 MWh of storage is a big number, the kind that makes people sit up and take notice, but the process is simplicity itself according to Curtis VanWalleghem, CEO and co-founder of Hydrostor.
“It’s a very simple system that just uses a hole in rock [plus] air and water,” he tells Inside Climate News. “And…
Read the full article originally published at cleantechnica.com.