Broken Hill mine flipped into renewable energy storage

The Australian Renewable Energy Agency (Arena) has unveiled the re-purposing of the defunct mine in Broken Hill, in New South Wales, for renewable energy storage, using compressed air. Arena has conditionally approved A$45-million in funding to construct a 200 MW / 1600 MWh fuel-free energy storage facility, developed by Canadian energy storage developer Hydrostor Inc, using its Advanced Compressed Air Energy Storage (A-CAES) technology.