Widespread adoption of hydrogen in Australia as an energy carrier will require storage options to buffer the fluctuations in supply and demand, both for domestic use and for export. Once the scale of storage at a site exceeds tens of tonnes,underground hydrogen storage (UHS) is the preferred option for reasons of both cost and safety.
This report examines the four main geological options for UHS: salt caverns, depleted oil and gas reservoirs, aquifers, and hard rock caverns and concludes that there are more than enough prospective storage areas, particularly in depleted gas fields.
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