Green energy projects eye underground salt caverns as key to hydrogen storage

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Green energy projects eye underground salt caverns as key to hydrogen storage
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While there is much work to do to grow hydrogen production in Canada, the East Coast has been identified as a potential hub for the burgeoning sector

Triple Point Resources Ltd. CEO Julie Lemieux wants people to understand the sheer size of the Fischell Salt Dome, a geological formation on Newfoundland ’s west coast she says could play a key role in the green energy transition.

The concept isn’t new – the petroleum industry has long used underground cavities for the safe storage of hydrocarbons. In Alberta, for example, more than 100 salt caverns have been in use as natural gas storage reservoirs for the past 50 years. Hydrogen can be used as a transport fuel, in industrial settings and for electrification. Though most of the hydrogen in use today is produced with natural gas, it can also be produced using clean energy sources such as wind and solar.

“This geological structure has been looked at since the ‘60s … people knew there was a salt structure there,” said Lemieux, adding tests have revealed the Fischell Salt Dome could have the potential to store more than 35 million cubic metres of hydrogen, or the equivalent of 180,000 tonnes.

“The other one is safety. If you want to store large amounts of hydrogen in surface facilities, there will always be a risk of explosion, while for caverns, they are more than two kilometres under the Earth’s surface, so they are much safer.”

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Energy Hydrogen Storage Salt Lemieux Column World Canada Time University Of Alberta Empire State Building Newfoundland

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