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The Cool Down on MSN29d
Massive abandoned salt mine is now state-of-the-art facility making huge impact: 'A significant role'It is able to store 1,500 megawatt-hours of energy by compressing air into a massive abandoned underground salt mine in ...
But extracting the coveted salt means descending into dark caves, then blasting and carrying heavy rock. Faizan Panjwani: The problem is the massive size of the blocks that come from the mine.
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