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A Colorado company with backers in Britain has leased more than 5,000 acres in northwestern North Dakota to mine salt and store compressed air.
Denver-based Dakota Salts LLC says it wants to use caverns created by mining in Burke County to store compressed air to be sold to wind farms to generate electricity during periods of low wind. The caverns also could store carbon dioxide from North Dakota’s coal-burning power plants or natural gas from the state’s oil fields, the company said.
