Utah Company Seek to Store Renewable Energy with Underground Compressed Air. By Paul Foy, AP, February 13, 2010. "A Utah company plans to dig a series of underground caverns that it hopes to one day fill with compressed air, releasing it to generate electricity by turning a turbine and solving one of the most vexing problems facing the clean-energy industry -- how to store power. Under a barren patch of Utah desert, a private-equity group is bankrolling the project to hollow out a series of energy-storage vaults from a massive salt deposit a mile underground. It promises to make a perfect repository for storing energy and, in effect, creating a giant subterranean battery. Energy storage is catching on as a way to make wind and solar power more useful... 'In terms of storing bulk energy -- lots of megawatt-hours -- compressed air is cheaper than anything else out there,' said Paul Denholm, lead analyst for energy storage at the U.S. Department of Energy's National Renewable Energy Lab [nrel.gov] in Boulder, Colo."
2010-02-15
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