1. How Compressing Air in Underground Salt Caverns Could Help the Planet's Shift to Renewable Energy

    cnbc.com Smart Grid , Compressed Air/Gas
    How Compressing Air in Underground Salt Caverns Could Help the Planet's Shift to Renewable Energy

    You may not have heard of it, but compressed air energy storage (CAES) has been around for decades. A CAES plant was built in Huntorf, Germany, in 1978, while another facility was developed in McIntosh, Alabama, in 1991. Both these developments use underground salt caverns to store air.

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    1. We can store megawatts and gigawatts.
    2. You can't store the air underground at much above ambient temperature.
    3. Since it is a very site-specific technology then this is a problem – finding the right geological structures in the ground.

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