That’s a route researchers at Sandia National Laboratories, a Department of Energy laboratory, are helping explore in an inactive limestone mine in northeastern Ohio.A Sandia team led by researcher Steve Bauer has been working with Houstonbased Haddington Ventures and its subsidiary Norton Energy Storage LLC to determine the feasibility of using a 2,200footdeep inactive mine near Norton, Ohio, as the storage vessel for a compressed air energy storage power plant.

Website: http://www.sciencedaily.com/releases/2001/04/010427065723.htm