Salt caverns are solution mined via wells in salt formations (bedded salts or salt domes) of sufficient thicknesses at depths of up to 2.000 m. Cavern dimensions can be more than 300 m height and 60 – 100 m diameter; volumes are generally in a range of between 500.000 – 800.000 m³. During 2004, KBB completed the first natural gas storage cavern in Europe having a usable volume of 1.1 million m³ .The specific properties of salt make it an ideal host rock for the location of stable tight caverns, suitable for storing gaseous and liquid hydrocarbons, as well as compressed air.During 2004, KBB completed the biggest natural gas storage cavern in Europe having a usable volume of 1,1 million m³ .
