For more information, please visit: astora.de Kassel, December 2012. The astora GmbH & co. KG based in Kassel is one of the largest natural gas storage operators in Europe and relies on security of supply and flexibility for their customers. Rehden natural gas storage a natural gas storage at the junction connecting agrees. The natural gas storage Rehden in Lower Saxony, Germany is the largest natural gas reservoir in Western Europe. Here, nature has created underground a vast reservoir, was included in the natural gas for millions of years. The development and promotion began in the 1950s. After the end of the gas production, the storage facility was rebuilt to a gas storage and taken in 1993 in operation.

The particularly advantageous properties of rock layers make for an excellent horizontal and vertical sealing of the storage site and are so essential for today’s use of the former gas field as a memory. In the reservoirs operated by Astor, up to 4.4 billion cubic metres working gas on one can Stored area of eight square kilometers at a depth of around 2,000 metres. It speaks of an amount which is sufficient to supply approximately two million single-family homes for one year with natural gas. While many other natural gas storage facility with a variety of vertical holes must be opened up, the horizon ALB ear technique could be used thanks to the special geological characteristics of Rehden. Thus, only 16 holes were necessary for the development of the entire deposit. The cushion gas, so the remaining constantly in the memory portion of natural gas, produces the minimum pressure required for store operation with a volume of 2.6 billion cubic meters. Depending on the level of working gas volume, a pressure is reached in the memory up to 280 bar. The site Rehden is suitable not only due to the geological conditions excellent for storage of natural gas.