Fronhofen natural gas storage facility

The H-gas storage facility Fronhofen is located in southern Germany in Upper Swabia.

It was established in 1997 in the trigonodus dolomite of the former Fronhofen-Illmensee natural gas reservoir.

As a pore storage facility with a working gas volume of approx. 10 million n, it contributes to balancing the demand gap between summer and winter months and to securing the gas supply of Stuttgart, the state capital of Baden-Württemberg.


  • Location: Baden-Württemberg
  • Storage type: pore storage
  • Gas quality: H-gas
  • Geologicalformation: Trigonodus-Dolomite / Ob. shell limestone
  • Depth: 1,300 m below ground level
  • Working gas volume: approx. 10 million n
  • Max. injection capacity: 20,000 n/h
  • Max. withdrawal capacity: 30,000 n/h
  • Number of storage wells: 6
  • Year of construction / commissioning: 1997
  • Market area / Network operator: Trading Hub Europe (THE) / terranets BW

Safety information according to accident law

Safety flyers and data for on-site inspections in accordance with §16 StörfallV can be found in our media libarary (german)


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