Joint venture gas storage facilities

As part of joint venture projects RAG develops and operates under its sole technical responsibility two underground gas storage facilities for its partners. After their completion the underground gas storage facilities Haidach and 7Fields will provide a considerable contribution to security of supply, as they will hold a total working volume of around 5 billion cubic metres of natural gas.

Haidach gas storage facility

The Haidach storage facility was planned and built by RAG under its concession. Since its construction, RAG has operated the facility for partners Gazprom export (Russia) and Wingas (Germany). GSA and astora market the capacity. The first development phase was completed in 2007, and the second in 2011. The total storage capacity of 2.9 bn cu m of natural gas is equivalent to a quarter of annual gas consumption in Austria. Haidach is the second-largest storage facility in Central Europe. It has an injection capacity of 1.05 mn cu m/hour (11.9 GW) and withdrawal capacity of 1.16 mn cu m/hour (13.1 GW).

7Fields gas storage facility

7Fields was planned and built by RAG under its concession. RAG operates the facility for German partner Uniper Energy Storage (formerly E.ON Gas Storage). RAG Energy Storage and Uniper market the capacity of this interconnected storage network. The first expansion phase began in 2009 and was completed in 2011. Following completion of the second expansion stage in 2014 and a capacity adjustment in 2019, around 2.1 bn cu m of natural gas can now be stored at 7Fields. It has an injection capacity of 698,300 cu m/hour (7.8 GW) and a withdrawal capacity of 1,033,900 cu m/hour (11.7 GW). 7Fields is made up of former gas fields in Upper Austria and Salzburg. Integration of several storage reservoirs into an interconnected storage facility is particularly resource efficient and environmentally friendly. The site is unique in Europe, with five storage stations connected via pipelines to three metering stations and to the Austrian and international gas grids.

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Contact Haidach

Thomas Pleßnitzer
T +43 (0)50 724
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Tatjana Weilert
T +43 (0)50 724
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Contact 7Fields

Thomas Pleßnitzer
T +43 (0)50 724
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Günter Ziegler
T +43 50 724
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