Projects

Benefit from our experience in underground storage design, planning, operations and services.

POWER-TO-GAS

Power-to-Gas is a facilitator for a sustained renewables-based energy economy.
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UNDERGROUND
SUN STORAGE

Solar-generated hydrogen was successfully stored in a depleted Austrian gas field.

This flagship project proved that generating hydrogen from renewable energy and storing underground enables a secure, sustainable and climate-friendly energy supply chain.

Underground Sun Storage
THE PROJECT IN PICTURES
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UNDERGROUND SUN CONVERSION

In this project, renewable natural gas is generated in a natural gas field through a microbiological process (methanation) from hydrogen and carbon dioxide.

A hydrogen (generated from renewable energy) – carbon dioxide – natural gas mixture is injected into the reservoir, and, after the methanation phase, the synthetic gas is produced, rendering the process carbon neutral.

Underground Sun Conversion

THE PROJECT IN PICTURES

UNDERGROUND GAS STORAGE

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HAIDACH

Haidach is the second-largest gas storage facility in Central Europe. The first development phase came onstream in 2007, and the second in April 2011. The total storage capacity of 2,9 billion m³ of natural gas is equivalent to a quarter of the annual gas consumption in Austria.

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Puchkirchen

The Puchkirchen gas storage facility comprises two fields: Puchkirchen and Haag. UGS operations started in the year 1995 and have since been further developed to increase total storage capacity to currently more than 1 billion m³.

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7 FIELDS II

This UGS facility comprises two depleted gas fields (Pfaffstaett & Oberkling) located in the Upper Austrian Molasse Basin. The reservoirs are deepwater deposits of Chattian age. Reservoir rock is primarily conglomerate with sandy matrix.

UGS development started in 2009. Working gas volume is about 0,7 billion m³.

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7 FIELDS

This UGS facility comprises two depleted gas fields (Nussdorf & Zagling) located in the Upper Austrian Molasse Basin. Sand and conglomerate layers form the reservoirs.

UGS development started in 2011. Working gas volume is about 1,2 billion m³.

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BIERWANG

The Bierwang UGS facility is located in the south-eastern German Molasse Basin with Chattian strata representing the main reservoir.

UGS development started in 1975 and has since contributed to Central Europe’s sustainable and uninterrupted energy supply. Working gas volume is 1 billion m³.

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REHDEN

The Rehden UGS facility, located in Northern Germany, plays a vital role in maintaining security of natural gas supply in Germany and Europe.

The Zechstein formation comprises the main reservoir with 3,9 billion m³ working gas volume.

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KUZEY-MARMARA

The Kuzey-Marmara field is located in the Marmara Sea and became Turkey’s first underground gas storage facility, located in an environmentally sensitive region in the Silivri disctrict of Istanbul.

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Kuzey-Marmara Extension Project

The aim of this extension project is to increase considerably the storage capacity of the Kuzey Marmara storage facility.

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YELA UGS DEVELOPMENT

The Yela underground storage facility is located in the province of Guadalajara, Spain. It is a saline aquifer storage made of Upper Cretaceous fractured dolomites.

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