Gas Storage CZ is the largest operator of underground gas storage facilities in the Czech Republic with total working gas volume over 2.7 bil. m3, which represents approx. 2 months gas consumption of the Czech Republic during winter season. The company is permanently improving qualitative and quantitative parameters of its facilities and is assessing its hydrogen readiness.
Gas Storage CZ is operating 6 underground gas storage facilities, out of which 5 are located in Moravia (Tvrdonice, Dolní Dunajovice, Lobodice, Štramberk a Třanovice) and one in central Bohemia (rock cavern at Háje near Příbram). Underground gas storage facilities have been built for ensuring reliable gas supply in the Czech Republic. Underground gas storage facility Lobodice was, before its transformation to natural gas in early 90ties, originally intended to store surpluses of city gas from Ostrava region, containing considerable hydrogen content.
Gas Storage CZ and hydrogen technology
The company is currently assessing suitability of its facilities for storage of blended natural gas with hydrogen and H2 readiness of the surface technologies (pipelines systems, compressors, gas treatment technology) and underground wells from material and process point of view. At underground part of the storage (“reservoir”) the company is assessing H2 readiness in terms of geochemical interactions and overall reservoir tightness. The company also examines options to produce green hydrogen from renewable resources and its usage for testing its technologies and also utilization in hydrogen supply chain.
Further projects
Gas Storage CZ successfully in laboratory and also on one of the wells tested the biological methanation, the process where naturally occurring methanogenous microorganisms transform hydrogen and carbon dioxide to methane in the reservoir.
