The institute’s Geobiotechnology and Chemodynamics group (Andreas P. Loibner) adds biotechnological expertise to the project, offering comprehensive experience in the scientific description of microbial consortia and their metabolic capabilities. Research comprises microbial subsurface processes, which are then evaluated regarding their potential commercial use. As part of the Underground Sun Conversion project, the group investigates techniques that allow for a control of microbial processes in natural gas storage facilities with the focus being put on the microbial formation of methane from hydrogen and carbon dioxide. Insights gained from laboratory experiments (WP2) will feed into implementation of the in-situ reservoir experiments (WP6 and WP7).