Tatiana Demeusy is an engineer and business economist. Since 2008 she held various positions within EnBW AG. For several years she worked as a project manager for renewable energy at Erdgas Südwest GmbH, a subsidiary of EnBW and planed several biogas upgrading plants. From 2016 to 2019, she set up and managed the biogas expertise centre after Erdgas Südwest took over the biomethane trader bmp greengas. Since 2019 she is a Senior Manager for Renewable Gases at the gas value chain division of EnBW AG. She develops business models along the value chain of green gases, represents the company in technical committees and expert groups of various associations and develops positions relating to biogas/biomethane, Bio-LNG and hydrogen. Her current focus, in addition to supporting the Fit-for-55-packages, is on renewable gas verification, sustainability and GHG requirements, and taxonomy requirements.