Mr. Grünbeck (1977) holds a PhD in process engineering from the Otto-von-Guericke University in Magdeburg. He had started his work life in the department of plant safety as an authorized expert. There he supported process safety analyses as a moderator and expert in the chemical and power plant field. His first contact to turnarounds he got as an inspector during the turnarounds in various C-4 plants in Marl. Since 2014, he is responsible for the coal-fired power plant in Marl. There he has to ensure the plant availability, manage the maintenance in line with the budget and he is in the lead for projects and the turnarounds.