Jens Gröger is a Senior Researcher at the Oeko-Institut in Berlin and has been working there in the area of products and material flows since 2009. He is a skilled communications electronics technician and a graduate engineer in energy and process engineering. Jens Gröger investigates the environmental impacts of products and services along their value chain. His research focuses on the areas of information and communication technology (ICT) and digital transformation. This includes the life cycle assessment of ICT products and business models, the development of award criteria for the Blue Angel eco-label, the definition of minimum requirements for green public procurement, and new assessment methods for efficient data centres, telecommunications networks and resource-efficient software.