Dr. Witold- Roger Poganietz is currently the Head of Energy Research for the 'Institute of Technology Assessment and Systems Analysis (ITAS)' at Karlsruhe Institute of Technology (KIT) in Germany. His expertise include: bioenergy; wastes and residuals to energy (mainly focusing on Europe and South America), energy systems development in Brazil and Chile incl. energy accessibility; the German energy transition, implementation of renewable energies (incl. waste and residuals) in energy systems; socio-technical scenario development, and sustainability assessment.