Matthias Rehfeldt

Matthias Rehfeldt is a Researcher at the Fraunhofer Institute for Systems and Innovation Research ISI, specializing in energy systems modeling and industrial decarbonization. He holds a Ph.D. from the Department of Energy Technology and Energy Systems at Fraunhofer ISI (completed 2020) and a Master's degree in Mechanical Engineering from Beuth Hochschule für Technik Berlin. His work focuses on modeling industrial energy demand, fuel switching, and policy advice for climate-neutral energy systems.

Key research interests include energy transition pathways, hydrogen infrastructure, circular economy impacts, and the technical and economic feasibility of low-carbon technologies. He has contributed to high-profile studies such as the Helmholtz International Research School 'Energy Scenarios' and the Kopernikus Ariadne project. His publications span peer-reviewed journals (e.g., Energy Strategy Reviews, Journal of Cleaner Production) and policy reports, emphasizing the integration of climate policy with industrial innovation.

Notable collaborations include analyses for the European Commission and the German government's climate projections. His recent work highlights hydrogen demand elasticity, electrification of industrial processes, and systemic energy transitions. While no formal awards are listed, his impactful contributions to energy policy frameworks are widely recognized in academic and policy circles.