Dr. Subhasish Mukerjee is the Chief Scientific Officer at Ceres Power, a leading clean energy company in the UK focused on solid oxide technology for clean power and green hydrogen.  Dr Mukerjee has worked at Ceres for 13+ years in multiple technology leadership roles where he has led the technology development programs, managed the core development teams and provided key technical leadership in the commercial growth of the company. Dr Mukerjee was part of the team at Ceres which won the prestigious MacRoberts award by the Royal Academy of Engineering in the UK in 2023. 

Dr. Mukerjee recently received the Electrochemical Society’s Subhash Singhal award in 2025. He is an honorary Visiting Professor at Imperial College, London.  Dr Mukerjee is also a strategic advisory board member of UK’s HyRES and HI-ACT hubs which are the leading technology programs for hydrogen research.  Dr. Mukerjee has extensive (27+ years) experience in clean energy technologies and has worked previously at BP Chemicals and at Delphi Corporation. 

Dr Mukerjee was the Technology Leader at Delphi and part of the team which pioneered the development of Solid Oxide for transportation applications like Auxiliary Power units for automobiles and heavy-duty trucks. He was also one of the key Delphi technologists in the US government funded SECA (Solid State Conversion Alliance) program with key collaborator, Pacific Northwest National Laboratories (PNNL). This team was awarded the US Federal Laboratory Consortium award for excellence. He gained his PhD at Yale University and postdoctoral fellowship at Harvard University and has published widely in multiple journals and has multiple patents in his field.  

Stephen started his career as a postdoctoral fellow at the University of Southampton, and the Department of Materials at Imperial College before being appointed as a Lecturer at Imperial College in 2000. He was promoted to Full Professor at Imperial in 2014, and secured a Royal Academy of Engineering Research Chair in Electrochemical Devices in March 2021. He is a Principle Investigator at the WPI International Institute for Carbon Neutral Energy Research at the Kyushu University, Japan. He is the Chair of the 24th International Conference on Solid State Ionics. His research interests lie in the development of new materials, particularly mixed conducting oxides, for electrochemical technologies, including electrolysers and fuel cells, and in the characterisation of their structural and electrochemical properties. His work links the structure and chemistry of materials under realistic (in-situ and operando) operating conditions using a suite of advanced tools including diffraction, microscopy and spectroscopy combined with isotopic labelling. Stephen has authored >180 papers on this topic and contributed seven book chapters and edited two books. Stephen is a Fellow of The Royal Society of Chemistry, and the Institute of Materials, Minerals & Mining (IOM3). He is an Editorial Board member for the Journal of Material Chemistry A and Materials Advances, covering the area of fuel cells and electrochemical systems, and a review editor of Frontiers in Energy Research: Fuel Cells. He was the Director of the Centre for Doctoral Training (Imperial, UCL and Trinity College Dublin) from 2014 until 2021. His achievements have been acknowledged internationally with the award of a Daiwa Adrian Prize, and IOM3 Kroll medal and prize. In March 2023 he was elected as a Fellow of the Royal Society of Edinburgh.