Jonathan Cullen (Group Leader)

Jonathan is the University Lecturer in Energy, Transport and Urban Infrastructure at the University of Cambridge and a Fellow of Fitzwilliam College. He studied Chemical and Process Engineering at the Univerisity of Canterbury, New Zealand. After 10 years working in industry and in development work in Peru, he moved to Cambridge for the MPhil in Engineering for Sustainable Development, then completed a PhD on the Engineering Fundamentals of Energy Efficiency, before taking up roles of Research Associate and then University Lecturer.

Karla Cervantes Barrón (PhD Student)

Karla has a Bachelors’ degree in Chemical Engineering from the National Autonomous University of Mexico (UNAM). Alongside the last two years of her degree, she did an internship with the Coca-Cola Company. Subsequently, she spent a year working as an Environmental Coordinator for Danone’s Water Division in Mexico, where she managed information from production plants, performed budget analysis, and coordinated and reported environmental information.

Leonardo Paoli (PhD Student)

Leonardo graduated as a mechanical engineer from Imperial College London in 2014. During his undergraduate studies he conducted research on sustainability related topics such as sustainable transport policy and Life Cycle Assessment (LCA) of a hybrid concentrated solar power plant. After his graduation he worked as a Trainee for the European Commission in the Directorate General for Research and Innovation. Leonardo’s PhD aims to build an Ashby-type map for energy efficiency of conversion devices relating energy efficiency and cost to other physical variables.

Charalampos (Harry) Michalakakis (PhD Student)

Matteo Craglia (PhD Student)

Matteo graduated with a 1st class honours in mechanical engineering (BAI) from Trinity College Dublin and subsequently completed an MPhil in Energy Technologies in Cambridge in 2016. Matteo’s PhD research focuses on energy efficiency in the rapidly evolving transportation sector. Viewing transport as a service, the project will investigate the trade-offs between the quality of transportation and energy efficiency. Matteo is funded by the UK Engineering and Physical Research Council (EPSRC).

Cyrille Dunant (Postdoctoral Research Associate)

Dr Dunant holds a PhD in Material science. His background in concrete durability has led him to develop an interest in design and efficient use of materials. He is now currently working on two projects, both centred on making better use of steel in construction. The first explores the barriers to steel reuse, an important potential source of carbon and energy savings. The second project looks at the design process in construction and the role of material efficiency in building conception.


Jennifer Bitting (PhD Student)

Jennifer is researching a resource efficient means of obtaining sustainable water supply for California’s Central Coast. She has a BS in Environmental Engineering from California Polytechnic State University, San Luis Obispo and an MPhil in Engineering for Sustainable Development from Cambridge University. Jennifer is a registered professional civil engineer (PE) in the state of California. She worked for the California Central Coast Regional Water Quality Control Board for 7 years as Storm Water Program Manager.

Michał Drewnik (Postdoctoral Research Assistant)

Michal is a Research Assistant in Material Efficiency in Construction at the Department of Engineering, University of Cambridge. His background is civil engineering and he holds a M.Sc. Eng. with PhD in concrete technology pending from Silesian University of Technology in Gliwice, Poland. During his PhD, he worked on the technological factors which determine the self-compacting concrete formwork pressure. Prior to his current position, Michal worked as a Site Engineer and Concrete and Production Technologist at Precast Concrete Manufacture.

Past People

Ana Gonzalez Hernandez (PhD Student)

Ana graduated with a first class honours  MEng in Mechanical Engineering from Imperial College London in July 2014. Shortly after, in October 2014, she started her PhD in the University of Cambridge in collaboration with Emerson Electric. The aim of her PhD is to evaluate the potential of coupling the use of Sankey diagrams for energy and material flow analysis to site-level process analysis in a factory. Data collected from installed process control systems will be used to perform thermodynamic analyses on the site’s process streams.


Peter G. Levi (PhD Student)

Peter graduated with a first class honours degree in Civil Engineering (MEng) from the University of Bristol, having spent a year studying abroad at the University of California at Davis. He then went to work in industry as an engineering consultant for two years, before pursuing post-graduate study. Peter completed an MPhil degree in Engineering for Sustainable Development at the University of Cambridge, exploring uncertainty in levelised cost estimates for electricity generation technologies in the UK, and was published as an article in the journal Energy Policy.

Sebastian Brazell (Research Assistant)

Sebastian graduated with a first class honours degree BSc in Computer Science at Anglia Ruskin University in July 2015. During his studies he focused primarily on software development and human computer interaction. For his major project he investigated the application of wearable technologies in predicting health related epidemics, such as influenza. The focus on which was the current ability of wearable devices to accurately monitor and identify activity of a wearer throughout a typical day. Since graduating he has been working as a Junior Graphic Designer.