Imperial College London


Faculty of Natural SciencesCentre for Environmental Policy

Research Assistant







432Bone BuildingSouth Kensington Campus





Matthias is a research assistant and PhD student in the Clean Energy Processes (CEP) Laboratory and the Centre for Environmental Policy at Imperial College London. He mainly works with Professor Christos Markides and Professor Niall Mac Dowell.

Matthias is interested in the modelling and optimisation of decarbonisation pathways for integrated energy systems. He works with both technology-level and whole-energy system models. Specific interests include:

  • Heat pumps, solar-thermal systems, combined heat and power plants, and organic Rankine cycles.
  • Large-scale thermo-mechanical energy storage systems, including compressed-air energy storage.
  • Optimal decarbonisation pathways for integrated regional & national-scale energy systems and suitable policies
  • Carbon capture and storage

Prior to joining Imperial College, Matthias obtained a BSc degree in Mechanical Engineering as well as an MSc degree in Energy Engineering from RWTH Aachen University in Germany. During his studies, Matthias worked as an undergraduate researcher at

  • the Laboratory for Machine Tools and Production Engineering,
  • the Center for Wind Power Drives,
  • and the Institute for Energy Efficient Buildings and Indoor Climate

of RWTH Aachen University. He also spent 6 months at the University of Waterloo, Canada.

Selected Publications

Journal Articles

Mersch M, Sapin P, Olympios AV, et al., 2023, A unified framework for the thermo-economic optimisation of compressed-air energy storage systems with solid and liquid thermal stores, Energy Conversion and Management, Vol:287, ISSN:0196-8904, Pages:1-15

Mersch M, Markides CN, Mac Dowell N, 2023, The impact of the energy crisis on the UK’s net-zero transition, Iscience, Vol:26, ISSN:2589-0042, Pages:1-24

Lotfi M, Mersch M, Markides CN, 2023, Experimental and numerical investigation of a solar-thermal humidification-dehumidification desalination plant for a coastal greenhouse, Cleaner Engineering and Technology, Vol:13, ISSN:2666-7908, Pages:1-15

Olympios AV, Aunedi M, Mersch M, et al., 2022, Delivering net-zero carbon heat: technoeconomic and whole-system comparisons of domestic electricity- and hydrogen-driven technologies in the UK, Energy Conversion and Management, Vol:262, ISSN:0196-8904


Mersch M, Olympios A, Sapin P, et al., 2021, Solar-thermal heating potential in the UK: A techno-economic whole-energy system analysis, ECOS 2021 - The 34rth International Conference On Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS

More Publications