J.K.A. (Jannis) Langer


I am a PhD candidate at the department of Engineering, Systems and Services in the research group of Energy & Industries. My academic background is Mechanical Engineering (BEng) at OTH Regensburg, Germany and Sustainable Energy Technology (MSc) at TU Delft. From 2018 until 2020, I was a Junior Consultant in Energy and Environmental Innovation for one of the biggest retail groups worldwide. There, I implemented multiple projects in the fields of solar photovoltaics, battery storage and e-mobility.


My research revolves around renewable energy technologies and their socio-economic integration to existing energy systems. One of them is Ocean Thermal Energy Conversion (OTEC), a promising technology for clean electricity production using the heat stored in the ocean. While my former studies looked at OTEC’s economic potential from a global perspective, my recent work focusses more on Indonesia. My PhD thesis covers the combined techno-economic potential of several renewable energies and their system integration in Kalimantan and Bali, Indonesia.

  • Langer J, Quist J, Blok K. Recent progress in the economics of ocean thermal energy conversion: Critical review and research agenda. Vol. 130, Renewable and Sustainable Energy Reviews. Elsevier Ltd; 2020. https://doi.org/10.1016/j.rser.2020.109960
  • Langer, J., Quist, J., Blok, K. Review of Renewable Energy Potentials in Indonesia and Their Contribution to a 100% Renewable Electricity System. Energies 2021, 14, 7033. https://doi.org/10.3390/en14217033
  • Langer J, Infante Ferreira C, Quist J. Is bigger always better? Designing economically feasible ocean thermal energy conversion systems using spatiotemporal resource data. Vol. 303, Applied Energy. Elsevier Ltd; 2022. https://doi.org/10.1016/j.apenergy.2021.118414
  • Langer J, Quist J, Blok K. Upscaling scenarios for ocean thermal energy conversion with technological learning in Indonesia and their global relevance. Vol. 158, Renewable and Sustainable Energy Reviews. Elsevier Ltd; 2022. https://doi.org/10.1016/j.rser.2022.112086
  • Langer J, Cahyaningwidi AA, Chalkiadakis C, Quist J, Hoes O, Blok K. Plant siting and economic potential of ocean thermal energy conversion in Indonesia a GIS-based methodology. Vol. 224, Energy. Elsevier Ltd; 2021. https://doi.org/10.1016/j.energy.2021.120121

Regional Development Planning and Ideal Lifestyle of Future Indonesia

By Utilizing Advance Green Energy Technology and Trans/Inter-disciplinary Approaches

Jannis Langer

PhD candidate

  • Faculty of Technology, Policy and Management
    Building 31

    Room: A3.370

Engineering Systems and Services

Energy and Industry

Research interests:
Renewable Energy Potential
Renewable Energies in Indonesia
Geospatial resource mapping 
Ocean Thermal Energy Conversion (OTEC)
Energy system modelling
Energy economics

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