Digital Transformation in Energy Systems @ TU Berlin


We are energy system modellers researching the most cost-effective pathways to reduce greenhouse gas emissions in the energy system. We also maintain the PyPSA ecosystem.

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Our Research

Climate change is one of the greatest challenges facing society today. Tackling this challenge will require a complete reorganisation of the infrastructure necessary to satisfy our energy needs: electricity generators, storage, energy networks, heating supply, transport and industrial processes. In Europe hundreds of billions of euros of spending per year are at stake, and we do not have time to correct misallocations of investment before climate change takes effect. Accurate modelling and simulation of future energy systems are therefore crucial.

Our group leverages cutting-edge research from a variety of disciplines to understand the most cost-effective pathways to reduce greenhouse gas emissions in the energy system. This involves building models of the energy system and optimising the investment in and operation of the necessary infrastructure. Maintaining sufficient model detail and interdependencies is crucial to avoid misallocation of investment and bad policy advice, but it also presents an extreme computational challenge.

To tackle this challenge we’re developing new algorithms and methodologies so that we can capture these details in a manageable way and therefore provide the best possible policy guidance for the transition to a sustainable energy future.

Our Group



Guest Lecturers



Fachgebiet Digitaler Wandel in Energiesystemen
Institut für Energietechnik
Fakultät III
Einsteinufer 25 (TA 8)
10587 Berlin

office on OpenStreetMap

+49 (0)30 314 22 890
+49 (0)30 314 26 908


Winter Term 21/22

Course Type Lecturers
Wirtschaftswissenschaftliche Grundlagen für Studierende der Ingenieurwissenschaften Lecture Prof. Dr. Tom Brown, Lisa Zeyen
Energy Economics Lecture Prof. Dr. Tom Brown, Dr. Fabian Neumann
New Developments in Energy Markets / Neue Entwicklungen auf den Energiemärkten Seminar Prof. Dr. a.D. Georg Erdmann, Prof. Andreas Grübel, Prof. Dr. Tom Brown, Dr. Fabian Neumann


We are always looking for keen and enthusiastic master students to work in our group.

If you’re interested, please send a CV and a transcript of records to Fabian Neumann.


Current Research Projects

Integration of hydrogen and carbon management into energy system models

Funder: Breakthrough Energy Sciences

Duration: 01.10.2021 - 30.09.2024

Topic: The goal is to improve the representation of hydrogen and carbon management in highly-resolved energy system models for the United States and Europe. This will allow us to carry out research into the future role of clean hydrogen and carbon capture in deep decarbonization scenarios. All code and research data will be made freely available with open source licences.

Further information:

24/7 carbon-free power purchase agreements

Funder: Google

Duration: 01.11.2021 - 31.01.2024

Topic: Traditional Power Purchase Agreements (PPAs) for renewable energy have seen rapid growth in recent years, but they only match supply and demand on average over a longer period such as a year. There is increasing interest from corporations such as Google to match their demand with clean energy supply on a truly 24/7 basis, whether that is using variable renewables paired with storage, or using dispatchable clean sources such as geothermal power. In 2020 Google committed to operating entirely on 24/7 carbon-free energy (CFE) at all of its data centres and campuses worldwide by 2030. In this project we will explore different designs for a 24/7 carbon-free PPA, and how their deployment affects the rest of the energy system.

Further information:

Selected Recent Publications