Fraunhofer Institute for Energy Economics and Energy System Technology


Research fields

The Fraunhofer IEE in Kassel researches for the national and international transformation of energy systems.



Application fields

As an applied research institute, we research and develop solutions for the transformation of energy systems and offer a rich portfolio of services, know-how and products.





New AI methods deliver high-resolution synthetic load time series for optimization and forecasting

The Fraunhofer Institute for Energy Economics and Energy System Technology IEE and its partners in the SyLas-KI research project have therefore developed an AI-supported tool that can be used to create high-resolution synthetic load time series for numerous different consumers. 



International research project reveals: Heat pumps can make a significant contribution when it comes to grid flexibility

Heat pumps are considered an important building block for the heating system of a decarbonized future, as they heat and cool efficiently with electricity. They are particularly useful in an energy system based on renewable energies, as their consumption is easy to plan and the heat can be stored. 



Study shows unused capacities when it comes to the grid connection of renewable power plants

Germany is essentially sitting on a huge treasure trove of unused capacity when it comes to the grid connection of renewable power plants. This is shown by the study on the joint use of grid connection points carried out by the German Renewable Energy Federation BEE together with the Fraunhofer Institute for Energy Economics and Energy System Technology IEE.




pandapower: Open-source-tool hits 500,000 downloads

pandapower is an easy-to-use tool for modelling, analyzing and optimizing power grids with a high degree of automation. It was developed at both the University of Kassel and the Fraunhofer IEE in Kassel. Thanks to its international use and integration into various processes, the software has already achieved 500,000 (partly automated) downloads since its release in 2016.  



Paving the way for large-scale production of green hydrogen energy carriers in Chile

Together with its partners, Fraunhofer IEE is paving the way for the establishment of large-scale production of green hydrogen and its downstream products in Chile. The project’s research focuses on the production potential of hydrogen and liquid fuels from solar energy. In addition to technical issues, researchers are investigating the economic, logistical, and socio-economic aspects of scaling up, through which they will also support the installation of a pilot plant.



Digitalization as the Enabler for High Performance District Heating Systems

Digital technologies are expected to improve the efficiency and system integration of additional renewable sources, as well as making the entire energy system reliable, smarter, and more efficient. Future digital applications may allow district energy systems to fully optimize the operation of their plant and network assets while realizing immediate and feasible decarbonization of urban heat supply: With data to optimize district heating systems and new business opportunities.



Photovoltaic Converters: Reducing Size, Weight and Cost

Within the Research Project “PV-MoVe”, Researchers at the Fraunhofer IEE investigated how to use active switching loss reduction networks for power semiconductors to enable smaller, more lightweight, and more cost-efficient photovoltaic converters.



In favour of cosmopolitanism, diversity, democracy, and the rule of law

Research at Fraunhofer-Gesellschaft would be inconceivable without its employees, including those with migration backgrounds - they are the foundation of our scientific system. Internationality, diversity, and respect are integral components of the Fraunhofer mission statement and the Fraunhofer Code of Conduct.

Current events and trade fairs


Summit | 21.08 - 23.08.2024

PELSS Power Electronics Student Summit

The Power Electronics Student Summit is a specialist conference in the field of power electronics - organized by Hochschule Bonn-Rhein-Sieg (H-BRS) in cooperation with the Fraunhofer IEE. The conference enables students to gain initial experience in the preparation, publication and discussion of their own research work in front of a specialist audience.

 21.08 - 23.08.2024 | Kassel


Fraunhofer IEE | 29.-31.08.2024

European Citizens’ Hackathon Championship "EU Sparks"

Citizens and researchers across Europe join forces to develop new solutions for climate change in three phases. Two different challenges are to be explored with the objective of technological and social innovation solutions adressing climate challenge.  

29.-31.08.2024 | Fraunhofer IEE



Call for Abstracts | Conference of the German AI Service Centers

This year’s focus is on AI in healthcare and the energy sector. The conference is aimed at researchers and interested parties from science and industry, especially from small and medium-sized enterprises with a need for computing power and AI expertise.

18.-19.09.2024 | Göttingen, Alte Mensa


Workshop | 04.12.2024

Grid Planning Tool

This international workshop includes a theoretical overview as well as practical programming lessons with pandapower.

04.12.2024 | online

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Fraunhofer IEE in Social Media

The YouTube format "" publishes high-quality journalistic films in a cooperation project of Fraunhofer IEE, the non-profit project company m4future and Jörg Moll Filmproduktion.