Research fields

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



Business units

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.


Joint research under one roof

The time has finally come: it is May 2022 and our employees have moved into the new building. The offices are gradually being occupied and the move is for the most part completed. Some of the laboratories and their infrastructure have been in operation for a while and have already passed the practical test.

Our new Address

Joseph-Beuys-Straße 8
34117 Kassel


More Information and Directions




Fraunhofer IEE
reduces forecast
errors for solar eclipse

he integration of photovoltaics into power grids requires increasingly better forecasts, especially with increasing capacities, because uninterrupted grid operation does not accept avoidable errors. In this context, rare meteorological events still present particular challenges. In addition to volcanic ash and Saharan dust, a solar eclipse requires the attention of grid operators, electricity traders and forecasting service providers. At the Fraunhofer Institute for Energy Economics and Energy System Technology IEE, a solution has now been developed to combine the degree of occultation with established weather forecast models specific to the location and time.



Norwegian hydropower in a GHG-neutral Europe: the HydroConnect project

Hydropower is an essential part of the Norwegian energy system. The HydroConnect project is investigating whether and how Norwegian hydropower can contribute to climate protection in Europe. HydroConnect is a collaborative project of the Fraunhofer Institute for Energy Economics and Energy System Technology IEE, the Norwegian research organization SINTEF Energy Research, the Norwegian University of Science and Technology (NTNU) and the University of Trento. HydroConnect is co-funded by the Norwegian Research Council.



Fraunhofer IEE presents Applied Research Solutions for the Energy Industry at E-World 2022

From June 21 to 23, 2022, at the leading exhibition for the European energy industry E-World energy & water 2022 in Essen, Germany, the Fraunhofer Institute for Energy Economics and Energy System Technology IEE presents services and solutions for the energy industry derived from application-oriented research. At the group stand of the Fraunhofer Energy Alliance (Hall 5, Booth 326), Fraunhofer IEE will show know-how from the business units "Analysis and Consulting for Energy Economics”, "Energy Meteorology Information Systems", "Digital Portfolio Management" and "Grid Planning and Operation".



Data4Grid Challenge: Fraunhofer IEE Consumption Forecasts receive an Award

Dominik Jost, Jonas Koch and Dominik Beinert, scientists at the Fraunhofer Institute for Energy Economics and Energy System Technology IEE, have won the Data4Grid Challenge "AI-supported consumption forecasts based on smart meter data". The competition was organized by the German Energy Agency (dena) and umlaut. The results and award ceremony presentation took place at the Future Energy Lab in Berlin on May 4, 2022.



Management of reactive power in distribution grids: Fraunhofer IEE and partners develop new method

With the decentralisation of power generation, distribution grid operators are increasingly required to mobilise reactive power depending on the situation. In the research project "RPC2", Fraunhofer IEE, together with partners from grid operation and the University of Kassel, has now developed procedures with which grid operators can control generation and other plants in the medium and high-voltage level in such a way that they provide reactive power according to demand.



New Power Electronics for a Brighter Future

New technologies for use in next-generation photovoltaic inverters are in development and undergoing practical testing as part of the GaN-HighPower project.



Head change at Fraunhofer IEE: Mackensen succeeds Rohrig

As of February 15, 2022, the management of the Fraunhofer Institute for Energy Economics and Energy System Technology IEE in Kassel will be taken over by Dr. Reinhard Mackensen, who the Fraunhofer Executive Board has commissioned to run the business until the ongoing appointment procedures at the TU Darmstadt and the University of Kassel for a new dual leadership in the institute's management have been completed.



Study "The limitations of hydrogen blending in the European gas grid"

A study on the use, limitations and cost of hydrogen blending in
the European gas grid at the transport and distribution level.  A study undertaken on behalf of the European Climate Foundation (ECF).  

Current events and trade fairs


Tutorial / 5.9.2022

EPE ´22, ECCE Europe

Tutorial at EPE ´22, ECCE Europe
Switching Loss Measurements in Power Semiconductors

We investigate the possibilities to measure these fast switching transients and rate the suitability of available current and voltage sensors for this task.

5. 09 .2022 | Hannover



Online-Workshop / 14.9.2022

Grid Planning Tool

A theoretical overview as well as practical programming lessons with pandapower – an open source tool for automated analysis and optimization of power grids 

14.09.2022 9-11 am | online