Research project STAWESOM

Stability-related further development of energy system optimisation models

Ensuring system stability is crucial for a secure and reliable energy supply. In times of increasing use of renewable energies and the integration of different energy sectors, it is therefore important that system stability is already considered in energy system planning. Conventional optimisation models, such as those used in energy system analysis, are often unable to capture these dynamic aspects, which can lead to imprecise solutions and increased costs. The STAWESOM project, funded by the German Federal Ministry for Economic Affairs and Climate Action, aims to develop and apply new methods to overcome these challenges.

Research project STAWESOM



January 2023 to December 2025

Funded by

Federal Ministry for Economic Affairs and Climate Action

Project participants

  • University of Stuttgart, Institute of Combustion and Power Plant Technology
  • Institute of Networked Energy Systems

The aim of the STAWESOM project is to better integrate dynamic stability into energy system optimisation models. To this end, the project participants are developing new methods that take into account the dynamic aspects of sector coupling and are integrated into the REMix energy system optimisation model developed at DLR. In order to keep the complexity of the model manageable, simplified constraints are used. The results are then compared with conventional approaches to grid expansion planning. For this purpose, new grid data sets will be created as part of the project, which – like the dynamic simulation models to be developed – will be made available to the research community as open data.

At the Institute of Networked Energy Systems, the STAWESOM project is initially focussing on the development of a transparent data basis that takes into account the dynamic aspects of system components. The project team is creating methods for taking dynamic grid stability into account in energy system planning and developing a procedure for identifying stability-critical grid situations and faults. Another focus is the methodological expansion of the REMix modelling tool: the aim here is to integrate the dynamic stability described above and reduce the number of scenarios, and then to compare these methods with previous approaches in the application.

The project results are regularly presented in workshops to discuss the methods developed and to work out options for action for politics and industry. These new approaches will help to improve the stability and efficiency of future energy systems and thus make the energy transition safe and cost-efficient.


Energy System Modelling

Research Group
Institute of Networked Energy Systems