Dr. Eglantine Künle
has been working as a manager and Chief Modeller at EWI since 2018. Her responsibilities include the acquisition, operation and execution of applied research and consulting projects. Together with the research associates, she focuses on the maintaining improvement of existing as well as the development of new models and methods. Her research focus lies in the field of planning, modeling and economics of power systems and energy markets. Before her time at EWI, Eglantine Künle worked as a Research Assistant at Clausthaler Umwelttechnik Forschungszentrum (CUTEC). In 2018, she earned her doctorate at TU Clausthal with a thesis on “Incentives to value the dispatchable fleet’s operational flexibility across energy markets”. Previously, she studied Mechanical Engineering at Karlsruhe Institute of Technology (KIT) and at Arts et Métiers ParisTech, Paris (France).
Sponsor: Federal Ministry of Education and Research (BMBF)
Central and Decentralized Features of Future System Structures – Study within the Copernicus Project ENSURE
The Copernicus project ENSURE is developing the power grid of the future. In eight communities in Schleswig-Holstein, the project wants to build up this future grid on a test basis in the coming years. In order to do so, however, the project must first know what the future looks like whose grid it is developing. To this end, ENSURE has developed four possible storylines by 2019 on what Germany’s energy supply could look like in 2030. On the basis of these storylines, this ENSURE study examines how much centralized and how much decentralized power supply makes sense from a technical and economic perspective – and is socially accepted. The result: no matter which of the four storylines is politically pursued in the coming years – there is always a need for expansion at both the central and decentralised levels of the electricity system. In contrast to previous studies, the ENSURE analysis takes into account various future scenarios as well as parameters relating to market, network and information and communication technology infrastructure. It also includes data on final energy consumption, primary energy use, energy conversion and energy storage.
Client: Siemens AG
Development of the momentary reserve and estimation of the need for Fast Frequency Response in the European network system
Together with ef.Ruhr, EWI investigated the development of frequency stability in Germany on behalf of Siemens AG. With the help of the European electricity market model DIMENSION, the power plant parks of two scenarios were optimized for the year 2040. The first scenario exclusively depicts the German coal phase-out, while the second scenario additionally assumes that the European countries with a high proportion of conventional power generation will make a change towards renewable energies. As indicators for the frequency stability of the resulting systems, ef.Ruhr uses a point model to determine the frequency gradients, grid start-up time constants and dynamic frequency minima.
The analyses carried out show that there is a need for action in order to be able to guarantee the frequency stability of the energy supply system in the year 2040 without restrictions. The decrease of the instantaneous reserve due to decreasing energy from conventional power plants results in the shortfall of the permissible frequency minima as well as in a critical increase of the frequency gradients, which can cause critical system states in each case. An increase in the instantaneous reserve or an acceleration of the primary control power can guarantee frequency stability.
Auswirkungen des Kohleausstiegs auf die Frequenzstabilität im Energieversorgungssystem
Christian Wagner, Philipp Theile, Dr. Eglantine Künle, Marco Greve; 2020
In: et - Energiewirtschaftliche Tagesfragen, Vol. 70 (3), pp. 19-22.