course: Energy Storage Systems

teaching methods:
lecture with tutorials
computer based presentation
responsible person:
Prof. Dr.-Ing. Constantinos Sourkounis
Prof. Dr.-Ing. Constantinos Sourkounis (ETIT), M. Sc. Philip Krajinski (ETIT)
offered in:
summer term

dates in summer term

  • start: Wednesday the 21.04.2021
  • lecture Wednesdays: from 08:15 to 09.45 o'clock
  • tutorial Wednesdays: from 10:15 to 11.45 o'clock


Die Angaben zu den Prüfungsmodalitäten (im WiSe 2020/2021 | SoSe 2021) erfolgen vorbehaltlich der aktuellen Situation. Notwendige Änderungen aufgrund universitärer Vorgaben werden zeitnah bekanntgegeben.

Date according to prior agreement with lecturer.

Form of exam:oral
Registration for exam:FlexNow


The students are able to select and design the best technical and economical storage system for the respective application. This applies in particular to storage systems for stochastically fluctuating energy sources (regenerative energies) and for low-emission traffic systems (hybrid vehicles).


The lecture 'Energy Storage Systems' deals with different types of storage for chemical, potential, kinetic and thermal energy and their use in power engineering systems. Building on the physical basis of the storage types, their functional principles are discussed. To structure the different types of storage systems, the performance is derived, based on the characteristic curves. For electrochemical energy storage, different types of accumulators are treated. Therefore, the different types of electrochemical processes in the accumulators will be discussed. Pumped storage systems act as a storage of potential energy and vary considerably depending on the morphological conditions of the site. In addition to the electrical subsystems, such as generators and motors, the hydraulic subsystems, such as piping systems and pumps are explained. Finally, the control of turbines, generators and motors will be discussed. Flywheel accumulators are used to store kinetic energy. Starting from the physics, the stationary and dynamic operating behavior of the electrical and mechanical subsystems as well as the entire system is considered. In addition, special technologies for the production of high-speed flywheels are introduced. For thermal energy storage systems, different principles of the storage process, such as sensitive, latent and chemical storage are presented. Furthermore, a subdivision into low and high temperature storage with examples of their different applications is given.



recommended knowledge

  • Basics of Power Engineering
  • Electric Drives
  • Basics of Thermodynamics


Be­cau­se of the unusu­al teaching si­tua­ti­on in the co­ming sum­mer term, we kind­ly ask you to re­gis­ter for the cour­se Energiespeichersysteme (141405-SoSe21) on Mood­le. All fur­ther com­mu­ni­ca­ti­on will be con­duc­ted via this Mood­le cour­se.

Pass­word: zm2d4_ESS21

The lec­tu­re starts on 21 April 2021 at 8:15 am and will be con­duc­ted on­line.

Information about exam registration in the winter term 2020/21: In addition to the exam registration in FlexNow, a registration at the institute is necessary, for which the same deadline applies. Please send an e-mail to, indicating the course for which an exam is desired, in order to find out about possible time slots.