WS1: Cellular Concept


Prof. Dr. Rainer M. Speh
is the Chief Technology Officer (CTO) of Siemens Ltd. headquartered in Riyad, Kingdom of Saudi Arabia since February 1, 2015.
Before that he worked in the Infrastructure & Cities Sector as well as in the Business Unit Power Plant Controls of Siemens as their CTO for more than 15 years. From 1985 – 1999 he joined several positions at ABB AG and AEG Aktiengesellschaft. He received his Professorship from the Technical University Kaiserslautern, Germany, in 2014 and is lecturing since 1996. He earned his PhD from the Technical University of Darmstadt in 1985, where he also studied Electrical Power Engineering from 1975 - 1980. Prof. Speh is currently the Past President of the Power Engineering Society (ETG) within the Association for Electrical, Electronic & Information Technologies (VDE) of Germany.


Prof. Dr. Peter Schegner received his Dipl.-Ing. degree in electrical power engineering from the Darmstadt University of Technology, Germany and his Dr.-Ing. degree from Saarland University, Germany in 1989.
Since 1995 he is Professor at the Institute of Electrical Power Systems and High Voltage Engineering, TU Dresden, Germany. He is a Senior Member of the IEEE Power Engineering Society.

Dr.-Ing. Joerg Dickert holds a phd in electrical engineering, He studied electrical power engineering at the Dresden University of Technology, Germany and Drexel University, Philadelphia, USA.
He was a researcher at the Dresden University of Technology working in the field of electrical network planning and operation. He has a deep understanding on the challenges of the "Energiewende" to the distribution system. During this time he participated at the VDE-ETG Task Force which compiled the concept of cellular energy networks. Since 2016 he has been working for ENSO NETZ GmbH, a regional network operator, elaborating strategies and future network concepts.


The German Energiewende is the most ambitious project of the energy industry world-wide. According to the announcements of the German government on September 26, 2010, 80 % of the generation for electricity should be based on renewable resources by the year 2050. All experts agree that the energy system fulfilling these requirements of the year 2050 will look totally different as the ones we are using today. A taskforce of the German Power Engineering Society (ETG) as part of VDE, the German Association of Electrical, Electronic & IT Technologies, comprising members of different energy domains developed a concept, which seems to meet the requirements of a energy system being based on at least 80% renewable resources.
In the beginning, a more general introduction to the German Energiewende and the current achievements as well as some basic considerations are presented concerning design and operation of multi-modal energy systems. Additionally an overview on existing and missing technologies is given. The second part will present the results of the VDE/ETG Taskforce on the “cellular Concept”. This will comprise the process to structure the problem, working results and the recommendations how to proceed. Participants of the workshop will be asked in the third session to give short presentations on alternative solutions or ideas how to manage energy systems with a high degree of renewable resources. The final part will be an open discussion including Question & Answers. As the final result, the impact and the requirements to the ICT industry should be available when establishing cellular structures.


Time Duration Content by
09:00 00:00 Start of Workshop  
09:00 01:30 Introduction Prof. Dr. Rainer M. Speh
    - goals of the German Energiewende and current achievements  
    - the new paradigm for design and operation of energy systems – the cellular concept  
    - existing enabling technologies  
    - missing technologies and white spots for R&D activities  
10:30 00:30 Coffee Break  
11:00 01:30 The cellular Concept Dr. Joerg Dickert
    - introduction to VDE/ETG tructure and taskforces  
    - the basic concept and related building blocks  
    - three different scenarios: the multi-domain concept  
    - the cellular concept mapped to Germany  
12:30 01:00 Lunch Break  
13:30 01:30 Alternative Solutions Prof. Dr. Rainer M. Speh
    - contributions from the audience on alternative approaches  
15:00 00:30 Coffee Break  
15:30 01:30 Open Discussion Prof. Dr. Peter Schegner
    - Q&A on the first two sessions  
    - feedback from the audience  
    - SWOT analysis and comparison with other approaches  
    - impact & recommendations to the ICT industry  
    - optional: panel discussions; participants tbd  
17:00 00:00 End of Workshop