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SESSTAM Symposium
Stationary Energy Storage System Technology, Application & Market
Wednesday, January 28 and Thursday January 29, 2015

AABC Europe 2015 - SESSTAM Symposium: Stationary Energy Storage System Technology, Application and Market - Session 2

Session 2:

Large Energy-Storage Systems for the Grid

Large Lithium-Ion batteries are being evaluated in numerous stationary energy-storage applications in competition with high-temperature (sodium-based) and redox flow batteries to support the energy-storage needs of large utility applications. This session reviewed the technology's commercial progress and the cost-performance prospects of the various storage solutions.



Wolfgang Weydanz


Session Chairman:

Wolfgang Weydanz, Key Expert for Energy Storage, Siemens Corporate Technology, Siemens AG


Dr. Wolfgang Weydanz works in Corporate Technology at SIEMENS AG. For over 20 years he has been active in the field of electrochemical and electrical energy storage with emphasis on lithium ion batteries. He studied Physics in Erlangen, Germany, and Vancouver, Canada, and received his PhD from Ulm University in Germany. His working experience is as developer of one of the first high power lithium-ion systems worldwide (with GAIA Akkumulatorenwerke), setting up and managing R&D departments with several battery companies in the field of lithium-ion, NiMH and zinc air rechargeable systems (Sanyo Component Europe and ReVolt Technology Ltd). He has a strong background with system integration and application of energy storage. He massively widened his application know how and storage expertise to other fields in electrochemical, thermal and mechanical energy storage as well as renewable energy technologies. He is currently “principal key expert” for energy storage at Siemens Corporate Technology. Further he is author of a book on multiple battery technologies and applications published in 2006, a number of scientific publications, and over 50 declarations of invention / patents filed in the field of energy storage and conversion.

  1. Aspects of Vehicle Electrification and Large Stationary Storage Systems
    Bengt Stahlschmidt, Head of Sales CellCube, GILDEMEISTER energy solutions
    Vehicle Electrification is on the rise all over the world and market forecasts predict an increase of their market share by 400% until 2020. The current grid infrastructure will have problems handling this growth. Especially, with the implementation of fast charging systems, grids have to be upgraded on a large scale in order to meet industry’s needs. On the one hand that process is extremely costly and on the other hand grid systems cannot expand fast enough. GILDEMEISTER energy solutions produces energy storage systems on vanadium redox flow basis that act like a buffer system and, as a consequence, can shave energy peaks and reduce network load that occur while loading vehicles with higher power.

    This presentation will give an overview about vehicle electrification and the barriers arising due to the fast growth of this sector. Furthermore, it will explain how large stationary storage systems can contribute to grid stabilization and support new vehicle charging technologies.

    In the presentation the following questions will be answered:

    • How will the market for vehicle electrification develop?
    • What are the charging options for electric vehicles today?
    • What grid problems currently occur when loading vehicles?
    • What role do energy storage systems play in the vehicle electrification development?
  2. Operation Methods for Vehicle to Grid (V2G)
    Andreas Varesi, Managing Director, Technomar GmbH
    This presentation discusses innovative Operation Methods for Vehicle to Grid (V2G) based on the results and solutions from European Commission’s FP7-funded projects SMARTV2G and MOBINCITY. The communications between charge stations-FEV-operators, the forecast of energy grid, the expected demand of loads and how to integrate this future mobility models into smart grid solutions are mainly aspects covered in this presentation.
    • Smart Vehicle to Grid Interface Project (SMARTV2G)
      Its aim is to enable the smart connection of electric vehicles to the grid, with a safer, more energy efficient and convenient power and data transfer.
    • Smart Mobility in Smart City Project (MOBINCITY)
      Its aim is to optimize the range of electric vehicles through an interaction between driver, vehicle and transport and energy infrastructures. This innovative solution will take advantage of the information provided from these sources in order to optimize both energy charging and discharging processes by trip planning and routing.
  3. Pellworm Island Energy-Storage System Project (Redox Flow/Li-Ion)
    Tobias Blank, Project Engineer, E.ON Technologies GmbH
    On Pellworm, a German island in the North Sea, the yearly power generation is about three times as high as the consumption. To make better use of this local surplus and to provide a sustainable power supply, a storage system is necessary. This enables additionally a direct marketing of renewables as well as reserve power applications.

    For sustainable power supply it is necessary to store energy from hours up to one day. For the provision of reserve market applications a minutes to hour storage system is needed. To all mentioned applications and reduce investment costs a hybrid battery storage system was built. It combines a 1.6 MWh redox-flow battery with a 560 kWh lithium ion battery and intelligent power electronic.

    This paper presents the Pellworm energy system and the hybrid battery storage system concept. A strong focus will be given to the design of the redox flow battery system. First results of the demonstration phase will be presented.

  4. LIB Battery for Large Storage Container
    Wolfgang Weydanz, Key Expert for Energy Storage, Siemens Corporate Technology, Siemens AG  
  5. Automotive Platform for Stationary-Battery Storage
    Andreas Rueckemann, Head of industrial & stationary applications / Business Development, Li-Tec Battery GmbH
    Li-Tec Battery GmbH and its sister company Deutsche ACCUmotive GmbH & Co. KG, both 100% affiliates of the Daimler group, are dedicated to the production and application of Li-Ion based cells and batteries, respectively. At their joint production site in Germany they form the probably most integrated Li-Ion battery production location in Europe. Based on their profound knowledge of cell chemistry they combine a vast experience in quality, safety and reliability with a strict design-to-cost of its automotive serial production of batteries. This is now going to be leveraged also to the application of batteries in medium and large size stationary battery storages.

    The presentation will focus on

    • Automotive platform for Li-Ion batteries of various types
    • Which production intermediate can be used best as basis for stationary applications?
    • How can be developed a scalable product platform for stationary?
    • Which DC string size is most suitable?
    • Which size of storage systems can be achieved and which markets addressed?
    How to best use automotive battery experience for stationary applications
  6. Technology and its Advance of the Large Format Energy Storage Battery Systems
    Helge Malenda, New Business Development Manager / Battery Solutions, Hitachi Chemical Europe GmbH
    As the large format battery energy storage system is becoming widespread, the development of battery system, upper system like remote monitoring system and its operation as well as battery itself is widely advancing. The overview of the technology from the cell to the upper system and future development of Hitachi Chemical will be introduced.
    • Long-life VRLA Batteries
    • Li-ion Batteries
    • Hybrid Battery Systems