E.ON is involved in the construction of the world’s only modular large-scale storage battery

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This year, in Aachen, the E.ON Energy Research Centre at the University of RWTH, and manufacturer of the Exide Technologies GmbH’s GNB Industrial Power Division; the beta-motion GmbH; and the producer of SMA Solar Technology AG inverters, will build a large-scale modular storage battery – the only one in the world – with a capacity of 5 megawatts. The project, called Modular Multi-Megawatt Multi-Technology Medium-Voltage Battery Storage, or M5BAT, will receive funding of €6.5m from the German Ministry of Economic Affairs for Energy.
What makes the M5BAT different is its modular nature, which optimally combines different battery technologies. It uses high performance lithium ion batteries for short duration discharge, high temperature batteries for average discharge, and lead-acid batteries for either short or long duration discharge.
This storage system will have a wide range of applications. In a first phase, the project will focus on integrating renewable energy, checking the forecast for distributed energy production in order to improve the stability of the grid, and monitor energy prices.
E.ON will be responsible for planning and constructing the facility for the storage system, and developing and testing marketing strategies for launch in the market of future products of this type. The Institute of Energy Systems and Energy Economics at the RWTH University in Aachen will provide backing for the research.
Meanwhile, the E.ON Centre for Energy Research at the RWTH University in Aachen will operate the system, integrating it into the grid and providing scientific support. The manufacturers, Exide Technologies GmbH, Beta-motion GmbH, and SMA Solar Technology AG, will provide the technical components and direct the operating test.
Project Management Jülich (PTC) will be responsible for coordinating the investment on behalf of the German Ministry of Economy and Energy Affairs. The construction of this system will begin in the autumn of 2014 and large-scale storage will commence in 2015.