Siemens plans 200-MWh battery storage in Bavaria to use surplus renewable energy

Siemens Smart Infrastructure and Zukunftsenergie Nordostbayern GmbH (ZENOB) signed a letter of intent for the turnkey construction of a battery storage facility in Wunsiedel, Bavaria with a capacity of 100 MW / 200 MWh. The storage is intended to contribute to the use of surplus renewable energy and cover peaks in demand in the power grid. Supplied by manufacturer Fluence, a joint venture between Siemens and AES, the 5,000-square-meter lithium-ion storage facility is calculated to be able to supply 20,000 average households with electricity for a year. Siemens is responsible for project management as well as the construction of a medium-voltage switchgear and the high-voltage grid connection.
The planned storage system would be able to store and retrieve large amounts of green electricity, which would thus no longer need to be regulated. »This also benefits the upstream grid operator, because it gives him more flexibility to compensate for voltage fluctuations that are increasingly occurring due to the expansion of renewable energy generation,« said Bernd Koch, chief technologist Energy Performance Services at Siemens Smart Infrastructure. For the grid operator, he said, the solution promises to significantly reduce the load. »Switching on and off the large industrial plants in the grid area requires a lot of electricity,« said Siemens project manager Andreas Schmuderer. »Up to now, the grid operator has had to keep considerable reserves for this. If these are eliminated in the future, this holds great potential for reducing carbon dioxide emissions in the local energy market.«
© PHOTON

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