Bosch uses hybrid battery system for energy storage

The Bosch energy storage solution in Braderup consists of a vanadium redox flow battery from Vanadis Power and a Sony lithium-ion battery store.

The Bosch energy storage solution in Braderup consists of a vanadium redox flow battery from Vanadis Power and a Sony lithium-ion battery store. Photo credit: Robert Bosch GmbH

Residents in blustery Braderup, Northern Germany, will be celebrating a Christmas with a difference this year. The energy to cook their Plätzchen will have been plucked from thin air… with help from a groundbreaking energy storage project.In July, the 670-or-so-strong community installed what is believed to be one of Europe’s biggest grid-scale lithium-ion (Li-ion) and vanadium redox flow battery systems to store excess wind energy.

The project, delivered by the German engineering and electronics giant Bosch, is said to have been prompted by a local farmer’s frustration at wind turbines overloading the grid and causing power cuts during gales on the North Frisian coast.

A group of 200 private investors from the community got together, as Braderup-Tinningstedt, to fund their own private wind farm, which installed six 3.3MW turbines at the end of 2013.

Braderup-Tinningstedt then formed Energiespeicher Nord, a joint venture with Bosch, to create the energy storage facility, one of the largest in Europe.
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