BMW Group are to provide up to 1000 lithium-ion batteries with a capacity of 33 kilowatt-hours (kWh) each to several wind energy parks operated by Swedish utility Vattenfall.

The batteries will function as back-up storage maintaining electricity when wind dies down.
The same type of batteries are used by the car manufacturer in the BMW i3 electric car.

Vattenfall plans to build the first 3.2 MW battery storage facility at its 122 MW Princess Alexia wind farm near Amsterdam. A bigger 22 MW capacity storage facility is planned at the 230 MW Pen y Cymoedd wind farm in South Wales.

The Swedish company won a contract in August from Britain’s National Grid to supply super fast balancing services from the Pen y Cymoedd wind farm.