This is a brilliant example of how the huge strides in e-mobility and the uptake of EVs can have a knock on effect on the storage of renewable energy. Utilising the same technologies has led to Mercedes-Benz, Nissan, BMW and of course Tesla into the stationary energy storage space. As the demand has grown massively for EVs, batteries prices are plummeting making the business case for installing storage in conjunction with renewable energy plants stack up. Stationary energy storage projects can also be a great use for EV batteries which have come to the end of their useful life in a car but still are perfectly adequate for less demanding applications, as demonstrated by Nissan with their partnership with Eaton.
Swedish energy major Vattenfall has partnered with BMW Group to add battery storage capabilities at its largest onshore wind farm in Wales. The agreement will see the Pen y Cymoedd wind farm, which reached its full generation capacity earlier this month, equipped with up to 1,000 lithium-ion batteries each with a capacity of 33kWh and using the same battery technology as that used within the i3 car. The combined capacity of >33MWh will be managed using a BMW-designed control system, and work is expected to commence in July.