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Image credit: Vattenfall

BMW i3 batteries provide energy storage for UK wind farm

A total of 500 packs promise reliable green power.
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Vattenfall

The UK is now home to one of the largest energy storage projects using EV batteries. Vattenfall has connected a total of 500 BMW i3 batteries to the Pen y Cymoedd onshore wind farm in Wales, creating the biggest co-located installation in the UK. The add-on (housed in six containers like the one above) will help provide a more reliable source of renewable energy -- it'll provide consistent, readily available power.

This isn't the first time car batteries have been used for renewable power. Renault is reusing Zoe batteries on a 'smart island,' for example. It's Vattenfall's largest rollout to date, though, and it hints at what electrical grids may eventually look like in the UK and beyond: wind and solar sources backed up with batteries from car manufacturers.

This also illustrates how some automakers may thrive going forward. Large-scale battery deployments like this not only help them make the most of their EV production (they don't have to limit battery production to cars), it helps them reuse batteries when owners retire their vehicles.

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