The systems, labelled 'Advanced Battery Storage', will be able to store and provide a minimum of 60MWh of electricity to even out fluctuations between production and consumption in grids which use renewable energy from wind and solar as a component of their output.
The systems will be in place several sites in France and Germany by 2020.
They will use both 'second life' batteries from older EVs and new batteries stored while waiting for use in new electric vehicles.
