Battery Storage Developer Delivers Efficiency and Flexibility from 2nd Life EV Batteries

December 11, 2017 | Industry News | Connected Energy, a UK-based company in site-integrated energy storage solutions, has successfully proven a new technique that enables multiple 2nd life electric vehicle (EV) batteries to be operated in series. The company says its latest innovation delivers greater flexibility from its E-STOR storage technology, making the system even more affordable and accessible to a wider range industrial and commercial energy users.

This innovative approach raises the net resultant voltage to a level where up to 50 percent more power can be drawn from the existing DC/AC inverter. Crucially, it also doubles the energy available.

For end users, the benefits are two-fold. Firstly, this offers a further cost reduction in $/kW. This is coupled with an increase in the versatility of EV battery packs when used in static storage applications.

Connected Energy’s CEO Matthew Lumsden said, “This an exciting and logical next stage in the development of our E-STOR battery storage technology. At a technical level, we have achieved our objectives by creating algorithms and strategies that enable us to control each battery separately via its ‘OEM’ Battery Management System when battery packs are connected in series. This facilitates the safe, effective and efficient control of second life EV battery packs when operated in a series string.”