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Renault & Connected Energy Partnering For Second-Life EV Battery Energy Storage

Connected Energy and Renault are partnering together for the creation of second-life electric vehicle battery energy storage technologies, the first of which, the E-STOR technology, will be available for purchase in the UK starting in July, according to recent reports.

This first offering is a 50 kilowatt/50 kilowatt-hour (kW/kWh) product created out of old Renault electric vehicle (EV) batteries. Given the size of the battery, a number of applications are possible — including the support of EV fast charging stations in locations without direct access to high electricity supply rates.


Considering that EV batteries still possess a lot of energy storage capacity even after ending their working first-life in an EV, the partnership makes a lot of sense — why not reuse the batteries as much as possible before recycling?

Green Car Congress provides more information on the technology:

With increasing EV sales — 97,687 EVs were sold in Europe in 2015, up 48% on 2014 — so is the requirement in energy to charge them. Connected Energy is addressing both issues through use of second-life EV batteries in its E-STOR technology.

This can be used, for example, to store energy generated from on-site renewable generation resources such as solar panels and wind turbines, and then release it as needed at a later time. The system also allows the batteries to be charged via low-cost off-peak electricity tariffs, enabling users to reduce their energy costs.

The Connected Energy E-STOR EV second-life energy storage technology was named as the winner of the innovation category in the British Renewable Energy Awards 2015, last June.

Written By

James Ayre's background is predominantly in geopolitics and history, but he has an obsessive interest in pretty much everything. After an early life spent in the Imperial Free City of Dortmund, James followed the river Ruhr to Cofbuokheim, where he attended the University of Astnide. And where he also briefly considered entering the coal mining business. He currently writes for a living, on a broad variety of subjects, ranging from science, to politics, to military history, to renewable energy. You can follow his work on Google+.


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