RWE has commissioned an energy storage system in Herdecke, North Rhine-Westphalia, which runs on used lithium-ion batteries from Audi electric cars. With this project, the energy company wants to gain knowledge in order to implement even larger storage systems in the future.
With the help of 60 battery systems, the new type of storage facility will be able to temporarily store around 4.5 megawatt-hours of electricity on the site of the RWE pumped storage power plant at Lake Hengstey. According to the RWE announcement, the electric car batteries come from development vehicles for the e-tron quattro. Audi itself also employs such used batteries in the charging hub in Nuremberg.
The battery systems still have a residual capacity of more than 80 per cent. RWE states that, depending on the intended use,…
RWE commissions second life energy storage system in Germany
