A joint energy transition project between RWE and Audi is breaking new ground. In Herdecke, North Rhine-Westphalia, RWE has put an energy storage system consisting of used lithium-ion batteries from Audi EVs into operation. Using 60 of these battery systems, this storage technology will be able to provide temporary storage for about 4.5 MWh of electricity at the site of the RWE pumped-storage power plant at the Hengsteysee reservoir.
“Powerful battery systems are essential for the energy transition,” states Roger Miesen, CEO of RWE Generation. “To offset short-term fluctuations in renewables and stabilize the grid, we need flexible storage technology solutions. Batteries are ideal for this purpose. In Herdecke, we are working with Audi to test ways to use decommissioned high-voltage batteries from EVs by connecting them…