Grid Scale, Storage

Trial Begins for German Storage Facility Built with Used EV Batteries

Hamburg Senator for Trade, Transport and Innovation Frank Horch last week initiated trial operations of an energy storage facility that was built with 2,600 used battery modules from more than 100 electric vehicles.

Energy storage solutions provider Bosch said that it worked with Vattenfall and BMW to complete the Battery 2nd Life project in Hamburg. The project has a power rating of 2 MW and a storage capacity of 2,800 kWh.

“Thanks to smart electronic controllers, these storage systems can absorb excess electricity and release it again very quickly when needed,” Cordelia Thielitz, general manager of Bosch Energy Storage Solutions, said in a Sept. 22 statement. “That way they help to stabilize the electricity grid. We expect to gain valuable knowledge from the Battery 2nd Life development project, and we regard it is as an important step on the way to a more efficient and more decentralized energy system.”

Bosch said that power from the project will be sold on the primary control reserve market by Vattenfall, along with power from other flexibly controllable facilities. The storage facility delivers primary control reserve power necessary to keep the 50 Hz grid frequency stable, according to Bosch. The batteries for the project came from BMW electric vehicles.

Pieter Wasmuth, Vattenfall’s executive manager for Hamburg and Northern Germany, said in a statement: “Our stated goal is to integrate this battery storage facility into the energy system and to give a large number of similar small local facilities access to the market through electricity trading.”

Bloomberg New Energy Finance estimates that about 95 GWh of lithium-ion batteries are expected to come out of cars by 2025, and about 26 GWh of them will be converted to stationary systems.

Lead image credit: Bosch.