The Johan Cruijff Arena in Amsterdam, home to the soccer team AFC Ajax, now hosts Europe's largest energy storage system. Comprising 250 used Nissan Leaf battery packs and 340 first-life battery modules, the system can provide up to one hour of full power to the stadium during an event.
How it works: Second-life batteries are batteries removed after a first life in electric vehicles. While no longer able to supply the power needed for transportation, these batteries still have adequate capacity for other energy storage solutions. Recycling these batteries remains economically unfavorable because of falling prices and low metal recovery, but they continue to find their way into new applications such as home-power and mobile-charging units.