Flower builds largest big-city battery storage project in Hamburg

Swedish company Flower has broken ground on a battery storage project in Hamburg-Bergedorf: 100 MW / 400 MWh, the largest project of its kind in a major German city and Flower's largest self-developed project to date. Engie has signed a flexibility purchase agreement to commercialize the asset after completion (end of 2028). (Source: pv-magazine.de, 10 Sep 2026)