The Swedish energy tech company Flower has transferred a 100 MW / 400 MWh battery energy storage system (BESS) project in Bergedorf to construction-ready status and, together with local stakeholders, secured the necessary grid connections and permits. Battery energy storage systems (BESS) License: CC0 1. 0) Public. December 03, 2025 [Renewables Now]- Project partners Luxcara GmbH and Hamburger Energiewerke revealed on Monday the start of the construction works on a 100-MW electrolyser at the site of the former Moorburg coal-fired power plant in Hamburg, Germany. The so-called Hamburg Green Hydrogen Hub (HGHH) project is expected to become.