Project partners Luxcara GmbH and Hamburger Energiewerke announced on Monday that construction has begun on a 100-MW electrolyser at the former Moorburg coal-fired power plant in Hamburg, Germany, reports Renewables Now.
The Hamburg Green Hydrogen Hub (HGHH) is slated to start operations in the second half of 2027. Once commissioned, it is expected to play a key role in decarbonising the local port and industrial sectors. The plant will produce 10,000 tonnes of green hydrogen each year, which will be supplied through the Hamburg Hydrogen Industry Network (HH-WIN) and a planned trailer loading station.
The project received funding approval from federal and state governments last summer. Since then, major construction contracts have been finalised. Siemens Energy will provide the electrolyser under a contract awarded in September 2024, while Kraftanlagen Energies & Services signed an agreement in October 2025 to build the project’s infrastructure.
HGHH was initially launched by a consortium comprising Hamburger Energiewerke, Shell, Mitsubishi and Vattenfall. Shell and Mitsubishi later exited, followed by Vattenfall. Luxcara, which joined the venture in 2023, now holds 74.9% of the project, with Hamburger Energiewerke owning the remaining 25.1% stake.
