Part of the Hamburg Green Hydrogen Hub (HGHH), the Siemens Energy electrolyser is expected to produce around 10,000 tonnes once operational. Hoerbiger’s HCP 500 units will compress the produced hydrogen for refuelling.

The Austrian industrial engineering firm said its products can handle high hydrogen flow rates of over 250kg/hour, making them suitable for large-scale plants.

Kraftanlagen Energies & Services, which is responsible for the electrolyser planning, delivery, and construction, chose Hoerbiger for its compressor technologies.

“With a high degree of standardisation, the HCP 500 is optimised for the lowest cost of total ownership (TCO),” the firm’s statement said.

The 105MW plant is scheduled to be built by 2027, at the site of a former coal power plant in Moorburg.

The facility is being partially dismantled to make room for the production plant and the connection to the HH-WIN hydrogen distribution network.

The connection to the extra-high voltage grid will continue to supply the electrolyser with renewables after it is converted and relocated.

H2 View understands that Siemens Energy was due to deliver its electrolyser model to Germany this year, after it was manufactured at its Berlin gigafactory. The German OEM delivered nine PEM electrolysers to Air Liquide from the facility last month.

Once operational, green hydrogen production in Hamburg is set to gradually ramp up.

When distribution customers are identified, green hydrogen will be supplied via the HH-WIN distribution network and a planned truck loading station.