Bosch begins Hybrion PEM electrolysis operations in Bamberg
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Bosch has started operating its first electrolyzer equipped with in-house Hybrion proton exchange membrane (PEM) electrolysis stacks at its Bamberg facility, marking a further step in its hydrogen strategy. The installation converts renewable electricity into hydrogen at an industrial scale and forms part of a broader on-site “hydrogen landscape” that links production, storage, and fuel-cell testing.
For eeNews Europe readers, this milestone is relevant because Bosch is expanding hydrogen system manufacturing in Germany, and the Bamberg setup offers insight into how European OEMs and industrial players may integrate electrolysis and fuel-cell platforms in future programmes.
Electrolyzer deployment and system details
The Bamberg electrolyzer integrates two Bosch Hybrion PEM stacks, each rated at 1.25 MW and manufactured locally. At full load, the 2.5 MW system produces more than one metric ton of hydrogen per day, which Bosch notes is enough to keep a 40-ton truck fitted with its fuel-cell power module (FCPM) running for up to 14,000 kilometres.
A fuel-cell power module operates in a dedicated “lifetime container,” using hydrogen from the electrolyzer to evaluate durability under continuous operation. The electrical energy generated by the module flows back into the electrolyzer for ongoing validation, creating a closed-loop setup that supports long-duration testing. Large-scale production of the FCPM began in Stuttgart-Feuerbach in 2023.
Dr. Markus Heyn, member of the Bosch board of management and chairman of the Mobility business sector, said: “The official start of operations for our electrolyzer and the opening of the hydrogen landscape here in Bamberg mark an important milestone for us.”
Test infrastructure and early rollout
The site includes a second Hybrion PEM stack test station to qualify systems before delivery. Bosch simulates load cycles and electrical fluctuations, then activates each stack so it is immediately deployable in customer installations. A 21-metre hydrogen storage tank holds electrolytic hydrogen at up to 50 bar.
According to Bosch, shipments of Hybrion stacks have already begun to partners including IMI, Kyros Hydrogen Solutions, Neumann & Esser, and Pietro Fiorentini’s subsidiary Hyter.
For European engineers, Bamberg’s landscape offers a potentially useful reference for integrating PEM electrolysis with local storage and fuel-cell validation as hydrogen deployment accelerates across energy and mobility sectors.
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