Electrolyzer manufacturers are in agreement on the goal of rapidly reducing investment costs, mainly through economies of scale. Some are embracing large units, while others are betting on quantity over size. The first approach is attractive for operators of large PV plants, while the latter is better suited to operators of small systems.
Germany’s largest oil refinery – located in Wesseling, close to the city of Cologne – uses 180,000 tons of hydrogen per year. Shell says it plans to install the world’s largest proton exchange membrane system for hydrogen production at the site.
Image: Shell Rheinland
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