Electrolyser Stack Oversupply

A new World Bank Group report finds that an oversupply of electrolyser stack manufacturing capacity is masking persistent balance-of-plant supply chain bottlenecks.

The Report

According to the World Bank Group report, electrolyser stack manufacturing capacity is currently oversupplied across the sector.

The Role of Electrolysers

Electrolysers use electricity to split water into hydrogen and oxygen, and are the core of green hydrogen production when the power comes from renewable sources. The stack is the device where the electrochemical reaction occurs, but a complete plant depends on far more than the stack itself.

Balance-of-Plant Constraints

Even with this overcapacity, the report says supply chain bottlenecks remain in the balance-of-plant components that surround the stack, including power conversion, water treatment, compression, and gas treatment systems. These ancillary units are essential in any complete installation, and their availability and cost can determine whether a project can actually be built rather than merely ordered on paper.

Hydrogen Supply Chain

The findings frame these bottlenecks within the broader challenge of scaling the full equipment set needed for hydrogen production, rather than any single component.

Green Hydrogen Production Beyond the Stack

The report’s core lesson — that a stack alone does not make a plant — anchors Klean’s approach to green hydrogen production. Rather than depend on electrolyser stacks, Klean produces hydrogen from waste through gasification and methane pyrolysis, treating balance-of-plant integration as part of the design from the outset.

Learn More:

• Klean’s waste-to-energy capabilities
• Hydrogen fuel-cell scrap-tire logistics
• Plant design and engineering

Green Hydrogen Without the Electrolyser Hang-Up

Klean produces green hydrogen from waste via gasification and methane pyrolysis, sidestepping stack bottlenecks through full-system design.

Want to learn more about green hydrogen production?

With Klean and KBR, projects run on an open-book basis with clear accountability and performance guarantees.

Contact Klean Industries about green hydrogen production » GO.