China's factories now set the pace for electrolyzer supply and price

China holds nearly 70% of electrolyzer manufacturing capacity, and its stacks cost about 60% less, but the cost lever is smaller than it sounds.

Electrolyzers, the machines that split water into hydrogen and oxygen using electricity, were invented in the West. Dutch scientists first did it nearly 250 years ago, and European and American researchers later refined and commercialized the technology. Today China accounts for nearly 70% of global manufacturing capacity, according to a Heatmap report by Katie Brigham.

Chinese factories are now making more equipment than China's own hydrogen market can absorb, so exports are rising. Chinese stacks, the core component, cost about 60% less than Western alternatives. Western makers mostly specialize in proton exchange membrane (PEM) systems, which cost more than China's typical alkaline units but pair better with intermittent renewable power. Western governments are answering with tariffs, domestic-content bonuses and limits on subsidy eligibility. China's latest Five-Year Plan repeatedly calls for developing green hydrogen, hydrogen-derived fuels and electrolyzers.

For energy abundance, scale manufacturing is how equipment gets cheaper, and cheaper equipment helps make green hydrogen viable for fertilizer, chemicals, refining, steel and transport, the sectors Chinese policy is pushing. DNV calculates clean hydrogen would need to supply about 15% of global energy demand by 2050 to meet Paris targets.

The caveats are significant. The stack is only about 6% to 9% of the levelised cost of clean hydrogen. Most of the cost lies in electrical and process equipment, labor and above all clean electricity. Some cheaper Chinese designs trade away efficiency, lifecycle and warranty coverage. DNV's Thomas Koller says China is competitive on stacks and is working on integrating them into whole systems. The article says it is not obvious electrolyzers will follow the solar path, and the stack savings may not sway foreign buyers. Much of the outlook rests on analyst opinion, and the source text we had was cut off partway, so the full reporting sits with Heatmap.

Source: Heatmap