How a US electrolyzer redefines hydrogen efficiency
A reengineered alkaline platform adapts chlor-alkali chemistry to deliver efficiency gains beyond conventional stacks.
Hydrogen has long been seen as a potential clean energy source. The challenge has been splitting water into hydrogen and oxygen through electrolysis, which requires large amounts of electricity. Even small efficiency improvements at scale can save millions of dollars and bring hydrogen closer to competing with fossil fuels.
California-based Verdagy, which develops large-scale water electrolysis systems, claims its proprietary “Dynamic AWE” has set a new efficiency standard across the operating range of electrolysis, surpassing the US Department of Energy (DOE) targets years ahead of schedule.
The company says its results are based on strict benchmarking and a unique system design that diverges from much of the industry.
In an interview with Interesting Engineering, Dr. Kevin Cole, Verdagy’s managing scientist, spoke about how the company validated its efficiency claims, how those gains translate into real-world economics, and what it means for the global race to produce green hydrogen at $2 per kilogram, the milestone that governments and investors alike see as the threshold for fossil parity.
Benchmarking the unbenchmarkable
Electrolyzer companies rarely publish comparative data. Pressure, temperature, and stack design all affect performance, leaving firms free to highlight selective metrics. Cole said Verdagy wanted to avoid that trap.
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How a US electrolyzer redefines hydrogen efficiency, source
