How a US electrolyzer redefines hydrogen efficiency. A reengineered alkaline platform adapts chlor-alkali chemistry to deliver efficiency gains beyond conventional stacks.

September 18, 2025

From Interesting Engineering

The article highlights how Verdagy’s Dynamic AWE electrolyzer is pushing clean hydrogen efficiency beyond DOE targets. The piece explains how Verdagy has reengineered proven chlor-alkali chemistry into a modern hydrogen platform, delivering lower electrical losses and wider operating flexibility. The article spotlights single-cell stack design and modular approach, which both improve uptime and reduce costs. It notes that these efficiency gains can save roughly $0.50 per kilogram of hydrogen at scale, translating into millions annually for large facilities. Read more here How a US electrolyzer redefines hydrogen efficiency

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“ Yara is taking the lead on driving the use of electrolyzers in the ammonia and fertilizer industry. We see a strong need for cost competitive, clean hydrogen to be able to decarbonize and drive the movement towards a more environmentally friendly industry. Electrolysers is a technology requiring a lot of innovation and product development. We are really impressed by how Verdagy is taking on this challenge and want to take part in this adventure. The world needs them.”

Stian Nygaard

Investment Director in Yara Growth Ventures

“ Verdagy is rising to the challenge to accelerate the clean hydrogen economy and decarbonize hard-to-abate sectors such as steel and ammonia production. The management team has a successful track record in scaling climate technologies from megawatts to gigawatts and they are committed to achieving the same at Verdagy.”

Vikas Gupta

Partner at Shell Ventures

“ We are focused on building an entire renewable hydrogen ecosystem in California to achieve our climate goals - including the crucial step of manufacturing electrolyzers. Verdagy’s decision to expand their footprint here reflects California’s unique strength in creating new markets, enabling the creation of clean energy jobs while solving our most existential challenges with the technology of the future.”

Dee Dee Myers

Senior Advisor to Governor Newsom and Director of the Governor’s Office of Business and Economic Development

“ Verdagy’s potential to demonstrate high-current density over a wide dynamic range across large-area cells led us to incubate and write the first check into the company in early 2020. Since then, the team has made significant progress in validating key performance and cost targets, getting them closer to building out a clean hydrogen economy.”

Rajesh Swaminathan

Partner, Khosla Ventures