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Alkaline Electrolysers

Large-Scale Alkaline Water Electrolyzer - Asahi Kasei

Asahi Kasei Europe GmbH

  • Large-scale alkaline water electrolysis technology
  • 10 MW base-unit modular architecture
  • Multiple base units can be combined for larger hydrogen-production systems
  • Designed for green hydrogen production using renewable electricity
  • Supported by Asahi Kasei membrane, electrode and monitoring technologies
  • Industrial-scale operating reference at the Fukushima Hydrogen Energy Research Field

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Description Vendor

Large-Scale Alkaline Water Electrolyzer is Asahi Kasei's large-scale alkaline water electrolysis system for producing green hydrogen from renewable electricity. The system is designed around a 10 MW base-unit concept, with multiple units combined to build larger hydrogen-production installations according to project requirements. Asahi Kasei applies decades of chlor-alkali electrolysis experience to the system and supports the electrolyzer with membranes, electrodes, monitoring technology and operational expertise. A 10 MW-class Aqualyzer system has been operated at the Fukushima Hydrogen Energy Research Field, demonstrating large-scale renewable hydrogen production.

Use Cases

  • Large-scale green hydrogen production
  • Industrial hydrogen production
  • Power-to-Gas projects
  • Renewable-energy integration
  • Hydrogen supply for industrial, transport and energy applications

Capabilities

  • Produces hydrogen by alkaline water electrolysis
  • Supports modular scale-up beyond a single 10 MW base unit
  • Integrates with renewable-electricity-based hydrogen projects
  • Supports large-scale electrolysis monitoring and operational optimization
Asahi Kasei Europe GmbH Asahi Kasei is a Japanese diversified manufacturer and a comprehensive, one-stop supplier of alkaline water electrolyzers for green hydrogen production, leveraging over a century of ion-exchange membrane chlor-alkali electrolysis expertise (supplied to ~160 plants worldwide). Its Aqualyzer product line, built around modular 10 MW base units, provides electrolyzers, membranes, electrodes, and monitoring systems for large-scale green hydrogen plants, and the company has partnered with De Nora on small-scale containerized electrolyzers. Asahi Kasei is investing in new manufacturing facilities in Kawasaki, Japan targeting at least 2 GW annual capacity each for electrolysis cell frames and membranes by 2028, backed by Japanese government GX Supply Chain funding. The company aims for a 20% share of the global water electrolysis equipment market as part of its strategic portfolio transformation.
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