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Alkaline Electrolysers

Alkaline Water Electrolyser - Hydraeon 25MW Unit

INEOS Technologies Ltd

  • Ultra-low and class-leading energy consumption
  • Proprietary, market-leading electrode coatings
  • Reduced gas crossover, minimising flammability risk
  • Simple and cost-effective to operate and maintain
  • Modular system designed to meet all project requirements
  • Single element electrolyser based on successful BICHLOR platform

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Description Vendor

The Hydraeon Alkaline Water Electrolyser is a safe, reliable and proven solution for large-scale green hydrogen production, engineered for power efficiency, scale-up and sustainability. The datasheet describes the Hydraeon 25MW Unit with 5,700 Nm³/hr H₂ system capacity, 10 kA/m² current density, 10% to 100% standard operating range, and H₂ gas quality of >99.9% purity with <0.1% v/v O₂ in H₂ on an ex-electrolyser dry basis.

Use Cases

  • Large-scale green hydrogen production

Capabilities

  • Produces hydrogen at 5,700 Nm³/hr system capacity
  • Operates across a 10% to 100% standard operating range
  • Supports dynamic load following capability
  • Produces H₂ gas quality of >99.9% purity
  • Uses a modular system design for project requirements
INEOS Technologies Ltd INEOS, through its INOVYN business, is Europe's largest existing operator of industrial electrolysis (the critical technology necessary to produce green hydrogen), currently producing around 400,000 tonnes of hydrogen annually with new electrolysis projects underway across Norway, Germany, and Belgium, and future plants planned in the UK and France. The company's Hydraeon alkaline water electrolysis (AWE) technology -- a multi-award-winning, modular 25MW system built on 125 years of chlor-alkali expertise -- delivers industrial-scale, ultra-low power consumption green hydrogen production for hard-to-abate sectors including steel, glass, and cement, engineered for power efficiency, scale-up, and sustainability without compromising operational performance. INEOS announced an investment of more than EUR 2 billion into European electrolysis projects to produce zero-carbon green hydrogen, representing Europe's largest-ever investment in electrolysis for this purpose, with the first 20MW electrolyzer to be built in Norway powered by zero-carbon electricity, leveraging INEOS Inovyn's existing experience in hydrogen storage and handling. As both a major user and producer of hydrogen with extensive experience in the chlor-alkali process (generating low-carbon hydrogen as a co-product with a footprint of approximately 0.55 kg CO2-equivalent per kg H2 using grid electricity), INEOS continues positioning itself at the heart of Europe's hydrogen transformation, supporting emerging demand for affordable, low-carbon energy across power generation, transportation, and industrial applications.
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