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Hydraeon Alkaline Water Electrolyser

From fossil fuels to future fuels, switch to green hydrogen with INEOS

Hydraeon 25MW Cropped.png

Powering your path to Net Zero

Backed by decades of industrial expertise and project delivery in chlor-alkali electrolysis, INEOS is driving the hydrogen economy forward with Hydraeon technology, a safe, reliable and proven solution for large-scale green hydrogen production, engineered for power efficiency, scale-up, and sustainability.

If you have a hydrogen electrolysis project, INEOS would like to hear from you, simply Contact Us.

Features & Benefits

High efficiency

  • Ultra-low and class-leading energy consumption
  • Proprietary, market leading electrode coatings
  • Excellent gas qualities

Inherently safer low-pressure design

  • Low-pressure safety case proven over decades of cellroom operation
  • Reduced gas crossover, minimising flammability risk

Competitive CAPEX & OPEX

  • Simple and cost-effective to operate and maintain, refurbish rather than replace elements after 8 years
  • Low-pressure design reduces maintenance costs 

Flexible & Scalable

  • Modular system designed to meet all project requirements
    Turndown to 10%
  • Dynamic load following capability

Evolution of proven INEOS BICHLOR electrolyser

  • Decades of experience in electrolyser design, manufacture & operation
  • Single element electrolyser based on successful BICHLOR platform
    Installed globally

INEOS - a stong and bankable project partner

  • Stable and industry leading chemical plant operator
  • Europe’s largest operator of electrolysis plants
  • Existing supply chain and engineering resources
  • INEOS assured engineering and safety standards
  • Track record of delivering industrial scale projects
  • Proudly designed, engineered and manufactured in the U.K.

Technical Specification

Hydraeon 25MW Unit

System capacity H2

5,700 Nm3/hr

Current density

10kA/m2

Standard operating range 10% to 100%
H2 gas quality (ex-electrolyser, dry basis) >99.9% purity
<0.1%v/v O2 in H2

Cell area, m2

3.48m2

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Project Delivery Scope & Options

INEOS combine deep engineering expertise with real-world operational insight, gained from designing, building, and running our own large-scale industrial chemical plants across the globe.

Engineering Options

  • Extensive engineering capabilities through our experienced, in-house multidisciplinary team for end-to-end project life-cycle support
  • FEL studies, detailed design, dynamic modelling, construction supervision, and pre-commissioning through to commissioning

Scope of Supply Options

  • Electrolyser and Balance of Plant
  • Compression (Optional)
  • Ancillary Systems (Optional)