ICT GreenHydro Tech

As the demand for climate-neutral energy rises, the production of green hydrogen is playing a crucial role in the energy transition. This process relies on water and renewable electricity (e.g., wind or solar) to split water into hydrogen and oxygen, creating a sustainable energy carrier. However, conventional hydrogen production methods—while utilising renewable electricity—often face inefficiencies, high costs, and environmental impacts, undermining the true potential of green hydrogen. These challenges hinder widespread adoption and make large-scale implementation economically unviable.

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At ICT, we are addressing these issues with our innovative acid electrolysis technology. Our modular, plug-and-play design allows for flexible, scalable systems that can be adapted to both small and large-scale operations. By using cost-effective, readily available materials, we significantly reduce production costs while enhancing efficiency. This makes clean hydrogen more accessible and supports the global shift toward a sustainable, decarbonised energy future.

Comparison of hydrogen technologies

Criterion	Alkaline Electrolysis (AEL)	PEM Electrolysis	ICT GreenHydro Tech
Efficiency	60-70%	70-80%	> 90%
Startup Time	50 - 80 min.	25 - 35 min.	0 min. - ready for immediate use
Operating Temperature & Pressure	T ~ > 80° C P^~ 30 - 50 bar	T^~ 60 - 90° C P^~ < 10 bar	No increased temperature under normal conditions, no pressure
Physics	Cathode = negatively charged Electrolyte: KOH = K++OH- therefore high pressure and high temperature required pH = 14	Membrane system Electrolyte - H2O Complex design, with costly and complicated membrane replacement	Cathode = negative - Electrolyte: H2SO4 = H+ + HSO4- pH = 0
Electrode Material	Ni - based electrode doped with precious metal	Expensive (Platinum, Iridium)	Normal V4A steel
Membrane	Membrane blockage due to CO2 forming K2CO3, requiring costly and time-consuming replacement	Utilises complex and expensive membranes	Without membrane blockages: uninterrupted and fast operation
Input & Output	Input: 42 kW Output: 16.1 kW	Input: 42 kW Output: 22.1 kW	Input: 42 kW Output: 39.3 kW
H2 Purification	H2 purification from moisture and particles achieves ~60% yield after cleaning and drying, based on energy input.	70 - 80 %	~ 99.2 % no cleaning or drying
Investment Costs	Low to Medium	High	Very low
System Lifetime	High	Medium	Very high
Flexibility with Load Changes	Slow	Flexible	Very flexible
Application Areas	Large industrial applications	Flexible applications (small to medium)	Very flexible, (small, medium and large-scale applications)
Scalability	Good (for large plants)	Good (for medium to large plants)	Very good (for any plant size)
Cost per Kilogram of Hydrogen	Medium	High	Low
Sustainability	Low to medium, uses abundant materials but needs frequent replacements due to wear and degradation	Medium, offers higher efficiency but depends on expensive precious metals, impacting resource sustainability	High with minimal material use and energy consumption
Maintenance Effort	Medium	High (frequent membrane/electrode replacements)	Low
System Technology	Stationary	Mobile	Mobile + Plug and Play System
Hardware	Stainless steel - very heavy	Metal - heavy	Plastic - extremely light

STRATEGIES TO OVERCOME ELECTROLYSIS CHALLENGES

Improved Design and Construction

Enhance electrolyser design to boost process efficiency and lower costs.

Operational Efficiency and Flexibility

Our LEGO-like, stackable design allows for easy, flexible operation, optimising performance and adaptability.

Economies of Scale

Our modular system allows for scalability, catering to any production size while reducing per-unit costs.

Environmental Alignment

Our technology is clean and safe, aligning with climate goals and promoting sustainability.

Material Substitution

We utilise readily available and cost-effective materials for our separator (membrane) and catalyst, minimising reliance on scarce resources.

Addressing Degradation

We use durable materials that enhance the lifespan of electrolysers, ensuring sustainability and cost-effectiveness.

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