Hychor Ltd - Hydrogen Seawater Electrolysis Technology (HySET)

The Resource Problem in Green Hydrogen Production

By 2050, green hydrogen may account for up to 35% of the UK’s energy system. However, producing hydrogen through electrolysis is freshwater-intensive, withdrawing up to 32.2 litres of freshwater per kilogram of hydrogen. At scale, this presents a major bottleneck where taking from potable resources is unsustainable and relying on weather-dependent on-shore sources is a liability. Seawater is a limitless alternative, but current methods require energy-intensive desalination, which drives up costs. Additionally, green hydrogen is also reliant on renewable energy input which fluctuates, contributing further costs and inconsistency, unsuitable for large-scale energy production.

Hychor’s solution - HySET: a novel systematic approach to produce the cheapest green hydrogen

Hychor’s technology eliminates the need for desalination, reducing both capital and operational costs and has in-built battery storage capabilities. Unlike other seawater electrolysis technologies, our electrolysers do not produce by-products or modify the seawater with additives meaning we can return it to the sea with minimum environmental impact. Our battery storage allows us to absorb fluctuating renewable energy input and store electricity to power electrolysis when input is low, leveling out hydrogen production 24/7. 

Best of all, this is a systematic approach, not a material one, meaning we use pre-exisiting electrolyser components for a unique outcome. 

By decoupling high-pressure/purity hydrogen production with battery storage and chlorine-free oxygen production, we have the goal to operate at the pressures of PEM with the performance of Alkaline at competitive energy efficiencies, maximising energy savings for the cheapest green hydrogen on the market.