The Anonymous Widower

Hysata – Electrolyser Breaks Efficiency Records, Enabling World-Beating Green Hydrogen Cost

The title of this post, is the same as that of this article on Hydrogen Central.

These three paragraphs explain what Hysata have achieved.

Hysata – electrolyser breaks efficiency records, enabling world-beating green hydrogen cost.

Hysata’s world-leading hydrogen electrolyser technology has been recognised on the global stage with ground-breaking research published in top tier peer-reviewed scientific journal Nature Communications.

The research confirms Hysata’s ‘capillary-fed electrolysis cell’ can produce green hydrogen from water at 98% cell energy efficiency, well above International Renewable Energy Agency’s (IRENA) 2050 target and significantly better than existing electrolyser technologies, enabling a hydrogen production cost well below A$2/kg (US$1.50/kg).


  1. Hysata are an Australian company.
  2. The research and its results have have met the gold standard of pier review in a respected journal.

Their efficiency levels would appear to be breathtaking.

I have some more information and a couple of thoughts.

The Technology

This article on New Atlas is entitled Record-Breaking Hydrogen Electrolyzer Claims 95% Efficiency, gives a full overview of the technology.

It does appear that Hysata have shown tremendous attention to detail to raise the efficiency.

The Efficiency

In Can The UK Have A Capacity To Create Five GW Of Green Hydrogen?, I said the following.

Ryze Hydrogen are building the Herne Bay electrolyser.

  • It will consume 23 MW of solar and wind power.
  • It will produce ten tonnes of hydrogen per day.

The electrolyser will consume 552 MWh to produce ten tonnes of hydrogen, so creating one tonne of hydrogen needs 55.2 MWh of electricity.

55.2 MWh/tonne is 55.2 kWh/kg.

Hysata are claiming on their web site, that their electrolysers have 95% efficiency, which is 41.5 kWh/kg.

  • A megawatt of electricity at Herne Bay will produce 18.1 Kg of hydrogen.
  • A megawatt of electricity in a Hysata electrolyser will produce 24.1 Kg of hydrogen.

That is 33 % more.


March 28, 2022 - Posted by | Hydrogen | , ,


  1. Sounds good but maybe early days but what I see is all these good ideas just need resources being thrown at them to prove them viable or not as quickly as possible. Need to see the climate crisis like a war and just cover as many bases as possible as something will come good in the end.

    Comment by Nicholas Lewis | March 28, 2022 | Reply

    • ITM Power could be a loser here. But on the other hand, they have some powerful friends like Linde and I suspect that with a bit of research they could increase their own efficiency.

      ITMPower’s big strength could be automated manufacturing.

      Comment by AnonW | March 28, 2022 | Reply

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