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Company creates electrolyzer capable of making green hydrogen production more accessible

15 May 2024 to 17: 34
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Company creates electrolyzer capable of making green hydrogen production more accessible
Photo: DALl-e

Company develops revolutionary new technology for the production of green hydrogen: an electrolyzer with 95% efficiency.

The production of green hydrogen consumes, on average, around 52,5 kWh of energy to generate one kilogram of the gas, which stores 39,4 kWh of energy. This process results in an energy loss of 20% to 30%. However, the new capillary-powered electrolyser, developed by the Australian company Hysata, could be an innovative solution to popularize green hydrogen.

New electrolyzer promises to reduce the cost of green hydrogen production

The Australian company hysata developed an electrolyser that can achieve an efficiency of up to 95% reducing the energy required to produce one kg of green hydrogen from 52,5 kWh to 41,5 kWh. This represents a major step towards reducing operational and capital costs for green hydrogen production.

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Credits: Hysata

The company's patented technology, developed in partnership with the University of Wollongong, aims to eliminate gas bubbles that form on the electrodes during electrolysis, expanding the electrolyte contact area and reducing internal resistance, thanks to the design that allows the upward flow of the electrolyte through a porous, hydrophilic separator.

Hysata's technical progress attracted a lot of interest from researchers, resulting in the raising of US$111 million to expand production and continue the development of the tech, aiming for gigawatt-scale production.

Despite advances, the electrolyzer market is facing challenges, such as production capacity exceeding demand, which has caused losses for several manufacturers, with only one company reporting a profit in 2023, according to a study by BloombergNEF.

The device can achieve 95% efficiency, using just 41,5 kWh to produce one kg of fuel. This increased efficiency in green hydrogen production can significantly reduce operating and capital costs for producers, making green hydrogen more affordable.

New technology achieves efficiency of up to 98% in the laboratory

The effectiveness of this method is remarkable. The company has reported efficiency of up to 98% under laboratory conditions, according to peer-reviewed studies published in Nature Communications magazine. This efficiency is maintained at approximately 95% under real operating conditions, which represents a significant advance in the production of green hydrogen.

Recently, Hysata announced, in a statement, the raising of US$111 million (R$555 million) in a round of financing. 

The resources will be used to expand production capacity at the Wollongong facility, in Australia, and for the continued development of technology, with a view to gigawatt-scale manufacturing.

Hydrogen is seen as a clean fuel promising and a means of energy storage for a zero-carbon economy. Compared to batteries, hydrogen carries more energy per weight and offers a solution for decarbonizing challenging sectors such as aviation and heavy transport.

Brazil presents advances in the green hydrogen market

The current global scenario of warning about climate change has reinforced the need for an extensive and urgent process of decarbonization and energy transition, a context in which green hydrogen, produced through the electrolysis of water using renewable sources, has stood out as a promising industry which generates alternative, clean and highly efficient energy.

In Brazil, there is interest in this industry in several regions. However, among the most interested is the Northeast, both for its high installed and potential capacity for solar and wind energy generation and for its ports strategically located in relation to foreign markets.

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