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'Our plasma electrolysers will cut the cost of green hydrogen by a factor of three’

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'Our plasma electrolysers will cut the cost of green hydrogen by a factor of three’ Empty 'Our plasma electrolysers will cut the cost of green hydrogen by a factor of three’

Post by Chromium6 Wed Jul 07, 2021 2:14 am

Our plasma electrolysers will cut the cost of green hydrogen by a factor of three

Start-up Hydrogen Systems Australia says its new technology 'could change the way the world creates H2'


30 June 2021 9:44 GMT UPDATED  30 June 2021 9:44 GMT
By Leigh Collins

An Australian start-up says it has invented a new super-efficient type of electrolyser that uses plasma, the fourth state of matter, to reduce the cost of green hydrogen by a factor of three.

Melbourne-based Hydrogen Systems Australia (HSA) says that today’s PEM (proton exchange membrane) electrolysers produce hydrogen at a levelised cost of about $5-7 per kilogram, while its new plasma electrolysers would produce H2 for $2/kg by 2024 (based on a power price of $35/MWh when operating for 12 hours a day) — and could go even lower after that.


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Part of the cost savings will be due to the plasma electrolyser itself costing 90% less than PEM machines at current prices, with the rest coming from improved efficiency.

Understandably, HSA is keeping the details of its technology close to its chest, but executive director Brian Power tells Recharge that it works by using electrical power inside a plasma chamber at certain frequencies that elicit favourable responses from the hydrogen and oxygen atoms in water — a process that he says requires much less power than standard PEM or alkaline electrolysers.

“We’re letting the frequencies do all the work, whereas [a standard electrolyser] lets the electricity do all the work,” he says.

HSA has patented the technology and is currently fine-tuning the technology in the lab, with a view to completing testing by Christmas and starting limited production of small-scale electrolysers by 2024.


Brian Power, executive director of Hydrogen Systems Australia. Photo: HSA

The company has no intentions of building the kind of gigawatt-scale electrolyser factories that market leaders Nel and ITM Power are currently constructing. Instead, it wants to license its technology to existing electrolyser maker, who can then build multi-megawatt versions of the machines in their gigafactories.

HSA will meanwhile produce a small amount of 150kW electrolysers — far smaller than the 5MW machines currently on the market — that can be used to create off-grid baseload renewable energy systems.

“Our needs out here [in Australia], we think, will be more small-scale systems where you’ve got a solar array and a battery and a fuel cell on a [holiday] resort or running a small [remote] village and making the power where you consume it,” says Power.

“We’ve got two objectives,” adds Scott Podmore, HSA’s head of content. “One is small to medium scale… but the other is the licensing of this new technology, which could pretty well change the way the world creates hydrogen. It's a game changer. It's a serious game changer.”

more at link:
https://www.rechargenews.com/energy-transition/-our-plasma-electrolysers-will-cut-the-cost-of-green-hydrogen-by-a-factor-of-three-/2-1-1032895

Chromium6

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Join date : 2019-11-29

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