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David Cebon @davidcebon.bsky.social · 09/02/2025

If you read Bossel's analysis, based on the immutable laws of thermodynamics, it is clear that providing the necessary fueling infrastructure for hydrogen-powered aircraft is a non-starter. Read it for yourself: www.csrf.ac.uk/blog/hydroge... No engineer would pursue this if they knew the facts.

csrf.ac.uk

Hydrogen-Powered Aircraft - The Centre For Sustainable Road Freight

In 2006, Ulf Bossel, founder of the European Fuel Cell Forum, published an excellent article about the hydrogen economy [1]. The paper contains simple fundamental analyses of the challenges of a hydro...

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David Cebon @davidcebon.bsky.social · 08/02/2025

How much money did the USA spend on defense against the USSR during the cold war and how much is it spending on mitigating climate change? Which threat was higher risk? Listen to Carl Sagan on this topic... youtu.be/4C6co5qXEE4?...

youtu.be

Carl Sagan on Military Spending and Climate Change

YouTube video by Lucky Tran

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David Cebon @davidcebon.bsky.social · 08/02/2025

In 2006, Ulf Bossel (founder of the European Fuel Cell Forum) calculated the massive amounts of energy, fuel, water, and CO2 that would have to be transported, to power the aircraft that use Frankfurt airport using hydrogen.. It simply can't work. Read extract here: www.csrf.ac.uk/blog/hydroge...

csrf.ac.uk

Hydrogen-Powered Aircraft - The Centre For Sustainable Road Freight

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David Cebon @davidcebon.bsky.social · 07/01/2025

lnkd.in/eK-MTCUW lnkd.in/eYwDNMsw lnkd.in/e9dWZghi www.sustainable-bus.com/news/danjout...

lnkd.in

This link will take you to a page that’s not on LinkedIn

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David Cebon @davidcebon.bsky.social · 07/01/2025

My point is that there have been 4 incidents of hydrogen leaks of accidents involving hydrogen vehicles in the last month. The resulting air pollution from vehicle incineration is non-trivial; not to mention the danger to the public and the global warming effect of leaked hydrogen...

lnkd.in

This link will take you to a page that’s not on LinkedIn

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Reposted by David Cebon

Hydrogen Science Coalition @h2coalition.bsky.social · 16/12/2024

The Hydrogen Science Coalition has joined Bluesky 🦋 We're a coalition of academics, scientists & engineers bringing an evidence-based view on #hydrogen's role in the #energy transition, free of vested interest. Follow us for regular updates and find out more on our website h2sciencecoalition.com

h2sciencecoalition.com

Hydrogen Science Coalition

A coalition of academics & engineers bringing an evidence-based view on hydrogen's role in the energy transition.

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David Cebon @davidcebon.bsky.social · 13/12/2024

This is the way to do decarbonisation! Many thanks to Julian Fletcher of GWR for a fascinating visit.

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David Cebon @davidcebon.bsky.social · 13/12/2024

The train is comfortable, warm (on a winter morning), and relatively quiet. It is currently in the last stages of a comprehensive testing programme that will lead to passenger operations early next year.

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David Cebon @davidcebon.bsky.social · 13/12/2024

The train 'opportunity charges' its batteries in a few minutes, each time it gets to the end of the line. Deployable shoes underneath the train automatically connect to conducting rails and fast charge the batteries at about 600kW.

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David Cebon @davidcebon.bsky.social · 13/12/2024

This is an excellent solution to electrification of many smaller UK train lines that would otherwise be too expensive to decarbonise.

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David Cebon @davidcebon.bsky.social · 13/12/2024

This morning I had the opportunity to see, and ride on the Great Western Railway (GWR) experimental battery electric train at West Ealing in London. www.google.com/amp/s/www.bb...

google.com

GWR rapid-charging battery train trials under way

The trains are converted from old Underground trains and will be rolled out in the Thames Valley.

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David Cebon @davidcebon.bsky.social · 24/11/2024

Thanks Abigail. I will add this to my list of about 30 failed hydrogen bus projects around the world!

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David Cebon @davidcebon.bsky.social · 20/11/2024

Boggles my mind... How can the German Government either be so gullible or have such poor due diligence! Good money after bad... I hope all is well with you. David

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David Cebon @davidcebon.bsky.social · 17/11/2024

...there appears to be some hope that common sense science and engineering may ultimately achieve a better environmental outcome for the planet.

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David Cebon @davidcebon.bsky.social · 17/11/2024

When we see the oil majors pulling out of major hydrogen projects; and Shell shutting down all of it's hydrogen refuelling stations in California; and the failure of dozens of hydrogen bus trials; and shutting down of major hydrogen-for-heating trials...

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David Cebon @davidcebon.bsky.social · 17/11/2024

It isn't obvious how much difference the HSC's efforts have made, but the #hydrogen tide seems to be turning. The main reason seems to be that the economic realities of hydrogen projects are becoming clear to politicians, and their willingness to subsidize the hydrogen industry is wearing thin.

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David Cebon @davidcebon.bsky.social · 17/11/2024

Great overview of the Hydrogen Economy by Chuck Kutscher. Worth watching... www.youtube.com/watch?v=sQwS...

youtube.com

What ever happened to the Hydrogen Economy?

YouTube video by Colorado Renewable Energy Society (CRES)

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David Cebon @davidcebon.bsky.social · 29/11/2023

Great article by @MLiebreich about the safety issues with the proposed 'Hydrogen Village' trial in Redcar. It is remarkable that @NGNgas, and @RedcarCleveland think this is reasonable behaviour and that @ClaireCoutinho is 'minded to go...

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David Cebon @davidcebon.bsky.social · 09/06/2022

A message to Ministers attending the IEA Global Conference on Energy Efficiency in Denmark this...

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David Cebon @davidcebon.bsky.social · 04/06/2022

Shipping Ammonia around the world for use as a fuel could have significant environmental consequences. A few thoughts and simple calcs in this LinkedIn...

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David Cebon @davidcebon.bsky.social · 29/04/2022

World's largest CCS project 'Gorgon' in Western Australia undershot its 5-year carbon capture target by 50%. This is not unlike the Canadian 'Quest' blue hydrogen project by Shell. More details...

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David Cebon @davidcebon.bsky.social · 07/12/2021

@h2coalition At last a little evidence in the noise around hydrogen! It is great to see this new group being formed to provide some information amongst the hydrogen hype. I am very pleased to be part of this initiative.

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David Cebon @davidcebon.bsky.social · 27/10/2021

What do you think about Direct Air Capture of CO2 emissions? I have done a few calculations of the magnitude of the task in this LinkedIn post. I would be interested in your...

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David Cebon @davidcebon.bsky.social · 25/10/2021

Video by YouTuber Tom Scott about electrification of long-haul road freight. A quote: "I wouldn't be too surprised if those wires become part of everyday life on the road in the next couple of decades" Well worth a view... youtu.be/_3P_S7pL7Yg

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David Cebon @davidcebon.bsky.social · 15/08/2021

Howarth and Jacobson's sensitivity analysis. Critics of the paper have pointed to its assumptions as being biased. I have supported the paper strongly in public. My reasoning is...

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David Cebon @davidcebon.bsky.social · 12/08/2021

Landmark paper on GHG emissions of Blue Hydrogen by @howarth_cornell and @mzjacobson This paper is a must read for anyone considering Blue Hydrogen as a low-carbon alternative to fossil...

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David Cebon @davidcebon.bsky.social · 27/07/2021

I am pleased to announce that we’re part of a consortium that’s been commissioned by @InnovateUK through @Department for Transport to conduct a study into the UK’s first #eHighway, as part of the plan for the #decarbonisation of road...

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David Cebon @davidcebon.bsky.social · 02/07/2021

I am very sad to report the passing of good friend and colleague Prof Noble Banadda, of Makarere University, who died on 1 July of Covid-19. eagle.co.ug/2021/07/02/sad-as-maker…

eagle.co.ug

Sad as Makerere's Prof. Noble Banadda succumbs to #Covid-19

Professor Noble Banadda, a Bio-systems Engineer at the de...

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David Cebon @davidcebon.bsky.social · 01/03/2021

Great article about the hydrogen economy by Ugo Bardi. Excellent discussion of the issues with Platinum catalysts in fuel cells... Well worth a read. cassandralegacy.blogspot.com/2020/1…

cassandralegacy.blogspot.com

The Hydrogen Hoax: Confessions of a Former Hydrogenist

A blog about collapse as caused by depletion of mineral r...

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David Cebon @davidcebon.bsky.social · 14/02/2021

I have just completed a blog summarising arguments about a hydrogen economy. It has been published in Inside Track by Green Alliance. I would be interested in your views......

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