Is Alstom’s Proposal For A Service Between London Euston And Wrexham Part Of A Cunning Plan?
Alstom have built and introduced into service between Buxtehude and Cuxhaven in Germany, the Coradia iLint hydrogen-powered train. The prototype has performed demonstrations in Austria, Canada, The Netherlands and Saudi Arabia.
This picture shows a Coradia iLint in Germany.
In the UK, Alstom had a plan to convert redundant Class 321 trains into a fleet of hydrogen-powered trains called Breeze, which I wrote about in Hydrogen Trains Ready To Steam Ahead, in January 2019.
This visualisation is from Alstom.
I suspect it didn’t appeal to train companies, as no orders appear to have been received.
But you can’t criticise Alstom for not trying, as in November 2021, they signed an agreement with Eversholt Rail Group to develop a hydrogen-powered Aventra, which I wrote about in Alstom And Eversholt Rail Sign An Agreement For The UK’s First Ever Brand-New Hydrogen Train Fleet.
This visualisation is from Alstom.
Visually, it looks just like any other Aventra and much better than the previous Breeze design.
In March 2018, I wrote Bombardier Bi-Mode Aventra To Feature Battery Power, which was based on this article in Rail Magazine.
These are a few points from the article.
- Development has already started.
- Battery power could be used for Last-Mile applications.
- The bi-mode would have a maximum speed of 125 mph under both electric and diesel power.
- The trains will be built at Derby.
- Bombardier’s spokesman said that the ambience will be better, than other bi-modes.
- Export of trains is a possibility.
- Bombardier’s spokesman also said, that they have offered the train to three new franchises. East Midlands, West Coast Partnership and CrossCountry.
Have Alstom looked at what they bought from Bombardier and decided the following train is possible, if they add some of their technology?
- A train the size needed by the customer, up to a length of at least ten cars.
- 125 mph under 25 KVAC overhead electrification.
- 100 mph with 750 VDC third rail electrification.
- Running on hydrogen away from electrification.
- 100 mph maximum speed running on hydrogen.
- A range of perhaps 500 miles, if it can emulate the hydrogen-powered Coradia iLint.
A train with this specification would have several applications in the UK.
- Fully-electric routes.
- Electric routes with perhaps a hundred miles of unelectrified track.
- Scenic routes, where the Nimbies wouldn’t like electrification.
These points should also be born in mind.
- There are now 110 mph Aventras in service with West Midland Trains on the West Coast Main Line.
- I recently came back from Cardiff to London in a twelve-car Class 387 train and there wasn’t too many unhappy passengers. It was certainly better than a rail replacement bus. I wrote about the trip in Cardiff To Reading In A Class 387 Train.
- Alstom believe you can certainly fit their hydrogen gubbins in an Aventra.
- The hydrogen gubbins appear to be from Cummins, who have a worldwide support network.
- Cummins can also supply complete hydrogen support systems. A truck can refuel the train, at one end of the route?
- Alstom have been doing the market research with the hydrogen-powered Coradia iLint, so I suppose they know what the market needs.
Could Alstom, with help from Cummins, have a zero-carbon 200 kph train and support systems, which has a hydrogen range of up to a thousand kms for export markets like the United States, Africa, Australia, India and South America?
Two big world-leading companies are surely better than one!
But Alstom has one big problem!
How do you fully test a 125 mph hydrogen-powered train?
- I know with aircraft, if you change the engine type on an existing aircraft, you only have to certify the engine and this is done on a Supplementary Type Certificate.
- Is it the same with trains, so a 110 mph Class 730 train, which is in service with West Midlands Trains, could be the basis of certifying a hydrogen-powered Aventra?
- The Coradia iLint was only a change from diesel to a hybrid hydrogen-electric engine, so was it certified this way?
- With the Coradia iLint, it seemed to go into service quite quickly, so did it do much of the testing in service?
I looks to me, that London Euston and Wrexham is an ideal route for a hydrogen bi-mode 125 mph train.
- The route has electrified sections, some of which have high operating speeds.
- The route has a convenient hydrogen supply from INEOS at Runcorn at the Northern end.
- Change between hydrogen and electric power would always take place in a station.
- A round trip needs less than 200 miles of running on hydrogen.
- South of Nuneaton, no hydrogen is used, so the train will be like a Class 730 train, that already uses the route.
- There are depots that can service Aventras on the route.
It is certainly a possibility, that the London Euston and Wrexham service will be used to test and showcase Alstom’s new Hydrogen Aventra.



One thing is certain, unless the vehicle builder could supply acceptable simulation modelling, which I doubt, the Coradia iLint wouldn’t have been introduced into passenger service withoutl motive power equipment. This would be required by the Federal Railway Authority, the supervisory, licensing and safety authority for railways. There are after all more factors to be considered than vehicle related issues. Its possible that Alstom could apply for exemptions, however, they would be reflected by limitations in the performance operating, maintenance, fuelling regime
Since the UK’s authority ORR still retains the Interooperability framework that applies to EU states, the same processes apply. It’ll be interesting to see the Alstom application, which should be published in a couple of weeks, and ORR’s response, which has to be issued in 60 or 90 days, I forget which.
Comment by fammorris | March 16, 2024 |
The one used for aircraft is very friendly to innovators.
Note that in this post, the prototype piston-engined Beaver flew on the 16th August 1947.
https://anonw.com/2019/11/02/harbour-air-set-to-become-the-first-all-electric-airline-in-the-world/
The electric one probably flew on a Supplemental Type Certificate.
https://en.wikipedia.org/wiki/Supplemental_type_certificate
Comment by AnonW | March 17, 2024 |
In an article published by Rail Business UK they report that Alstom have built there application around the initial use of Class 22X that are due to come off lease.
Comment by fammorris | March 21, 2024 |
Hot off the press from Roger Ford of Modern Railways
“So here we have an interesting financial calculation. DfT is removing a single return service from Shrewsbury, losing £1.4m a year, while encouraging the private sector to run five trains a day over the same route, abstracting revenue from the subsidised passenger operators.” This goes against DfT policy as it was understood.
Part of a cunning plan? Yes part of the DfT’s cunning plan
Comment by fammorris | March 22, 2024 |