Are Scotrail Going To Replace The Inter7City Trains With Hydrogen-Powered Trains?
This article in The Times is entitled The Caley Is Ready To Roll With New Venture Building Trains.
I feel that this is one of the most significant paragraphs in the article.
ScotRail has indicated that it wants to replace nearly two thirds of its fleet with new, low-carbon rolling stock between 2027 and 2035, comprising about 675 carriages in total, with an initial core order of 64 four and five-car units. A spokesman confirmed: “We are working on a business case that will go to the Scottish government for the procurement of a new suburban train fleet.”
The current Scotrail fleet includes.
- 25 Inter7City trains which comprise 52 Class 43 power cars and 120 Mark 3 carriages – Diesel – 120 cars – 1975
- 5 Class 153 trains – Diesel – 5 cars – 1987
- 42 Class 156 trains – Diesel – 84 cars – 1987
- 40 Class 158 trains – Diesel – 80 cars – 1987
- 30 Class 170 trains – Diesel – 90 cars – 1998
- 21 Class 318 trains – Electric – 63 cars – 1985
- 34 Class 320 trains – Electric – 66 cars – 1990
- 40 Class 334 trains – Electric – 120 cars – 1999
- 38 Class 380 trains – Electric – 140 cars – 2009
- 70 Class 385 trains – Electric – 234 cars – 2015
Note the last three fields are the traction type, total number of cars and the build year of the first train.
I will split these trains into four groups.
- Inter7City – Diesel – 25 trains – 120 cars
- BR Diesel – Diesel – 117 trains – 259 cars
- BR Electric – Electric – 55 trains – 129 cars
- Modern Electric – Electric – 148 trains – 494 cars
Note.
- This is a grand total of 345 trains and 1002 cars.
- Ignoring the modern electric trains and the total is 197 trains and 508 cars.
- The total for diesel trains is 142 trains and 359 cars.
- As Great Western Railway have withdrawn their similar GWR Castles, there must be reasons for Scotrail to do the same.
I will now look at replacement strategies, based on this statement from Scotrail.
ScotRail has indicated that it wants to replace nearly two thirds of its fleet with new, low-carbon rolling stock between 2027 and 2035, comprising about 675 carriages in total, with an initial core order of 64 four and five-car units.
I would expect 675 carriages would be about 232 trains, if the current average train length of just under three cars is carried over.
The Effect Of 675 New Carriages
Assuming that no modern electric trains were replaced, this would create a fleet size of at least 1169 carriages.
This would be a sixteen percent increase in carriages, which would be welcome news for some rail users.
The Initial Core Order Of 64 Four And Five-Car Units
All we know of this order, is the number of trains and that they will be new and low-carbon, according to indications from Scotrail.
Low-carbon would mean one of these traction options.
- Electric trains with full electrification.
- Battery-electric trains with partial-electrification.
- Hydrogen-powered trains.
Note.
- The heritage Taliban would object violently to full electrification of some historic routes.
- UNESCO would probably remove the World Heritable Site status to the Forth Bridge if it were to be electrified.
- Scotland is developing a hydrogen infrastructure.
- Hydrogen-powered trains have long ranges in the order of a thousand kilometres.
- Hydrogen-powered trains are essentially electric trains with a hydrogen fuel-cell to provide electricity as needed.
- Hydrogen-powered trains would need very little new infrastructure, except for a network of refuelling points across Scotland.
- Well-designed battery-electric and hydrogen-electric trains, should be very quiet and comfortable for passengers.
As an engineer, I would choose hydrogen-power for the initial core order.
Where would the initial core order be deployed?
Twenty-five would be used to replace the carbon-emitting elderly Inter7City trains.
These routes could probably handle the other forty.
- Aberdeen and Inverness
- Edinburgh/Glasgow and Aberdeen.
- Edinburgh/Glasgow and Inverness.
- Glasgow and South Western Line
- West Highland Line.
Note.
- A lot of diesel trains would be retired.
- Trains could be designed, for tourists with proper cycle spaces.
- The West Highland Line would get the five-car trains it needs.
This would be a good start.
Conclusion
It looks to me, that the Inter7City trains will be going and will be replaced by new trains.
But will Scotland take the great leap forward and power the new trains by Scottish hydrogen?
Do Rolls-Royce mtu Have A Plan To Decarbonise Their Diesel Engines For Rail Applications?
Data Sheets For Rolls-Royce mtu Diesel Engines For Trains
These are data sheets for various Rolls-Royce mtu diesel engines that can be used in rail applications.
Rolls-Royce Releases mtu Rail Engines For Sustainable Fuels
The title of this section, is the same as that of this press release from Rolls-Royce.
These four bullet points, act as sub-headings.
- mtu Series 1300, 1500 and 1800 engines already released; Series 1600 and 4000 to follow shortly
- Up to 90% CO2 savings by operating existing engines with Hydrotreated Vegetable Oil (HVO/renewable diesel)
- Locally emission-free operation possible in combination with mtu Hybrid PowerPack
- Field tests with DB Cargo and RDC Autozug Sylt
This is the first paragraph.
Rolls-Royce is taking a significant step towards even more climate-friendly rail transport with the release of mtu rail engines for use with sustainable fuels. With synthetic diesel fuels of the EN15940 standard, CO2 emissions can be reduced by up to 100 percent compared to fossil diesel. Hydrotreated Vegetable Oil (HVO or renewable diesel), which is already commercially available today, reduces CO2 emissions by up to 90 percent. If the fuels are produced with the help of renewable energy and green hydrogen – through what is termed a Power-to-X process – existing rail vehicles can be operated in a completely CO2-neutral manner. The mtu Series 1800 engines which are used in mtu PowerPacks, as well as Series 1300 and 1500 for locomotives and multi-purpose vehicles, are already approved for use with synthetic fuels such as HVO. Series 1600 and versions of Series 4000 engines will follow in the near future. The release of engines for climate-friendly fuels requires a series of tests and trials and Rolls-Royce has found strong partners for this activity. DB Cargo and RDC Autozug Sylt have already tested or are currently testing mtu Series 4000 engines with HVO in their locomotives.
How Does That Fit With The UK’s Population Of Rolls-Royce mtu Diesel Engines?
These classes of train have Rolls-Royce mtu engines.
- Class 43 power cars – 6V 4000 R41R
- Class 168 train – 6R 183 TD 13H
- Class 170 train – 6R 183 TD 13H
- Class 172 train – 12V 1800 R83
- Class 195 train – 12V 1800 R85L
- Class 196 train – 12V 1600 R85L
- Class 197 train – 12V 1600 R85L
- Class 800 train – 12V 1600 R80L
- Class 801 train – 12V 1600 R80L
- Class 802 train – 12V 1600 R80L
- Class 805 train – 12V 1600 R80L
- Class 810 train – 12V 1600 R80L
Note.
- Class 168 and 170 trains seem to be powered by older model Rolls Royce mtu engines.
- Class 180, 220,221 and 222 trains are powered by Cummins engines.
- I can’t find what engines power Class 805 and 810 trains, but it is reasonable to assume they have the same engines as the other Hitachi trains.
- As CAF are building LNER’s new tri-mode trains, I suspect these trains will also have Rolls Royce mtu engines.
It would appear that all the Rolls-Royce mtu rolling stock in the UK, with the possible exception of the Class 168 and 170 trains will be able to run on sustainable fuels.
Rolls Royce mtu And Hydrogen
This press release from Rolls-Royce is entitled Rolls-Royce Successfully Tests mtu Engines With Pure Hydrogen.
This is the first paragraph.
Rolls-Royce today announces that it has conducted successful tests of a 12-cylinder gas variant of the mtu Series 4000 L64 engine running on 100% hydrogen fuel. The tests, carried out by the Power Systems business unit, showed very good characteristics in terms of efficiency, performance, emissions and combustion. These tests mark another important step towards the commercial introduction of hydrogen solutions to meet the demand of customers for more sustainable energy.
Engines of mtu’s 4000 family are used in Class 43 power cars, so surely these developments could lead to hydrogen-powered freight locomotives.
The picture shows a Class 43 power car at Glasgow Queen Street station.
Could Rolls-Royce mtu hydrogen power keep these iconic trains running for a few more years?
In ‘Spirit of Innovation’ Stakes Claim To Be The World’s Fastest All-Electric Vehicle, I look at Rolls-Royce’s Spirit of Innovation, which set the record for an electric vehicle at 555.9 km/hour.
As the InterCity125 already holds the record for the fastest diesel train, perhaps Rolls-Royce will attempt to set a record for the fastest hydrogen-powered train?
Decarbarbonising The CAF Class 195, 196 And 197 Trains
If Rolls-Royce mtu develop a hydrogen version of the 1800 diesel engine, then this could be used to fully decarbonise the CAF trains.
The operators may consider it’s not worth it and continue with using sustainable fuels.
But the possibility is surely there.
There must also be the possibility of developing a fuel cell replacement for the 1800 diesel, that can be slotted into the train.
Decarbarbonising The Hitachi Class 80x Trains
Hitachi are developing battery packs and the data sheet can be downloaded from this page on the Hitachi web site.
Decarbarbonising The CAF Tri-Mode Trains
I feel that as CAF usually use Rolls-Royce mtu engines, I suspect these trains will be designed, so they can be converted to hydrogen.
Conclusion
Rolls-Royce mtu appear to be on a path to decarbonise all their diesel engines.
TransPennine Express To Stop Using Loco-Hauled Push-Pull Trains In December
The title of this post, is the same as that of this article on Railway Gazette.
This is the sub-heading.
TransPennine Express has confirmed that it will cease using its push-pull sets of Class 68 locomotives and MkVa coaches, previously designated Nova 3 sets, from the December 2023 timetable change.
These are my thoughts.
The Nova 3 Trains
Currently, the Nova 3 trains are made up from the following.
- 14 – Class 68 locomotives
- 52 – Mark 5a coaches
- 14 – Driving Van Trailers
Note.
- There have been complaints about the noise of the Class 68 locomotives at Scarborough and also at Marylebone with Chiltern Railways.
- The Class 68 locomotives could be switched to freight duties.
- The coaches are capable of 125 mph.
- A maximum of thirteen sets can be created.
- I suspect CAF wouldn’t object to being asked to build some more Mark 5a coaches and driving van trailers.
- The current fleet has a spare locomotive and a spare driving van trailer to allow for servicing.
All locomotives and coaches are a maximum of seven years old, so will have plenty of life left.
The Class 93 Locomotive
Rail Operations Group have ordered ten Class 93 locomotives, with twenty options, which have an impressive specification.
- Built by Stadler in Valencia.
- Same family as a Class 68 and 88 locomotive.
- Electric, diesel and battery power
- 110 mph operating speed
- Ability to pull passenger and freight trains.
- Delivery scheduled for 2023.
I believe that if the Class 68 diesel locomotive of a Nova 3 train, were to be replaced with a Class 93 locomotive, a very useful train would be created.
- It would be ten mph faster, than a Nova 3 train.
- It could use the diesel engine and the batteries to bridge gaps in electrification.
- By adding extra carriages it could be tailored to the needs of a route.
- In Vegetable Oil Fuelling Chiltern Railways Trains In UK First, I discuss how it might be possible to run all these locomotives on HVO to cut emissions.
- It could be quieter.
Could it be a simple way to reduce carbon emissions on a route?
The Successor To The Class 93 Locomotive
Stadler keep innovating in their designs for locomotives and are already building hydrogen-powered multiple units.
I can see Stadler coming up with a hydrogen-powered locomotive, with the following specification.
- In the same family as Class 68, 88 and 93 locomotives.
- Ability to do everything that Class 68, 88 and 93 locomotives can do.
- Ability to use 25 KVAC overhead electrification, where it exists.
- Ability to be able to be fitted with third-rail equipment, so it can use 750 VDC third-rail electrification, where it exists.
- At least a 110 mph operating speed.
- Range of at least 200 miles on hydrogen.
Stadler would sell a lot of these locomotives to decarbonise railways all over the world.
Possible Routes
These are possible routes for a rake of Mark 5a coaches hauled by a Class 93 locomotive or its zero-carbon successor.
Hull Trains
Consider.
- Hull Trains is an open access operator.
- Hull Trains currently have a fleet of five Class 802 trains, each of which have five-cars.
- A Class 93 locomotive has a power of 900 kW on diesel, whereas the Class 802 train has 2100 kW.
- The Class 802 train has nearly ten percent more capacity.
- In Ten-Car Hull Trains, I saw two Class 802 trains working as a pair. Does this indicate they have a capacity problem?
- Between Hull and the East Coast Main Line is only 36.1 miles and isn’t very challenging and I suspect could probably be easily handled by a Class 93-hauled rake of Mark 5a coaches.
- Adding extra coaches would not be difficult and would probably be less costly than with the more complex Class 802 trains.
- Hull Trains need to have a plan to decarbonise.
- HVO could be used to cut down emissions.
A Class 93-hauled rake of Mark 5a coaches could be an intermediate step to full decarbonisation with a hydrogen locomotive.
Would other operators of Class 802 trains like to increase their fleets, by adding Hull Trains’s five Class 802 trains?
TransPennine Express
Consider.
- TransPennine Express currently have four different fleets of trains, so it must cause problems with the allocation of drivers.
- The Class 397 trains are confined to the West Coast Main Line.
- So that leaves the bi-mode Class 802 trains and the diesel Class 185 trains to work the TransPennine routes.
The Wikipedia entry for the Class 802 train, gives more details of the plans for the Class 802 trains.
During October 2021, it was announced that TransPennine Express, Hitachi, and Angel Trains had agreed to convert one of the former’s Nova 1 trainsets into a battery hybrid train on a trial basis with the aim of supporting the technology’s further development. If successful, Hitachi and Angel Trains have proposed the retrofitting of the entire fleet. In January 2022, reports emerged that the Nova 1 fleet was operating under diesel power even when operating on entirely electrified sections of the East Coast Main Line on account of the insufficient power supplies present along the line; national railway infrastructure owner Network Rail is reportedly set to complete upgrades to the power supplies within two years.
The fleet is also set to benefit from the rollout of electrification under the Transpennine route upgrade scheme. The company’s management has noted that, in the event of largescale electrification being funded and implemented, the Class 802s could have some of their engines removed to reduce roughly 15% of their weight and thus raise their efficiency. Furthermore, Leo Goodwin, TPE’s managing director, has observed that while the Class 802s have an initial maximum speed of 125 mph (201 km/h), they have the capability of being modified for operating at 140 mph (230 km/h) if infrastructure upgrades were to permit such speeds at a future date.
Could an augmented fleet of battery-electric Class 802 trains handle the bulk of the TransPennine routes, with the shorter and unelectrified ones still being handled by the Class 185 trains?
These shorter routes are.
- Leeds and Huddersfield
- Manchester Piccadilly and Huddersfield
- York and Scarborough
Plans only exist to electrify Leeds and Huddersfield.
I suspect a few more battery-electric Class 802 trains would be needed.
Great Western Railway
Could a Class 93-hauled rake of Mark 5a coaches be used as a replacement for the GWR Castles or short-formation InterCity125s?
- They both have four passenger coaches.
- They are both 125 mph trains.
- A Class 68 locomotive could be used on routes without electrification.
- HVO could be used to cut down emissions.
- The Mark 5a coaches would probably be quieter, as they only have one diesel engine.
A Class 93-hauled rake of Mark 5a coaches could be an intermediate step to full decarbonisation with a hydrogen locomotive.
Alternatively, five-car Class 802 trains could be used as replacements for GWR Castles.
Great Western Railway also have the problem of decarbonising services between Bristol/Gloucester and Weymouth/Southampton/Portsmouth.
Great Western Railway look like they’re needing some innovative thinking.
I also suspect a few more battery-electric Class 802 trains would be needed for other routes.
Transport For Wales Rail
Transport for Wales Rail run a Premier Service between Holyhead and Cardiff using Class 67 locomotives and Mark 4 coaches.
According to the Wikipedia entry for Transport for Wales Rail, they have seven sets of 4/5 coaches to run this service.
If Transport for Wales Rail wanted to decarbonise this route, they would need to replace the locomotives for a zero-carbon unit.
Perhaps, their best solution, would be to wait until a suitable hydrogen-powered locomotive is available and buy seven rakes of new coaches with driving van trailers.
Grand Union
Grand Union has a detailed Wikipedia entry, where this is the first paragraph.
Grand Union is a prospective open access operator who are proposing to operate train services in the United Kingdom from England to Wales and Scotland. Grand Union is headed by Ian Yeowart, who founded previous open access operators Alliance Rail Holdings and Grand Central before selling both to Arriva.
That seems a sound foundation.
- They have permission to run trains between Paddington and Carmarthen starting in December 2024.
- They have also applied to run trains between Euston and Stirling.
- They are now backed by Spanish companies; Serena Industrial Partners and Renfe.
- They are proposing to use nine Mark 4 coaches hauled by Class 93 locomotives.
Consider.
- CAF has a factory in Wales.
- CAF has sold trains to Transport for Wales.
- The Mark 5a coaches will definitely be available by December 2024.
- Mark 5a coaches could easily be arranged as a rake of eight coaches and a driving van trailer.
- Grand Union is backed by Spanish companies.
I wouldn’t be surprised if Grand Union were to use sets of CAF-built Mark 5a coaches for their Carmarthen service. And later for their Stirling service.
A Class 93-hauled rake of Mark 5a coaches could be an intermediate step to full decarbonisation with a hydrogen locomotive.
Grand Central
Consider.
- Grand Central is another open access operator.
- Grand Central has a mixed fleet of twelve five-car diesel trains.
- These trains run under electrification on the East Coast Main Line.
- According to the Wikipedia entry for Grand Central trains, they have plans for expansion across the North and to and from London.
- Grand Central need to have a plan to decarbonise.
- HVO could be used to cut down emissions.
A Class 93-hauled rake of Mark 5a coaches could be an intermediate step to full decarbonisation with a hydrogen locomotive.
South Western Railway
South Western Railway have an excellent fleet of new or nearly new trains, with the exception of the diesel Class 158 and Class 159 trains, that work services between Waterloo and Exeter trains via Basingstoke and Salisbury.
- Waterloo and Exeter is 172 miles.
- Only the 47.7 miles between Waterloo and Basingstoke is electrified with 750 VDC third-rail electrification.
- Train lengths vary between five and eight cars.
- The current trains date from around 1990 and must need replacing soon.
I wouldn’t be surprised that if after a rebranding with new trains, this could be a popular route.
A version of Hitachi’s ubiquitous bi-mode Class 802 could be used.
But.
- They would need to be ordered and built.
- The third-rail gear, would need to be developed and tested.
- Passengers would be travelling for over two and a half hours with underfloor diesel engines.
An alternative could be a Class 68-hauled rake of Mark 5a coaches.
- These trains would be available after release from TransPennine Express.
- They would run in TransPennine Express formation.
- Length could be adjusted by adding or removing coaches, if required.
- The noise is all in the locomotive, which is isolated from the passengers.
At some point in the future, the route could be decarbonised by swapping the locomotive for a hydrogen-electric locomotive with the ability to handle third-rail electrification.
ScotRail
ScotRail have a similar problem to Great Western Railway with their short-formation InterCity125s.
- They have 52 Class 43 locomotives and 120 Mark 3 coaches, which is probably enough for 24 trains.
- Scotland has substantial amounts of electrification.
- I feel that a Class 68-hauled rake of Mark 5a coaches would be a more than adequate replacement.
- Class 93 locomotives could be used where routes are partially electrified.
- Scotland is not going to be short of green hydrogen.
When a suitable hydrogen-electric locomotive is available, these trains can be decarbonised.
CrossCountry
CrossCountry have a fleet consisting of the following trains.
- 5 – 2+7 InterCity125 trains
- 7 – two-car Class 170 trains
- 22 – three-car Class 170 trains
- 34 – four-car Class 220 trains
- 4 – four-car Class 221 trains
- 20 – five-car Class 221 trains
Note.
- The fleet is all diesel.
- I’ll ignore the Class 170 trains in this analysis.
- The Class 220 and 221 trains often work in pairs to provide the required capacity.
So how could these trains be decarbonised?
- The InterCity125s and the Class 220 and 221 trains could be replaced by a locomotive-hauled rake of Mark 5a coaches of an appropriate length.
- Motive power could be provided by an appropriate Class 68 or 93 locomotive.
When a suitable hydrogen-electric locomotive is available, these trains can be fully decarbonised.
Decarbonisation Of UK Main Line Services
It is generally assumed that the railways of the UK will need to fully decarbonise if the UK and the constituent nations are going to meet their decarbonisation targets.
I believe that my analysis shows that decarbonisation of main line passenger services can be achieved by the purchase of two types of trains.
- Five-car bi-mode Class 802 trains or similar.
- Locomotive-hauled rakes of Mark 5a coaches of an appropriate length.
Note.
- The Class 802 trains would be mainly to augment existing Hitachi fleets.
- Some Class 802 trains would be fitted with batteries instead of diesel generators to handle gaps in the electrification.
- The rakes of coaches would be powered by an appropriate locomotive.
- The lengths of the rakes of coaches would be adjusted to meet the demand of each service.
Initially, the following locomotives would be used.
- Class 68 locomotives would be used on unelectrified lines.
- Class 93 locomotives would be used on full or partially electrified lines.
When the hydrogen-electric locomotives become available, these would take over the routes, which couldn’t be decarbonised by full electrification or by using a Class 93 locomotive.
Is Liverpool Going To Get High Speed One-Point-Five?
Some of the best train journeys, I’ve ever had were not on high speed trains on specially-built tracks.
- The Thunder of Three-Thousand Three-Hundred Horses is from the early 1970s and describes a trip back from Darlington behind a Class 55 locomotive or Deltic.
- Norwich-In-Ninety Is A Lot More Than Passengers Think! describes a trip from London to Norwich and back, in the early days of the Norwich-in-Ninety timetable behind a Class 90 locomotive.
- I could add a journey on an InterCity 125 from London to Plymouth, which was running nearly thirty minutes late at Newbury, but was on time at Exeter.
The connection between these stories, was that all had a superb biological control system in the cab, who with help from the signallers was able to keep to a difficult schedule or make up time.
Last year, I made several journeys between Euston and Liverpool Lime Street. A couple of the journeys were unusual in that we arrived at our destination around six or more minutes early.
I suspect, that Avanti West Coast were experimenting to make sure that they get the new two trains per hour (tph) for the route perfect.
In Avanti West Coast Looks To Recover, I said this about Euston and Liverpool Lime Street services.
A paragraph talks about the second hourly service between London and Liverpool.
Avanti still has ambitions to introduce a second hourly service between Euston and Liverpool, but when this will come in will depend on demand recovery.
Consider.
- If would be desirable if some or all trains running on the route could achieve a timing of two hours between London and Liverpool.
- It is felt that the second service should stop at Liverpool South Parkway station, where the platforms are too short for eleven-car Class 390 trains.
- Avanti have stated they would like more stops in the Trent Valley, especially at Nuneaton, where they would connect to services to the East Midlands.
- Nuneaton is almost exactly halfway between London and Liverpool.
- Running two tph with Class 807 trains would need nine trains and Avanti have only ordered ten in total.
I believe that a practical timetable like this could work.
- Class 390 train – one tph – Non-stop or perhaps a single stop in the Midlands – Under two hours
- Class 807 train – one tph – Stopping at Nuneaton, Stafford, Crewe, Runcorn and Liverpool South Parkway – Current time or better
An hourly service between London and Liverpool in under two hours would surely be a passenger magnet.
So what is possible?
I found this service on Real Time Trains, which ran on the 16th February 2023.
- Scheduled to leave Liverpool Lime Street at 0943, but left at 1012 or 29 minutes late.
- Train did a ninety second unadvertised stop at Liverpool South Parkway. Now running 26 minutes late.
- There was a two minute stop at Runcorn and a four-minute stop at Crewe. Now running 25 minutes late
- There was a one-minute stop at Milton Keynes. Now running 20 minutes late.
- The train arrived in London Euston at 1220 or 16 minutes late.
Note.
- Liverpool Lime Street and London Euston took 2 hours and 8 minutes.
- As Liverpool Lime Street and London Euston is a distance of 193.6, a 128 minute journey is an average speed of 90.7 mph
- Liverpool Lime Street and Crewe took 32 minutes with two stops.
- Crewe and London Euston took 1 hour and 32 minutes with one stop.
- In West Coast Main Line Electro-Diesels On Test, I found that a Glasgow and London train took 1 hour and 28 minutes between Crewe and London Euston.
- All services last week had the unadvertised stop at Liverpool South Parkway
What can be deduced from these figures?
- If the Crewe stop were to be cut out, two hours and four minutes could certainly be possible between Liverpool Lime Street and London Euston with a Class 390 train.
- I also suspect that if the train were to be run non-stop, that the other four minutes could be saved.
So will Avanti West Coast run the current service using new Class 807 trains, with the extra stop at Liverpool South Parkway and perhaps other stations and the additional hourly train with a non-stop nine-car Class 390 train?
This way of delivering a two tph service would mean.
- Runcorn, Crewe and Milton Keynes would not lose any of their current fast services to and from Liverpool Lime Street and London Euston.
- Liverpool South Parkway station is probably a more convenient location for some passengers going to and from the South. It would gain an hourly service to London Euston.
- There will be an additional 77% of seats between Liverpool Lime Street and London Euston.
- Passengers who don’t like tilting trains could use the Class 807 trains.
- One tph would be timed for two hours or under and would be a marketing man’s dream.
No train would be slower than the current services.
Improvements To The Non-Stop Class 390 Train Service
I earlier said.
As Liverpool Lime Street and London Euston is a distance of 193.6, a 128 minute journey is an average speed of 90.7 mph.
An average speed of 90.7 mph, doesn’t seem fast for a Class 390 train with an operating speed of 125 mph or 140 mph under full ERTMS digital signalling.
These are some times for a selection of average speeds between Liverpool Lime Street and London Euston.
- 90 mph – 2 hours 9 minutes
- 100 mph – 1 hour 56 minutes
- 110 mph – 1 hour 46 minutes
- 120 mph – 1 hour 37 minutes
- 125 mph – 1 hour 33 minutes
- 130 mph – 1 hour 29 minutes
- 135 mph – 1 hour 26 minutes
- 140 mph – 1 hour 23 minutes
Note.
- Average speeds of upwards of 130 mph are unlikely, but I’ve added them to show that the train speed is less important than the speed of the track.
- High Speed Two’s planned time between Liverpool Lime Street and London Euston is 1 hour and 32 minutes.
But I do think times of around 1 hour and 35 minutes should be possible for non-stop Class 390 trains between Liverpool Lime Street and London Euston with an improved track and full ERTMS digital signalling.
Improvements To The Stopping Class 807 Train Service
As the track of the West Coast Main Line is improved with better track and full ERTMS digital signalling, this will also benefit the times of the stopping service run by the new Class 807 trains.
The Class 807 train with its lighter weight will have better acceleration than the current Class 390 trains. This will mean, that they will not be slowed as much, when they stop.
It may be possible to add extra stops at places like Watford Junction, Nuneaton and Stafford and still time the train for a few minutes over two hours.
Avanti West Coast Looks To Recover, is a post, that I wrote based on an interview in Modern Railways with Phil Whittingham, who is MD of Avanti West Coast.
There is a lot of talk in the article about.
- Using Nuneaton to connect the North West and the East Midlands.
- The acceleration of the Class 807 trains.
- Improving the Customer Service.
I think that Liverpool will find it is connected to more of the country on services with just a single change.
Conclusion
Liverpool is getting greater connectivity to the Midlands and the South-East of England, with times, that could be improved to be comparable with High Speed Two.
Rolls-Royce Successfully Tests mtu Engines With Pure Hydrogen
The title of this post, is the same as that of this press release from Rolls-Royce.
These are the two bullet points.
- mtu gensets and cogeneration units to be further developed for 100% hydrogen use
- First use in the new CO2-neutral container terminal in the German inland port of Duisburg
This is the first paragraph.
Rolls-Royce (LSE: RR., ADR: RYCEY) today announces that it has conducted successful tests of a 12-cylinder gas variant of the mtu Series 4000 L64 engine running on 100% hydrogen fuel. The tests, carried out by the Power Systems business unit, showed very good characteristics in terms of efficiency, performance, emissions and combustion. These tests mark another important step towards the commercial introduction of hydrogen solutions to meet the demand of customers for more sustainable energy.
Note.
- Rolls-Royce mtu have converted and tested a natural gas version of the Series 4000 L64 engine.
- The Class 43 power cars used in the iconic InterCity 125 train and powered by mtu V16 4000 R41R engines.
Are the two engines related? If so, can Rolls-Royce mtu build a hydrogen engine that could power an InterCity 125?
It was a rapid development.
Andrea Prospero, an engineer at Rolls-Royce responsible for the development of the hydrogen engine, is quoted as saying.
We are very pleased with the rapid progress. The very low engine emissions are well below the strict EU limits, no exhaust gas aftertreatment is required.
Due to the different combustion behaviour of hydrogen compared to natural gas, some engine components including fuel injection, turbocharging, piston design and control, were modified in the test engine. However, by using proven technologies within the Power Systems’ portfolio, such as mtu turbochargers, injection valves, and engine electronics and control, the development of the engine to use hydrogen was advanced quickly and efficiently.
Diesel and natural gas internal combustion engine manufacturers like Cummins, Rolls-Royce mtu and several other companies, have a long history of research, that they have the knowledge to convert diesel or natural gas engines to hydrogen.
So far only Cummins, JCB and Rolls-Royce mtu have disclosed a multi-fuel line of engines.
First Deployment For CO2-Neutral Power Supply At Duisport
There is a section in the press release called First Deployment For CO2-Neutral Power Supply At Duisport, where this is said.
Duisport, one of the world’s largest inland ports, is working with several partners to build a hydrogen-based supply network for its new terminal, ready for operation in 2024. In the future, most of the electricity required by the port itself will be generated directly on site from hydrogen in a CO2-neutral manner. This will be achieved by two combined heat and power plants with mtu Series 4000 hydrogen engines (with a total installed capacity of 2MW) as well as three mtu fuel cell systems (with a total installed capacity 1.5MW).
As part of its sustainability program, Rolls-Royce is realigning the product portfolio of Power Systems towards more sustainable fuels and new technologies that can further reduce greenhouse gas emissions.
There is also this Rolls-Royce graphic, which shows the energy sources.
It would appear batteries, combined heap and power (CHP), grid electricity, hydrogen electrolyser, hydrogen storage and renewable electricity are being brought together to create a climate-neutral energy system.
Is this a world-first, where hydrogen engines and fuel cell systems will be working together?
Rolls-Royce Releases mtu Rail Engines For Sustainable Fuels
The title of this post, is the same as that of this press release from Rolls-Royce.
The press release starts with these bullet points.
- mtu Series 1300, 1500 and 1800 engines already released; Series 1600 and 4000 to follow shortly
- Up to 90% CO2 savings by operating existing engines with Hydrotreated Vegetable Oil (HVO/renewable diesel)
- Locally emission-free operation possible in combination with mtu Hybrid PowerPack
- Field tests with DB Cargo and RDC Autozug Sylt
Note.
- Hitachi Class 800, 802, 805 and Class 810 trains appear to use Series 1600 engines.
- CAF Class 195, 196 and Class 197 trains appear to use Series 1800 engines.
- Class 43 power cars, as used in InterCity 125 trains appear to use Series 4000 engines.
It would appear that many of the UK’s new diesel trains and the remaining Class 43 power-cars can be converted to run on HVO.
This paragraph from the press release gives more details.
Rolls-Royce is taking a significant step towards even more climate-friendly rail transport with the release of mtu rail engines for use with sustainable fuels. With synthetic diesel fuels of the EN15940 standard, CO2 emissions can be reduced by up to 100 percent compared to fossil diesel. Hydrotreated Vegetable Oil (HVO or renewable diesel), which is already commercially available today, reduces CO2 emissions by up to 90 percent. If the fuels are produced with the help of renewable energy and green hydrogen – through what is termed a Power-to-X process – existing rail vehicles can be operated in a completely CO2-neutral manner. The mtu Series 1800 engines which are used in mtu PowerPacks, as well as Series 1300 and 1500 for locomotives and multi-purpose vehicles, are already approved for use with synthetic fuels such as HVO. Series 1600 and versions of Series 4000 engines will follow in the near future. The release of engines for climate-friendly fuels requires a series of tests and trials and Rolls-Royce has found strong partners for this activity. DB Cargo and RDC Autozug Sylt have already tested or are currently testing mtu Series 4000 engines with HVO in their locomotives.
Rolls-Royce mtu seem to have covered all issues.
This is a very significant statement in the paragraph.
If the fuels are produced with the help of renewable energy and green hydrogen – through what is termed a Power-to-X process – existing rail vehicles can be operated in a completely CO2-neutral manner.
This must be the most affordable way to make your diesel trains zero carbon.
Conclusion
Rolls-Royce and Cummins seem to be doing a thoroughly professional job in decarbonising the diesel engines they have made in recent years.
It now needs someone to take small diesel engines down the conversion route, just as Rolls-Royce mtu and Cummins are cleaning up their large engines.
Thales Supports Rollout Of UK Digital Railway Programme
The title of this post, is the same as that of this press release from Porterbrook.
The press release starts with these bullet points.
- Thales wins the fitment and supply of European Train Control System (ETCS) onboard units for Class 43 high-speed train retrofit.
- Implementation will benefit passengers and freight operators by delivering additional capacity, improving performance, enhancing safety and reducing the costs of operating the national railway.
Which is followed by this explanation.
As a key player in delivering this digital transformation, Thales has today been awarded the contract for the Class 43 First in Class (FiC) design and fitment project that will use Network Rail’s new measurement train power cars in the Infrastructure Measurement fleet. The FiC project will culminate in a Type approval from the Office of Road and Rail to enable subsequent Class 43 ETCS fleet fitments.
The new Thales onboard system will be integrated as part of the Digital Railway train control system, and will enable rolling stock to operate on ETCS-equipped infrastructure. The onboard equipment is an evolution of Thales’s level 1 ETCS system that has been successfully deployed worldwide.
This could be a smart move.
- Type Approval will mean that the Class 43 power cars of ScotRail’s Inter7Cities, Great Western Railway’s Castles and those of other operators can be retrofitted.
- Will the New Measurement Train also be used to test the digital signalling, as it covers all the tracks in Great Britain in a four-weekly cycle?
- Fitting of these iconic 1970’s designed power cars with the latest modern signalling could be a design exercise, that helps in the fitting of ETCS to other older and unusual locomotives.
I still think, that because of the iconic nature of the InterCity125, that we may see a conversion of Class 43 power cars to more sustainable operation.
- All power cars now have modern MTU diesel engines, which probably could be fuelled by hydrogen.
- The simplest way would be to run them on HVO, as I wrote about in Powered By HVO.
- Some operations like the short format trains in Scotland and South-West England might be more suitable for battery-electric operation.
- Given that there are 167 in operation or in store, it would be a good-sized order for the company converting the power cars.
I also believe that zero-carbon InterCity 125s could be an unusual tourist attraction.
Conclusion
The fitting of digital signalling to Class 43 power cars is a good move, but is it the start of a wider plan to bring these iconic trains up to modern standards.
Union Demands Withdrawal Of All HSTs After Carmont Report
The title of this post, is the same as that of this article on Railnews.
This is the first paragraph.
The TSSA union says it has written to the regulator demanding the immediate withdrawal of all surving HSTs, after new revelations in the Carmont derailment. report.
Manuel Cortes of the TSSA feels that the corrosion problem found in the train that crashed at Carmont, may be present in other trains.
He finishes with this this statement.
Frankly, it’s time to ban the HSTs. They were great in their day, but that day is nearly 50 years ago now and they simply aren’t up to modern safety standards.
I must admit, that I tend to agree with him, on this last point.
Scotrail have the following fleet of Inter7City trains.
- There are 52 Class 43 power cars and 120 Mark 3 coaches, which are arranged as nine four-car and seventeen five-car trains.
- The trains have sliding passenger doors.
- The trains meet all the regulations for Persons of Reduced Mobility.
- The trains have wi-fi and power points.
- They seem to run at up to 100 mph, as against the 125 mph for InterCity 125‘s in the past.
- The power cars have generally been reengined with modern MTU 16V4000 R41R diesel engines.
But they are now on average over forty years old.
In Battery And Hydrogen Trains For ScotRail ‘Could Make Scotland A Global Leader’ In Zero-Emission Transport, which is based on an article in the Scotsman with the same title, I said this.
Other points from the article.
- Talgo appear to have passed the story to Scotland on Sunday.
- Three routes are mentioned; Borders Railway, Fife Circle and Glasgow-East Kilbride.
- The new trains could help phase out diesel trains by 2035, which is Scottish Government policy.
- The Inter7City trains might be replaced by 2030.
- Talgo hopes to win an order for its factory in Fife.
Talgo’s Managing Director is quoted as saying, they are starting testing of a hydrogen and electric train with a range of 311 miles.
Consider.
- I wrote about this train in Talgo To Begin Fuel Cell Loco Trials.
- Talgo’s hydrogen and electric train would be ideal for Scotland’s railways of which only forty percent are electrified.
- A four or five-car high specification hydrogen and electric train would be ideal for the Inter7City routes, if it were built specifically for the routes.
- The range would cover all of Scotland.
- Hydrogen hubs are being planned all over Scotland.
- Scotland have 26 Inter7City trainsets.
This could be a rather nice order to fund the factory and test all the trains close to the factory.
- There could be as many as fifty trains.
- They would probably have an operating speed of 100 mph on electricity.
- Would the speed on hydrogen be 100 mph or perhaps a bit less?
- They would be able to use 25 KVAC overhead electrification, where it exists.
- They could have a length of three, four or five cars.
I wouldn’t be surprised to see three or four car trains for the suburban trains and four or five car trains for the Inter7City replacements.
Will We See Class 43 Power Cars Converted To Hydrogen?
To say that the Class 43 power cars of the InterCity 125 trains are iconic is rather an understatement.
Note.
They were built by British Rail in the late 1970s and early 1980s.
- They have an operating speed of 125 mph.
- They are now powered by a modern MTU 16V4000 R41R diesel engine after being re-engined earlier this century.
- They have an electric transmission.
According to Wikipedia, there are over a hundred and twenty in service.
At the back of the power car there is a lot of space, as this picture shows.
This press release from Rolls-Royce is entitled Rolls-Royce Launches mtu Hydrogen Solutions For Power Generation.
These are the introductory bullet points to the press release.
- From 2022 mtu Series 500 and Series 4000 ready for 25% hydrogen
- From 2023 mtu engines and conversion kits available for 100% hydrogen
And what engine is there in a Class 43 power car? – It’s an MTU 16V4000 R41R diesel engine.
Is it an mtu Series 4000 engine?
If it is, there is space in the back of the power car for the hydrogen tank and the diesel engine can be converted to run on hydrogen, Rolls-Royce have everything they need break the speed record for hydrogen-powered trains. After all power cars; 43102 and 43159 hold the diesel-train speed record at 148 mph.
It would be the ultimate Roller.
Will Zero-Carbon Freight Trains Be Powered By Battery, Electric Or Hydrogen Locomotives?
These are a few initial thoughts.
We Will Not Have A One-Size-Fits-All Solution
If you consider the various freight and other duties, where diesel locomotives are used, you get a long list.
- Light freight, where perhaps a Class 66 locomotive moves a few wagons full of stone to support track maintenance.
- Intermodal freight, where a Class 66 locomotive moves a long train of containers across the country.
- Stone trains, where a Class 59 or Class 70 locomotive moves a very heavy train of aggregate across the country.
- Empty stock movements, where a diesel locomotive moves an electrical multiple unit.
- Supporting Network Rail with trains like the New Measurement Train, which is hauled by two diesel Class 43 power cars.
- Passenger trains at up to and over 100 mph.
I can see a need for several types of zero-carbon locomotive.
- A light freight locomotive.
- A medium freight locomotive, that is capable of hauling many intermodal trains across the country and would also be capable of hauling passenger services.
- A heavy freight locomotive, capable of hauling the heaviest freight trains.
- A Class 43 power car replacement, which would probably be a conversion of the existing power cars. Everybody loves InterCity 125s and there are over a hundred power cars in regular service on railways in the UK.
There are probably others.
The UK Hydrogen Network Is Growing
Regularly, there are news items about companies in the UK, who will be providing green hydrogen to fuel cars, vans, buses, trucks and trains.
Hydrogen is becoming a fuel with a much higher availability.
The UK Electricity Network Is Growing And Getting More Resilient
We are seeing more wind and solar farms and energy storage being added to the UK electricity network.
The ability to support large numbers of battery-electric buses, cars, trucks and trains in a reliable manner, is getting more resilient and much more comprehensive.
There Will Be More Railway Electrification
This will happen and installation will be more innovative. But predicting where electrification will be installed, will be very difficult.
Hydrogen Fuel Cells Now Have Rivals
Hydrogen fuel cells are normally used to convert hydrogen gas to electricity.
But over the last few years, alternative technology has evolved, which may offer better methods of generating electricity from hydrogen.
- Rolls Royce have developed a beer keg-sized 2.5 MW generator, that could run on hydrogen, which I wrote about in Our Sustainability Journey.
- Honeywell are possibly going the same route, which I wrote about in Honeywell Introduces Power Source For Hybrid-Electric Aircraft.
- JCB have converted diesel engines to run on hydrogen, which I wrote about in JCB Finds Cheap Way To Run Digger Using Hydrogen.
- Caterpiller, Cummins and Rolls-Royce mtu are showing signs of taking a similar route to JCB.
Fuel cells will not be having it all their own way.
Batteries Are Improving Their Energy Density
This is inevitable. and you are starting to see improvements in the fabrication of the battery packs to get more kWh into the space available.
In Wrightbus Presents Their First Battery-Electric Bus, I said this about the Forsee batteries used in the new buses from Wrightbus.
The Forsee brochure for the ZEN SLIM batteries gives an energy density of 166 Wh per Kg. This means that the weight of the 454 kWh battery is around 3.7 tonnes.
A one-tonne battery would have a capacity of 166 kWh.
- It is the highest value I’ve so far found.
- Technology is likely to improve.
- Other battery manufacturers will be striving to match it.
For these reasons, in the rest of this post, I will use this figure.
Some Example Locomotives
In this section, I shall look at some possible locomotives.
Conversion Of A Class 43 Power Car
There are two Class 43 power cars in each InterCity 125 train.
- The diesel engine is rated at 1678 kW.
- The transmission is fully electric.
- These days, they generally don’t haul more than five or six intermediate Mark 3 coaches.
I would see that the biggest problem in converting to battery power being providing the means to charge the batteries.
I suspect that these power cars would be converted to hydrogen, if they are converted to zero-carbon.
- I would estimate that there is space for hydrogen tanks and a small gas-turbine generator in the back of the power car.
- Much of the existing transmission could be retained.
- A zero-carbon power car would certainly fit their main use in Scotland and the South-West of England.
- I doubt hydrogen refuelling would be a problem.
They may even attract other operators to use the locomotives.
A Battery-Electric Locomotive Based on A Stadler Class 88 Locomotive
I am using this Class 88 locomotive as a starting point, as the locomotive is powerful, reliable and was built specifically for UK railways. There are also ten already in service in the UK.
In Thoughts On A Battery Electric Class 88 Locomotive On TransPennine Routes, I started the article like this.
In Issue 864 of Rail Magazine, there is an article, which is entitled Johnson Targets A Bi-Mode Future.
As someone, who has examined the mathematics of battery-powered trains for several years, I wonder if the Age of the Hybrid Battery/Electric Locomotive is closer than we think.
A Battery/Electric Class 88 Locomotive
After reading Dual Mode Delight (RM Issue 863), it would appear that a Class 88 locomotive is a powerful and reliable locomotive.
-
- It is a Bo-Bo locomotive with a weight of 86.1 tonnes and an axle load of 21.5 tonnes.
- It has a rating on electricity of 4,000 kW.
- It is a genuine 100 mph locomotive when working from 25 KVAC overhead electrification.
- The locomotive has regenerative braking, when working using electrification.
- It would appear the weight of the diesel engine is around seven tonnes
- The closely-related Class 68 locomotive has a 5,600 litre fuel tank and full of diesel would weight nearly five tonnes.
The locomotive would appear to be carrying between 7 and 12 tonnes of diesel-related gubbins.
Suppose that the diesel-related gubbins of the Class 88 locomotive were to be replaced with a ten tonne battery.
Using the Forsee figures, that I quoted earlier, this battery would hold 1660 kWh.
At the power level of the 700 kW of the Caterpillar C27 diesel engine in the Class 88 locomotive, that would give more than two hours power.
It looks to me, that a battery-electric Class 88 locomotive could be a very useful locomotive.
It might even be able to haul freight trains in and out of the Port of Felixstowe, which would be a big advantage in decarbonising the port.
Certainly, methods to charge battery trains on the move, are being developed like the system from Hitachi ABB Power Grids, that put up short sections of 25 KVAC overhead electrification, which would be driven by a containerised power system.
These systems and others like them, may enable some battery-electric freight trains to work routes like.
- Felixstowe and Ipswich.
- Ipswich and Peterborough
- Peterborough and Nuneaton.
- Peterborough and Doncaster via Lincoln
- Birmingham and Oxford
None of these routes are fully-electrified.
But because of the power limit imposed by the batteries, these locomotives will need to be recharged at points on the route.
This Google Map shows the Ipswich and Peterborough route crossing the Fen Line at Ely station.
Note.
- Ely Dock junction in the South-West corner, where the line from Ipswich and Bury St. Edmunds joins the lines through Ely.
- Ely station towards the North-East corner of the map.
- Passenger trains run through the station.
But freight trains can take a route on the Eastern side of the station, which is not electrified.
At Ely station, a loop like this can be electrified using the existing electrification power supply, but at other places, systems like that from Hitachi ABB Power Grids can be used to electrify the loop or an appropriate section of the route.
These short sections of electrification will allow the train to progress on either electric or battery power.
A Hydrogen-Electric Locomotive Based on A Stadler Class 88 Locomotive
In The Mathematics Of A Hydrogen-Powered Freight Locomotive, I looked at creating a hydrogen-powered locomotive from a Class 68 locomotive.
I decided it was totally feasible to use readily available technology from companies like Rolls-Royce and Cummins to create a powerful hydrogen-powered locomotive.
The Class 68 locomotive is the diesel-only cousin of the electro-diesel Class 88 locomotive and they share a lot of components including the body-shell, the bogies and the traction system.
I suspect Stadler could create a Class 88 locomotive with these characteristics.
- 4 MW using electric power
- At least 2.5 MW using hydrogen power.
- Hydrogen power could come from Rolls-Royce’s 2.5 MW generator based on a small gas-turbine engine.
- 100 mph on both electricity and hydrogen.
- It would have power output on hydrogen roughly equal to a Class 66 locomotive on diesel.
- It would have a range comparable to a Class 68 locomotive on diesel.
This locomotive would be a zero-carbon Class 66 locomotive replacement for all duties.
A Larger And More Powerful Hydrogen-Electric Locomotive
I feel that for the largest intermodal and stone trains, that a larger hydrogen-electric locomotive will be needed.
With the way Wabtec are going in the United States, I wouldn’t be surprised to see a suitable locomotive cross the pond.
Conclusion
In the title of this post, I asked if freight locomotives of the future would be battery, electric or hydrogen.
I am sure of one thing, which is that all freight locomotives must be able to use electrification and if possible, that means both 25 KVAC overhead and 750 VDC third rail. Electrification will only increase in the future, making it necessary for most if not all locomotives in the future to be able to use it.
I feel there will be both battery-electric and hydrogen-electric locomotives, with the battery-electric locomotives towards the less powerful end.
Hydrogen-electric will certainly dominate at the heavy end.
The Anonymous Widower 