Chiltern Railways Seeks Proposals For Low-Emission Multiple-Unit Fleet
The title of this post, is the same as that of this article on Railway Gazette.
These are the first three paragraphs.
Chiltern Railways is seeking proposals for the supply of between 20 and 70 new or converted ‘low-emission’ multiple units.
The operator has called for ‘established’ rolling stock manufacturers, owners and modifiers to propose vehicles which would provide a ’meaningful’ reduction in the emissions and external noise compared to its existing diesel multiple-units, particularly in urban areas.
The envisaged five-year framework agreement has an estimated value of up to £400m, including supply and maintenance of the fleet, refuelling infrastructure and any depot modifications.
I have my thoughts.
Chiltern’s Rolling Stock
Chiltern Railways have two different types of rolling stock; diesel multiple units and rakes of coaches haled by diesel locomotives.
Chiltern’s Diesel Multiple Units
Chiltern has these diesel multiple units.
- Class 165 diesel trains – 28 x two-cars – 56 cars
- Class 165 diesel trains – 11 x three-cars – 33 cars
- Class 168 diesel trains – 9 x two-cars – 18 cars
- Class 168 diesel trains – 9 x three-cars – 27 cars
- Class 168 diesel trains – 10 x four-cars – 40 cars
Note.
- The trains were built between 1990 and 2004.
- The Class 165 trains are 75 mph units, whereas the Class 168 trains are 100 mph units.
- These total to 67 trains and 174 cars.
- This is an average train length of 2.6 cars.
Could a fleet of three-car low-emission 100 mph trains fit Chiltern’s requirements?
- They could work in pairs for six-car units for Birmingham Moor Street and Oxford.
- There may be a need for some four-car units.
But how will they be powered?
- Pure diesel will surely give out too many emissions!
- Would an mtu Hybrid PowerPack lower emissions enough?
- Could hydrogen-power be used, either with fuel-cells or a hydrogen internal combustion engine?
In Alstom And Eversholt Rail Sign An Agreement For The UK’s First Ever Brand-New Hydrogen Train Fleet, I wrote about Alstom’s proposed Hydrogen Aventra.
A version of these trains could be ideal, if Children could source the fuel economically.
Chiltern’s Diesel-Hauled Rakes Of Coaches
Chiltern have four rakes of Mark 3 coaches hauled by Class 68 locomotives.
These could be replaced by pairs of three-car low-emission’ multiple units.
Conclusion
A fleet of seventy three-car ‘low-emission’ multiple units, powered by hydrogen could be an innovative solution to the trains to run Chiltern’s services.
Northern Trains Plans Framework Contract For 450 Multiple-Units
The title of this post, is the same as that of this article on Railway Gazette.
This is the first paragraph.
Northern Trains has invited expressions of interest in a framework contract covering the supply of up to 450 multiple-units to replace ‘significant quantities of its ageing fleet’.
These are other details.
- Firm orders would be placed in phases.
- The initial order would be for ‘multi-mode’ multiple-units.
- Battery-electric or electric-only trains would be included in subsequent orders.
- Trains would have a minimum design life of 35 years from acceptance.
- The ability for the multi-mode units to be converted to electric or battery-electric power as part of an ‘in-life decarbonisation’ programme.
These four paragraphs outline the framework agreement between Northern Trains, the train manufacturer and the owners, who will finance the trains.
The framework agreement would run for eight years, with Northern able to order rolling stock in multiple phases.
Each phase would include a train manufacturing and supply agreement and a technical support and spares supply agreement.
The supplier would provide tools and spare parts, and there would be options for the supply of mock-ups and a cab simulator. Northern is to run a separate procurement for an owning party which would purchase each fleet and lease it to the operator.
The owner would be party to each manufacturing and supply agreement, and there may be different owning parties for each order phase.
This is a well-thought out proposal, that would be worth around a billion pounds to the train manufacturer.
It would probably be based around a family of trains like Alstom’s Aventra, CAF’s Civity or Stadler’s FLIRT.
For a series of orders of such a value, I think we will see some excellent proposals.
The deal will transform rail travel in the North.
I have some thoughts.
Which Trains Will Be Replaced?
Northern Trains fleet includes these ageing trains.
- Class 150/0 diesel trains – 6 x three-car – 18 cars
- Class 150/1 diesel trains – 46 x two-car – 92 cars
- Class 150/2 diesel trains – 26 x two-car – 52 cars
- Class 155 diesel trains – 7 x two-car – 14 cars
- Class 156 diesel trains – 65 x two-car – 130 cars
- Class 158/0 diesel trains – 45 x two-car – 90 cars
- Class 158/9 diesel trains – 8 x three-car – 24 cars
- Class 319 electric trains – 12 x four-car – 48 cars
- Class 323 electric trains – 34 x three-car – 102 cars
- Class 333 electric trains – 16 x four-car – 64 cars
- Class 769 bi-mode trains – 8 x four-car – 32 cars
Note.
- These total to 273 trains and 661 cars.
- If the 16 Class 170 trains, which are of three-cars, were also to be replaced. that would bring the total trains to be replaced to 289 trains and 709 cars.
I would expect the difference between 273-289 current trains and 450 trains in the article, is explained by new services and increased services on certain routes.
Which Trains Could Be Retained?
Northern Trains fleet includes these new trains.
- Class 195 diesel trains – 25 x two-cars – 50 cars
- Class 195 diesel trains – 33 x three-cars – 99 cars
- Class 331 electric trains – 31 x three-cars – 93 cars
- Class 331 electric trains – 12 x four-cars – 48 cars
Note.
- These trains were all built by CAF in the last five years.
- These total to 101 trains and 290 cars.
But if they have an expected life of 35 years, the diesels will have to be converted to zero-carbon trains.
Will The CAF Trains Be Retained?
Consider.
- If all the ageing trains and those not built by CAF were to be replaced then that would be 289 trains and 709 cars.
- If the nearly-new CAF trains were also to be replaced that would be 390 trains and 999 cars.
- Add in a few more trains for expanded services and you’re got the figure of 450 trains given in this article.
- If the CAF trains were to be replaced, then Northern Trains would have an homogenous fleet of new trains from one manufacturer, with all the advantages in operation and maintenance.
On the other hand, I haven’t read any bad criticism of these CAF trains, so I will assume that there is no pressing reason to replace them.
And of course Northern Trains could have an homogenous fleet of new CAF trains.
This is said in the article.
The supplier would provide tools and spare parts, and there would be options for the supply of mock-ups and a cab simulator.
As this is specifically mentioned, do Northern lack a simulator for driver training?
What About The Manchester Bee Network And Other Local Networks?
Will these networks want to take control of their local trains?
If there is an homogenous fleet of new trains from one manufacturer, then surely, it would be easier to give control of some routes to the local transport interests.
Training and driver rostering could be retained in what was left of Northern Trains.
Tram-Trains
Tram trains would be an added complication, but as the South Wales Metro is showing, tram-trains are an interesting way of expanding a network.