The Wires Are Completed At Bolton
I took these pictures as I changed trains at Bolton station.
According to this article on Rail News, which is entitled Final Test Train Runs On Electrified Preston Line, the Manchester-Preston line has passed all the tests to allow Class 319 trains to run at 100 mph.
They also hope, that 100 mph running will start in May.
Stalybridge Station – 22nd February 2019
I took these pictures, when I visited Stalybridge station earlier this year.
Note that there appears to be no electrification.
But there is an extremely good real ale hostelry.
Would Batteries Help Voltage Change-over In A Dual Voltage Train Or Tram-Train?
Battery Power And Tram-Trains
Consider.
- The Class 399 tram-trains in Sheffield can work on both 25 KVAC and 750 VDC overhead electrification.
- Their German cousins in Karlsruhe can work on both 15 KVAC and 750 VDC overhead electrification.
In Karlsruhe, there is a ceramic rod between the two overhead cables with different voltages and the pantograph rides across. I suspect that clever power electronics on the tram-train measures the voltage and converts it automatically to that needed to power the tram-train.
I haven’t been able to see how Sheffield connects the two different voltages, but I wouldn’t be surprised if a similar system with a ceramic rod is used.
Look at this picture, I took of a Class 399 tram-train in Sheffield.
Note the BATTERY CHARGE socket to the left of the car number.
Why would an electrically-powered vehicle need a battery?
I suppose it could be to start up the tram-train in the morning and raise the pantograph.
But could it also be for emergency power, to move the tram-train short distances, such as in depots or to assist the vehicle through the dead sections, where the power supply changes from one voltage to another?
The Class 399 tram-trains ordered for the South Wales Metro will also have to cope with discontinuous electrification. So is the technology needed for this already installed in the tram-trains in Sheffield?
Battery Power And Dual Voltage Trains
Suppose you have a train like a Class 378 or Class 700 train, that can run on both 25 KVAC overhead and 750 VDC third-rail electrification.
Third-rail trains with contact shoes deal with discontinuous electrification all the time.
If a dual-voltage train had a battery that could take it say two hundred metres, then I believe that voltage changeover could be simplified and speeded up.
I have watched Class 717 trains change voltage at Drayton Park station and what changes would a limited battery capability make.
The third-rail electrification would stop several metres short of the station and would be removed in the station itself.
Going towards Moorgate, this would be the procedure.
- The train would stop in the station as it does now.
- The driver would drop the pantograph, whilst passengers unloaded and loaded.
- The driver would close the doors.
- The train would accelerate away on battery power.
- After a few metres the train would contact the third-rail and the train’s computer would change from battery to third-rail power.
Going away from Moorgate, this would be the procedure.
- The train would automatically disconnect from third-rail power, where that stopped to the South of the station.
- The train would automatically switch to battery power.
- The train would stop in the station as it does now.
- The driver would raise the pantograph, whilst passengers unloaded and loaded.
- The driver would close the doors.
- The train would accelerate away on overhead power.
The stops should be no longer, than a normal station stop without power changeover.
Conclusion
Batteries may well reduce the time taken to change voltage
The Electrification Between Lea Bridge And Meridian Water Stations Is Almost Complete
I took these pictures from a train going North from Lea Bridge station to the new Meridian Water station.
It appears that most of the electrification is almost complete, except for perhaps a hundred metres at the Southern end.
Conclusion
This electrification seems to have gone reasonably well so far.
On the other hand, the electrification of the Gospel Oak to Barking Line was troublesome with various components being wrongly made and the discovery of an unknown sewer.
But the electrification of the new single track was effectively working on a new track, where what was underneath the track was very well known.
I’m drawn to the conclusion, that if we want to electrify a railway, the quality of the knowledge of the tracks to be electrified has a strong influence on the outcome of the project.
If there are thought to be too many unknowns and it is felt necessary to relay the track, then so be it!
We may have the paradox that to electrify a 125 mph fast line like the Midland Main Line, which has had top class care and constant speed upgrades, may be easier and more affordable, than to electrify a slower commuter line like Manchester to Preston, which has probably not had as much attention, due to the slower speeds.
I know it’s totally different, but decorating a new house is easier than doing the same to an old one!
Electrification of a railway track seems to have a similar relationship.
Could A Class 399 Tram-Train With Batteries Go Between Manchester Victoria And Rochdale/Bury Bolton Street/Rawtenstall Stations?
In Rossendale Reopening Prospect, I looked at a proposal to run a new service between Manchester Victoria and Bury Bolton Street stations.
Could this route be run by a Class 399 tram-train with a battery capability?
These tram-trains would be very similar to the Stadler Citylink Metro Vehicles, that have been specified for the South Wales Metro.
- Wikipedia gives the weight of the vehicle as 66 tonnes.
- Manchester Victoria has an altitude of 44 metres
- Bury has an altitude of 100 metres.
- Rochdale has an altitude of 137 metres.
- Rawtenstall has an altitude of 174 metres.
- I will assume 200 passengers at 90 Kg. each, which gives a weight of 12 tonnes.
Using Omni’s Potential Energy Calculator gives the following.
- Manchester Victoria to Bury Bolton Street has an increase in potential energy of 12 kWh.
- Manchester Victoria to Rochdale has an increase in potential energy of 20 kWh.
- Manchester Victoria to Rawtenstall has an increase in potential energy of 28 kWh.
When you consider that a Class 230 train has 400 kWh of batteries in a two-car train, I don’t think that there will be any problem fitting batteries big enough to take a Class 399 tram-train from Manchester Victoria to Bury Bolton Street, Rochdale or Rawstenstall stations under battery power with a full load of passengers.
- The batteries would be charged in Manchester Victoria station.
- Returning to Manchester Victoria station would use a small amount of battery power, with some assistance from Newton’s friend; gravity.
- The batteries would get a certain amount of charge from the regenerative braking of the tram-trains.
This Google Map shows the Eastern approaches into Manchester Victoria station.
Note.
- The four through platforms numbered 3 to 6.
- The two bay platforms numbered 1 and 2.
- The four platform faces and three tracks of the Metrolink.
Having seen several tram-train systems all over Europe, I believe it would be possible to connect tram-trains running on batteries on the Calder Valley Line to the Manchester Metrolink at Manchester Victoria station.
- Going from Manchester to Bury Bolton Street, Rochdale or Rawtenstall, the tram-train would stop in the Manchester Victoria tram-stop, drop the pantograph and then continue on its way under battery power.
- Returning from the North, the tram-train would stop in the Manchester Victoria tram-stop, raise the pantograph and then continue on its way using power from the overhead wires.
- Batteries would be charged whilst running through Manchester.
There couldn’t be too many tram-train systems that would be easier to build than this?
It is interesting to note that Hebden Bridge station is just twenty-three miles from Manchester Victoria station and has an altitude of 190 metres.
So would it be possible for a Class 399 tram-train to reach Hebden Bridge station on battery power? I very much think it would be!
Class 399 Tram-Trains And Class 156 Trains
Class 156 trains are one of the better workhorses of the railways in the North and despite their age, they scrub up well.
If their performance is compared to that of a Class 399 tram-train, they are not that different.
- Noise and vibration of the electric tram-train is obviously much lower.
- The modern interior of the tram-train is geared to the needs of passengers.
- Passenger capacity of the two vehicles is also about the same.
- In Karlsruhe, tram-trains travel for up to 100 miles from the centre of the city.
Both Karlsruhe and Sheffield use three-car tram-trains, but Valencia uses much longer ones, so on heavily-used routes larger tram-trains could be used.
I doubt there would be many complaints, if a Class 156 service were to be replaced with one run by Class 399 tram-trains.
Electrification Of The Calder Valley Line
Electrifying the Calder Valley Line with 25 KVAC overhead wires as far as Rochdale station, would certainly make running to Hebden Bridge station possible.
- That electrification would also mean that electric trains could be turned-back at Rochdale station, just as diesel trains are now!
- I have flown my helicopter along the route and it looks like of the seven or eight bridges on the route, mostly appear to be modern structures for new roads or motorways.
- As 25 KVAC overhead electrification is currently being erected between Manchester Victoria and Stalybridge, a spur to Rochdale would be very much a simple addition.
It could be a very useful short length of electrification.
Tram-Trains In Manchester
This article on Rail Technology Magazine was puiblished yesterday and is entitled Plans For Tram-Trains In Manchester Unveiled As Grayling And Burnham Mull Expansion Of Metrolink.
Conclusion
Could we see tram-trains running from Bury Bolton Street, Hebden Bridge, Rawtenstall and Rochdale into Manchester Victoria and then taking to the existing tram network?
If you’ve ever been to Karlsruhe, as I have to see the Class 399 tram-trains German cousins, you wouldn’t rule out anything.
That would include tram-train services to Blackburn, Buxton, Chester, Glossop, Hebden Bridge, Sheffield, Southport and Wigan.
Infrastructure Delays Force Northern To Soldier On With Pacers
The title of this post is the same as that of this article on Rail Magazine.
This is the first paragraph.
Forty-six Pacers remained in traffic with Northern at the start of January, after they were supposed to have been sent off-lease.
Northern are saying they are still in service because of delays in the delivery of the electrification through Bolton, which would have allowed the replacement of Pacers with electric trains.
The situation has not been helped by the late delivery of eight Class 769 trains, which could be running partially-electrified routes.
The Class 331 trains should also be arriving this year.
As there are also some more Class 319 trains in store, it does look like Northern’s blaming of the late electrification is on the mark.
The New Track Through Tottenham Hale Station Looks Complete
I took these pictures of the third track through Tottenham Hale station yesterday.
It appears to be substantially complete, although there is no catenary under Ferry Lane bridge.
Two days later, there was an engineering train on the new track.
The project does appear to be progressing.
Axed Rail Routes May Be Reopened Under New Department for Transport Plans
The title of this post is the same as that on this article on Sky News.
This is the first two paragraphs.
The Department for Transport has confirmed it is actively working with a number of groups to explore the possibility of reopening old rail routes, axed under the so-called Beeching cuts of the 1960s.
It follows a call by Transport Secretary Chris Grayling a year ago, encouraging those in the public and private sector to submit proposals for potential projects to regenerate old lines.
It also quotes a Department of Transport spokesman.
This is on top of exploring reopening the Northumberland Line for passenger use, supporting the reinstatement of stations on the Camp Hill Line, developing new rail links to Heathrow and a new station at Cambridge South
He apparently, didn’t say more because of confidentiality.
The article then talks about the success of the Borders Railway in Scotland.
So is this just a good news story for Christmas or is there a plan to reopen old railway lines?
I feel that a several factors are coming together, that make the reopening of railway lines and the creation of new ones more likely.
Digital Signalling
Signalling is expensive, but where you have rolling stock to a high modern standard, with digital in-cab signalling, does this mean that new or reopened rail lines can be built without conventional signalling?
In addition, installing digital signalling on some routes, would probably make it easier to add a new station. Surely, it must just be a reprogramming of the route!
It could be a problem that, I would expect that on a digitally-signalled line, all trains must be capable of using it. But in many areas of the country, like East Anglia, these routes will be run by new trains.
Digital signalling must also make it easier to design more efficient single-track railways, with perhaps a passing loop to allow higher frequencies.
More Efficient Track Construction
Network Rail and their contractors and suppliers are getting better and more efficient at building track and bridges through difficult terrain and places, judging by some of their construction in recent years, such as the Acton Dive-Under and the Ordsall Chord. They have also overseen some notable successes in the refurbishment of viaducts and tunnels.
It should also be noted that the reopening of the Borders Railway was a successful project in terms of the engineering and was completed on budget and on time.
According to Wikipedia, though there was criticism of the infrastructure.
This is said.
The line’s construction has been described as resembling a “basic railway” built to a tight budget and incorporating a number of cost-saving features, such as using elderly two-carriage diesel trains and running the line as single track.
But looking back on the line from over three years since it opened, it has certainly been judged by many to be an undoubted success.
Would it have had the same level of success, if it had been built as a double-track electrified railway?
Single-Track Lines
The Borders Railway is a good example of an efficient single-track railway, that runs a half-hourly service.
Other routes like the East Suffolk Line and the Felixstowe Branch Line, show how good design can handle more than the most basic levels of traffic, with perhaps selective double track or a well-placed passing loop.
They may be dismissed by rail purists as basic railways, but when well-designed, they are able to provide the service that is needed along the route, for a construction cost that is affordable.
I would though advocate, that if a new single-track railway is built, that provision is made where possible to be able to add the second track. But not at too great an expense or to provide a service level that will never be needed.
I believe that good design of a new railway can cut the construction cost by a fair amount.
Single-Platform Stations
Several of the new stations built in recent years have been stations with only a single-platform.
- Cranbrook – A station in Devon on the West of England Main Line to serve a new housing development.
- Ebbw Vale Parkway – A parkway station in Ebbw Vale.
- Galashiels – A station, that handled 356,000 passengers last year. It is a unique station on a narrow site, that shares facilities with a large bus station on the other side of the road. It is a very functional transport interchange.
- James Cook – A basic but practical station, that serves the hospital in Middlesbrough. – It cost just over £2million in 2014.
- Newcourt – A £4million station handling over 100,000 passengers per year.
- Pye Corner – A basic station in Newport handling nearly 100,000 passengers per year.
The stations have several common characteristics.
- They can all handle at least a four-car train.
- The single-platform is used for services in both directions.
- Disabled access is either level or by a gently-sloping ramp.
Only James Cook station has a footbridge over the track.
These single-platform stations must cost less, as for instance a footbridge with lifts costs upwards of a million pounds.
Note that of the nine stations on the Borders Railway only three have two platforms.
Single-Platform Terminal Stations
There are also several terminal stations in the UK with only one platform.
- Aberdare – Handling over 500,000 passengers per year.
- Aberystwyth – Handling around 300,000 passengers per year.
- Alloa – Handling around 400,000 passengers per year.
- Aylesbury Vale Parkway – Handling over 100,000 passengers per year.
- Blackpool South – Handling over 100,000 passengers per year.
- Exmouth – Handling nearly a million passengers per year.
- Felixstowe – Handling around 200,000 passengers per year.
- Henley-on-Thames – Handling around 800,000 passengers per year.
- Marlow – Handling nearly 300,000 passengers per year.
- Merthyr Tydfil – Handling around 500,000 passengers per year.
- North Berwick – Handling around 600,000 passengers per year.
- Redditch– Handling over a million passengers per year.
- Seaford – Handling over 500,000 passengers per year.
- Shepperton – Handling around 400,000 passengers per year.
- Sheringham – Handling around 200,000 passengers per year.
- Walton-on-the-Naze – Handing around 130,000 passengers per year
- Windsor & Eton Central – Handling nearly two million passengers per year.
Many of these stations have only a single hourly train. whereas Redditch and Windsor & Eton Central stations have three trains per hour (tph).
As a single terminal platform can probably handle four tph, I suspect that most terminals for branch lines could be built with just a single platform.
No Electrification
Chris Grayling has said that the East West Rail Link will be built without electrification.
I wasn’t surprised.
- Network Rail has a very poor performance in installing electrification.
- There have been complaints about the visual intrusion of the overhead gantries.
- Electrification can cause major disruption to road traffic during installation, as bridges over the railway have to be raised.
In addition, I’ve been following alternative forms of low- or zero-carbon forms of train and feel they could offer a viable alternative
Bi-Mode, Hydrogen And Battery-Electric Trains
When the Borders Railway was reopened, unless the line had been electrified, it had to be run using diesel trains.
But in the intervening three years, rolling stock has developed and now a new or reopened railway doesn’t have to be electrified to be substantially served by electric trains.
- Bi-Mode trains are able to run on both diesel and electric power and Hitachi’s Class 800 trains are successfully in service. They will be shortly joined by Porterbrook’s innovative Class 769 trains.
- Hydrogen-powered trains have already entered service in Germany and they are being developed for the UK.
- Battery-electric trains have already been successfully demonstrated in the UK and will enter service in the next few years.
All of these types of train, will be able to run on a new railway line without electrification.
Bi-mode trains are only low-carbon on non-electrified lines, whereas the other trains are zero-carbon.
The trains on the Borders Railway must be prime candidates for replacement with hydrogen-powered or battery-electric trains.
Adding It All Up
Adding up the factors I have covered in this section leads me to conclude that rail developments over the last few years have made it possible to create a new railway line with the following characteristics.
- An efficient mainly single-track layout.
- Single-platform stations.
- A single-platform terminal station capable of handling well upwards of a million passengers per year.
- Service levels of up to four trains per hour.
- Zero-carbon operation without electrification.
- Low levels of visual and noise intrusion.
The new railway will also be delivered at a lower cost and without major disruption to surrounding road and rail routes.
The Need For More Housing And Other Developments
There is a very large demand for new housing and other developments all over the UK.
Several proposed rail projects are about connecting new developments with the rail network.
In London Overground Extension To Barking Riverside Gets Go Ahead, I listed a few developments in London, where developers and their financial backers, were prepared to put up around £20,000 for each house to fund decent rail-based transport links.
Obviously, developments in London are expensive, but with all the new developments, that have been built close to stations in the last few years, I suspect that infrastructure financiers. like Legal and General and Aviva, know how much being by a rail station is worth.
Conclusion
Both public and private infrastructure financiers will take advantage of the good railway and rolling stock engineering, which will mean the necessary rail links to new developments will be more affordable and zero-carbon.
Nervous Operators Force Network Rail To Defer King’s Cross Plan
The title of this post is the same as that of this article on Rail Magazine.
King’s Cross station has to be closed for three months, so that tracks, electrification and signalling can be replaced and modernised for about 1.5 miles from the buffer stops at the station.
The original dates of the closure were to have been between December 2019 and March 2020, but now it looks like it could be delayed by up to a year.
The article on the web site, is a shortened version of the article in the magazine, where this is said.
Closure dates have yet to be announced, and NR is still developing a passenger handling strategy which could include long-distance services at Finsbury Park or some services terminating at Peterborough. Some trains could even be rerouted into London Liverpool Street.
I wonder, if Network Rail’s planners are cursing that the around thirty miles between Peterborough and Ely is not electrified.
If it were electrified, it would allow electric trains as well as diesel and bi-mode trains to access Liverpool Street station via the West Anglia Main Line.
What Benefits Would There Be From Electrifying Peterborough To Ely?
I can imagine Oxford-educated civil servants in the Department of Transport and The Treasury dismissing calls for more electrification in the backwater of East Anglia, after the successful electrification to Norwich in the 1980s.
But now Cambridge is powering ahead and East Anglia is on the rise, with the massive Port of Felixstowe needing large numbers of freight trains to other parts of mainland UK.
This East Anglian success gives reasons for the electrification of the Peterborough-Ely Line.
Direct Electric Trains Between Peterborough And Cambridge
I have met Cambridge thinkers, who believe that Peterborough is the ideal place for businesses, who need to expand from Cambridge.
Peterborough has the space that Cambridge lacks.
But the transport links between the two cities are abysmal.
- The A14 is only a two-lane dual-carriageway, although a motorway-standard section is being added around Huntingdon.
- Peterborough station has been improved in recent years.
- The direct train service is an hourly three-car diesel service between Birmingham and Stansted Airport, which doesn’t stop at the increasingly-important Cambridge North station.
The road will get better, but the rail service needs improvement.
- There needs to be at least two direct trains per hour (tph) between Cambridge and Peterborough.
- They would stop at Cambridge North, Waterbeach, Ely and March.
- End-to-end timing would be under an hour.
- Greater Anglia will have the four-car bi-mode Class 755 trains, which would be ideal for the route from next year.
If the Peterborough- Ely Line was electrified, Greater Anglia could use five-car Class 720 trains.
An Electric Diversion Route For The East Coast Main Line
The works at Kings Cross station, and the possible proposal to run some trains into Liverpool Street station, show that an electric diversion route would be useful, when there are closures or problems on the East Coast Main Line.
In the case of the Kings Cross closure, if Peterborough were to be used as the terminal for some trains from the North, then I suspect some high-capacity Class 800 trains could shuttle passengers to Liverpool Street.
If the date of the Kings Cross closure is 2020, then certain things may help.
- Crossrail will be running.
- Extra trains will be running from Finsbury Park to Moorgate.
- Hull Trains will be running bi-mode Class 802 trains.
- There could be more capacity on the West Anglia Main Line.
- There could be more capacity and some longer platforms at Liverpool Street.
What would really help, is the proposed four-tracking of the West Anglia Main Line.
The latter could prove extremely useful, when Network Rail decide to bite the bullet and four-track the Digswell Viaduct.
Extending Greater Anglia’s Network
Greater Anglia have bought new bi-mode Class 755 trains.
This would appear to be more than enough to covering the current services, as they are replacing twenty-six trains with a total of fifty-eight coaches with thirty-eight trains with a total of one hundred and thirty-eight coaches.
That is 46 % more trains and 137 % more coaches.
The new trains are also genuine 100 mph trains on both electricity and diesel.
Obviously, Greater Anglia will be running extra services, but with the explosive growth around Cambridge, coupled with the new Cambridge North station, I feel they will be running extra services on the Peterborough to Cambridge route and perhaps further.
The new Werrington Grade Separation will make a difference.
- It will open in a couple of years.
- Trains between Peterborough and Lincoln won’t block the East Coast Main Line.
- The Leicester route could also be improved.
So services to and from Lincoln and Leicester would probably be easier to run from Cambridge and Stansted Airport.
CrossCountry run a service between Birmingham New Street and Stansted Airport stations.
- The service stops at Coleshill Parlway, Nuneaton, Leicester, Melton Mowbray, Oakham, Stamford, Peterborough, March, Ely and.Cambridge and Audley End stations.
- The service doesn’t stop at Cambridge North station.
- The service is run by an inadequate Class 170 train, which sometimes is only two coaches and totally full.
- Trains take just over three hours ten minutes for the journey.
Will Greater Anglia take over this route? Or possibly run a second train as far as Leicester?
Their Class 755 trains with better performance and specification would offer the following.
- Electric running between Ely and Stansted Airport stations.
- Greater passenger capacity.
- wi-fi, plugs and USB sockets.
- A three hour journey both ways.
- The extra performance would probably allow an extra important stop at Cambridge North station.
The new trains would certainly offer what passengers want.
CrossCountry run an extra train between Birmingham New Street and Leicester, so perhaps at the Western end, the Greater Anglia service need only go as far as Leicester.
At the Stansted end of the route, there will be an hourly train between Stansted Airport and Norwich, so there could be scope for perhaps cutting one the services back to Cambridge.
Obviously, time-tabling would sort it out to the benefit of the train operators and passengers, but I can envisage a set of services like this.
- Norwich and Stansted Airport – Greater Anglia – 1 tph
- Birmingham New Street and Stansted Airport – CrossCountry – 1 tph
- Leicester and Cambridge – Greater Anglia – 1 tph
- Colchester and Peterborough – 1 tph
- Norwich and Nottingham (Currently Liverpool Lime Street) – 1 tph
Adding these up you get.
- Stansted Airport and Cambridge – 2 tph – As now!
- Stansted Airport and Cambridge North – 2 tph – New service!
- Cambridge and Ely – 4 tph – At least!
- Ely and Peterborough – 4 tph – At least!
- Cambridge and Peterborough – 2 tph – Up from 1 tph
- Stansted Airport and Peterbough – 1 tph – As now!
- Cambridge and Leicester – 2 tph = Up from 1 tph.
This pattern or something like it would be much better for all.
If the Ely-Peterborough section of the were to be electrified then it would enable the following.
- A reduced journey time for electric or bi-mode trains.
- If required Greater Anglia could run an extra electric service using Class 720 trains between Stansted Airport and Peterbough.
I said earlier that the Werrington Grade Separation will make it easier to run services between Peterborough and Lincoln.
So why not add an hourly service between Cambridge and Lincoln?
I can envisage, when the West Anglia Main Line is four-tracked at the southern end, that there might be enough capacity for a Liverpool Street to Lincoln service via Cambridge, Cambridge North, Ely, Peterborough, Spalding and Sleaford.
But whatever happens Greater Anglia’s choice of bi-mode Class 755 trains, seems to give them the flexibility to match services to passengers needs.
Electro-Diesel and Battery-Electric Freight Locomotives
The Class 88 locomotive is an electro-diesel freight locomotive, that can use either power from overhead electrification or an pnboard diesel engine.
I believe that locomotives like this will become more common and that eventually, we’ll see a battery-electric heavy freight locomotive.
I wrote about the latter in Thoughts On A Battery/Electric Replacement For A Class 66 Locomotive.
The Peterborough-Ely Line will see increasing numbers of trains hauled by these powerful electric locomotives, with either diesel or battery power to propel them over the gaps in the electrification.
Electrifying the line would speed these hybrid trains through and increase the capacity of the route.
Conclusion
Network Rail have annoyed the train operators with their planning and timing of the upgrade at Kings Cross station.
It looks to me, that the part of the problem, is that there is no viable electrified secondary route to London.
Bi-mode trains can use the Peterborough-Ely Line to go to Liverpool Street via Cambridge.
This line is one of those routes that sits in a sea of electrification, which carries a lot of traffic, that would bring several benefits if it were to be electrified.
- Direct electric trains between Cambridge and Peterborough, would greatly improve the spasmodic service between the two cities, with large economic benefits to the county.
- An electric diversion route would be created from Peterborough to Liverpool Street via Ely and Cambridge.
- It would allow Greater Anglia to develop routes West of Cambridge to places like Lincoln and Leicester using their future fleet of Class 755 trains.
- It would also make it easier for battery-electric freight locomotives to cover the busy freight route between Felixstowe and Peterborough.
I also feel that it wouldn’t be the most difficult route to electrify.
The Fens are flat.
There is no history of mining.
The track is fairly straight and simple.
I suspect that it could become a high-quality 90-100 mph, electrified line.
With
Thoughts On A Battery/Electric Replacement For A Class 66 Locomotive
Many of the long freight routes from Felixstowe and Southampton are hauled by diesel locomotives like the environmentally-unfriendly Class 66 locomotive.
Electric haulage can’t be used because of significant gaps in the 25 KVAC overhead electrification. Gaps and a typical transit time of a Class 66-hauled heavy freight train include.
- Didcot and Birmingham – Around two-and-a-half hours
- Didcot and Coventry – Just under two hours
- Felixstowe and Ipswich – Around an hour
- Haughley Junction and Peterborough – Around two hours
- Southampton and Reading – Around one-and-a-half hours
- Werrington Junction and Doncaster via Lincoln – Around two hours
- Werrington Junction and Nuneaton – Just under two hours
Would it be possible to design a battery/electric hravy locomotive, that could bridge these gaps?
Consider the following.
- A Class 66 locomotive has a power output of around 2500 kW.
- To run for two hours on battery would require a battery of 5000 kWh.
- A 5000 kWh battery would weigh around fifty tonnes. But battery energy densities are getting higher, which would reduce the weight.
- A Class 70 locomotive is a heavy freight diesel Co-Co locomotive with a weight of 134 tonnes with a full tank of diesel.
- A Class 88 locomotive is an electro-diesel locomotive, that without the diesel engine weighs about 80 tonnes.
- A Class 88 locomotive has a power output of 4,000 kW on 25 KVAC overhead electrification
Putting this information together and I think it would be possible to design a battery/electric locomotive with the following specification.
- 4000 kW on 25 KVAC overhead electrification
- Ability to use 750 VDC third-rail electrification
- Ability to change between running on electrification and battery in under a minute and at line speed.
- A 5000 kWh battery.
- Ability to charge the battery, when connected to electrification.
- Ability to use a rapid charging system.
- Two hour range with 2500 kW on battery power.
- Regenerative braking to the battery.
- Co-Co configuration
- Dimensions, weight and axle loading similar to a Class 70 locomotive.
These are a few other thoughts.
Passing Loops With Charging Stations
Passing loops are often provided for freight trains, so that passenger trains can pass a slow freight train. So why not fit these loops with a charging station, so that trains can stop for say twenty minutes to charge or top up the batteries?
Electrification Islands
There are places, where it would be easy to create, what is best described as an electrification island.
I describe electrification islands in The Concept Of Electrification Islands.
Last Mile Applications
Ports and Container Terminals are often without electrification.
The proposed locomotive would be able to work in these environments.
A couple of yeas ago, I had a long talk with a crane operator at the Port of Felixstowe, who I met on a train going to football. He was of the opinion, that Health and Safety is paramount and he would not like 25 KVAC overhead electrification all over the place. Containers do get dropped!
So if freight locomotives used battery power inside the port, most would be pleased.
The only cost for ports and freight terminals would be installing some form of charging.
Maximum Power On Batteries
I suspect that the maximum power on battery would also be the same as the 4,000 kW using 25 KVAC overhead electrification, as the locomotive may have applications, where very heavy trains are moved on partially electrified lines.
Diesel-Free Operation
The proposed locomotive will not use any diesel and will essentially be an electric locomotive, with the ability to use stored onboard power.
Environmentally-Friendly Operation
Freight routes often pass through areas, where heavy diesel locomotives are not appreciated.
- The proposed locomotive will not be emitting any exhaust or noxious gases.
- Noise would be similar to an electric locomotive.
- They would be quieter using battery-power on lines without overhead electrification, as there would be no pantograph noise.
I think on balance, those living by freight routes will welcome the proposed locomotive.
Would Services Be Faster?
This would depend on the route, but consider a heavy freight train going from Felixstowe to Leeds.
- On the electrified East Coast Main Line, the proposed battery-electric locomotive would have a power of 4,000 kW, as opposed to the 2,500 kW of the Class 66 locomotive.
- On sections without electrification, the locomotive would have more power if required, although it would probably be used sparingly.
- The locomotive would have a Driver Assistance System to optimise power use to the train weight and other conditions.
I feel on balance, that services could be faster, as more power could be applied without lots of pollution and noise.
Creeping With Very Heavy Loads
I suspect they would be able to creep with very heavy loads, as does the Class 59 locomotive.
Class 59 Locomotive Replacement
The proposed locomotive may well be able to replace Class 59 locomotives in some applications.
Any Extra Electrification Will Be Greatly Appreciated
Some gaps in electrification are quite long.
For example, Didcot and Birmingham takes about two and a half hours.
- Didcot is on the electrified Great Western Main Line.
- Birmingham has a lot of electrified lines.
So perhaps there could be some extra electrification at both ends of busy freight routes.
Electrification between Didcot and Wolvercote Junction would be a possibility.
- It would be about twelve miles
- It is very busy with heavy freight trains.
- The natives complain about the railway.
- It would allow Great Western Railway to run electric trains to and from London.
- If Chiltern Railways were to run battery-electric trains to Oxford, it would provide electrification for charging at Oxford.
- Electrification could be extended to Oxford Parkway station to make sure battery-electric trains would get a good send-off to Cambridge
This simple example shows, why bi-mode and battery/electric trains don’t mean the end of electrification.
All vehicles; rail or road and especially electric ones, need to take on fuel!
I also think, that there is scope to electrify some passing loops, so that locomotives can top-up en route.
Conclusion
It would be a heavyweight locomotive with a performance to match.
I believe that such a locomotive would be a very useful addition to the UK’s fleet of freight locomotives.
The Anonymous Widower 