Speeding Down To Bristol By Train
On Wednesday, I went to Bristol to take a few photographs.
I took these pictures, where the electrification ran out at Chippenham station.
There is some half-hearted erection of electrification going on between Chippenham station and Box Tunnel, but despite the fact, that the iconic tunnel is ready for wires, construction work seemed noticeable by its absence.
Line Speed Observations
I had my personal dynamometer car connected for much of the journey.
- Between Southall and Slough we were at times running at only a few miles short of 130 mph. Are Great Western Railway starting to wind up the speed.
- Most of the journey, when well clear of stations, we were at around 125 mph until Chippenham station.
- At Chippenham, it was noticeable that the diesel engine under my seat kicked in.
- Onwards from Chippenham, we were at around 100 mph on diesel.
I suspect that London and Bristol services could be improved and/or speeded up.
- Timings could be reduced between London Paddington and Reading by running at faster speeds under digital ERTMS signalling. The train certainly felt comfortable at 128 mph.
- Any increase in electrification past Chippenham station will increase the the reach of a Class 800 train with a battery capability on a mile-for-mile basis.
- Trains should be able to increase speed towards 125 mph for some of the twelve miles between Chippenham and Bath Spa stations.
- As trains would not be swapping between diesel and electricity in Chippenham station, would panning up and down happen automatically further West?
- It might be possible to fit in a third London Paddington and Bristol service, that doesn’t stop at Chippenham station.
None of these improvements would need the line through Bath Spa station to be electrified.
Bristol Temple Meads Station – 28th July 2020
I took these pictures of Bristol Temple Meads station, when I visited.
Note.
- The station is Listed to the highest level of Grade 1.
- London services seem to use Platforms 15 and 16.
- There is quite a fair bit of space between the tracks.
.Do Network Rail need all the hassle of full electrification of one of Brunel’s most famous creations?
Bristol Temple Meads Station And Trains With a Battery Capability
Hitachi’s Class 800 train with a battery electric capability or Regional Battery Train, is described in this infographic from the company.
The proposed 90 km or 56 mile range would even be sufficient take a train between Chippenham and Bristol Temple Meads stations on a return trip. So this means that one of these trains could work the London Paddington and Bristol Temple Meads stations service via Bath Spa using the electrification between London Paddington and Chippenham stations.
But where could trains reach, if they were able to leave Bristol Temple Meads station with a fully-charged battery?
- Bristol Parkway – 6 miles
- Cardiff Central – 5 miles to the electrified Great Western Main Line.
- Cheltenham Spa – 41 miles
- Filton Abbey Wood – 4 miles
- Gloucester – 39 miles
- Newport – 5 miles to the electrified Great Western Main Line.
- Severn Beach – 13.5 miles
- Taunton – 45 miles
- Westbury – 28.5 miles
- Weston-super-Mare – 19 miles
Note.
- Return trips to Bristol Parkway, Filton Abbey Wood, Severn Beach and Western-super-Mare would be possible.
- The other destinations will need charging facilities.
Other local destinations could be added as the Bristol Metro develops.
This Google Map shows the station.
Note.
- The curving nature of the platforms doesn’t make 25 KVAC overhead electrification easy.
- Trains to and from London appear to use the two Eastern platforms 13 and 15.
- It might be possible to increase platform lengths to run longer trains to and from places like London.
I believe that there are three possible ways of charging the trains in Bristol Temple Meads station.
25 KVAC Overhead Electrification
This could be short length of standard 25 KVAC overhead electrification in platforms, that would be served by trains with pantographs like the Class 800 trains.
The driver would stop in the correct place in the platform and connect the pantograph, whilst waiting in the station.
Note that the Class 800 trains to and from London typically take 35-20 minutes to turn round, which is time enough for a full charge.
750 VDC Third-Rail Electrification
This could be short lengths of standard 750 VDC third-rail electrification in platforms, that would be used by standard third-rail shoes on trains.
The train would connect automatically and charging would take place, whilst waiting in the station.
A Specialist Charging Facility Like Vivarail’s Fast Charge System
Vivarail’s Fast Charge system is described in Vivarail Unveils Fast Charging System For Class 230 Battery Trains.
This extract from this Vivarail press release explains how the system works.
he concept is simple – at the terminus 4 short sections of 3rd and 4th rail are installed and connected to the electronic control unit and the battery bank. Whilst the train is in service the battery bank trickle charges itself from the national grid – the benefit of this is that there is a continuous low-level draw such as an EMU would use rather than a one-off huge demand for power.
The train pulls into the station as normal and the shoe-gear connects with the sections of charging rail. The driver need do nothing other than stop in the correct place as per normal and the rail is not live until the train is in place.
That’s it!
I believe that this system or something like it could be adapted to work with all trains with a battery capability in the UK.
I also believe that this system can be designed so that it is ultra-safe and doesn’t disrupt, the visual impact of the station.
Conclusion
Bristol Temple Meads station could be converted into a station, where a high proportion of trains ran solely on electricity.
Bath Spa Station – 28th July 2020
I took these pictures as I twice passed through Bath Spa station.
These are my thoughts.
Electrification Gantries On The Platforms
As somebody, whose eyesight is on the wane, I am not a lover of electrification, where the gantries are bolted to the platforms. These pictures show some installations of this type at Crouch Hill station.
Would electrification gantries like these, be appropriate in Bath Spa station?
Could Lightweight Electrification Gantries Be Placed Between The Tracks?
These pictures show the wide gap between the two tracks in Bath Spa station.
Could double-track lightweight structures, based on a design like this be placed between the tracks?
These structures are made out of laminated wood and are surely a possibility.
A Makeover For Bath Spa Station
If you look at much of the woodwork and paint in the fabric of the station, it appears tired and in need of refurbishment.
Whether the station is electrified or not, the station will need a high-class makeover.
Services Through Bath Spa Station
Three train companies run services through Bath Spa station.
- CrossCountry which only operates diesel trains.
- Great Western Railway operates Class 800 electro-diesel trains and some assorted diesel trains.
- South Western Railway only operates Class 159 diesel trains.
There are also some freight services hauled by diesel locomotives.
Trains leave Bath Spa station using one of three routes via either.
- Bristol Temple Meads station, which is 11.5 miles away without electrification.
- Chippenham station, which is where the electrification to London starts and is 13 miles away.
- Westbury station, which is on the Reading and Taunton Line and 17 miles away without electrification.
Most trains seem to go via Bristol Temple Meads station.
- The distance between Bristol Temple Meads and Chippenham stations are 24.5 miles.
- The distance between Bristol Temple Meads and Westbury stations are 28.5 miles.
Neither distance is that long.
An Alternative To Full Electrification
When I look at the distances between Bristol Temple Meads, Chippenham and Westbury stations, they tell me that they are within the range of Hitachi’s Class 800 train with a battery electric capability or Regional Battery Train, which is described in this infographic from the company.
The proposed 90 km or 56 mile range would even be sufficient take a train between Chippenham and Bristol Temple Meads stations on a return trip.
Notes for each station follow.
Bristol Temple Meads
Charging facilities would be needed.
Destinations in battery range would include.
- Bristol Parkway – 6 miles
- Cardiff Central – 5 miles to the electrified Great Western Main Line.
- Cheltenham Spa – 41 miles
- Gloucester – 39 miles
- Taunton – 45 miles
- Weston-super-Mare – 19 miles
Note.
- Return trips to Bristol Parkway and Western-super-Mare would be possible.
- The other destinations will need charging facilities.
Bristol Temple Meads station could become a major hub for battery trains.
All local services and all passing longer distance services could be trains with a battery capability.
I write more about Britol Temnple Meads station as a battery train hub in Bristol Temple Meads Station – 28th July 2020.
Chippenham
A train would leave Chippenham station with a full battery after charging on the fully-electrified route from London.
Chippenham and Weston-super-Mare would be in battery range with a charging facility at Weston-super-Mare station.
It should be noted that every extra mile of electrification past Chippenham, can be added to the distance electric trains with a battery capability can reach.
Westbury
Charging facilities would be needed.
Destinations in battery range would include.
- Salisbury – 24 miles.
- Southampton – 49 miles to the electrified South Western Main Line, at Southampton Central station.
- Weymouth – 53 miles to the electrified South Western Main Line at Dorchester Junction.
Note.
- A return trip to Salisbury would be possible.
- Trains would need to have the capability to access 750 VDC third-rail electrification.
- A few extra miles of electrification may make operation South from Westbury station easier, more reliable and allow more destinations to be included.
Westbury station could be a major hub for battery trains.
This Google Map shows Westbury station and the lines around it.
I would probably electrify a few miles either side of Westbury, so that passing trains could be in contact with the overhead wires for perhaps five to ten minutes and take a good long drink.
- Electrification could be either 25 KVAC overhead or 750 VDC overhead.
- Newbury, where the electrification to London starts is 42 miles away and trains can pick it up at speed.
- Taunton is 47 miles away and could be electrified to Exeter St. Davids.
Great Western Railway could run all their services between London Paddington and the South-West using Class 800 trains with a battery capability.
Conclusion
The prolitical, heritage and engineering problems of electrifying through Bath Spa station can be voided, by electrification and charging facilities at stations like Bristol Temple Meads, Taunton, Westbury and Weston-super-Mare.
Scaled Back Hajj Pilgrimage Due To Start In Saudi Arabia
The title of this post, is the same as that of this article on the BBC.
Quite frankly, I was very surprised, when I heard this news on the BBC.
I thought, the Hajj would have been cancelled and not just scaled back.
In the past, I have had vicars as friends and I have talked to devout Orthodox Jews, and we have discussed serious moral dilemmas.
I can remember some from both groups saying, that your health always comes first.
In the current pandemic, the Church of England and prominent Jews like the Chief Rabbi have behaved with ultra-caution.
So where is this caution from the Muslim religious leaders?
I hope the Government and other political leaders, are giving them the truth, as they are endangering us all!
VDE Study Finds Battery Trains 35% Cheaper Than Hydrogen
The title of this post, is the same as that of this article on the International Railway Journal.
This is the introductory paragraph.
A study of the cost-effectiveness of battery electric multiple units (BEMU) and hydrogen electric multiple units (HEMU) as alternatives to diesel found that BEMUs could be up to €59m (35%) less expensive to buy and operate compared with their hydrogen fuel cell equivalents.
It also says that they are more expensive than the diesels they replace over thirty years.
As it is a professional German study, we should take note of what is said.
How Would This Apply To The UK?
There will be differences between the UK and Continental Europe, which will affect costs!
- Our small loading gauge seems to be making the design of hydrogen-powered trains difficult.
- Passenger capacity in a UK train, will probably be reduced when compared to the diesel equivalent.
- Our hydrogen technology is world-class.
- More affordable batteries would benefit both types of trains.
- I believe that companies like Vivarail, will come up with very fast and efficient chargers for battery trains using our third-rail technology, which may not be suitable outside the UK.
On balance though, I suspect that the cost difference worldwide, will be similar.
Conclusion
Companies, developers and engineers will fight a keen battle for supremacy.
There will be some suprising winners and some big losers.
Financing For 135 Hybrid Trainsets Agreed
The title of this post, is the same as this article on Railway Gazette International.
This is the introductory paragraph.
The European Investment Bank agreed a €450m financing package on July 23 which will support Trenitalia’s plans to order 135 electric-diesel-battery hybrid regional multiple-units at total cost of €960m.
The trains are from Hitachi’s Caravaggio family and will be built in their Italian plant at Pistoia. Their operation is described in this sentence.
They will use conventional overhead electrification where available, with ‘cutting-edge’ engines for operation onto non-electrified routes as well as batteries to eliminate emissions for the ‘last mile’ and in urban areas.
That sounds extremely sophisticated to me.
Is The Powertrain Technology Transferrable To The UK?
I have republished this post with a link to the original article, as it occurs to me, that Avanti West Coast, East Midlands Railway, Great Western Railway. LNER and other train operating companies could be in need of a train with a sophisticated Diesel/Electric/Battery Hybrid powertrain.
So will Hitachi be using a powertrain like this in the UK?
Iarnród Éireann Orders Stage V MTU PowerPacks
The title of this post, is the same as that as this article on Railway Gazette International.
The IE 22000 Class trains appear to be the main rolling stock of Irish Rail.
The Railway Gazette International article describes in detail how MTU are updating the standard diesel engines in these trains with their latest Hybrid PowerPacks.
The aim is to achieve a reduction of over thirty percent in both fuel consumption and carbon dioxide emissions.
From reading the article, it doesn’t appear to be a challenging project, once the testing is complete.
It does appear that MTU seem to get these conversion projects right.
Progress On The Porterbrook HybridFLEX Project
There is another engine conversion project, that uses MTU PowerPacks, underway in the UK, which I wrote about in Rolls-Royce And Porterbrook Launch First Hybrid Rail Project In The UK With MTU Hybrid PowerPacks, in September 2018.
Porterbrook call it the HybridFLEX project. I wonder how it is getting on.
This article on Diesel and Gas Turbine Worldwide, which is entitled Ricardo Leading Hybrid Train Project In UK, is the last reference I can find in January 2019.
As there are over two hundred trains, that can be converted in the UK, I’m looking forward to the rolling out of Porterbrook’s HybridFLEX project.
I suspect operators are too, as they’d like to save all that diesel.
Bookham Station – 25th July 2020
Bookham station is going to get a makeover.
Although it is Grade II Listed, it certainly needs some TLC.
Diesel Buses To Be Phased Out Within 15 Years To Cut Greenhouse Gas Emissions
The title of this post, is the same as that of this article in The Times.
Hallelujah!
Should be heavy trucks, next!



































































































