Battery EMUs Envisaged In Southeastern Fleet Procurement
The title of this post, is the same as that of this article on Railway Gazette.
This is the first paragraph.
Southeastern has invited expressions of interest for the supply of new electric multiple-units with an optional battery capability for operation away from the 750 V DC third-rail network.
This article on bidstats is entitled Supply Of And Maintenance Support For New Rolling Stock For Southeastern, and gives more details.
These are my thoughts.
Southeastern HighSpeed Services
There would appear to be no changes in this contract to the Class 395 trains, that work on High Speed One, as this is said in the bidstats article.
Full compatibility with Southeastern infrastructure (excluding High Speed 1 infrastructure)
which appears to rule out running on High Speed One.
In addition, this article on Rail Magazine is entitled Southeastern’s Class 395 Javelin Train Sets Are To Receive A £27 million Facelift.
Southeastern Have Both 75 and 100 mph Trains
In addition to their Class 395 trains, Southeastern have the following trains in their fleet.
- Class 375 trains – 100 mph – 10 x 3 cars
- Class 375 trains – 100 mph – 102 x 4 cars
- Class 376 trains – 75 mph – 36 x 5 cars
- Class 465 trains – 75 mph – 129 x 4 cars
- Class 466 trains – 75 mph – 36 x 2 cars
- Class 707 trains – 100 mph – 18 x 5 cars
Note.
- Running a mixed fleet of 75 and 100 mph trains can’t be very efficient.
- The Class 465 and 466 trains are the oldest trains and date from 1991-1994.
- They are often to be seen in ten-car formations of 2 x 465 trains and a Class 466 train.
- Another twelve Class 707 trains are planned to join Southeastern.
I would expect the Class 465 and Class 466 trains to be replaced first.
What Length Will The New Trains Be?
If you look at the new suburban electric trains, they have the following lengths.
- c2c – Class 720 trains – 5 cars
- Greater Anglia – Class 720 trains – 5 cars
- Northern – Class 331 trains – 3 and 4 cars
- Southeastern – Class 707 trains – 5 cars
- South Western Railway – Class 701 trains – 5 and 10 cars
- West Midlands Trains – Class 730 trains – 3 and 5 cars
Note.
- Southeastern already run five-car trains as pairs.
- A significant proportion of existing suburban trains are five-car trains.
- Great Western, Hull Trains, LNER, Lumo and TransPennine Express run five-car Hitachi trains, with more companies to follow.
- A pair of five-car trains make a pair of a convenient length for most platforms.
I would be fairly confident, that the new trains will be five-car trains, with the ability to run as pairs.
What Will Be The Operating Speed Of The New Trains?
To match the speed of the Class 375 and Class 707 trains, I would expect them to be 100 mph trains.
The Quietness Of Battery-Electric Trains
All of the battery-electric trains I have ridden, have been mouse-quiet, with none of the clunking you get for a lot of electric trains.
This is said in the bidstats article says this about the interiors
Interiors suitable for metro & mainline operation.
I wouldn’t be surprised to see a lot of these trains on commuter routes to attract passengers.
Battery Power
This is said in the bidstats article about battery power.
Inclusion of options for traction batteries with capability for operation in depots and sidings without the need for external power supply, and with the capability to operate on the main line where power supply is not available due to isolations or incidents, or for non-electrified line sections of up to 20 miles.
Although Merseyrail’s new Class 777 trains are not in service yet, I find it interesting that the proposed Southeastern trains will be similarly-fitted with a small battery for depot and siding operation.
The twenty mile battery range is specific and I wonder if it will be used innovatively. I suspect it could be a bit longer in the future, as battery technology improves.
Possible Electrified Routes Using Battery Power
These are a few possibilities.
The Hoo Branch
In Effort To Contain Costs For Hoo Reopening, I discussed running electric trains to a proposed Hoo station.
I made these two points.
- Hoo junction to Hoo station is no more than five or six miles.
- There are also half-a-dozen level crossings on the route, which I doubt the anti-third rail brigade would not want to be electrified.
It would appear that a battery-electric train with a range of twenty miles would handle this route easily.
- Charging would be on the nearly thirty miles between Hoo junction and Charing Cross station.
- No charging would be needed at Hoo station.
There may be other possibilities for new routes locally to open up new housing developments.
The Sheerness Line
The Sheerness Line has the following characteristics.
- It is double-track
- It is electrified
- It is less than eight miles long.
- For most of the day, the service is one train per hour (tph)
- There are two tph in the Peak.
- Would two tph attract more passengers to the line?
- Does the power supply on the Sheerness Line limit the size and power of trains that can be run on the line?
- Is there a need for one train per day to London in the morning and a return in the evening?
- Could the Sheerness Line be run more economically with battery trains. providing a two tph service all day?
The Isle of Sheppey needs levelling up, perhaps 100 mph trains to London using battery power on the Sheerness Line, might just make a difference.
The Medway Valley Line
The Medway Valley Line has the following characteristics.
- It is double-track
- It is electrified
- It is less than twenty-six and a half miles long.
- For most of the day, the service is two tph.
- In the Peak there are HighSpeed services between Maidstone West and St.Pancras International stations.
If electrification was removed between Paddock Wood and Maidstone West stations, the HighSpeed services could still be run and battery-electric trains with a twenty mile range could still run the Tonbridge and Strood service.
The Marshlink Line
The Marshlink Line has the following characteristics.
- It is mainly single-track with a passing loop at Rye station.
- It is not electrified
- It is 25.4 miles between the electrified Ashford International and Ore stations.
- Services are irregular and less than one tph.
If the proposed battery-electric train had a range of thirty miles, it should be able to handle the Marshlink Line.
The service between Eastbourne and Ashford International stations would need to be moved between the Southern and Southeastern operations.
The Uckfield Branch
The Uckfield Branch has the following characteristics.
- It is a mixture of single- and double-track.
- It is not electrified South of Hurst Green Junction.
- It is 24.7 miles between the electrified Hurst Green Junction and Uckfield station
- Services are one tph.
If the proposed battery-electric train had a range of thirty-miles, it should be able to handle the Uckfield Branch, with a charging system at Uckfield station.
Will Battery-Electric Trains Allow Some Lines To Have Their Electrification Removed?
There are several reasons, why electrification might be removed.
- It is on a line, where the electrification needs upgrading.
- It is on a line, where there are lots of trespassers.
- Possibly at a level-crossing or a stretch of track with several.
- Possibly in a tunnel, with a large inflow if water.
- It is a depot or siding, where safety is important to protect the workforce.
Obviously, the electrification would not be removed unless battery-electric trains can handle all possible services.
These are surely some possibilities for electrification removal.
The Hayes Line
The Hayes Line has the following characteristics.
- It is double-track
- It is electrified
- It is less than eight miles to Ladywell Junction, where the branch joins the main line at Lewisham.
- It is currently run by Class 465 and Class 466 trains, which will likely be changed for the new trains with a battery capability.
- Services are four tph.
If the proposed battery-electric train had a range of twenty-miles, it would be able to handle the route between Ladywell junction and Hayes station.
Erith Loop, Crayford Spur and Slade Green Depot
This map from Cartometro.com shows the Erith Loop, the Crayford Spur and the Slade Green Depot.
Note.
Not many trains take the Erith Loop or the Crayford Spur.
- The distance between Slade Green and Barnehurst is less than a mile-and-a-half.
- Dartford station is off the South-East corner of the map.
- The distance between Barnehurst and Dartford is less than three miles.
- The distance between Slade Green and Crayford is less than two miles-and-a-half.
- The distance between Crayford and Dartford is less than two miles.
- The main line through Slade Green would need to remain electrified, as electric freight trains use the line.
I suspect, that quite a lot of electrification could be removed here, much to the disgust of the copper thieves.
It might even be possible to build on top of the depot.
How Is The XLinks Project Progressing?
The Wikipedia entry for the XLinks project has this introductory paragraph.
The Xlinks Morocco-UK Power Project is a proposal to create 10.5 GW of renewable generation, 20 GWh of battery storage and a 3.6 GW high-voltage direct current interconnector to carry solar and wind-generated electricity from Morocco to the United Kingdom. Morocco has far more consistent weather, and so should provide consistent solar power even in midwinter.
I ask the question in the title of this post, as there are two articles about the XLinks project in The Times today.
This article is optimistic and is entitled Xlinks Morocco Project Could Throw Britain A Renewable Energy Lifeline.
On the other hand this article is more pessimistic and is entitled Britain ‘Risks Losing Out’ On Green Energy From The Sahara.
This is the first paragraph of the second article.
Sir Dave Lewis has complained of “frustratingly slow” talks with the government over an £18 billion plan to generate power in the Sahara and cable it to Britain. The former Tesco chief executive has warned that the energy could be routed elsewhere unless ministers commit to the scheme.
It appears there have been little agreement on the price.
I have some thoughts.
Will XLinks Get Funding?
Xlinks is going to be privately funded, but I have doubts about whether the funding will be made available.
As an engineer, who was involved in many of the major offshore projects of the last forty years of the last century, I believe that the XLinks project is feasible, but it is only 3.6 GW.
These wind farm projects are also likely to be privately funded.
- SSE’s Berwick Bank project opposite Berwick is 4.1 GW
- Aker’s Northern Horizon off Shetland is 10 GW.
- The Scotwind Leasing Round is 25 GW.
- There is talk of 10 GW being possible off East Anglia.
- 50 GW may be being possible in the Celtic Sea.
- BP is planning 3 GW in Morecambe Bay.
Many of these enormous wind power projects are looking for completion on or before 2030, which is the date given for the Morocco cable.
I do wonder, if those financing these energy projects will find these and other projects better value than a link to Morocco.
Is the Project Bold Enough?
Consider.
- Spain has high levels of solar, wind and hydro power.
- France is developing wind to go with their nuclear.
- Both countries and Portugal, also have mountains for sensibly-sized pumped-storage hydroelectric power stations.
- France, Spain, Portugal and Ireland also have the Atlantic for wind, tidal and wave power.
Perhaps, the solution, is an Atlantic interconnector linking the UK, Ireland, France, Spain, Portugal and Gibraltar to West Africa.
Any excess power would be stored in the pumped-storage hydroelectric power stations and withdrawn as required.
In the UK, the National Grid are already using the huge 7800 GWh Ulla-Førre pumped-storage hydroelectric power station to store excess wind-generated energy using the North Sea Link from Blyth.
To my mind XLinks is just a UK-Morocco project.
BP’s Project In Mauretania
In bp And Mauritania To Explore Green Hydrogen At Scale, I discussed BP’s deal to create green hydrogen in Mauretania.
Is this a better plan, as hydrogen can be taken by tanker to where it is needed And for the best price.
Conclusion
I wouldn’t be surprised to see the XLinks project change direction.
The Anonymous Widower 