South Eastern Railway Deploys IsoMat Thermal Technology To Keep Trains On The Tonbridge To Hastings Line Running In Hot Weather
The title of this post, is the same as that of this news item on the Network Rail web site.
This is the sub-heading.
A new type of technology is being trialled on the Tonbridge to Hastings railway line to help keep trains running in hotter weather, and more reliable journeys for passengers and freight customers.
These two paragraphs add more details.
The South Eastern Railway has partnered with UK green tech start-up Flint Engineering to combat excessive heat in railway signalling cabinets that can exceed 70°C, with a new patented system that requires no power, maintenance, or internal cabinet modifications, and can be installed in under an hour.
Flint’s innovative IsoMat technology delivers peak temperature reductions of over 21%, on the hottest days, transferring thermal energy thousands of times more efficiently than copper or aluminium alone.
This is one of those ideas, that could be filed under Too Good To Be True.
This picture shows the device in operation.
I can see this device having many uses, in the most surprising places.
National Grid Has Awarded £12bn In HVDC Supply Chain Agreements
The title of this post, is the same as that of this press release from National Grid.
These are the first three paragraphs.
National Grid has completed the award of its High Voltage Direct Current (HVDC) civil works supply chain framework, with £12bn worth of agreements confirmed. This announcement marks the third and final stage of our £59bn supply chain framework awards and underlines the commitment to delivering the energy infrastructure needed to support the Great Grid Upgrade and the UK’s energy transition.
A total of six HVDC converter civil works suppliers have been awarded positions on Lot 1 of the Framework Agreement totalling approximately £9.07bn. In addition, three HVDC onshore cable civil works suppliers being awarded places on Lot 2 of the Framework, worth an estimated £3.7bn. The successful HVDC converter civils suppliers are Balfour Beatty, BAM Nuttall, Galliford Try, Laing O’Rourke, Skanska and Taylor Woodrow. The HVDC onshore cable civils Framework has been awarded to Balfour Beatty, Murphy, and VolkerFitzpatrick.
Contracts have been secured for a five-year period, with the potential to extend for a further three years. Both Frameworks cover confirmed and anticipated projects, including Eastern Green Link 4, in partnership with SP Energy Networks and LionLink in partnership with TenneT .
These are a lot of money allocated to projects, that will be delivered in the next few years.
Where’s the consolidated plan for capital expenditure from the Water Industry?
Water is also simpler, than electricity, as you are only dealing with one country. If you go through the paragraphs above, you’ll find TenneT, who do a similar job to National Grid in the Netherlands and parts of Germany.
I also found this advert from Thames Water, in a Southeastern train last week.
Does this indicate that Thames Water has project management problems?
I’ve Just Glimpsed The Future Of Train Travel Across The North Of England And I Like It
Yesterday, I had an appointment at Liverpool Lime Street station at four o’clock, so as I hadn’t seen the works for the TransPennine Upgrade for some time, I decided to go the long way round with a change of train from LNER to TransPennine Express at Leeds.
These sections document my day.
London King’s Cross To Leeds In An InterCity 225
I took these pictures on the journey.
Note.
- The 31 InterCity 225 trains were built around 1990.
- They have a capacity of 535 seats, whereas the newer Hitachi Class 801 trains have a capacity of 611 seats. Both trains are nine cars with both First and Standard seats.
- There is more of a step-up and step-down when entering or leaving the trains, compared to the best of today’s trains.
- They are now being phased out in favour of ten new CAF tri-mode Class 897 trains, which should be entering service in 2027.
- No details are available of the seating capacity of these trains, but they could be between 650 and 700, so they could maximise capacity on any LNER route.
Yesterday, the InterCity 225 performed well, although the windows at the seat where I sat, were rather dirty.
Changing Trains At Leeds Station
I changed to TransPennine Exzpress at Leeds station.
- At least, Leeds station, is one of the few in the UK, with a ticket office behind the barrier. Reading station please note this.
- But, I did have to walk across the bridge from one side of the station to the other.
In the end, I caught the TransPennine Express with about thirty seconds to spare.
Between Leeds And Huddersfield Stations
I took these pictures between Leeds and Huddersfield stations.
Note.
- Dewsbury and Huddersfield stations is about eight miles and takes about eight minutes.
- It is virtually a continuous building site, where extra tracks are being inserted.
- Three stations are being rebuilt.
- Overhead electrification is being installed. But except for approaching Huddersfield, there’s not much to be seen.
- OpenRailwayMap gives the maximum speed between Dewsbury and Huddersfield stations as between 60-75 mph.
The ride on my Class 803 train was very quiet and smooth. Was it on battery power or was I sitting in a coach without a diesel engine underneath?
Huddersfield Station
I took these pictures at Huddersfield station.
Note.
- Huddersfield station is Grade I Listed.
- There is a pub in each wing.
- I had a beer in the West Wing.
- There are currently three main through platforms and three bay platforms.
- Extensive works, which will be part of the TransPennine Upgrade, will include electrification, a new roof, a new footbridge, and two extra through platforms.
Huddersfield station will be the jewel in the Costa del Yorkshire.
The Platforms At Huddersfield Station
This OpenRailwayMap shows the platforms in Huddersfield station.
Note.
- The red and black tracks are being electrified.
- Of the current platforms, Platforms 1, 4 and 8 will be electrified.
- The two bay platforms; 5 and 6, will be converted into through platforms.
- Platform 2 is the bay platform in the South-West corner of the map, that is used by the shuttle train from Sheffield.
I am sure extra platforms could be electrified as required, as there must be a good electrical connection at Huddersfield station.
A Tram-Train Service Between Huddersfield And Sheffield Stations
This OpenRailwayMap shows platform 2 at Huddersfield station.
Note.
- Platform 2 is the black track at the right of the two through tracks, that are being electrified.
- Platform 2 is a bay platform close to the Head of Steam pub.
- I estimate that the platform is about 90 metres long.
- I suspect Platform 2 could be lengthened if required.
- Sheffield’s Class 399 tram/trains are 37.2 metres long, so a pair should fit in Platform 2.
- The Class 398 tram/trains can run on battery power and climb hills in South Wales.
- Platform 2 at Huddersfield station could be electrified to charge the tram/trains.
- There could be a significant height difference between Huddersfield and Sheffield stations of about 40 metres, which could be used to charge tram/trains on the way down.
- I feel with some track improvements, that a four trains per hour (tph) service could be run.
The service would call at Meadowhall, Chapeltown, Elsecar, Wombwell, Barnsley, Dodworth, Silkstone Common, Penistone, Denby Dale, Shepley, Stocksmoor, Brockholes, Honley, Berry Brow and Lockwood
The Pair Of Cranes In Huddersfield Station
These can’t be missed in the pictures. But why two massive cranes?
With an old roof to be taken down and a new roof and a footbridge to be lifted into place, I believe Network Rail have decided to bring in two of largest mobile cranes available in the UK, so that all the lifting doesn’t delay the project.
Between Huddersfield And Stalybridge Stations
I took these pictures between Huddersfield and Stalybridge stations.
Note.
- The Class 802 train was running freely along a well-laid track.
- There are four stations between Huddersfield and Stalybridge; Slaithwaite, Marsden, Greenfield and Mossley(Manchester).
- The stations were in reasonable condition, but some needed new footbridges and a bit of refurbishment.
- There was virtually no signs of any foundations for electrification.
This map shows the route.
Note.
- The pink tracks are the Manchester Metrolink.
- The red tracks are electrified at 25 KVAC overhead.
- The red and black tracks are being electrified.
- Huddersfield is indicated by the blue arrow in the North-East corner of the map.
- Stalybridge station is in the South-West corner of the map.
- The pink track in the South-West corner of the map is the Manchester Metrolink branch to Ashton-under-Lyme.
- The route between Huddersfield and Stalybridge is shown as it will will be fully electrified.
- Huddersfield and Stalybridge is 18 miles.
- There are three short tunnels between Huddersfield and Stalybridge.
I wonder, if it would be more affordable to not put up wires between Huddersfield and Stalybridge and use battery-electric passenger trains and hydrogen freight locomotives?
Stalybridge Station
I took these pictures at Stalybridge station.
The station is fully-electrified and has direct services to Huddersfield, Hull, Leeds, Liverpool, Manchester Piccadilly, Manchester Victoria, Newcastlle, Wigan and York.
Will Liverpool Lime Street And Newcastle Be Fully Electrified?
Consider.
- Liverpool Lime Street and Newcastle stations is 180.8 miles.
- Newcastle and Church Fenton stations is 91.4 miles and is fully-electrified.
- Liverpool Lime Street and Stalybridge stations is 39.4 miles and is fully-electrified.
This means that the gap between Church Fenton and Stalybridge stations is just fifty miles.
Real Time Trains indicate that the current Class 802 trains on the route run on diesel between Stalybridge and York stations, which is 60.8 miles.
- Changing power in Stalybridge and York stations means if anything goes wrong passengers can be easily rescued.
- From what I saw on Thursday, it looks like electrification will be completed between Neville Hill depot and Huddersfield.
I wouldn’t be surprised, if they just electrified to the West of Stalybridge and the East of Huddersfield.
That would mean that the 18 miles between Stalybridge and Huddersfield would be run on batteries.
- But it would also avoid electrifying three tunnels.
- How much disruption would be saved, by not electrifying the tunnels?
- Freight trains would use something like a bi-mode Class 99 locomotive, but it would only need a range of 18 miles on diesel.
I can also see improvised bi-mode locomotives being used like this combination of a Class 66 and Class 90 locomotives.

It was certainly doing its job, when I saw the combination at Shenfield.
Liverpool Lime Street Station Has A Problem With Flying Rats
Liverpool Lime Street station may have a problem with pigeons.
But the lady doesn’t seem to mind.
Desperate Times Call For Desperate Measures
The title for this post was inspired by this article on the BBC, which is entitled Water Scheme Kicks In To Boost Severn Amid Drought.
This is the sub-heading.
A groundwater scheme in Shropshire that pumps additional water into the River Severn has been switched on
These are the first three paragraphs, which add more detail.
It comes after the Environment Agency (EA) last month declared drought status for the West Midlands, following the driest spring in 132 years.
The scheme, owned and operated by the agency, pumps groundwater stored naturally in sandstone underneath much of north Shropshire, and delivers it through an underground network of pipes into the Severn.
The scheme pumps almost 40 Olympic-sized swimming pools of fresh water every day into the river, with a total of 49 pumps and 53km (32.9m) of underground pipes.
It looks a good scheme to me, but I suspect, those pumps and pipes didn’t come cheap.
These two further paragraphs, explain how it works.
Two reservoirs in Wales – Clywedog and Vyrnwy – are the first resources used to top up the river during dry weather.
The groundwater scheme is the last option to be brought into operation during dry conditions, because of how resource-intensive it is.
I suspect politicians like Trump and Farage would not have sanctioned a scheme like this, as it only protects a river.
This page on the Environment Agency blog gives more details of the scheme.
I looked up the title, that I’ve used for this post on Google AI and received this answer.
“Desperate times call for desperate measures” is an idiom suggesting that unusual problems or difficult circumstances may require unconventional or extreme solutions that would not normally be considered. The phrase originated from an ancient Greek physician, Hippocrates, who wrote about extreme diseases needing extreme methods of cure. The saying acknowledges that when faced with significant challenges, bold or drastic decisions may be necessary for survival or success.
As it seems the scheme is working well, I feel that the decision to build it, was the right one.
Iceland Is Calling
This was an advert in Bank station, yesterday.

I’ve been to Iceland and it made a good break from hot weather.
There is now a Geothermal Exhibition In Iceland.
I asked Google AI, if you can have a tour of one of the geothermal projects in Cornwall and received this answer.
There are two main deep geothermal projects in Cornwall with public-facing aspects: the United Downs Deep Geothermal Project and the Eden Geothermal Project. While both are operational or nearing completion, direct public tours of the operating power plants themselves aren’t yet a standard offering. Instead, you can visit the Eden Project, which is heated by its geothermal system, and learn about the technology there, or potentially visit the United Downs project site to see the developments.
Hopefully, I’ll be able to see more in a couple of years.
East India And Blackheath Stations Through The Silvertown Tunnel – 22nd August 2025
I haven’t been through the Silvertown Tunnel for some weeks, so yesterday, as I wanted to have a look at the refurubished Blackheath station, I went and had a look.
Note.
- The journey was made at about 11:00 on a Friday morning.
- The bus was more of a taxi, as only about five passengers used it.
- The tunnel wasn’t very busy with traffic.
This article on Highways Magazine is entitled Traffic Volumes Down At Blackwall And Silvertown Tolls.
This is the sub-heading.
Daily traffic volumes for both the newly opened Silvertown and Blackwall tunnels are 7.6% lower than in the same period last year for just the Blackwall tunnel, Highways can reveal.
I feel very much, that the Silvertown Tunnel is being underused and perhaps we should run more local buses or even long-distance coaches through the tunnel.
Blackheath Station – 22nd August 2025
I’d read somewhere that Blackheath station had had a refurbishment, so yesterday I went to have a look.
I took these pictures.
Note.
- The station has has a high-quality makeover.
- There is a delightful and very practical cafe.
- Period details like the windows have been decorated with the care, that a Grade II Listed building deserves.
More stations in the UK, need a makeover like this.
Battery-Powered Train Breaks Distance Record
The title of this post, is the same as that of this article on the BBC.
This is the sub-heading.
A battery-powered train has broken the world record for the longest railway journey on a single charge.
These three introductory paragraphs add more details.
The Great Western Railway (GWR) train – a specially adapted former District Line train – travelled overnight along a 200-mile (322km) route from Reading and back again, via London Paddington and Oxford.
It reached 140 miles (225km), breaking the record on Brunel’s Maidenhead Bridge at about 04:00 BST.
The previous record of 139 miles (224km) was set by German train company Stadler Deutschland in Berlin on 10 December 2021.
This was an impressive demonstration of the capabilities of battery-electric trains.
Will This Record Be Beaten?
200 miles is impressive, but there was also this paragraph in the article.
At the end of the journey GWR said there was a remaining battery charge of 22% which it estimated would have allowed the train to travel about a further 58 miles (93km).
So it looks like 258 miles should be possible.
Four other companies are also developing battery-electric trains.
- Alstom at Derby
- CAF at Newport
- Hitachi at Newton Aycliffe
- Siemens at Goole
- Stadler in Switzerland.
Note.
- All except Stadler have UK factories.
- Siemens and Stadler have delivered trains in Germany.
- This page on the Hitachi Rail web site is entitled Intercity Battery Trains.
- This page on the Hitachi Rail web site is entitled Hitachi Wins New UK Contract To Build Intercity Battery Trains. The customer is Grand Central Trains.
- Hitachi have been running a prototype for some months, in the UK.
The competition is hotting up and the record will certainly be soundly beaten.
Centrica Enters Into Long Term Natural Gas Sale & Purchase Agreement
The title of this post, is the same as this press release from Centrica.
This is the sub-heading,
Centrica plc today confirmed that its trading arm, Centrica Energy, has entered into a natural gas sale and purchase agreement with US-based Devon Energy Corporation.
This first paragraph adds a few more details.
Under the agreement, Devon Energy will supply 50,000 (MMBtu) per day of natural gas over a 10‑year term starting in 2028. This is equivalent to five LNG cargoes per year. The volumes will be indexed to European gas hub price (TTF). This sale and purchase agreement supports Centrica’s objective of managing market price risk in its LNG portfolio by aligning feed gas pricing with European gas prices whilst providing Devon Energy with international price exposure.
At a first look, it looks a lot of gas.
In Investment In Grain LNG, I talk about Centrica’s purchase of the Grain LNG Terminal from National Grid. But the Grain LNG Terminal comes with several things that Centrica might need for gas from Devon.
- A large amount of gas storage.
- The ability to convert liquid natural gas (LNG) into gas suitable for consumers.
- Space to build more storage if required.
- The ability to store LNG for other companies.
- Two jetties for delivering the LNG to the Grain LNG Terminal.
- The ability to load tankers with LNG, so that it can be sold on to third parties like say the Germans or the Poles.
Centrica also say this about their use of the Grain LNG Terminal in this press release, that describes the purchase of the terminal.
Aligned with Centrica’s strategy of investing in regulated and contracted assets supporting the energy transition, delivering predictable long-term, inflation-linked cash flows, with 100% of capacity contracted until 2029, >70% until 2038 and >50% until 2045.
Centrica have obviously modelled their gas supply and delivery and I believe they have come up with a simple strategy, that will work.
How Will Centrica Use The Gas From The Grain LNG Terminal?
The Wikipedia entry for the Grain LNG Terminal says this about the terminal delivering gas into the gas grid.
The terminal can handle up to 15 million tonnes per annum of LNG, has a storage capacity for one million cubic metres of LNG, and is able to regasify up to 645 GWh per day (58 million cubic metres per day) for delivery into the high pressure gas National Transmission System (NTS).
Note.
- This will be one of the major uses of the gas.
- I wouldn’t be surprised if these capacities will be increased significantly, so that more gas can be stored and processed.
In Investment in Grain LNG, I outlined how I believe that hydrogen and ammonia will be produced for the bunkering of ships on one of busiest sea lanes in Europe, if not the world.
Some LNG will be used to create these zero-carbon fuels.
Some modern ships, also run on natural gas, so I asked Google AI about their operation and received this answer.
Ships can run on natural gas, specifically liquefied natural gas (LNG), by using it as a fuel source in specially designed engines. LNG is natural gas that has been cooled to a liquid state at -162°C, making it easier to store and transport. This liquid form is then used to power the ship’s engines, either directly or by burning the boil-off gas (BOG) that naturally occurs when LNG warms up.
This means that some LNG could be used to directly fuel these ships.
What Is The Gas Capacity Of The Grain LNG Terminal?
I asked Google AI this question and received this answer.
The Grain LNG Terminal, the largest LNG import terminal in Europe, has a storage capacity of 1,000,000 cubic meters (m³) and an annual throughput capacity of 15 million tonnes of LNG. This is equivalent to about 20% of the UK’s total gas demand. The terminal also has the capacity to deliver 25% of the UK’s daily gas demand.
As the space is there, I wouldn’t be surprised to see Centrica increase the capacity of the terminal, as in cold weather, emergency gas for Germany can be delivered quicker from Kent than the United States.
Could The Grain LNG Terminal Accept Gas Deliveries From The United States?
I’m certain that it already does.
Could The Grain LNG Terminal Accept Gas Deliveries From The UK?
If we start extracting gas again from under the seas around the UK, could the Grain LNG Terminal be used to store it?
Yes, but it would have to be liquified first.
It would be more energy efficient to process the extracted gas, so it could be used directly and gasify enough gas at Grain LNG Terminal from storage to make up any shortfall.
Conclusion
Centrica have done some very deep joined up thinking, by doing a long term gas deal and the Grain LNG Terminal purchase so that they have the gas to supply and somewhere to keep it, until it is needed.



























































































































































































