Energy In – Hydrogen And Carbon Dioxide Out
This article was inspired by this article in the Sunday Times, which is entitled ‘It’s A Slog’: Life Inside Britain’s Last Coal Power Station.
The article is about Ratcliffe-on-Soar power station, which is next to East Midlands Parkway station.
This is the first paragraph of the station’s Wikipedia entry.
Ratcliffe-on-Soar Power Station is a coal-fired power station owned and operated by Uniper at Ratcliffe-on-Soar in Nottinghamshire, England. Commissioned in 1968 by the Central Electricity Generating Board, the station has a capacity of 2,000 MW. It is the last remaining operational coal-fired power station in the UK, and is scheduled to close in September 2024.
I took these pictures of the power station in 2019.
Ratcliffe-on-Soar is the last of a number of large coal-fired power stations, that were built in the area, mainly along the River Trent.
- Rugeley – 600 MW – 1961
- Drakelow – 1630 MW – 1964
- Willington – 800 MW – 1962
- Castle Donington – 600 MW – 1958
- Ratcliffe-on-Soar – 2000 MW – 1968
- High Marnham – 1000 MW – 1959
- Cottam – 2000 MW – 1968
- West Burton – 2000 MW – 1968
Note.
- The date is the commissioning date.
- That is 10,630 MW of electricity.
- There are also a few large gas-fired power stations along the river, that are still operating.
- Both coal and gas-fired stations use the water from the River Trent for cooling.
At the mouth of the river, there is the Keadby cluster of gas-fired power stations.
- Keadby 1 – 734 MW – 1996
- Keadby 2 – 849 MW – 2023
- Keadby 3 – 910 MW – 2027
- Keadby Hydrogen – 900 MW – 2030
Note.
- The date is the commissioning date.
- That is 3,393 MW of electricity.
- Keadby 2 is the most efficient CCGT in the world.
- Keadby 3 will be fitted with carbon capture.
- Keadby 2 has been designed to be retrofitted with carbon capture.
- Keadby Hydrogen will be fuelled by zero-carbon hydrogen.
As the years progress, I can see the Keadby cluster of power stations becoming a large zero-carbon power station to back-up wind farms in the North Sea.
- Hydrogen power stations will emit no carbon dioxide.
- Carbon dioxide from all gas-fired stations will be captured.
- Some carbon dioxide will be sold on, to companies who can use it, in industries like construction, agriculture and chemical manufacture.
- The remaining carbon dioxide will be stored in depleted gas fields.
As technology improves, more carbon dioxide will be used rather than stored.
Other Power Sources In The Humberside Area
In the next few sub-sections, I will list the other major power sources in the Humberside area.
Drax Power Station
Drax power station is a shadow of its former self, when it was one of the power stations fed by the newly discovered Selby coalfield.
These days it is a 2,595 MW biomass-fired power station.
Eastern Green Link 2
Eastern Green Link 2 will be a 2 GW interconnector between Peterhead in Scotland and Drax.
It is shown in this map.
Note.
- Most of the route is underwater.
- It is funded by National Grid.
- Contracts have been signed, as I talk about in Contracts Signed For Eastern Green Link 2 Cable And Converter Stations.
- It is scheduled to be completed by 2029.
This interconnector will bring up to 2 GW of Scottish wind-generated electricity to Drax and Humberside.
Drax has the substations and other electrical gubbins to distribute the electricity efficiently to where it is needed.
2 GW could also reduce the amount of biomass used at Drax.
In the long term, if the concept of the four Eastern Green Links is successful, I could see another Eastern Green Link to Drax to replace imported biomass at Drax.
I also, don’t see why a smaller Drax can’t be run on locally-sourced biomass.
Solar Farms And Batteries Along The River Trent
As the coal-fired power stations along the River Trent are demolished, solar farm developers have moved in to develop large solar farms.
Salt End Power Station And Chemical Works
These two paragraphs from the Wikipedia entry for Salt End describes the hamlet and its power station and chemical works.
Salt End or Saltend is a hamlet in the East Riding of Yorkshire, England, in an area known as Holderness. It is situated on the north bank of the Humber Estuary just outside the Hull eastern boundary on the A1033 road. It forms part of the civil parish of Preston.
Salt End is dominated by a chemical park owned by PX group, and a gas-fired power station owned by Triton Power. Chemicals produced at Salt End include acetic acid, acetic anhydride, ammonia, bio-butanol, bio-ethanol, ethyl acetate (ETAC) and ethylene-vinyl alcohol copolymer (EVOH) with animal feed also being produced on site.
I wonder, if running the complex on hydrogen would give cost and marketing advantages.
Aldbrough Hydrogen Storage Facility
This page on the SSE Thermal web site is entitled Plans For World-Leading Hydrogen Storage Facility At Aldbrough.
This is the most significant paragraph of the page, that is definitely a must-read.
With an initial expected capacity of at least 320GWh, Aldbrough Hydrogen Storage would be significantly larger than any hydrogen storage facility in operation in the world today. The Aldbrough site is ideally located to store the low-carbon hydrogen set to be produced and used in the Humber region.
This is a hydrogen storage facility for a much wider area than Humberside.
Rough Gas Storage Facility
This is the first paragraph of the Wikipedia entry for the Rough Gas Storage Facility.
Rough is a natural gas storage facility under the North Sea off the east coast of England. It is capable of storing 100 billion cubic feet of gas, nearly double the storage capacities in operation in Great Britain in 2021.
In Wood To Optimise Hydrogen Storage For Centrica’s Rough Field, I describe Centrica’s plans to convert the Rough gas storage into a massive hydrogen storage.
The Location Of Aldbrough Gas Storage, Rough Gas Storage, Salt End And Easington Gas Terminal
This Google Map shows between Salt End and the coast.
Note.
- The river crossing the South-West corner of the map is the Humber.
- Salt End with its power station and chemical works is on the North Bank of the Humber, where the river leaves the map.
- Aldbrough Gas Storage is marked by the red arrow at the top of the map.
- Easington Gas Terminal is in the South-East corner of the map.
- According to Wikipedia, gas flows into and out of the Rough Gas Storage are managed from Easington.
Looking at the map, I feel that the following should be possible.
- The two gas storage sites could be run together.
- Salt End power station and the related chemical works could run on hydrogen.
- Salt End will always have a reliable source of hydrogen.
- This hydrogen could be green if required.
All the chemical works at Salt End, could be run on a zero-carbon basis. Would this mean premium product prices? Just like organic does?
Enter The Germans
The Germans have a huge decarbonisation problem, with all their coal-fired power stations and other industry.
Three massive projects will convert much of the country and industry to hydrogen.
- H2ercules, which is a project of OGE and RWE, will create a hydrogen network to bring hydrogen, to where it is needed.
- In Uniper To Make Wilhelmshaven German Hub For Green Hydrogen; Green Ammonia Import Terminal, I describe how Uniper are going to build a hydrogen import terminal at Wilhelmshaven.
- AquaVentus is an RWE project that will use 10.3 GW of offshore wind power in German territorial waters to create a million tonnes per year of green hydrogen.
These would appear to be three of Europe’s largest hydrogen projects, that few have ever heard of.
AquaVentus And The UK
This video shows the structure of AquaVentus.
I clipped this map from the video.
Note.
- The thick white line running North-West/South-East is the spine of AquaVentus, that delivers hydrogen to Germany.
- There is a link to Denmark.
- There appears to be an undeveloped link to Norway.
- There appears to be an undeveloped link to Peterhead in Scotland.
- There appears to be a link to just North of the Humber in England.
- Just North of the Humber are the two massive gas storage sites of Aldbrough owned by SSE and Brough owned by Centrica.
- There appear to be small ships sailing up and down the East Coast of the UK. Are these small coastal tankers, that are distributing the hydrogen to where it is needed?
In the last century, the oil industry, built a substantial oil and gas network in the North Sea.
It appears now the Germans are leading the building of a substantial hydrogen network in the North Sea.
These are my thoughts about development of the AquaVentus network.
Hydrogen Production And AquaVentus
This RWE graphic shows the layout of the wind farms feeding AquaVentus.
Note.
- There is a total of 10.3 GW.
- Is one of the 2 GW web sites on the UK-side of AquaVentus, the 3 GW Dogger Bank South wind farm, which is being developed by RWE?
- Is the 0.3 GW wind farm, RWE’s Norfolk wind farm cluster, which is also being developed by RWE?
Connecting wind farms using hydrogen pipelines to Europe, must surely mitigate the pylon opposition problem from Nimbys in the East of England.
As the AquaVentus spine pipeline could eventually connect to Peterhead, there will be other opportunities to add more hydrogen to AquaVentus.
Hydrogen Storage And AquaVentus
For AquaVentus to work efficiently and supply a large continuous flow of hydrogen to all users, there would need to be storage built into the system.
As AquaVentus is around 200 kilometres in length and natural gas pipelines can be up to 150 centimetres in diameter, don’t underestimate how much hydrogen can be stored in the pipeline system itself.
This page on the Uniper web site is entitled Green Wilhelmshaven: To New Horizons.
This is a sentence on the page.
Access to local hydrogen underground storage at the Etzel salt cavern site.
An Internet search gives the information, that Etzel gas storage could be developed to hold 1 TWh of hydrogen.
That would be enough hydrogen to supply 10 GW for a hundred hours.
Note that the UK branch of AquaVentus reaches the UK, just to the South of the massive hydrogen storage facilities at Aldbrough and Rough.
It would appear that both Germany and the UK are connected to AquaVentus through substantial storage.
I am certain, that all country connections to AquaVentus will have substantial storage at the country’s hydrogen terminal.
AquaDuctus
This would appear to be the first part of the AquaVentus network and has its own web site.
The web site is entitled Nucleus Of A Offshore Hydrogen Backbone.
These are the first two paragraphs.
The project partners are focusing on a scalable, demand-driven infrastructure: By 2030, AquaDuctus will connect the first large hydrogen wind farm site, SEN-1, with a generation capacity of approximately one gigawatt. SEN-1 is located in the German EEZ in the northwest of Helgoland. The pipeline will transport at a length of approx. 200 km green hydrogen produced from offshore wind to the German mainland and from there to European consumers via the onshore hydrogen infrastructure.
In the next project stage, AquaDuctus will be extended to the remote areas of the German exclusive economic zone towards the tip of the so-called duck’s bill. By that, additional future hydrogen wind farm sites will be connected. Along its way AquaDuctus will provide interconnection points with the opportunity for linking of adjacent national offshore hydrogen infrastructures originating from Denmark, Norway, the Netherlands, Belgium and United Kingdom which opens the door for Europe-wide offshore hydrogen transport by pipeline.
There is also an interactive map, that gives more details.
This paragraph explains, why the Germans have chosen to bring the energy ashore using hydrogen, rather than traditional cables.
Recent studies show that offshore hydrogen production and transport via pipelines is faster, cheaper, and more environmentally friendly than onshore electrolysis with a corresponding connection of offshore wind turbines via power cables. The German federal government has also recognized this advantage and has clearly expressed its intention to promote offshore hydrogen production in the North Sea.
I suspect, that some UK offshore wind farms will use the same techniques.
Hydrogen Production For The UK
Electrolysers will probably be built along the East Coast between Peterhead and Humberside and these will feed hydrogen into the network.
- Some electrolysers will be offshore and others onshore.
- Turning off windfarms will become a thing of the past, as all surplus electricity will be used to make hydrogen for the UK or export to Europe.
- Until needed the hydrogen will be stored in Albrough and Rough.
Backup for wind farms, will be provided using hydrogen-fired power stations like Keadby Hydrogen power station.
Financial Implications
I reported on Rishi Sunak’s Manifesto Speech, which he made on June 11th. This is an extract
This document on the Policy Mogul web site is entitled Rishi Sunak – Conservative Party Manifesto Speech – Jun 11.
These are three paragraphs from the speech.
We don’t just need military and border security. As Putin’s invasion of Ukraine has shown, we need energy security too. It is only by having reliable, home-grown sources of energy that we can deny dictators the ability to send our bills soaring. So, in our approach to energy policy we will put security and your family finances ahead of unaffordable eco zealotry.
Unlike Labour we don’t believe that we will achieve that energy security via a state-controlled energy company that doesn’t in fact produce any energy. That will only increase costs, and as Penny said on Friday there’s only one thing that GB in Starmer and Miliband’s GB Energy stands for, and that’s giant bills.
Our clear plan is to achieve energy security through new gas-powered stations, trebling our offshore wind capacity and by having new fleets of small modular reactors. These will make the UK a net exporter of electricity, giving us greater energy independence and security from the aggressive actions of dictators . Now let me just reiterate that, with our plan, we will produce enough electricity to both meet our domestic needs and export to our neighbours. Look at that. A clear, Conservative plan not only generating security, but also prosperity for our country.
I can’t remember any reports about an energy security policy, which he outlined in the last paragraph of my extract from his speech.
He also said we would have sufficient electricity to export to our neighbours. As I said earlier some of this energy will be in the form of hydrogen, which has been created by offshore electrolysers.
If we are exporting electricity and hydrogen to Europe, this is likely to have three effects.
- An improvement in Europe’s energy security.
- H2ercules will improve and decarbonise German industry, using UK hydrogen.
- The finances of UK plc will improve.
It looks like there would be winners all round.
Rishi Sunak had the cards and he played them very badly.
It is now up to Keir Starmer, Great British Energy and Jürgen Maier to play those cards to link the energy systems of the UK and Germany to ensure security and prosperity for Europe.
C-Capture Launches Innovative Carbon Capture Trial For Cement Industry
The title of this post, is the same as that of this news item from C-Capture.
This is the sub-heading.
C-Capture, developers of next generation technology for carbon dioxide removal, has launched a new carbon capture trial in the cement manufacturing sector in partnership with Heidelberg Materials.
This is the first paragraph.
The trial, which utilises C-Capture’s innovative solution for industrial decarbonisation, is taking place at Heidelberg Material’s cement manufacturing plant in Ketton. It forms part of C-Capture’s national project, ‘XLR8 CCS – Accelerating the Deployment of a Low-Cost Carbon Capture Solution for Hard-to-Abate Industries’. Working with project partners across the UK, C-Capture’s XLR8 CCS project will demonstrate that a low-cost carbon capture solution is a reality for difficult-to-decarbonise industries in the race to net zero.
I wrote about C-Capture’s technology in Could Drax Power Station Solve The Carbon Dioxide Shortage?
The technology appears to have been spun out of Leeds University.
BP and Drax are investors.
This page on the C-Capture web site is called Technology and has a very neat interactive guide to how the technology works.
Conclusion
I have high hopes for this company and its technology.
Network Rail To Rebuild Multi-Million-Pound Bridge Across M62 In Rochdale
The title of this post, is the same as that of this article on RAILUK.
These four paragraphs describe the work.
Network Rail is investing more than £20 million in rebuilding a major railway bridge that takes trains over the M62 in Castleton, near Rochdale.
Passengers and motorists are urged to check before they travel in September 2024 as rail and road closures are required to replace the 42-metre-long, 2,000 tonne bridge.
The work will ensure safe and reliable journeys for passengers and freight over this vital structure for years to come.
To complete the work, engineers need to dismantle the old bridge and take it away on the M62. The new bridge materials will be delivered by road and built on site.
This Google Map shows the location of the bridge.
Note.
- Running East-West across the map is the M62, which is the TransPennine motorway with the big Junction 20 in the North-East corner.
- Junction 20 connects the M62 to the North-South A 627 (M).
- Meandering its way North-South up the middle of the map is the Rochdale Canal.
- Where the Canal leaves the map at its Northern edge, there is Castleton station on the Calder Valley Line, that is the picturesque route between Manchester in the West and Leeds and Bradford in the East.
- The Calder Valley Line runs North-South across the map to the West of the Rochdale Canal.
- The bridge to be replaced is where the Calder Valley Line passes over the motorway.
This Google Map shows a close up of the bridge.
Note.
- The Rochdale Canal running North-South at the Eastern edge of the map.
- The M62 running East-West across the bottom of the map.
- The Calder Valley Line runs North-South and passes over the motorway.
- To the North of the motorway, there is a large triangular junction, that connects the heritage East Lancashire Railway to the Calder Valley Line.
This Google Map shows a 3D image of the bridge from the East.
Ot looks to be a modern bridge, so when the M62 was built in the 1970s was some of these dodgy concretes used?
The RAILUK article does have these two paragraphs.
The bridge, known as Castleton bridge, carries 6% of the UK’s energy supply across the country, as freight trains carry material to and from Drax power station in Selby.
Olivia Boland, Network Rail sponsor, said: “The replacement of Castleton bridge is essential for the safe running of our railway, and crucial to the country’s economy as 6% of the UK’s energy supply relies on the bridge for transportation.
So is the £20 million being spent to in part make sure Drax keeps running?
Conclusion
This is going to cause traffic chaos.
UK Energy Grid Needs £60bn Upgrade To Hit Green Target, Plan Says
The title of this post, is the same as that of this article on the BBC.
This is the sub-heading.
The UK’s electricity network needs almost a further £60bn of upgrades to hit government decarbonisation targets by 2035, according to a new plan.
These five paragraphs explain the plan.
About 4,000 miles of undersea cables and 1,000 miles of onshore power lines are needed, said the National Grid’s Electricity Systems Operator (ESO).
The investment would add between £20 to £30 a year to customer bills, it said.
The government said the ESO’s plans were preliminary and yet to pass a “robust planning process”.
The plans were written up by the ESO, the organisation which runs the electricity network and would run the updated system it is calling for too. It is currently owned by National Grid but will transfer into government ownership later this year.
Its latest £58bn estimate is for work needed between 2030 and 2035 and comes on top of a previous £54bn estimate for work taking place between now and 2030.
These are my thoughts.
The Amount Of Undersea Cable
Edinburgh and London are roughly 400 miles apart as the train runs, so it looks like there could be the equivalent of ten underwater cables between the North of Scotland and England.
In Contracts Signed For Eastern Green Link 2 Cable And Converter Stations, I talked about the proposed 2 GW link between Peterhead in Scotland and Drax in England, which will be a double cable. So there’s the first two of these long cables.
It looks to me, that National Grid are proposing to use underwater cables wherever they can, so they avoid large expensive planning rows stirred up by Nimbies.
Monitoring The Undersea Cables
Last week Ofgem gave National Grid a £400,000 grant to develop new innovative technologies, which I wrote about in £400k For National Grid Innovation Projects As Part Of Ofgem Fund To Help Shape Britain’s Net Zero Transition.
One of the project is called HIRE – Hybrid-Network Improvement & Reliability Enhancement and will be used to check all these cables are performing as they should.
My electrical engineering experience tells me, that there must be some cunning way, that will detect that something is happening to the cable. The involvement of a technology company called Monitra in the project is a bit of a giveaway.
How Much Will It Cost Me?
Currently, UK consumers pay about £30 per year to have electricity delivered, so this will rise to between £50 and £60 per year.
That is just over a pound a week. I would pay about the same for a resident’s parking permit outside my house for an electric car and probably three times more for a petrol or diesel car.
Do We Have Enough Cable?
Two undersea cable factories are under development in Scotland and I suspect the 4,000 miles of undersea cables will be delivered on schedule and covered in saltires.
What About T-Pylons?
The latest onshore electricity transmission line between Hinckley Point C and Bristol, doesn’t use traditional pylons.
It uses T-pylons like these to connect the 3.26 GW nuclear power station.
Note that they are shorter, designed to be less intrusive, have a smaller footprint and are made from only ten parts.
I suspect they will cost less to install and maintain.
There is more on T-pylons in National Grid Energise World’s First T-Pylons.
I wouldn’t be surprised that some of the oldest traditional pylons will be replaced by T-pylons.
I am surprised that T-pylons are not mentioned in the BBC article.
I like T-pylons. How do you feel about them?
Eastern Green Link 2
This press release from National Grid, describes Eastern Green Link 2 like this.
Eastern Green Link 2 (EGL2) is a 525kV, 2GW high voltage direct current (HVDC) subsea transmission cable from Peterhead in Scotland to Drax in England delivered as a joint venture by National Grid and SSEN Transmission.
This map from National Grid, shows the route of the Eastern Green Link 2.
The Northern landfall is at Sandford Bay and the Southern landfall is at Wilsthorpe Beach.
This Google Map shows Sandford Bay and Peterhead power station.
Note.
- Sandford Bay occupies the North-East corner of the map.
- The red arrow indicates the main 400kV sub-station at Peterhead.
- The 2177 MW gas-fired Peterhead power station is to the East of the sub-station marked as SSE.
This second Google Map shows the onshore route of the cable from Wilsthorpe to Drax.
Note.
- Flamborough Head is in the North-East corner of the map.
- Wilsthorpe Beach is at Bridlington a couple of miles South of Flamborough Head.
- The red arrow indicates Drax Power station.
- An onshore underground cable will be installed from landfall in Wilsthorpe to a new onshore converter station built in Drax.
The EGL2 HVDC cable connection from Scotland to England consists of 436km of submarine cable and 69km of onshore cable.
Both converter stations will be on existing power station sites and the major onshore works will be the underground cable between Wilsthorpe and Drax.
Where Does Drax Go From Here?
Currently, Drax power station is a 2595 MW biomass-fired power station.
There are now other large power sources that could replace some or all of the output of Drax power station.
- 2GW of Scottish wind power coming to Drax on Eastern Green Link 2.
- 6 GW of offshore wind is being developed at the Hornsea wind farms.
- 8 GW of offshore wind is being developed at the Dogger Bank wind farms.
- 2.5 GW from the three gas-fired power stations at Keadby, two of which are likely to be fitted with carbon capture.
- 1.8 GW from the proposed hydrogen-fired Keadby Hydrogen power station.
Given the bad feelings many have about Drax burning biomass, with 20.3 GW of electricity, you might think that shutting down Drax would be a simple solution.
But, according to Drax’s Wikipedia entry, it has a unique property.
Despite this intent for baseload operation, it was designed with a reasonable ability for load-following, being able to ramp up or down by 5% of full power per minute within the range of 50–100% of full power.
So Drax could be very useful in balancing the grid, by ramping up and down to fill the gap between production and need.
In addition, there is good biomass. This is from the Wikipedia entry.
A 100,000 tonne pa capacity straw pelletization facility was constructed at Capitol Park, Goole in 2008.
Drax are also promoting BECCS or Bioenergy carbon-capture and storage.
There is a Wikipedia entry for Bioenergy With Carbon Capture And Storage, of which this is the first couple of sentences.
Bioenergy with carbon capture and storage (BECCS) is the process of extracting bioenergy from biomass and capturing and storing the carbon, thereby removing it from the atmosphere. BECCS can theoretically be a “negative emissions technology” (NET).
I do feel that carbon capture and storage is a bit like sweeping the dust under the carpet, when you sweep the floor around it.
But carbon capture and use could be another matter.
This Google Map shows the Drax site.
Note how it is surrounded by agricultural land.
Could the power station be the source of pure carbon dioxide to be fed in greenhouses to flowers, herbs, salad vegetables, tomatoes and other plants?
I suspect there’s productive life left in Drax power station yet!
LionLink
LionLink, that is being developed by National Grid is a new type of interconnector, called a multi-purpose interconnector, that will connect Suffolk and The Netherlands via any convenient wind farms on the way. This means that the electricity generated can go where it is needed most.
I wrote about LionLink in World’s Largest-Of-Its-Kind Power Line To Deliver Clean Power To 1.8m UK Homes And Boost Energy Security.
Other Multi-Purpose Interconnectors
I can see other multi-purpose interconnectors like LionLink being built around the UK.
- There could be one across the Dogger Bank to link out 8 GW of Dogger Bank wind farms with those of the Dutch, Danes and Germans on their section of the bank.
- NorthConnect could be built between Scotland and Norway via some of the wind farms being developed to the North-East of Scotland.
- Could wind farms to the North of Ireland use a multi-purpose interconnector between Scotland and Northern Ireland.
- I can also see one or possibly two, being built across the Celtic Sea to link Devon, South Wales and Southern Ireland via the wind farms being developed in the area.
- Will we also see a Channel multi-purpose interconnector to transfer electricity along the South Coast of England?
Some of these multi-purpose interconnectors could be key to creating a revenue stream, by exporting electricity, to countries in Europe, that have a pressing need for it.
Conclusion
National Grid’s excellent plan will lead to the end of the practice of shutting down wind turbines. The spare electricity will be exported to Europe, which will surely create a good cash-flow for the UK. This in turn will encourage developers to create more wind farms in the seas around the UK’s coasts.
Contracts Signed For Eastern Green Link 2 Cable And Converter Stations
The title of this post, is the same as that of this press release from National Grid.
These four bullet points, act as sub-headings.
- Eastern Green Link 2 (EGL2) is a 525kV, 2GW high voltage direct current (HVDC) subsea transmission cable from Peterhead in Scotland to Drax in England delivered as a joint venture by National Grid and SSEN Transmission
- The joint venture has signed a contract with the Prysmian Group to supply around 1,000km of cable for the project and a contract with Hitachi Energy and BAM for the supply of converter stations at either end of the subsea cable
- Contract signing is a significant milestone for the project as it progresses towards the delivery phase
- EGL2 will be the longest HVDC cable in the UK and the UK’s single largest electricity transmission project ever, providing enough electricity to power two million UK homes
This paragraph outlines the project.
EGL2, a joint venture between SSEN Transmission and National Grid Electricity Transmission (NGET), has reached another milestone in the development of a new subsea electricity superhighway after sealing contracts this week with specialist HVDC cable supplier, Prysmian, and with Hitachi Energy and BAM for the supply of converter stations at either end of the project.
These four paragraphs add more detail.
EGL2 will see the creation of a 525kV, 2GW HVDC subsea transmission cable from Peterhead in Scotland to Drax in England. The longest HVDC cable in the UK and the UK’s single largest electricity transmission project ever, it will provide enough electricity to power two million UK homes.
Prysmian has confirmed it has the capability to deliver the project with its manufacturing facilities for the production of the HVDC cable and its cable laying vessels for the installation in the timescale required for EGL2 to meet its targeted energisation date in 2029, supporting the timely delivery of this project and mitigating risks associated with global constraints in the HVDC supply chain.
Hitachi Energy is partnering with BAM to provide the engineering works and technology for the HVDC converter stations which form the terminals for the HVDC cable and convert direct current to the alternating current used in the onshore transmission network. This latest milestone is another significant step as the project moves towards delivery and, following final approval from Ofgem, work is expected to commence later this year, with a targeted operational date of 2029.
The subsea HVDC cable system is approximately 436km in length with new converter stations at either end to connect it into the existing transmission network infrastructure. HVDC technology provides the most efficient and reliable means of transmitting large amounts of power over long distances subsea.
Note.
- EGL2 can handle 2 GW.
- There is a targeted operational date of 2029.
- Eastern Green Link 2 now has its own web site.
- Most of these links now seem to be HVDC.
A map in the press release, shows the undersea route may be shorter.
It also appears to me, that moving electricity around the UK under the sea, is possibly the most environmentally-friendly and least intrusive way to do it.
We already have four HVDC interconnectors.
There will be many more,
UK Sees Cleanest Power Grid In Q3 As Renewables Grow, Drax Report Says
The title of this post, is the same as that of this article on Renewables Now.
These are the first two paragraphs.
Renewables supplied over 40% of Britain’s electricity demand, the highest ever for the third quarter, helping the country achieve its cleanest power grid on record, according to the Drax Electric Insights report.
In the third quarter carbon dioxide (CO2) emissions from the generation mix were an average of 143 grams per kWh, for the first time below 150 g per kWh over the quarter, says the report, which is commissioned by biomass power generator Drax and prepared by a team from Imperial College London.
We’re certainly getting somewhere!
Amprion Reveals Energy Corridor Project To Bring 8 GW of Offshore Wind To North Rhine-Westphalia
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Amprion Offshore has started working on an energy corridor project that would bring electricity produced by up to 8 GW of offshore wind farms in the North Sea directly to the German state of North Rhine-Westphalia.
This is the first paragraph.
Named Windader West, the energy corridor involves building four offshore grid connection systems that would use the new-generation 2 GW offshore grid technology. Each of the four connections (NOR-15-1, NOR-17-1, NOR-19-1 and NOR-21-1) would have a transmission capacity of 2 GW and, together, the grid connections would transmit enough electricity to cover the energy needs of eight million households in North Rhine-Westphalia.
The linked article has an excellent large scale map.
What Are The UK Doing?
There is a Wikipedia entry for Eastern HVDC, where these are the opening paragraphs.
Eastern HVDC and Eastern HVDC projects are the names used by Ofgem for two planned HVDC submarine power cables from the East coast of Scotland to Northeast England to strengthen the National Grid. The two links combined will deliver 4 GW of renewable energy from Scottish wind farms to England.
Ofgem state that “At an estimated cost of £3.4 billion for the two links, the Eastern HVDC projects would be the largest electricity transmission investment project in the recent history of Great Britain.”
The two links are called.
Note.
- SEGL1 will run from Torness in Southeast Scotland to Hawthorn Pit substation in Northeast England.
- EGL2 will run from Sandford Bay, at Peterhead in Scotland, to the Drax Power Station in Yorkshire, England.
- Both links have a capacity of 2 MW and the DC voltage will be +/-525 kV.
National Grid are also developing Eastern Green Links 3 and 4 and this is the web site.
These paragraphs describe EGL3 and EGL4.
The EGL 3 project will be a new offshore High Voltage Direct Current (HVDC) electrical link from Peterhead to the south Lincolnshire area.
EGL4 will be a new offshore HVDC electrical link from east Scotland, also to the south Lincolnshire area.
Where offshore projects such as these connect with the land, we also have to build onshore infrastructure to enable the clean energy to be transported, to homes and businesses. The onshore infrastructure required for each of these projects will include new converter stations and substations (in both Scotland and England), as well as underground cables to connect everything together.
Together, these projects will transfer 4GW of electricity between Scotland and England. This means that once operational, these projects will provide enough energy to power around 3 million homes.
Note.
- As with the German cables, each carries 2 MW.
- Consultation for EGL3 and EGL4 starts in early 2024.
- Both cables terminate in South Lincolnshire.
In The Lincolnshire Wind Powerhouse, I publish this map of the wind farms in the South of Lincolnshire.
Note.
- The completed Hornsea wind farm will be over 6 MW.
- The future of Norfolk Vanguard is uncertain.
- These wind farms total up to 13524 MW, but without Norfolk Vanguard the total is 11724 MW.
- According to Wikipedia, the Viking Link to Denmark will open on the 1st of January 2024.
I wrote about the Viking Link in Work Begins On New Substation For World’s Longest Electricity Cable Between Denmark and Lincolnshire.
The German And UK Cables Compared
Consider.
- Both have 4 x 2 MW capacity.
- SEGL1 and EGL2 have a cost of £3.4 billion.
- The four German cables are quoted at a total of €16-18 billion here.
- The first two UK cables have planned completion dates of 2027 and 2029.
- German completion dates are given as 2032-2036.
This leads me to this conclusion.
Building interconnectors in the sea is quicker and more affordable than building them on land.
Ørsted Receives Development Consent For 2.6 GW Hornsea Four Offshore Wind Farm
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
The UK Secretary of State for Energy Security and Net Zero has granted development consent to Hornsea Project Four, a 2.6 GW offshore wind farm Ørsted plans to build some 69 kilometres off the Yorkshire Coast.
This is the first paragraph.
The UK government, in a press release issued on 12 July, stated that Hornsea Four was the 126th Nationally Significant Infrastructure Project and 73rd energy application to have been examined by The Planning Inspectorate within the timescales laid down in the Planning Act 2008.
It certainly looks like The Planning Inspectorate has been working overtime.
Note that the four Hornsea wind farms are planned to have at least the following sizes.
- Hornsea 1 – 1218 MW
- Hornsea 2 – 1386 MW
- Hornsea 3 – 2852 MW
- Hornsea 4 – 2600 MW
These four wind farms give the Hornsea complex, a total capacity of at least 8056 MW.
When I worked at ICI in Runcorn in the late 1960s, I used to cross the Runcorn Bridge twice every day and would see Fiddlers Ferry power station, with its eight cooling towers, on the North Bank of the River Mersey to the East. It was generally thought of as a large coal-fired power station.
These pictures of Fiddlers Ferry power station were taken in 2021, from a Liverpool-bound train on the railway bridge.
This Google Map shows the power station.
Note.
- Fiddlers Ferry may have been large for its time at 1989 MW, but it is still less than a quarter of the size of the Hornsea wind farm!
- Drax power station in 1986 at 3960 MW, was larger than Fiddlers Ferry, but was still less than half of the size of Hornsea!
Hornsea wind farm is a true green giant!
This paragraph is from the Hornsea Project 4 section of the Wikipedia entry for the Hornsea wind farms.
Construction of the wind farm was provisionally expected to start in 2023, and be operational by 2027, at the earliest. The project’s capacity is unknown by Ørsted due to the ever increasing size of available wind turbines for the project.
When completed, it could be even bigger.
National Grid And SSEN Transmission Agree Joint Venture For UK’s Largest Ever Electricity Transmission Project
The title of this post is the same as that of this press release from National Grid.
This is the sub-heading.
Joint Venture Agreement Important Milestone In Subsea Electricity Superhighway – Eastern Green Link 2
These four paragraphs outline the project.
National Grid Electricity Transmission (NGET) and SSEN Transmission have taken a big step forward in the development of a new subsea electricity superhighway project along the east coast of Scotland after reaching agreement on the terms of their joint venture (JV).
The ‘Eastern Green Link 2’ (EGL2) project will see the creation of a 525kW, 2GW high-voltage direct current (HVDC) subsea transmission cable from Peterhead in Scotland to Drax in England. The UK’s single largest electricity transmission project ever.
The subsea HVDC cable system is approximately 436km in length with new converter stations at either end to connect it into the existing transmission network infrastructure. HVDC technology provides the most efficient and reliable means of transmitting large amounts of power over long distances subsea.
The EGL2 link will support the growth of new renewable electricity generation, creating jobs and delivering a pathway to net zero emissions targets, as well as helping to alleviate existing constraints on the electricity network.
The Wikipedia entry for Eastern HVDC has a detailed description of the two 2GW Scotland-England interconnectors, that are planned.
This is the first section.
Eastern HVDC and Eastern HVDC projects are the names used by Ofgem for two planned HVDC submarine power cables from the East coast of Scotland to Northeast England to strengthen the National Grid. The two links combined will deliver 4 GW of renewable energy from Scottish wind farms to England.
Ofgem state that “At an estimated cost of £3.4 billion for the two links, the Eastern HVDC projects would be the largest electricity transmission investment project in the recent history of Great Britain.
The Project Background Document for SEGL1 can be viewed here.
EGL2 also has its own web site.
Drax Moves Forward With 600MW Scottish Hydro Scheme
The title of this post, is the same as that of this article on reNEWS.BIZ.
This is the sub-heading.
Studio Pietrangeli has been appointed as owner’s engineer for the project
It looks like this 600 MW project, which will turn Drax’s 440 MW pumped storage hydroelectric power station into 1 GW power station, is finally on its way.
Reading about this project on the Internet, there are still some hurdles to be overcome before the power station is upgraded.
- Planning permission is needed.
- Both the UK and Scottish Governments need to give permission.
- Argyle and Bute Council are not totally behind the project.
My view as a Control Engineer, is that we need it to help balance the grid and allow wind power to play its full part.
The Anonymous Widower 