Scotland And AquaVentus Partner On North Sea Hydrogen Pipeline Plans
The title of this post, is the same as that of this article on H2-View.
These four paragraphs introduce the deal and add some detail.
Hydrogen Scotland has committed to working with the AquaDuctus consortium on cross-border infrastructure concepts to connect Scotland’s offshore wind power to hydrogen production in the North Sea.
Under a Memorandum of Understanding (MOU), the two organisations plan to combine Scotland’s offshore wind with AquaVentus’ offshore electrolysis expertise, linking export and import goals across the North Sea.
The AquaDuctus pipeline is a planned offshore hydrogen link designed to carry green hydrogen through the North Sea, using a pipes and wires hybrid approach. The German consortium plans 10GW of offshore electrolysers in the North Sea, producing around one million tonnes of green hydrogen.
The pipeline design allows offshore wind farms to deliver electricity when the grid needs it, or convert power into hydrogen via electrolysis and transport it through pipelines.
Germany is embracing hydrogen in a big way.
- I introduce AquaVentus in AquaVentus, which I suggest you read.
- AquaVentus is being developed by RWE.
- AquaVentus connects to a German hydrogen network called H2ercules to actually distribute the hydrogen.
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 will deliver hydrogen to Germany.
- There is a link to Esbjerg in Denmark, that is marked DK.
- There appears to be an undeveloped link to Norway, which goes North,
- There appears to be an undeveloped link to Peterhead in Scotland, that is marked UK.
- There appears to be a link to just North of the Humber in England, that is marked UK.
- Just North of the Humber are the two massive gas storage sites of Aldbrough owned by SSE and Rough owned by Centrica.
- Aldbrough and Rough gas storage sites are being converted into two of the largest hydrogen storage sites in the world!
- 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?
When it is completed, AquaVentus will be a very comprehensive hydrogen network.
I believe that offshore electrolysers could be built in the area of the Hornsea 4, Dogger Bank South and other wind farms and the hydrogen generated would be taken by AquaVentus to either Germany or the UK.
- Both countries get the hydrogen they need.
- Excess hydrogen would be stored in Aldbrough and Rough.
- British Steel at Scunthorpe gets decarbonised.
- A 1.8 GW hydrogen-fired powerstation at Keadby gets the hydrogen it needs to backup the wind farms.
Germany and the UK get security in the supply of hydrogen.
Conclusion
This should be a massive deal for Germany and the UK.
3 GW Dogger Bank South Offshore Wind Farms Reach New Development Stage
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
The UK Planning Inspectorate has accepted into the examination phase the Development Consent Order (DCO) application for the Dogger Bank South (DBS) Offshore Wind Farms developed by RWE and Masdar.
The first two paragraphs give a brief description of the wind Farm.
The DBS East and DBS West offshore wind farms, which could provide electricity for up to three million typical UK homes, are located in shallow waters on the Dogger Bank over 100 kilometres off the northeast coast of England. The acceptance of the DCO application moves the projects into the pre-examination phase, which will become subject to a public examination later in 2024.
Together, the projects will have up to 200 turbines with a combined estimated capacity of 3 GW. Investment by RWE and Masdar during development and construction is predicted to deliver an economic contribution (Gross Value Added) to the UK of almost GBP 1 billion, including GBP 400 million in the Humber region.
There is a detailed map in the article on offshoreWIND.biz.
The Next Steps
These are given in the article.
The next steps for the projects, following a successful Development Consent Order, would be to secure Contracts for Difference (CfD), followed by financing and construction, the developers said.
It certainly looks like the 3 GW Dogger South Bank Wind Farm is on its way.
These are my thoughts about the project.
The Turbines To Be Used
The article says this about the turbines.
Together, the projects will have up to 200 turbines with a combined estimated capacity of 3 GW.
This means that the turbines will be 15 MW.
In RWE Orders 15 MW Nordseecluster Offshore Wind Turbines At Vestas, I said this.
Does this mean that the Vestas V236-15.0 MW offshore wind turbine, is now RWE’s standard offshore turbine?
This would surely have manufacturing, installation, operation and maintenance advantages.
There would surely be advantages for all parties to use a standard turbine.
It’s A Long Way Between Yorkshire And The Dogger Bank
The article says it’s a hundred kilometres between the wind farm and the coast of Yorkshire.
Welcome To The Age Of Hydrogen
This is the title of this page of the RWE web site.
The page starts with this paragraph.
RWE is actively involved in the development of innovative hydrogen projects. The H2 molecule is considered to be an important future building block of a successful energy transition. RWE is a partner in over 30 H2 projects and is working on solutions for decarbonising the industry with associations and corporations like Shell, BASF and OGE. Hydrogen projects are comprehensively supported in the separate Hydrogen department of the subsidiary RWE Generation.
AquaVentus
I also suggest, that you read this page on the RWE web site called AquaVentus.
The page starts with this RWE graphic.
It appears that 10.3 GW of hydrogen will be created by wind farms and piped to North-West Germany.
These two paragraphs outline the AquaVentus initiative .
Hydrogen is considered the great hope of decarbonisation in all sectors that cannot be electrified, e.g. industrial manufacturing, aviation and shipping. Massive investments in the expansion of renewable energy are needed to enable carbon-neutral hydrogen production. After all, wind, solar and hydroelectric power form the basis of climate-friendly hydrogen.
In its quest for climate-friendly hydrogen production, the AquaVentus initiative has set its sights on one renewable energy generation technology: offshore wind. The initiative aims to use electricity from offshore wind farms to operate electrolysers also installed at sea on an industrial scale. Plans envisage setting up electrolysis units in the North Sea with a total capacity of 10 gigawatts, enough to produce 1 million metric tons of green hydrogen.
The page also gives these numbers.
- Total Capacity – 10 GW
- Tonnes Of Green Hydrogen – 1 million
- Members – 100 +
The web site says this about commissioning.
Commissioning is currently scheduled for early/mid 2030s.
The Germans can’t be accused of lacking ambition.
AquaVentus And The UK
This video shows the structure of AquaVentus.
I clipped this map from the video.
Note.
- There is a link to Denmark.
- There appears to be a undeveloped link to Norway.
- There appears to be a 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 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.
AquaVentus And Aldbrough And Rough Gas Storage
Consider.
- In The Massive Hydrogen Project, That Appears To Be Under The Radar, I describe the Aldbrough Gas Storage.
- In Wood To Optimise Hydrogen Storage For Centrica’s Rough Field, I describe Centrica’s plans to turn Rough Gas Storage into the world’s largest hydrogen store.
- There is a small amount of hydrogen storage at Wilhelmshaven.
It looks like the East Riding Hydrogen Bank, will be playing a large part in ensuring the continuity and reliability of AquaVentus.
Dogger Bank South And AquaVentus
This Google Map shows the North Sea South of Sunderland and the Danish/German border.
Note.
- Sunderland is in the top-left hand corner of the map.
- A white line in the top-right corner of the map is the Danish/German border.
- Hamburg and Bremen are in the bottom-right hand corner of the map.
If you lay the AquaVentus map over this map, I believe that Dogger Bank South wind farm could be one of the three 2 GW wind farms on the South-Western side of the AquaVentus main pipeline.
- Two GW would be converted to hydrogen and fed into the AquaVentus main pipeline.
- One GW of electricity would be sent to the UK.
But this is only one of many possibilities.
Hopefully, everything will be a bit clearer, when RWE publish more details.
Conclusion
I believe, that some or all of the Dogger Bank South electricity, will be converted to hydrogen and fed into the AquaVentus main pipeline.
I also believe, that the hydrogen stores in the East Riding of Yorkshire, will form an important part of AquaVentus.
Ørsted, Simply Blue, Subsea7 Submit Application For 100 MW Scottish Floating Wind Farm
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Ørsted, Simply Blue Group and Subsea7, through their joint venture partnership in Scotland, have submitted an offshore consent application for the proposed 100 MW Salamander floating offshore wind farm, one of the 13 projects selected in Scotland’s Innovation and Targeted Oil and Gas (INTOG) leasing round.
The article starts with a map that shows the location of the Salamander floating offshore wind farm and it shows how the sea is getting very crowded 35 kilometres off Peterhead.
This map shows the various ScotWind leases, around the North of Scotland.
The numbers are Scotwind’s lease number in their documents.
These are the Scotwind wind farms to the North-East of Scotland.
- 1 – BP Alternative Energy Investments – 859 km² – 2.9 GW – Fixed
- 2 – SSE Renewables – 859 km² – 2.6 GW – Floating
- 3 – Falck Renewables Wind – 280 km² – 1.2 GW – Floating
- 4 – Shell – 860 km² – 2.0 GW – Floating
- 5 – Vattenfall – 200 km² – 0.8 GW – Floating
- 6 – DEME – 187 km² – 1.0 GW – Fixed
- 9 – Ocean Winds – 429 km² – 1.0 GW – Fixed
- 10 – Falck Renewables Wind – 134 km² – 0.5 GW – Floating
- 11 – Scottish Power Renewables – 684 km² – 3.0 GW – Floating
- 12 – BayWa r.e. UK – 330 km² – 1.0 GW – Floating
Note.
- Salamander is located to the South of wind farms 10, 11 and 12 and to the North-West of wind farm 5.
- These windfarms total up to 16 GW.
- 4.9 GW are fixed foundation wind farms.
- 11.1 GW are floating wind farms.
These are my thoughts.
The Salamander Project
In the big scheme of things, the 100 MW Salamander wind farm, is rather a tiddler of a wind farm.
On the Salamander wind farm web site, a section gives the Project Goals.
- Our innovative pre-commercial stepping-stone concept will use novel floating foundations to (i) maximise Scottish content, (ii) enable the Scottish supply chain to gear up for the future floating offshore wind commercial opportunities in ScotWind and (iii) reduce the financial, environmental and technology risks of floating offshore wind.
- The Salamander project will contribute to the Scottish Government and UK Government net-zero targets. The project can contribute to the Scottish government’s target of 11 GW of installed offshore wind by 2030, as well as the UK government’s target of 5 GW of operational floating offshore wind by the same date.
- We are dedicated to developing a sustainable and transformative project, working with the oceans, and enabling communities to benefit from Project Salamander. Therefore, we commit to having a continuous and strong stakeholder and community engagement.
It appears to me, that the Salamander project will be a pathfinder for the 11.1 GW of floating wind farms to be built off Peterhead.
Bringing The Electricity South
National Grid are building four interconnectors between Eastern Scotland and Eastern England.
- Eastern Green Link 1 – Torness and Hawthorn Pit
- Eastern Green Link 2 – Peterhead and Drax
- Eastern Green Link 3 – Westfield and Lincolnshire
- Eastern Green Link 4 – Peterhead and Lincolnshire
Note.
- All interconnectors are 2 GW.
- All interconnectors are offshore for a long part of their route.
- It also appears that National Grid are burying much of the onshore sections.
But the 4 GW of interconnectors will only be able to bring a quarter of the offshore electricity generated in the Peterhead area to the South.
What Will Happen To The Excess Electricity?
Consider.
- There could be 16 GW of planned offshore wind power around Peterhead and North-East Scotland.
- There is only 4 GW of interconnector capacity between Peterhead and Eastern England.
- There is another 6.8 GW of electricity around North-West Scotland.
- There is 2.8 GW of electricity being developed to the East of Shetland.
- The Crown Estate is thinking of increasing the size of some offshore wind farms.
It is likely, that other wind farms will be built in the seas around the North of Scotland.
It appears that the North of Scotland could have at least 20 GW of excess electricity.
Possible solutions would include.
- Developing energy intensive industries like metal refining.
- More interconnectors to Denmark, England, Ireland and Norway.
- Storage of the electricity in giant pumped storage hydroelectric power stations.
- Creation of green hydrogen for export.
Note.
- Aluminium refining has been developed in the North of Scotland before.
- More interconnectors are a possibility, especially as Scotland is developing cable manufacturing capacity.
- Some maps show extra interconnectors between West Scotland and Merseyside.
- At least 70 GWh of pumped storage hydroelectric power stations are being developed along the Great Glen.
- I suspect that the pumped storage hydroelectric power stations could be connected to the wind farms, by cables under the waters of Loch Ness.
But surely, production of green hydrogen for export would be a very good way to go.
- Extra electrolysers could be added as required.
- Because of the interconnectors down both East and West Coasts, electrolysers could be built in England, where there is a large need for hydrogen.
- Hydrogen would be exported initially by tanker ships.
- At some point in the future, it might be viable to build a hydrogen pipeline to connect to the growing European hydrogen network.
The giant pumped storage hydroelectric power stations and the hydrogen electrolysers would be sized to make sure, that no wind power is never wasted.
Conclusion
The 100 MW Salamander floating wind farm may only be small, but it will prove the technology, the manufacturing and the supply chains, so that Scotland can have a second energy boom from the North Sea.
But this boom will certainly last longer than a hundred years.
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.
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.
Ofgem OKs Transmission Investments Needed For UK’s 2030 Offshore Wind Target
The title of this post, is the same as that, of this article on offshoreWIND.biz.
This is the sub-heading.
Ofgem has approved the strategic electricity transmission reinforcements required to deliver the UK Government’s 50 GW offshore wind by 2030 target, set out as part of the regulator’s Accelerated Strategic Transmission Investment (ASTI) framework.
A map then shows the principle new transmission reinforcements.
These include two 2 GW subsea HVDC links from Peterhead to England, both of which will be taken forward as joint ventures with National Grid Electricity Transmission (NGET), a 2 GW subsea HVDC link from Spittal in Caithness, connecting to Peterhead, as well as a 1.8 GW subsea HVDC link from Arnish on the Western Isles to the Beauly area near Inverness.
The approval also implies 400 kV onshore reinforcements, between Beauly, Blackhillock, New Deer and Peterhead; between Beauly, Loch Buidhe and Spittal; and between Kintore, Tealing and Westfield; and uprating the existing Beauly to Denny line to enable 400 kV operation on both circuits.
All cables seem to lead to Peterhead.
New Electricity ‘Superhighways’ Needed To Cope With Surge In Wind Power
The title of this post, is the same as that of this article on the Telegraph.
This is the first two paragraphs.
Energy companies are pushing for the rapid approval of new electricity “superhighways” between Scotland and England amid fears that a lack of capacity will set back the country’s wind power revolution.
Businesses including SSE and Scottish Power are calling on the industry regulator Ofgem to approve a series of major new north-south power cables in a bid to ease congestion on the existing electricity network.
These points are mentioned in the article.
- Current capacity is 6 GW, which even now is not enough.
- Another 17 GW of capacity will be needed by 2033.
- Wind farms in Scotland have been switched off and replaced by gas-fired power stations because of a lack of grid capacity.
- Another 25 GW of wind farms could be built after leases were awarded last month.
Two North-South interconnectors are being planned.
Peterhead And Drax
This is being proposed by SSE and National Grid.
- It will be an undersea cable.
- It will be two cables, each with a capacity of 2 GW.
- Peterhead and Drax power station are four hundred miles apart by road and 279 miles as the seagull flies, as a lot of the route would be over the sea. So an undersea connection would appear to be sensible.
- Peterhead is on the coast, so connecting an undersea interconnector shouldn’t be too challenging or disruptive to the locals.
- Drax power station is a 4 GW power station and the largest in the UK, so it must have good grid connections.
This Google Map shows the location of Drax power station in relation to Hull, Scunthorpe and the rivers in the area.
Note.
- Drax is marked by the red arrow in the West of the map.
- The large body of water in the East is the Humber Estuary.
- Hull is on the North Bank of the Humber.
- Scunthorpe, which is famous for its steel industry is South of the Humber in the middle of the map.
- To the West of Scunthorpe the Humber splits into the Trent and the Ouse.
- The Ouse leads all the way to Drax power station.
I suspect an undersea cable could go up the Humber and Ouse to Drax power station.
Is it a coincidence that both Drax power station and the proposed link to Peterhead are both around 4 GW?
Consider.
- Drax is a biomass power station, so it is not a zero carbon power station.
- Drax produces around six percent of the UK’s electricity.
- Most of the biomass comes by ship from North America.
- Protest groups regularly have protests at Drax because of its carbon emissions.
- Drax Group are experimenting with carbon capture.
- Drax is a big site and a large energy storage system could be built there.
- Wind is often criticised by opponents, saying wind is useless when the wind doesn’t blow.
- The Scots would be unlikely to send power to England, if they were short.
This is also said about Drax in Wikipedia.
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.
I take this it means it can be used to top up electricity generation to meet demand. Add in energy storage and it could be a superb load-follower.
So could the similar size of the interconnector and Drax power station be deliberate to guarantee England a 4 GW feed at all states of the wind?
I don’t think it is a coincidence.
Torness And Hawthorn Pit And Torness and South Humberside
These two cables are being proposed by Scottish Power.
- Each will be two GW.
- Torness is the site of the 1.36 GW Torness nuclear power station, which is likely to be decommissioned before 2030.
- Torness will have good grid connections and it is close to the sea.
- Hawthorn Pit is a large closed coal mine to the North of Newcastle, with a large substation close to the site. I suspect it will be an ideal place to feed power into the grid for Newcastle and it is close to the sea.
- Just South of Hawthorn Pit are the 1.32 GW Hartlepool nuclear power station, which will be decommissioned in 2024 and the landfall of the cables to the massive Dogger Bank wind farm.
- As I showed earlier with Drax, the Humber would be an ideal estuary to bring underwater power cables into the surrounding area. So perhaps the cable will go to Scunthorpe for the steelworks.
- As at Drax, there is backup in South Humberside, but here it is from the two Keadby gas-fired power stations.
The article in the Telegraph only gives the briefest of details of Scottish Power’s plans, but I suspect, that given the locations of the ends of the interconnectors, I suspect the cables will be underwater.
Conclusion
It strikes me that all three interconnectors have been well thought thought and they serve a variety of objectives.
- Bring Scottish wind power, South to England.
- Connect wind farms to the two nuclear power station sites at Hartlepool and Torness, that will close at the end of the decade.
- Allow the big 4 GW biomass-fired station at Drax to back up wind farms and step in when needed.
- Cut carbon emissions at Drax.
- Use underwater cables as much as possible to transfer the power, to avoid the disruption of digging in underground cables.
It looks to be a good plan.
The Anonymous Widower 