Moroccan Solar-Plus-Wind To Be Linked To GB In ‘Ground-Breaking’ Xlinks Project
The title of this post, is the same as that of this article on Current News.
This is the first paragraph.
New solar and wind under development in Morocco is to be linked with Britain, with developer Xlinks also seeking to develop a cable manufacturing industry.
It looks to be a very challenging project.
- The HVDC cable will be 3,800 km long.
- The plan envisages 10.5 GW of electricity being generated.
- There will be a 5GW/20GWh battery in Morocco.
- They will export 3.6 GW of electricity to the UK for at least twenty hours per day.
- The electricity will be exported to the UK by a cable that skirts to the West of Spain, Portugal and France.
- The UK end of the cable will be at Alverdiscott in Devon.
All except the last are pushing current technology to the limit.
There is more information on the Morocco-UK Power Project page on the Xlinks web site.
- The company claims, that it can supply renewable energy, that acts like baseload power.
- When complete, it could supply eight percent of the UK’s energy needs.
These are my thoughts.
The 3,800 km. HVDC Link
This paragraph on the project web page describes the HVDC link.
Four cables, each 3,800km long form the twin 1.8GW HVDC subsea cable systems that will follow the shallow water route from the Moroccan site to a grid location in Great Britain, passing Spain, Portugal, and France.
It appears that would be 15200 kilometres of cable.
The longest HVDC link in the world is 2375 km. It’s overland and it’s in Brazil.
I can’t think otherwise, than that this will be a very challenging part of the project.
This Google map shows the area of Morocco, where the energy will be generated.
Note.
- Guelmim Oued Noun is outlined in red.
- The Canary Islands are just off the map to the West.
At least the project will be able to have convenient access to the sea.
This second Google Map shows the <Moroccan, Portuguese and Spanish coasts from Guelmim Oued Noun to the Bay of Biscay.
Note.
- The light blue of the Continental Shelf
- The darker blue of deeper water.
- Guelmim Oued Noun is outlined in red.
- The Canary Islands in the Atlantic Ocean to the West of Guelmim Oued Noun.
- Could the cable bring power to Gibraltar?
- There are other large cities on the route in Morocco, Portugal and Spain.
This third Google Map shows the Bay of Biscay.
Note.
- The light blue of the Continental Shelf
- The darker blue of deeper water.
- There are a series of islands off the Spanish and French coasts.
- Could these islands be used as stepping stones for the cable?
This fourth Google Map shows the Western Approaches to the UK.
Note that the prominent red arrow indicates Alverdiscott, where cable connects to the UK National Grid.
This fifth Google Map shows Alverdiscott to Lundy Island.
Alverdiscott substation is indicated by the red arrow.
This sixth Google Map shows the Alverdiscott substation in relation to the town of Bideford.
Note.
- Bideford is in the North-West corner of the map.
- The red arrow indicates the Alverdiscott substation.
- The River Torridge runs through the town of Bideford.
Could the river be used to bring the cables from Morocco to the substation?
This seventh Google Map shows the Alverdiscott substation
Note the solar farm to the South of the substation.
HVDC Cable
The article also says that they may be building their own cable-manufacturing facility. Does this indicate that there is a shortage of HVDC cable?
Judging by the number of proposed interconnectors proposed for UK waters, it might be a prudent move to improve cable-manufacturing capacity.
10.5 GW Of Zero-Carbon Electricity
This sentence on the project web page describes the power generation.
This “first of a kind” project will generate 10.5GW of zero carbon electricity from the sun and wind to deliver 3.6GW of reliable energy for an average of 20+ hours a day.
It appears that they will be providing a baseload of 3.6 GW to the UK for over twenty hours per day.
Consider.
- Hinckley Point C has an output of 3.2 GW.
- As I write this around midnight, the UK is generating 22.2 GW of electricity.
This paragraph from their web site describes the advantages of Morocco.
Most importantly, Morocco benefits from ideal solar and wind resources, required to develop renewable projects that could guarantee suitable power production throughout the year. It has the third highest Global Horizontal Irradiance (GHI) in North Africa, which is 20% greater than Spain’s GHI and over twice that of the UK. Furthermore, the shortest winter day still offers more than 10 hours of sunlight. This helps in providing production profiles that address the needs of the UK power market, especially during periods of low offshore wind production.
It is not a small power station in the wrong place.
The 5GW/20GWh Battery
That is a massive battery.
The world’s largest lithium-ion battery is Gateway Energy Storage in California. It has a capacity of 250 megawatts for one hour.
The proposed battery in Morocco is eighty times as large.
If I was choosing a battery for this application, I believe the only one that has been demonstrated and might work is Highview Power’s CRYOBattery.
I wrote about Highview’s similar type of application to Morocco in Chile in The Power Of Solar With A Large Battery.
But that installation only will only have storage of half a GWh.
But I believe Highview and their partner; MAN Energy Solutions can do it.
Conclusion
I wish the company well, but I have a feeling that there’s a chance, that this will join the large pile of dead mega-projects.
But I do feel that the solar and wind power station in Morocco will be developed.
And like the project in Chile it will have a large Highview CRYOBattery.
MAN And Highview Power Sign World-First LAES Project Contract
The title of this post, is the same as that of this article on gasworld.
This first paragraph fills out the title and explains the acronyms.
A contract has been signed between the two companies for MAN Energy Solutions (MAN) to provide Highview Power’s (Highview) CRYOBattery facility with its liquid-air energy-storage (LAES) turbomachinery solution.
This contract may apply to only the 50MW/250MWh system at Carrington, near Manchester, but if this system is successful, as Highview have sold nearly a dozen systems worldwide and MAN most certainly has a worldwide support network, it is probably not a small deal for a company like MAN.
Last night, I had a drink with a friend who is the Operations Director for one of London’s largest bus companies. His company is looking seriously at batteries to ease charging of electric buses.
As MAN Energy Solutions are part of the Volkswagen Group could MAN’s interest in Highview’s technology be partly driven by Volkswagen’s need to provide a charging solution for all of the fleets of battery buses, cars, trucks and vans, that they hope to sell in the next few years.
It must surely help in the selling of thousands of electric vans to a company like Amazon, if you can sell them a charging solution, that includes a large eco-friendly battery, that can be fitted into the average site.
MAN Energy Partners With Highview Power On Liquid-Air Energy-Storage Project
The title of this post, is the same as that of this article on Renewable Energy Magazine.
This is the introductory paragraph.
Highview Power, a leader in long duration energy storage solutions, has selected MAN Energy Solutions to provide its LAES turbomachinery solution to Highview Power for its CRYOBattery™ facility, a 50 MW liquid-air, energy-storage facility – with a minimum of 250MWh – located in Carrington Village, Greater Manchester , U.K.
The article is almost a word-for-word copy of this press release from MAN Energy Solutions, which has a similar title to this post and the Renewable Energy Magazine article.
As an Electrical Engineer who has done a lot of work in Project Management, I find these two paragraphs significant.
Construction will proceed in two phases. Phase 1 will involve the installation of a ‘stability island’, to provide near-instantaneous energy grid stabilisation. This will be achieved using a generator and flywheel, among other components. Enabling short-term stabilisation will provide the basis for Phase 2 and the completion of the more complex liquid air energy storage system that includes various compressors, air expanders and cryogenic equipment.
Phase 2 will represent the integration of stability services with a full-scale long-duration energy storage system, and in doing so promote the full integration of renewable energy. The Carrington project will offer a blueprint for future projects and cement the partnership between MAN Energy Solutions and Highview Power.
I first became acquainted with the use of flywheels to stabilise energy, when I was working in Enfield Rolling Mills as a vacation job at sixteen.
The centerpiece of their factory was a rolling mill, which took heated copper wirebars about two metres long amd ten centimetres square and rolled them into thick copper wire just a few millimetres in diameter. The mill was driven by a powerful electric motor, to which it was connected with a 97 tonne flywheel perhaps four metres in diameter in between. The flywheel spun at probably 3000 revolutions per minute.
The wirebar used to meander through the rolling mill several times and at each turn, the head would be caught by a man with a pair of tongs and turned back through the mill.
Each time the wire-bar went through a new pair of rolls the energy needed increased, as there was more rolling to do. So this extra energy was taken from the flywheel!
The rolling mill incidentally had been built by Krupp before the First World War. It still had the Krupp trademark of three interlocked railway tyres all over it. It had ended up in Enfield as reparations after the First World War. Enfield Rolling Mills added a fourth ring to create their own trademark.
It would appear that the kinetic energy of that flywheel could be as high as 1.6 MWh. Flywheels also react very fast.
Flywheel energy storage would appear to be a feasible intermediate energy store for this type of application.
I always remember Shimatovitch, who was the Chief Engineer of the company had jokingly once said that if the flywheel came off its bearings, it would have ended up a couple of miles away and would have demolished all the houses in its path. But he was a man with a dark sense of humour, who had spent most of the Second World War in a Nazi concentration camp.
Could it be that Phase 1 is the installation of a similar system to that I saw working in the 1960s, but upgraded with modern electronics, which exchanges power with the grid to create the stability island referred to in the press release.
In Phase 2 electricity can be passed to and from the CRYOBattery.
Looking at the MAN Energy Solutions web site, I suspect that they don’t care what sort of energy store they connect to the grid.
They would appear to be an excellent choice of engineering partner for Highview Power.
I also wonder how many other applications and customers, they will bring into the partnership.
Conclusion
This looks like a very sensible and low-risk strategy to connect the CRYOBattery to the grid.
The Anonymous Widower 