UK Breakthrough Could Slash Emissions From Cement
The title of this post. is the same as that of this article on the BBC.
This is the sub-heading.
Scientists say they’ve found a way to recycle cement from demolished concrete buildings.
These five paragraphs outline, why cement is such an environmental problem.
Cement is the modern world’s most common construction material, but it is also a huge source of planet-warming gas emissions.
That is because of the chemical reactions when you heat limestone to high temperatures by burning fossil fuels.
Recycling cement would massively reduce its carbon footprint. Researchers say that if they switched to electric-powered furnaces, and used renewable energy like wind and solar rather than fossil fuels, that could mean no greenhouse gases would be released at all.
And that would be a big deal. Cement forms the foundation of the modern economy, both literally and metaphorically.
It is what binds the sand and aggregate in concrete together, and concrete is the most widely used material on the planet after water.
If cement was a country, it would be the third biggest source of emissions after China and the US, responsible for 7.5% of human-made CO2.
This article shows how by applying chemical magic to two effectively unrelated processes; the recycling of steel and the recycling of concrete to make new cement, very high rewards are possible.
Cambridge University are calling their new product electric cement.
As large amounts of electricity are used in an arc furnace, to produce the two products
These paragraphs outline the innovative Cambridge process.
Cement is made by heating limestone to up 1600 Celsius in giant kilns powered by fossil fuels.
Those emissions are just the start. The heat is used to drive carbon dioxide from the limestone, leaving a residue of cement.
Add both these sources of pollution together and it is estimated that about a tonne of carbon dioxide is produced for every tonne of cement.
The team of scientists,, has found a neat way to sidestep those emissions.
It exploits the fact that you can reactivate used cement by exposing it to high temperatures again.
The chemistry is well-established, and it has been done at scale in cement kilns.
The breakthrough is to prove it can be done by piggybacking on the heat generated by another heavy industry – steel recycling.
When you recycle steel, you add chemicals that float on the surface of the molten metal to prevent it reacting with the air and creating impurities. This is known as slag.
The Cambridge team spotted the composition of used cement is almost exactly the same as the slag used in electric arc furnaces.
They have been trialling the process at a small-scale electric arc furnace at the Materials Processing Institute in Middlesbrough.
These are my thoughts.
The Only Inputs Are Steel Scrap, Green Electricity And Used Cement
Consider.
- We probably need to increase the percentage of steel scrap we collect.
- Gigawatts of green electricity in a few years, will be available in those places like Port of Ardersier, Port Talbot, Scunthorpe and Teesside, where large amounts of steel will be needed.
- I can envisage large steel users having their own hybrid electric cement/electric arc furnace plants.
- Used cement would be collected and brought to the plants.
- Years ago, I used to live next door to an old World War II airfield. The farmer who owned the airfield, told me, that the concrete was his pension, as when he needed money, he called a company, who crushed it up for aggregate.
I can see a whole new integrated industry being created.
Conclusion
This could be one of the best inventions since sliced bread.
BW Ideol Unveils Mass Production-Ready Floating Wind Foundation
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
France-based BW Ideol has unveiled its standardised floating foundation product and a blueprint for mass production that could drive costs down across projects.
This is the first paragraph.
With over 22 GW already awarded in Scotland, around 8 GW in the US, and several GW currently being awarded or in the tendering phase elsewhere in the world, the floating wind is now entering an industrialization phase, said BW Ideol.
It looks like the French have come up with a solution that’s needed.
These are previous posts about BW Ideol.
- BW Ideol And Holcim To Explore Use of Low-Carbon Concrete In Floating Offshore Wind
- BW Ideol, ABP To Explore Serial Production Of Floating Wind Foundations At Port Talbot
There is also this video of proposed serial production of BW Ideol floaters at the Port of Ardersier.
This Google Map show the area of Scotland to the North-East of Inverness Airport.
Note.
- Inverness Airport indicated by the red arrow.
- Ardersier village in the middle of the map on the bay.
- Fort George is at the North end of the bay.
The Port of Ardersier is the large slab of concrete in the North-East corner of the map, the Carse of Ardersier marked below it.
BW Ideol are claimining they can build one floater a week or one GW a year.
Two Ports Advance To Next Stage Of UK Gov Funding For Floating Wind
The title of this post, is the same as this article in Ground Engineering.
This is the sub-heading.
Port Talbot in Wales and Port of Cromarty Firth in Scotland have advanced to the next stage of a government funding scheme to develop port infrastructure that will facilitate floating offshore wind.
These three paragraphs introduce the developments.
The UK Government has agreed that the port expansion projects should progress to the next stage of its floating offshore wind manufacturing investment scheme (FLOWMIS) known as the primary list phase.
Up to £160M of grant funding will be allocated to certain investments in the floating offshore wind sector under the scheme.
The money will go towards funding the basic infrastructure necessary to support the assembly of floating offshore wind turbines. This includes the construction, replacement and upgrade of port infrastructure to accommodate large components such as towers and blades, as well as steel and concrete foundations and mooring cables required for floating offshore wind.
The article also says this about Port Talbot.
The Future Port Talbot project in south Wales would see the port transformed into a major hub for the manufacturing, assembly, and integration of floating offshore wind components for projects in the Celtic Sea.
Associated British Ports (ABP), which owns and operates the port, welcomed the government’s decision.
Note.
- Port Talbot will almost certainly use locally produced steel.
- There appears to be at least 4,832 MW of floating wind to be developed in the Celtic Sea in the next few years.
Port Talbot would be ideally placed to handle both English and Welsh coasts and waters in the Celtic Sea.
The article also says this about the Port of Cromarty Firth.
The Port of Cromarty Firth (PoCF) on the east coast of the Scottish Highlands will undergo a fifth phase of expansion work. This will develop the facilities and infrastructure necessary to enable the port to support offshore wind infrastructure projects off the coast of Scotland.
Over £50M has also been earmarked for the port’s expansion.
There appears to be at least 15,216 MW of floating wind to be developed in Scotland in the next few years.
Both ports seem to have welcomed the funding.
Adding the plans for Scotland and the Celtic Sea together gives a figure of just over 20 GW of floating wind to be developed in the next few years.
Conclusion
Surely, the award of funding for floating wind, is a good way to create a new industry and jobs in these two areas and also perform some sensible levelling-up.
I also suspect that spending £160 million to enable the construction of 20 GW of floating wind farm is a good return on the investment.
Ørsted Secures Exclusive Access To Lower-Emission Steel From Dillinger
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Ørsted will be offered the first production of lower-emission steel from German-based Dillinger, subject to availability and commercial terms and conditions. The steel plates are intended to be used for offshore wind monopile foundations in future projects.
These three paragraphs outline the deal.
Under a large-scale supply agreement entered into in 2022, Ørsted will procure significant volumes of regular heavy plate steel from 2024, giving the company access at scale to and visibility of the most crucial raw material in offshore wind while supporting Dillinger to accelerate investments in new lower-emission steel production, according to Ørsted.
The Danish renewable energy giant expects to be able to procure lower-emission steel produced at Dillinger’s facility in Dillingen, Germany, from 2027-2028.
Taking the current technology outlook into account, the reduction of the process-related carbon emissions from production is expected to be around 55-60 per cent compared to conventional heavy plate steel production, Ørsted said.
Increasingly, we’ll see lower emission steel and concrete used for wind turbine foundations.
This press release on the Dillinger web site is entitled Historic Investment For Greater Climate Protection: Supervisory Boards Approve Investment Of EUR 3.5 billion For Green Steel From Saarland.
These are two paragraphs from the press release.
Over the next few years leading up to 2027, in addition to the established blast furnace route, the new production line with an electric arc furnace (EAF) will be built at the Völklingen site and an EAF and direct reduced iron (DRI) plant for the production of sponge iron will be built at the Dillinger plant site. Transformation branding has also been developed to visually represent the transformation: “Pure Steel+”. The message of “Pure Steel+” is that Saarland’s steel industry will retain its long-established global product quality, ability to innovate, and culture, even in the transformation. The “+” refers to the carbon-neutrality of the products.
The availability of green hydrogen at competitive prices is a basic precondition for this ambitious project to succeed, along with prompt funding commitments from Berlin and Brussels. Local production of hydrogen will therefore be established as a first step together with the local energy suppliers, before connecting to the European hydrogen network to enable use of hydrogen to be increased to approx. 80 percent. The Saarland steel industry is thus laying the foundation for a new hydrogen-based value chain in the Saarland, in addition to decarbonizing its own production. In this way, SHS – Stahl-Holding-Saar is supporting Saarland on its path to becoming a model region for transformation.
It sounds to me, that Tata Steel could be doing something similar at Port Talbot.
- Tata want to build an electric arc furnace to replace the blast furnaces.
- There will be plenty of green electricity from the Celtic Sea.
- RWE are planning a very large hydrogen electrolyser in Pembroke.
- Celtic Sea offshore wind developments would probably like a supply of lower emission steel on their door-step.
I would suspect, that Welsh steel produced by an electric arc furnace will match the quality of the German steel, that is made the same way.
Pension Power Backing For New Battery Energy Storage Plant
The title of this post, is the same as that of this article on Nation.Cymru.
These paragraphs outline the project,
A new battery energy storage plant at the site of a decommissioned power station will be funded by Welsh pensioners.
The plan for the facility at the former Uskmouth B Power Station at the Gwent Wetlands on the edge of Newport, was approved by the city council’s planning committee this January.
The batteries will store excess power during times of “excess supply” and then put that electricity back into the grid when demand is higher.
The Greater Gwent Pension Fund, which manages the retirement savings of more than 65,000 members from Blaenau Gwent, Caerphilly, Monmouthshire Newport and Torfaen councils as well as 52 other active employers in the Gwent region, has revealed it is investing in the project.
According to their Wikipedia entry, the Uskmouth power stations have had rather a chequered history and both appear to be currently non-productive.
- The original coal-fired Uskmouth A has been demolished and the site is now occupied by an 832 MW gas-fired CCGT power station. Currently, it is in a ‘dormant’ state, after its owner entered administration.
- The original coal-fired Uskmouth B has been converted and now can generate 363 MW on a mixture of biomass and waste plastic. Uskmouth B is currently being demolished.
This press release from Quinbrook Infrastructure Partners is entitled Quinbrook To Build Large-Scale Battery Storage Project At Uskmouth, South Wales.
This is the sub-heading.
Uskmouth will be one of the largest storage projects in the UK and will directly support the UK’s energy transition.
These first two paragraphs outline the project.
Quinbrook Infrastructure Partners (“Quinbrook”), a specialist investment manager focused on renewables, storage and grid support infrastructure has acquired the exclusive development rights for one of the UK’s largest battery storage projects to date.
The planned 230MW / 460MWh Battery Energy Storage System (“BESS”), will be located at the site of the former Uskmouth coal fired power station in south Wales (“Project Uskmouth”) and will seek to utilise existing power transmission infrastructure and provide a new lease of life to the area. Uskmouth was acquired from Simec Atlantis Energy Limited (“SAE”). Quinbrook has partnered with Energy Optimisation Solutions Limited (“EOS”) in the origination and development of Project Uskmouth, which represents a major anchoring project in the planned re-development and regeneration of the Uskmouth site into a Sustainable Energy Park that will support innovative future industry. Quinbrook considers these types of regeneration projects as key to making meaningful contributions to delivery of the Government’s Levelling Up ambitions.
Note.
- The battery can supply 230 MW for two hours.
- It looks like the battery will replace the older of the two power stations and work with the relatively-modern 832 MW gas-fired CCGT power station.
- Will they act as backup to renewables?
As there are very few renewables in the area, will this work with the wind farms being developed in the Celtic Sea or are Quinbrook anticipating wind farms South of Newport in the Bristol Channel?
I have a few thoughts.
Will Uskmouth Work With Hinckley Point C?
This Google Map shows the relative locations of Uskmouth and Hinckley Point C.
Note.
- Uskmouth is just South of Newport, in the North-East corner of the map.
- I estimate that Uskmouth and Hinckley Point C are 24.7 miles apart.
A cable across the Bristol Channel would surely increase the energy security of South Wales.
Will There Be Wind Farms In The Bristol Channel?
I feel that this is inevitable.
This document on the Welsh Government web site is entitled Future Potential For Offshore Wind In Wales, was written by The Carbon Trust.
This paragraph is the document’s assessment of wind farms in the Bristol Channel.
Despite high energy demand and good infrastructure, environmental conditions in the Bristol Channel
makes this area challenging for offshore wind development. In addition to lower average wind speeds,
the Bristol Channel has complex seabed, including areas of hard rock, and is exposed to strong tidal
currents from the Severn Estuary. Seabed conditions and tidal currents were the main drivers behind
cancellation of the Atlantic Array project and it is considered unlikely that a developer would look to
revive this site in the near-term, particularly given competition with other more favourable UK sites.
That doesn’t seem very promising.
But this is the document’s assessment of wind farms in the Pembrokeshire Atlantic area.
Exposure to the prevailing south-westerly Atlantic wind and swells means that the waters off
Pembrokeshire have excellent wind speeds, often exceeding 10 m/s, but also a harsher wave
environment than elsewhere in Wales. Significantly, water depths quickly increase to over 50m,
suggesting that floating foundations are likely to be required, particularly if projects are located
further from shore, which is likely given constraints from environmental impact and seascape near to
the Pembrokeshire Coast National Park.Grid infrastructure is constrained for thermal generation but should not be a barrier to new
renewables. The Greenlink interconnector could also support the addition of new capacity. The region
has good port infrastructure at Milford Haven and Pembroke Dock, which is already actively pursuing
upgrades to future proof the port for potential offshore wind deployment.
That is a lot more promising.
- Some demonstration wind farms are under development.
- Hopefully, the steel would be available at Port Talbot.
- I can see this area, having almost 50 GW of floating wind.
I do feel though, that once the sea off Pembrokeshire is full of wind farms, that developers will turn their attention to the more difficult waters of the Bristol Channel.
Is The Uskmouth BESS A Good Investment?
The Nation.Cymru article discusses this and what they say is well worth reading.
My feelings are that the BESS will be very busy balancing electricity on the South Wales Coast and to and from Ireland using the 500 MW Greenlink Interconnector, which opens this year.
These electrical systems are relatively easy to model and I suspect Quinbrook wouldn’t be investing, if the BESS was not going to generate a substantial income.
BW Ideol, ABP To Explore Serial Production Of Floating Wind Foundations At Port Talbot
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
BW Ideol and Associated British Ports (ABP) have signed a memorandum of understanding (MOU) that will see the manufacturer of concrete floating wind foundations and ABP investigating the feasibility of serial production at Port Talbot. The MOU has been signed in preparation for the Celtic Sea leasing round, BW Ideol said on Monday (11 December).
These two paragraphs outline the plans of BW Ideol and ABP have for Port Talbot.
According to the company, Port Talbot is the only Celtic Sea port with the scale and technical capabilities to fully maximise the Celtic Sea supply chain opportunity and is ideally located as a manufacturing base since it lies 120-140 kilometres from the floating offshore wind areas outlined by The Crown Estate for the upcoming leasing round.
The news on the MOU between ABP and BW Ideol comes shortly after ABP announced plans to invest around GBP 500 million (approximately EUR 573 million) to upgrade a site in Port Talbot and turn it into a major floating offshore wind hub.
This Google Map shows Port Talbot Port.
Note.
- It also looks like there is a Heidelberg Cement facility at the South side of the port.
- Port Talbot also has a Tata steelworks.
- The railway and the M4 Motorway are nearby.
- There’s certainly a lot of water.
The port appears well-placed for raw materials and there is quite a bit of free space to build and launch the concrete floaters.
This page on the BW Ideol web site describes their Floatgen demonstrator.
The first section is headed by BW Ideol’s First Floater In Operation, where this is said.
Built around a European consortium of 7 partners, Floatgen is a 2MW floating wind turbine demonstrator installed off the coast of Le Croisic on the offshore experimentation site of the Ecole Centrale de Nantes (SEM-REV). This project is being supported by the European Union as part of the FP7 programme. Floatgen is France’s first offshore wind turbine. 5 000 inhabitants are supplied with its electricity.
It looks like it is or almost is a proven system.
The page talks of two large benefits.
- Innovation at all levels.
- The highest local content of any floating wind turbine.
For the second, the following is said
In comparison to other steel floating foundations, which are imported from abroad, the use of concrete for BW Ideol’s floating foundation allows the construction to be located as close as possible to the deployment site. Construction at the Saint-Nazaire port was therefore a natural and optimal solution and has created a lot of local content. Additionally, the mooring system was manufactured by LeBéon Manufacturing in Brittany. For the majority of all other components or logistical activities, the Floatgen partners have also opted for suppliers within the Saint-Nazaire region.
Note.
- Will ABP and BW Ideol use a similar philosophy at Port Talbot?
- Will low-carbon concrete be used to construct the floaters?
I can certainly see the logic of BW Ideol and ABP getting together at Port Talbot.
Is There A Virtuous Circle In The Installation Of Wind Farms?
Because we are developing so much offshore wind turbine capacity, this will result in two things.
- A big demand for steel for the foundations and floats for wind turbines.
- A large amount of electricity at a good price.
In my view the UK would be the ideal country to develop an integrated steel and wind turbine foundation/float capability.
There will also be a strong demand for deep water ports and sea lochs to assemble the floating turbines.
Our geography helps in this one. We also have Milford Haven, which is just around the corner from Port Talbot. Scunthorpe is on the River Trent, so could we assemble floats and foundations and take them by barge for assembly or installation.
We probably need an integrated capability in Scotland.
Conclusion
It looks to me, that there is a virtuous circle.
- The more offshore wind turbine capacity we install, the more affordable electricity we will have.
- This will in turn allow us to make more steel.
- If this steel was produced in an integrated factory producing foundations and floats for wind farms, this would complete the circle.
- It would also be inefficient to make the foundations thousands of miles away and tow them to UK waters.
Any improvements in costs and methods, would make the system more efficient and we would have more wind turbines installed.
It looks to be a good idea.
Global Centre Of Rail Excellence Takes A Step Forward With Formal Partnership Arrangements
The title of this post is the same as that of this article on Wales Online.
This is the first two paragraphs.
The planned £100m Global Centre of Rail Excellence on the border of Neath Port Talbot and Powys will take a step closer to reality when councillors meet to formalise partnership arrangements next week.
Plans for the centre which were announced by the Welsh Government last summer involve a new facility to test trains in the UK.
In my view this centre is much needed, so that trains manufactured and modified in the UK, can be adequately tested in as short a time as possible.
Sending trains to be tested half-way across Europe, as currently sometimes happens, is not an efficient method of getting trains into service.
The Anonymous Widower 