Suffolk: Sizewell C To Explore ‘Innovative’ Waste Heat Lido
The title of this post, is the same as that, of this article on the East Anglian Daily Times.
This is the sub-heading.
The developers of the new Sizewell C nuclear power station have expressed an interest in an “innovative” plan to use waste heat from the plant to heat a new lido.
And this is the first paragraph.
Creating the outdoor pool was one of a number of ideas contained within the Leiston masterplan – a blueprint for transforming the Suffolk town – and now the Sizewell C company has pledged to explore the proposal with the town council.
This map shows the town of Leiston and the Sizewell power stations site.
Note.
- Leiston is in the South-West corner.
- The power station site is in the North-East corner.
I have a few thoughts.
Pink Hydrogen
Pink hydrogen is zero-carbon hydrogen produced using nuclear power.
The production of hydrogen is already part of the plans for Freeport East, which I wrote about in Ryze Hydrogen’s Suffolk Freeport Hydrogen Vision Takes Shape.
In that article, I said this.
This would mean that Sizewell’s 6 MW electrolyser could be producing around a thousand tonnes of hydrogen per year or 2.6 tonnes per day.
The more efficient high temperature electrolysis can be used, using some of the waste heat from the nuclear power station. I wrote about this in Westinghouse And Bloom Energy To Team Up For Pink Hydrogen.
I also suspect that it may be more efficient to use seawater to produce the hydrogen.
District Heating
The waste heat can also be used for district heating.
A Train Service To Ipswich
This Google Map shows the railway through Leiston, which is currently used to bring fuel to Sizewell B power station and remove waste.
Note.
- The railway starts in the North-West corner of the map.
- The green dot in that corner marks Leiston cemetery.
- The railway then goes East before turning to the South-East corner of the map.
- In that corner, there are two sidings for loading and unloading the flasks.
Surely, Leiston also needs a new railway station, with at least an hourly service to Saxmundham, Wickham Market, Woodbridge and Ipswich. And possibly even Aldeburgh!
This map from OpenRailwayMap shows the route of the Aldeburgh branch.
Note.
- The North-South yellow line is the East Suffolk Line.
- Their were three stations; Leiston, Thorpeness Halt and Aldeburgh.
- Leiston station was in the North of the town.
The intact section of the branch is shown in yellow.
There would be no need for any electrification, as Stadler, who built Greater Anglia’s Class 755 trains, are the masters of battery-powered trains and could convert these trains to battery operation. Recently, one of the smaller metro trains, that Stadler are building for Liverpool, ran for nearly 90 miles on battery power alone, which I wrote about in New Merseyrail Train Runs 135km On Battery.
An hourly train service would double the frequency of the train service between Saxmundham and Ipswich.
Does the Leiston masterplan include a train service?
And if it does, does it terminate at a new Aldeburgh station?
Conclusion
Integrating development around a nuclear power station could be a way of levelling up.
It would bring electricity, heat, a rail link and jobs to an area.
Will Rolls-Royce use these benefits to sell one of their SMRs to those living around a site?
Reports: Ineos In Talks With Rolls Royce To Build Nuclear Plant At Grangemouth Refinery
The title of this post, is the same as that of this article on The Chemical Engineer.
These are the first two paragraphs.
INEOS is reportedly in talks with Rolls Royce about using its small modular nuclear reactor (SMR) technology to power the Grangemouth refinery in Scotland.
The Sunday Telegraph first reported the story, citing sources with knowledge of the discussions who claimed that early-stage talks between the companies have centred on the technology and that commercial negotiations are yet to take place.
This paragraph, also gives a useful summary of how large scale chemical plants can use low carbon energy.
Ineos is not the first chemicals major to explore using new nuclear plants to provide low-carbon power to help decarbonise its heavy operations. Options include raising low-carbon heat for use in chemicals processing and electrolysing water to produce hydrogen for use as chemical feedstocks. In August, Dow announced it will install SMRs from X-energy to provide power and process heat for its chemicals production on the US Gulf Coast.
It is interesting to note that Dow are also exploring the use of SMRs to power a large chemical plant.
This paragraph gives an assessment of the possible view of the Scottish government.
Scotland has set a target to achieve net zero emissions by 2045 – five years earlier than UK legislation. While the Scottish Government is opposed to new nuclear using current technologies it has said that it will assess how novel technologies might contribute to Scotland’s low carbon future.
So perhaps it is not the total opposition, that some would expect.
In the 1960s, when I worked at ICI, I can remember reading an article in a serious magazine about nuclear plants being used in chemical plants and for steelmaking. This application has taken a long time to come to fruition.
Small Nuclear Power Plants To Replace Gas In Quest For Net Zero
The title of this post is the same as that of this article on The Times.
I was very much involved in the writing of project management software in the last three decades of the last century and if there’s one thing we’re generally good at in the UK, it’s complex project management.
Usually problems arise because of political or ignorant senior management meddling.
Our Energy Saviours
I believe our two energy saviours will be floating offshore wind and small nuclear reactors (SMRs) and both need good project management to be built successfully on production lines.
So I don’t see any reason, why we can’t build large numbers of floating offshore wind farms to supply our electricity.
They are also complimentary, in that the fleet of SMRs back up the wind.
Floating Wind First
Floating wind is likely to be developed at scale first, as certifying anything involving nuclear will take an inordinate time.
The electricity from floating wind farms will keep us going, but it is also starting to develop a nice line in exports.
This press release from Drax is entitled Britain Sending Europe Power Lifeline – Report, where this is the sub-title.
For the first time in over a decade, Britain became a net exporter of electricity to its European neighbours, making around £1.5bn for the economy in three months.
Note.
- The report was written by Imperial College.
- Two new interconnectors; Viking Link and NeuConnect between the UK and Europe are under construction.
- Several large wind farms are under construction and will be commissioned in 2023/24 and could add over 4 GW to UK electricity production.
Exports will only get better.
A Sprint For Wind
So we must have a sprint for wind, which will then provide the cash flow to allow the SMRs to roll in.
Or will that be too much for the ultra-greens, who would object to cash-flow from GWs of wind being used to fund SMRs?
Should The World Call A Halt To Large Nuclear Power Stations?
When I left Liverpool University in the 1960s with an engineering degree, my fellow graduates and myself felt that nuclear power would be a sensible way to provide the electricity we need. Aberfan and other disasters had ruined coal’s reputation and not one of my colleagues joined the National Coal Board.
Over the intervening years, nuclear power has suffered a greater proportion of adverse events compared to other forms of electricity generation.
Large nuclear has also suffered some of the largest time and cost overruns of any energy projects.
My optimism for nuclear power has declined, although I do hope and feel, that small modular factory-built reactors, like those proposed by Rolls-Royce and others, might prove to be as reliable and economic as gas-fired, hydro-electric and tidal power stations, or solar and wind farms.
The smaller size of an SMR could be advantageous in itself.
- Smaller factory-built power stations are more likely to be built on time and budget.
- The amount pf nuclear material involved is only about twenty percent of that of a large nuclear station.
- A smaller site would be easier to protect from terrorists and Putinistas.
- Would the risk of a serious accident be reduced?
- SMRs would be less of a blot on the landscape.
- SMRs would not need such a high-capacity grid connection.
- An SMR integrated with a high temperature electrolyser could be the easiest way to generate hydrogen for a large customer like a steelworks.
Overall, I believe an SMR would be involve less risk and disruption.
Zaporizhzhya
Zaporizhzhya is probably the last straw for large nuclear, although the incident isorchestrated by an evil dictator, who is much worse, than any of James Bond’s cruel adversities.
I doubt Putin would get the same leverage, if Zaporizhzhya were a gas-fired or hydroelectric power station.
Conclusion
I feel, the world must seriously question building any more large nuclear power stations.
The Rolls-Royce SMR Web Site
Rolls-Royce now have a web site for their proposed small modular reactor (SMR) design.
This page is entitled Why Rolls-Royce SMR?, has this outline of the reactor program.
Rolls-Royce SMR offers a radically different approach to delivering nuclear power, we have drastically reduced the amount of construction activities and transformed the delivery environment, from a large complex infrastructure programme into a factory built commoditised product.
Our design has evolved in response to a definitive set of market driven outcomes, this is not technology for technology’s sake, but innovation, to create a transformational clean energy solution that will deliver clean affordable energy for all.
This would appear to be an approach driven by proven engineering principles and excellence, good low-risk design, backed up by the best project management.
These are all traditions inherent in the Rolls-Royce DNA.
But I also believe that Rolls-Royce have looked at the world market for nuclear reactors and designed a product to fit that market.
This paragraph is in a long section entitled Global & Scalable.
The compact footprint increases site flexibility and maximises potential plant locations, including replacement for existing coal or gas-fired plants.
Many things said on the Rolls-Royce SMR Web Site, appear to be very much market led.
In my view, this is the web site of a product designed to dominate the world market for nuclear energy.
Rolls-Royce Chief Warren East Spies Rebound For Air Travel
The title of this post, is the same as that of this article on The Times.
It is a must-read article.
This is the first paragraph.
Warren East, the outgoing chief executive of Rolls-Royce, has sounded a bullish note on aviation’s recovery from Covid-19, reporting increased demand from the jet-engine maker’s airline customers and expressing his belief that China will gradually open up to international travel.
Certainly, with all the chaos at the Channel this weekend, people are starting to travel again.
Support For The Military
This is a paragraph in the article.
Tom Bell, head of Rolls-Royce Defence, said the company was in talks with the US and UK militaries about supplying “deployable” reactors for military bases.
I’m sure that a reactor would have advantages to a large diesel or gas-turbine generator to power a military base.
- Military bases need a lot of power.
- It would not need refuelling every day.
- It could be connected to an electrolyser, to generate hydrogen for vehicles.
- It would be a lot quieter.
- I wonder, if it could be transported in a large transport aircraft.
But I feel, it might have other applications.
- It could provide power support after a large earthquake or natural disaster.
- It could provide power in remote or difficult locations.
- If the only power station for a remote community had a catastrophic failure, a deployable reactor could be brought in.
- It could provide power for a large construction site, which would help to decarbonise the construction.
- Power would be zero-carbon at point of generation.
The reactors might even be rail-transportable, so they could be moved to where they are needed safely and quickly.
But I don’t think they would necessarily be the same size as the Rolls-Royce SMRs, which are 470 MW.
A Scalable Reactor
This is a paragraph in the article.
Rolls also has a contract with the UK Space Agency to develop a “micro reactor” for space vehicles and satellites, Bell added. “These are really exciting opportunities for us to not only perpetuate our business undersea, at sea, on land, in the air, but also to go to space,” he said. East noted the advantage of nuclear reactors in space: “You can’t have air-breathing engines on the moon.”
Note.
- East is Warren East, who is the outgoing Chief Executive of Rolls-Royce.
- Nuclear power sources have been used in space before, usually by using an isotope, that gives out heat, as it decays.
- How small is micro?
- The US deployed a 1.75 MW nuclear power plant in Antarctica under the Army Nuclear Power Program. That reactor also provided heating and hot water. It is worth reading the Wikipedia entry, especially the section about the MM-1 reactor.
It does seem that Rolls-Royce are designing a reactor that can be scaled in size, to cover a whole spectrum of applications.
Rolls-Royce Lists Sites For New Reactor
The title of this post, is the same as that of this article on The Times.
The headline is a bit misleading, as the site is for a factory to build the reactors.
These paragraphs list the sites.
Rolls-Royce, the engineering company, has shortlisted six sites for a factory that will build its proposed small nuclear reactors.
The constituency of Rishi Sunak, the chancellor, in Richmond, North Yorkshire, is among the locations, which have been whittled down from more than 100 proposals.
The other sites are Sunderland, Deeside in Wales, Ferrybridge in West Yorkshire, Stallingborough in Lincolnshire, and Carlisle.
As Rishi Sunak resigned last night, does that rule out Richmond?
I feel that Rolls-Royce will choose this location with care, as any good company would.
I have a few thoughts.
Will Rolls-Royce Go For Zero-Carbon Manufacture?
If you intend to build large numbers of small modular nuclear reactors, it is not a good idea from a marketing or public relations point of view to release tonnes of carbon in their manufacture.
This page on the Rolls-Royce web site has a title of Destination Net Zero, where this is said.
We have already pledged to reduce emissions from our own operations to net zero by 2030, and to play a leading role in enabling the sectors in which we operate to reach net zero by 2050. Now, we are now laying out our technology pathway and setting clear short-term targets to show how we will achieve those goals.
I am sure Rolls-Royce will go for zero-carbon manufacture.
This will probably mean the site will need to have access to the following.
- Renewable electricity from wind, solar or hydro.
- Hydrogen
- Zero-carbon steel, copper and other raw materials
An external supply of hydrogen may well be the least important, as they recently purchased a German electrolyser developer and manufacturer, that I wrote about in Rolls-Royce To Develop mtu Hydrogen Electrolyser And Invest In Hoeller Electrolyser.
Will The Factory Have A Rail Connection?
A rail connection could have four main purposes.
- Bringing in raw materials like steel.
- Delivering manufactured components to site.
- If the factory is a major source of employment, rail is the greenest way to bring in staff from further away.
- If large shipments are brought in and delivered by zero-carbon rail, it generally doesn’t annoy the locals.
Note.
- The huge Britishvolt gigafactory at Blyth will have a rail connection for the transport of lithium and finished batteries.
- Transport of nuclear fuel and waste around the UK is generally done by train, with perhaps the last few miles by truck.
I think it will be very unlikely, that the new factory will not have a rail connection.
Will Power Station Modules Be Transportable By Rail?
Given that in the UK, there will need to be a railhead at or near the power station for fuel and waste, I believe that if modules were transportable by rail, this could give big advantages to the roll-out of the reactors.
If a former Magnox nuclear site like Bradwell is to be home to a fleet of small modular reactors, the electrified railhead is already in place at Southminster station.
The crane and the track probably need a bit of a refurbishment, but overall, it looks in reasonable condition.
If you sell nuclear as zero-carbon, rail is the easiest way to ensure zero-carbon delivery of modules.
The standard loading gauge in the UK is W10, which is 2.9 metres high and 2.5 metres wide.
- A standard twenty-foot container is six metres long, which must help.
- W10 gauge allows the transport of standard Hi-Cube shipping containers, which are 9 ft 6 in. high, on flat rail wagons.
- If the modules can fit into Hi-Cube shipping containers, this would make transport easier everywhere, as all ports and railways can handle these containers.
Would it be possible to fit all components into this relatively small space?
It could be difficult, but I suspect it is possible to achieve, as it would make the reactors easier to sell.
- Sites would only need to be able to receive Hi-Cube shipping containers.
- These could be trucked in from a nearby railhead.
- Containers on a railway are a very secure way of transporting goods.
- Rolls-Royce has masses of experience in shipping large turbofan engines in standard shipping containers. Some are shipped in very carefully controlled air conditions to minimise damage.
- Hi-Cube shipping containers can go through the Channel Tunnel.
I am fairly sure, that Rolls-Royce are designing the power station, so that it fits into a number of Hi-Cube shipping containers. It would give other advantages.
- Smaller components would probably speed up assembly.
- Smaller components may also mean that smaller cranes could be used for assembly.
There may need to be some gauge enhancement to be able to access some sites in the UK.
- This article on Rail Engineer, is entitled Showing Your Gauge, and it details how gauge is being enhanced to W10 and W12 in the UK.
- Network Rail have also published a map, which shows where W10 gauge is possible. Click here to view.
I am fairly certain, that most railways in the world can handle Hi-Cube shipping containers.
Availability Of Staff
Rolls-Royce will obviously opt for a place, where there is good availability of staff.
Conclusion
I feel that any of the sites mentioned could be the ideal place for the factory.
If I had to have a bet, I’d put it the factory at Stallingborough in Lincolnshire.
- It is close to the Zero Carbon Humber energy and hydrogen hub.
- There is plenty of space.
- There is a rail connection.
- It is close to the Port of Immingham.
- It is close to British Steel at Scunthorpe.
It is also not that far from Derby by road or rail.
Rolls-Royce To Develop mtu Hydrogen Electrolyser And Invest In Hoeller Electrolyser
The title of this post, is the same as that of this press release from Rolls-Royce.
These are the three main points in the press release.
- Holdings in start-up companies in northern Germany secure Rolls-Royce Power Systems access to key green hydrogen production technology.
- Electrolysis systems for several megawatts of power.
- First demonstrator in 2023 using a Hoeller stack.
This is the introductory paragraph to the deal.
Rolls-Royce is entering the hydrogen production market and acquiring a 54% majority stake in electrolysis stack specialist Hoeller Electrolyzer, whose innovative technology will form the basis of a new range of mtu electrolyzer products from its Power Systems division. Hoeller Electrolyzer, based in Wismar, Germany, is an early-stage technology company that is developing highly efficient polymer electrolyte membrane (PEM) stacks, under the brand name Prometheus, for the cost-effective production of hydrogen.
This page on the Hoeller Electrolysis web site gives details of Prometheus.
- Hoeller are planning small, medium and large electrolyser modules, the largest of which is rated at 1.4 MW.
- Load changes of between 0 and 100 % within seconds.
- Cold start capability.
- It will produce 635 Kg/day.
- They are talking of a cost of 4€/Kg.
It all sounds good to me.
This paragraph is from the press release.
Founded in 2016, Hoeller Electrolyzer has positioned itself, with Prometheus, as one of the few highly specialized expert players in the field of high-efficiency PEM electrolysis stacks. Its founder, Stefan Höller, has more than a quarter of a century’s experience of developing electrolysis technology and has already registered 14 patents connected with Prometheus. Particularly high efficiency is promised by special surface technologies for the bipolar plates which significantly reduce the use of expensive precious metals platinum and iridium as catalysts, as well as increased output pressure.
I know a small amount about electrolysis and feel that Rolls-Royce may have got themselves a high-class deal.
Rolls-Royce’s large German presence in companies like mtu, will also help to smooth any doubts about the deal.
This paragraph indicates a shared belief.
Rolls-Royce and Hoeller Electrolyzer are united by a shared belief in the opportunity of zero-carbon energy – both for power supply and the propulsion of heavy vehicles. With decades of experience and systems expertise, Rolls-Royce is going to develop a complete electrolyzer system and has a global sales and service network, which opens up the potential for significant worldwide sales.
But perhaps, this is the most significant paragraph of the press release.
Armin Fürderer, who heads up the Net Zero Solutions business unit of Power Systems, said: “We’re going to launch electrolyzers with several megawatts of power right from the start. A total output of over 100 megawatts is conceivable by combining several electrolyzers.”
A quick search of the Internet, indicates that 100 MW is the size of the world’s largest electrolysers.
Applications
I can see applications for these large electrolysers.
Rolls-Royce Power Systems
This is a sentence from the press release.
Hoeller Electrolyzer, whose innovative technology will form the basis of a new range of mtu electrolyzer products from its Power Systems division.
The Rolls-Royce Power Systems web site, has this mission statement.
The Power Systems Business Unit of Rolls-Royce is focused on creating sustainable, climate neutral solutions for drive, propulsion and power generation.
In Rolls-Royce Makes Duisburg Container Terminal Climate Neutral With MTU Hydrogen Technology, I describe one of Rolls-Royce Power Systems projects.
The title of this post, is the same as this press release from Rolls-Royce.
This is the first sentence.
Rolls-Royce will ensure a climate-neutral energy supply at the container terminal currently under construction at the Port of Duisburg, Germany.
There is also this Rolls-Royce graphic, which shows the energy sources.
It would appear batteries, combined heap and power (CHP), grid electricity, hydrogen electrolyser, hydrogen storage and renewable electricity are being brought together to create a climate-neutral energy system.
Note.
- The system uses a large hydrogen electrolyser.
- I suspect the hydrogen will be generated by off-peak electricity and local renewables.
- Hydrogen will probably power the container handling machines, ships, trucks, vehicles and other equipment in the port.
Hydrogen appears to be used as a means of storing energy and also for providing motive power.
I would suspect, the ultimate aim is that the port will not emit any carbon dioxide.
Other ports like Felixstowe and Holyhead seem to be going the hydrogen route.
Refuelling Hydrogen Buses and Charging Electric Buses
If you look at the Duisburg system, I can imagine a similar smaller system being used to refuel hydrogen buses and charge electric ones.
- The hydrogen electrolyser would be sized to create enough hydrogen for a day or so’s work.
- Hydrogen would be generated by off-peak electricity and local renewables.
- If an operator bought more buses, I’m certain that the architecture of the electrolyser would allow expansion.
- Hydrogen fuel cells would boost the electricity supply, when lots of buses needed to be charged.
- Any spare hydrogen could be sold to those who have hydrogen-powered vehicles.
- Any spare electricity could be sold back to the grid.
It should be noted that manufacturers like Wrightbus have developed a range of hydrogen and electric buses that use the same components. So will we see more mixed fleets of buses, where the best bus is assigned to each route?
I have used buses as an example, but the concept would apply to fleets of cars, trucks and vans.
Green Hydrogen
Large efficient electrolysers will surely be the key to producing large quantities of green hydrogen in the future.
It appears that about 55 MWh is needed to produce a tonne of green hydrogen using existing electrolysers.
The Hoeller electrolyser appears to be about 53 MWh, so it is more efficient.
Green Hydrogen From An Onshore Wind Farm
If you look at the average size of an onshore wind farm in the UK, a quick estimate gives a figure of 62 MW. I shouldn’t expect the figure for much of the world is very different, where you ignore the gigafarms, as these will distort the numbers.
An appropriately-sized electrolyser could be added to onshore wind farms to provide a local source of hydrogen for transport, an industrial process or a domestic gas supply for a new housing estate.
A single 5 MW wind turbine with a capacity factor of around 30 % would produce around 680 Kg of green hydrogen per day.
Green Hydrogen From An Offshore Wind Farm
There are basic methods to do this.
Put the electrolyser onshore or put the electrolyser offshore and pipe the hydrogen to the shore.
I think we will see some innovative configurations.
In ScotWind N3 Offshore Wind Farm, I described how Magnora ASA are developing the ScotWind N3 wind farm.
The floating turbines surround a concrete floater, which in the future could contain an electrolyser and tankage for hydrogen.
The ScotWind N3 wind farm is designed to be a wind farm rated at 500 MW.
I can see an electrolyser on the floater, of an optimal size to make sure all electricity is used.
Pink Hydrogen
Pink hydrogen, is zero-carbon hydrogen produced using nuclear-generated electricity.
There are industrial processes, like the making of zero-carbon chemicals, concrete and steel, that will require large quantities of zero-carbon green or pink hydrogen.
Rolls-Royce are developing the Rolls-Royce SMR, which will be a 470 MW small modular nuclear reactor.
One of these placed near to a steel works and coupled to one or more 100 MW electrolysers could provide enough zero-carbon electricity and hydrogen to produce large quantities of zero-carbon green steel.
Manufacturing
Rolls-Royce and their subsidiaries like mtu, seem to be extensive users of advanced manufacturing techniques and I would expect that they can improve Hoeller’s manufacturing.
Research And Development
The press release says this about the founder of Hoeller.
Its founder, Stefan Höller, has more than a quarter of a century’s experience of developing electrolysis technology and has already registered 14 patents connected with Prometheus.
If Rolls-Royce can develop and support Stefan Höller and his team, development could easily go to a higher level.
Conclusion
I think that Rolls-Royce have taken over a company, that will in the end, will design excellent efficient electrolysers.
Could Rolls-Royce SMRs Be The Solution To Europe’s Gas Shortage?
Of all the offshore wind farms, that I’ve looked at recently, I find Magnora’s ScotWind N3 wind farm the most interesting.
I wrote about it in ScotWind N3 Offshore Wind Farm.
I said this.
In any design competition, there is usually at least one design, that is not look like any of the others.
In the successful bids for the ScotWind leases, the bid from Magnora ASA stands out.
- The company has an unusual home page on its offshore wind web site.
- This page on their web site outlines their project.
- It will be technology agnostic, with 15MW turbines and a total capacity of 500MW
- It will use floating offshore wind with a concrete floater
- It is estimated, that it will have a capacity factor of 56 %.
- The water depth will be an astonishing 106-125m
- The construction and operation will use local facilities at Stornoway and Kishorn Ports.
- The floater will have local and Scottish content.
- The project will use UK operated vessels.
- Hydrogen is mentioned.
- Consent is planned for 2026, with construction starting in 2028 and completion in 2030.
This project could serve as a model for wind farms all round the world with a 500 MW power station, hydrogen production and local involvement and construction.
I very much like the idea of a concrete floater, which contains a huge electrolyser and gas storage, that is surrounded by an armada of giant floating wind turbines.
These are my thoughts.
Floating Concrete Structures
To many, they may have appear to have all the buoyancy of a lead balloon, but semi-submersible platforms made from concrete have been used in the oil and gas industry for several decades.
Kishorn Yard in Scotland was used to build the 600,000-tonne concrete Ninian Central Platform,in 1978. The Ninian Central Platform still holds the record as the largest movable object ever created by man.
The Ninian Central Platform sits on the sea floor, but there is no reason why a semi-submersible structure can’t be used.
Electrolysers
There is no reason, why a large electrolyser, such as those made by Cummins, ITM Power or others can’t be used, but others are on the way.
- Bloom Energy are working on high temperature electrolysis, which promises to be more efficient.
- Torvex Energy are developing electrolysis technology that used sea water, rather than more expensive purified water.
High Temperature Electrolysis
High temperature electrolysis needs a heat source to work efficiently and in Westinghouse And Bloom Energy To Team Up For Pink Hydrogen, I described how Bloom Energy propose to use steam from a large nuclear power station.
Offshore Nuclear Power
I’ve never heard of offshore nuclear power, but it is not a new idea.
In 1970, a company called Offshore Power Systems was created and it is introduced in its Wikipedia entry like this.
Offshore Power Systems (OPS) was a 1970 joint venture between Westinghouse Electric Company, which constructed nuclear generating plants, and Newport News Shipbuilding and Drydock, which had recently merged with Tenneco, to create floating nuclear power plants at Jacksonville, Florida.
Westinghouse’s reactor was a 1.150 MW unit, which was typical of the time, and is very similar in size to Sizewell B.
The project was cancelled before the reactors were towed into position.
Nuclear Knowledge Has Improved
Consider.
- In the fifty years since Offshore Power Systems dabbed their toes in the water of offshore nuclear power, our knowledge of nuclear systems and engineering has improved greatly.
- The offshore oil and gas industry has also shown what works impeccably.
- The floating offshore wind industry looks like it might push the envelop further.
- There has been only one nuclear accident at Fukushima, where the sea was part of the problem and that disaster taught us a lot.
- There have been a large number of nuclear submarines built and most reached the planned end of their lives.
- Would a small modular nuclear reactor, be safer than a large nuclear power plant of several GW?
I would suggest we now have the knowledge to safely build and operate a nuclear reactor on a proven semi-submersible platform, built from non-rusting concrete.
An Offshore Wind Farm/Small Modular Reactor Combination Producing Hydrogen
Consider.
- A typical floating offshore wind farm is between one and two gigawatts.
- A Rolls-Royce small modular reactor is sized to produce nearly 0.5 GW.
- The high temperature electrolyser will need some heat to achieve an optimum working temperature.
- Spare electricity can be used to produce hydrogen.
- Hydrogen can be stored platform.
- Hydrogen can be sent ashore using existing gas pipes.
- Hydrogen could even be blended with natural gas produced offshore to create a lower-carbon fuel.
- It would also be possible to decarbonise nearby offshore infrastructure.
A balance between wind and nuclear power can be obtained, which would provide a steady output of energy.
Conclusion
There are a large numbers of possibilities, to locate a Rolls-Royce small modular reactor close to a wind farm to use high temperature electrolysis to create green hydrogen, which can be used in the UK or exported through the gas network.
Rolls-Royce Submits SMR Design For UK Assessment
The title of this post, is the same as that of this article on World Nuclear News.
This is the first paragraph.
Rolls-Royce SMR Limited has submitted its 470 MWe small modular reactor (SMR) design for entry to the UK’s Generic Design Assessment (GDA) regulatory process. The review of the SMR design – based on a small pressurised water reactor – will formally begin once the government has assessed the company’s capability and capacity to successfully enter the GDA process.
It’s good to see this project progressing.
The Anonymous Widower 