Fire Safety Of Battery-Electric Vehicles
I notice that there has been talk of fires in battery-electric vehicles on this blog.
So I thought I’d put up a post with an appropriate topic.
There are some things that already could worry me.
- Vivarail had a fire early on.
- The Merseyrail Class 777 trains go in the tunnels under Liverpool.
- The new Piccadilly Line trains will have batteries.
- Did electric vehicle batteries contribute to the ferocity of the fire in the Luton Airport car park?
- Fire brigades are getting very worried about e-scooter and e-bike fires.
- This page on the Internet gives details of recent BESS fires.
- Do we investigate fires and publish the results properly?
I have some questions.
- Would it be sensible to have nationwide database of all batteries?
- Should we use more non-lithium methods in large stationary batteries?
- Should we use more capacitors?
- Should we make it a criminal offence to build or use a non-compliant e-bike or e-scooter?
- Should installing a battery in your house, need a safety certificate?
One half of me says yes and the other says no, to some of these questions.
The UK’s Pumped Storage Hydroelectricity
This post is a simple list of the UK’s pumped storage hydroelectricity.
- Balliemeanoch – 1500 MW/45 GWh – In Development
- Coire Glas – 1500 MW/30 GWh – Under Construction
- Corrievarkie – 600 MW/14.5 GWh – In Development
- Cruachan – 1000 MW/7.1 GWh – In Operation
- Fearn – 1800 MW/37 GWh – In Development
- Dinorwig – 1800 MW/9.1 GWh – In Operation
- Earba – 900 MW/33 GWh – In Development
- Foyers – 305 MW/10 GWh – In Operation
- Ffestiniog – 360 MW/1.44 GWh – In Operation
- Loch Kemp – 600 MW/9 GWh – In Development
- Loch Sloy – 152.5 MW/25 GWh – In Operation
- Red John – 450 MW/2.8 GWh – Under Construction
Note.
- Cruachan is only 440 MW and is being upgraded.
- The storage capacity at Foyers may be wrong, as I can’t find my original source.
When fully developed the total will be 10969.3 MW/223.94 GWh.
Wylfa: UK Government In Talks To Buy Nuclear Site – Report
The title of this post, is the same as that as this article on the BBC.
This is the sub-heading.
The UK government is reportedly in talks to take control of a site in north Wales where a planned nuclear project was scrapped in 2019.
These paragraphs outline the story.
State-owned Great British Nuclear is “in early discussions” with Hitachi, which owns the land at Wylfa, on Anglesey, the Financial Times reported.
A government spokesman said Wylfa was one of many “potential sites” that could host nuclear projects.
Hitachi abandoned its plans there in January 2019.
An unnamed minister told the FT that “tentative negotiations” with Hitachi had already begun, but said a deal might not be reached until after a general election expected later this year.
Tom Greatrex, chief executive of the Nuclear Industry Association and Virginia Crosbie, MP for Ynys Môn both welcomed the talks.
These are my thoughts.
Where Is Wylfa?
This Google Map shows Anglesey.
Wylfa power station is near Wylfa Head at the top of the map, where they are indicated by the cluster of red arrows.
This Google Map shows the power station to a larger scale.
Note.
- The red arrow named Magnox marks the decommissioned Magnox power station.
- The topmost red arrow marks Wylfa Head.
- The rightmost red arrow marks Porth y Wylfa, which looks like a small harbour.
- On some maps the square building to the East of the power station is marked as Wylfa sub-station.
- There certainly appears to be an overhead transmission line leading South from the power station complex.
Virginia Crosbie, MP for Ynys Môn, also said this according to the BBC article.
The nuclear industry is unanimous that Wylfa is the best site in Europe for large-scale nuclear,” she said, adding that it would be “the largest inward investment” in Welsh history and “transformational” for the people of north-west Wales.
But I do wonder, if when you have cleared the Wylfa site leaving the sub-station, that it could be a site where renewables could come ashore and be fed into the grid.
Why Is Wylfa The Best Site In Europe For Large-Scale Nuclear?
Given the protests about putting new power transmission lines across Norfolk and Suffolk, I feel that Wylfa’s largest asset could be its high capacity connection to the UK’s grid.
According to the Wikipedia entry for Wylfa power station, this is said about Wylfa B.
Horizon Nuclear Power, originally an E.ON and RWE joint venture, bought by Hitachi in 2012, announced in 2009 intentions to install about 3,000 MWe of new nuclear plant at Wylfa. Horizon planned to build two advanced boiling water reactors (ABWRs) at a site to the south of the existing Wylfa station.
It would seem that the high capacity connection to the UK’s grid, is capable of handling a 3 GW power station at Wylfa, which could be very useful in the grand scheme of things.
This is also said in the Wikipedia entry for Wylfa power station.
On 4 April 2017, Horizon submitted a Site Licence Application to the Office for Nuclear Regulation. The scheme was extended to include a tunnel under the Menai Strait to carry the power cables to protect the conservation worth of the Strait and the Area of Outstanding Natural Beauty.
Horizon certainly seemed to try hard to get Wylfa B under construction.
As I said earlier, the Wylfa site could be an ideal site to connect offshore renewables to the grid.
Teesside Private SMR Nuclear Power Station To Be Built
The title of this post, is the same as that of this article on the BBC.
This is the sub-heading.
An agreement has been reached to build a privately financed nuclear power station in Teesside.
These are the first three paragraphs.
Community Nuclear Power (CNP) has announced plans to install four small modular reactors (SMRs) in North Tees.
CNP said it aims to be up and running in ten years’ time and will supply “roughly a gigawatt of energy”.
With other similar power stations planned, hundreds of jobs are expected to be created in the north-east of England.
A CNP spokesperson said the four North Tees reactors will generate clean, always-on energy which will be used to help develop a green energy and chemical hub, also within the North Tees Group Estate, on the north bank of the River Tees near Stockton.
These are my thoughts.
The Westinghouse AP300™ SMR
This SMR has its own web page.
This is the sub-heading.
Only SMR based on Licensed, Operating & Advanced Reactor Technology
These paragraphs introduce the reactor.
The Westinghouse AP300™ Small Modular Reactor is the most advanced, proven and readily deployable SMR solution. Westinghouse proudly brings 70+ years of experience developing and implementing new nuclear technologies that enable reliable, clean, safe and economical sources of energy for generations to come.
Our AP1000® reactor is already proving itself every day around the globe. Currently, four units utilizing AP1000 technology are operating in China, setting performance records. Six more are under construction in China and one AP1000 reactor is operating at Plant Vogtle in Georgia while a second nears completion.
Our AP300 SMR leverages that operating experience, as well as tens of millions of hours on AP1000 reactor development.
Gain the benefits of the record-setting Westinghouse AP1000 PWR technology in a smaller power output to augment the backbone of your community energy system.
The AP300 SMR complements the AP1000 reactor for a cleaner energy mix, energy security, and grid flexibility and stabilization.
Westinghouse seem to have taken a very professional and scientifically correct approach and downsized something that works well.
Where Will The Reactors Be Built?
This is a paragraph from the BBC article.
Small reactors, built in a factory by the American power giant Westinghouse, will be transported to Seal Sands near Billingham, coming on stream in the early 2030s and going some way to providing part of the big rise in nuclear capacity the UK government wants to see by 2050.
This Google Map shows the mouth of the River Tees.
Note.
- The red arrow at the bottom of the map indicates the location of North Tees Group Estate.
- Follow the river to the North and a capitalised label indicating the position of Seal Sands can be seen.
This second Google Map shows the Seal Sands area in a larger scale.
There seems to be several spaces, where the reactors could be located.
Would It Be Safe To Locate A Nuclear Reactor Or Reactors In a Cluster Of Oil Refineries And/Or Chemical Plants?
Consider.
- In the 1970s, when I worked at ICI, there were companies like Westinghouse advocating nuclear steelmaking.
- We did discuss the concept a couple of times over coffee but no one, I worked with, ever looked at it officially or seriously, as far as I know.
- In addition to requiring large amounts of electricity, oil refineries and chemical plants often use a lot of steam.
- Nuclear reactors generate steam to produce electricity, so some could be diverted to oil refineries or chemical plants
- To decarbonise some processes might switch to hydrogen.
- In Westinghouse And Bloom Energy To Team Up For Pink Hydrogen, I talk about how to use a nuclear reactor to efficiently produce pink hydrogen.
It looks like for efficiency, building the various plant close together could be a good thing.
But is it safe?
I suspect the level of safety will be that of the least safe plant.
So provided all plants are designed to the highest standards, it should be OK, as nuclear plants, oil refineries and chemical plant don’t regularly explode.
The Donald C Cook Nuclear Plant
The Donald C Cook Nuclear Plant in Michigan is a 2.2 GW nuclear plant, that was built by Westinghouse and commissioned in the mid-1970s.
They were clients for Artemis, the project management system that I wrote.
Soon after the Three Mile Island accident on March 28th, 1979, I visited the Donald C Cook Nuclear Plant to see how they were coping with the aftermath of the accident.
I remember being told by the operators of the plant, who were American Electric Power, that as it was their only nuclear plant, they were going to do everything by the book and Artemis was helping them to do that.
Reading about the plant, which is now licenced to operate until 2034 for one reactor and 2037 for the other, it seems to have performed impeccably so far for nearly fifty years.
It is a credit to both Westinghouse, who built it and American Electric Power who own it.
Now that is what I call high-class engineering and I’d be happy to have a cluster of SMRs to the same standard in my back yard.
Sizewell B
I used to live a few miles from Sizewell B, which is another Westinghouse reactor.
- This is the Wikipedia entry for the power station.
- Sizewell B was based on a proven Westinghouse design.
- It seems to have performed well since it was commissioned in 1995.
It looks like it will be operating until 2055, which will make its working life similar to those of the reactors at the Donald C Cook Nuclear Plant.
Westinghouse And Hinckley Point C Compared
Consider.
- Sizewell B was built in approximately seven years.
- This compares well with the two units at the Donald C Cook Nuclear Plant, which took six and nine years respectively
- It looks like Hinckley Point C will take between twelve and fourteen years to build.
- Sizewell B and the two units at Donald C Cook Nuclear Plant seem to be looking at a sixty year operating lifetime.
- Sizewell has a rail connection and Hinckley Point does not.
- Sizewell B seems to have been signed off, when John Major was Prime Minister.
- Hinckley Pont C seems to have resulted from a government white paper when Gordon Brown was Prime Minister.
Westinghouse seem to design nuclear power stations, that can operate for a long period and can be built within a decade.
Westinghouse And Rolls-Royce
Consider.
- Rolls-Royce also have an SMR design.
- Rolls-Royce and Westinghouse are both world-class companies.
- Rolls-Royce have the advantage they are British.
- I also suspect, that both Westinghouse and Rolls-Royce will use the same subcontractors and sub-assembly manufacturers.
- The Rolls-Royce SMR has a power output of 470 MW.
- The Westinghouse SMR has a power output of 300 MW.
I suspect the choice between the two, will be like choosing between top-of-the-range British and American products.
Conclusion
I wonder why we ended up with an unproven new French design at Hinckley Point, when sitting in Suffolk was a traditional Westinghouse design, that was performing to its design specification?
But for the SMR, we need to buy the reactors, which are financially best for Britain. If Westinghouse choose to manufacture large sections in the UK, they could be the better bet, as I suspect, if SMRs are successful, we’ll be seeing exports from the UK.
Tregoss Passing Loop On The Atlantic Coast Line
To increase the frequency of trains on the Atlantic Coast Line between Par and Newquay stations, from two-hourly to hourly, Network Rail are proposing to add a passing loop at Tregoss Moor.
This OpenRailwayMap shows the railway as it runs across the moor.
Note.
- Roche station in the North-East corner of the map.
- The red and blue crosses indicating level crossings on the route.
- The map seems to indicate a number of power cables.
I took these pictures from the train, as I came down to Par station.
Note.
- I was sitting on the right-hand-side of the train, looking West.
- In addition to the cables, there are about half a dozen wind turbines.
- Roche station is typical of the intermediate stations on the line – Small, functional and tidy, with a few car parking spaces.
On past form, I suspect that Network Rail could squeeze in a passing loop, that wouldn’t stir up too many antis.
I have one thought,
The St. Austell Link Road
This Google Map shows where the A30 to St. Austell Link Road is being built.
Note.
- The station at the top of the map by the area called Victoria and to the West of Higher Town is Roche station.
- The station at the right edge of the map about halfway down is Bugle station.
- The South of the map is covered by white china clay workings.
- Running diagonally across the map is the A30 to St. Austell Link Road.
This page on the Cornwall web site, says this about the road.
The St Austell to A30 link road will connect the old A30 near Victoria to the north and the A391 at Stenalees roundabout to the south. It will be a new 3.9 mile single carriageway road. It is a vital link to bring opportunities to the area.
This Google Map shows the area, where the Link Road will connect to the A30.
Note.
- The A30 running across the top of the map.
- The Victoria area and Roche station in the North-East corner of the map.
- In the South-West corner of the map their is the site office of the Link Road.
- The current end of the construction scar of the Link Road can be seen at the edge of the map.
- I would assume that the new road joins the roundabout to the North-East of the Construction Office.
- Traffic could be routes North-East from here along the B3274 to join the A30 at Cornwall Services.
- The railway sneaks between the A30 and the construction site.
I hope there’s been a bit of joined up thinking here and the road and the railway have been given the best joint design possible.
ICE Report Shows Majority Open To Net Zero Changes
The title of this post, is the same as that of this article on The Engineer.
This is the sub-heading.
A new report has found that a majority of the UK public is amenable to the behavioural changes needed to hit the country’s net zero targets.
These two paragraphs summarise the findings of the report.
Published by the Institution of Civil Engineers (ICE) and the All-Party Parliamentary Group on Infrastructure (APPGI), the report was based on a survey of 1,000 respondents. It found that 57 per cent were open to change, with 23 per cent described as net zero enthusiasts who were likely to have already altered their behaviours, and 34 per cent wanting change, but feeling they needed further empowerment to achieve it.
However, there is far from universal agreement when it comes to behavioural change around climate action. The report found that 30 per cent of people were ‘reluctant followers’, largely acknowledging that the UK must act on emissions, but not feeling personal responsibility for that action. This segment will likely only change their behaviours if forced to do so or seeing a majority of others doing it first. Finally, 13 per cent of those surveyed were classed as ‘net zero resistors’, people who don’t believe action is necessary and have no intention of doing so.
Summing the figures up gives us.
- Net-Zero Enthusiasts – 23 %
- Wanting Change – 34 %
- Reluctant Followers – 30 %
- Net-Zero Resistors – 13 %
All politicians should be forced to read the full report.
What Would I Need To Do To Achieve a Personal Net-Zero?
My circumstances probably cover a lot of people.
- I am a widow living alone.
- My house is well-insulated with solar-panels on the roof, but heated by gas.
- I don’t have or need a car.
- I do nearly all my shopping by public transport and carry it home.
- When I go away in the UK I use trains.
- If I go to Europe, I either go or come back by train.
- I am coeliac, which means I need to eat some meat to stay healthy.
My largest carbon-emitted is probably my house, but it would be unsuitable for most current solutions.
I would put myself in the Wanting Change group, but I could move to a Net-Zero Enthusiast, if the right technology came along.
- I have seen one bolt-in electric replacement for by boiler and when the right one arrives, I’ll probably fit one.
- An affordable battery to work to with my solar panels and also allow me to use Off Peak electricity would be nice.
- As I’m coeliac, I tend to buy in the same food each week from Marks and Spencer to eat in. I might be able to cut my carbon footprint by getting Ocado to deliver. Especially, as some deliveries seem to be bike.
- If TfL decarbonised the bus, that I use most days to and from Moorgate would that lower my carbon footprint?
I suspect the largest amount of carbon outside of my house’s heating, that I’ll emit, will be tomorrow, when I take a train to Newquay.
How Do We Convert The 13 % Net-Zero Resistors?
The recent protests by French and Belgian farmers indicate, that these farmers are probably in this group. And there are other forthright groups!
The only way, that they’ll be converted, is if technology allows them to earn the same amount of money and have the same outgoings, as they do now!
Energy / Sullom Voe Terminal To Be Connected To The Grid By The End Of Next Year
The title of this post, is the same as that of this article on Shetland News.
This is the sub-heading.
POWER supply to the Sullom Voe Terminal is set to be provided by two 43-kilometre underground power lines from the Gremista substation by the end of next year.
These four paragraphs outline some of EnQuest’s plans.
The on-site gas-fired power station, operated by Equans, is due to be switched off in the fourth quarter of 2025 as it no longer meets stringent carbon emission standards.
EnQuest, the operator of the terminal, gave an update on its plans for the 1,000-acre site during a Shetland suppliers forum held at Mareel on Wednesday morning.
The company was keen to present itself as one that is seeking collaborative working with the local businesses and the community as Sullom Voe transitions from an oil terminal to a green energy hub.
The company is in the middle of a “right-sizing” project that involves some significant decommissioning of equipment no longer needed to make space for long-term aspiration such as carbon capture and storage, green hydrogen production and offshore electrification.
Note.
- Two underground cables will be coming from Gremista to Sullom Voe.
- Up to seven wind turbines could fit on the site to produce power needed for green hydrogen production.
- Shetland is set to be connected to the UK national grid later this year thanks to a new 600MW HVDC subsea transmission link which will run to Caithness.
- The Sullom Voe power station, once switched off, could be “repurposed” to continue producing energy using clean fuels.
- EnQuest are certainly doing a comprehensive job on the transition.
- It looks to be a well-thought out plan to convert existing oil and gas infrastructure to a modern green asset.
This Google map shows Gremista to Sullom Voe.
Note.
- Sullum Voe is at the top of the map.
- Gremista is marked by the red arrow.
- It looks like the cable could take mainly a straight North-South route.
This second Google map shows Sullum Voe
Note.
- The Sullum Voe terminal is at the top of the map.
- Sullum Voe is a 1,000-acre site.
- In the South-West corner is the closed Scatsta airport.
This third Google map shows Lerwick.
Gremista is marked by the red arrow.
I do have some thoughts.
Scatsta Airport
Consider.
- It takes takes over three hours on a bus between Lerwick and Sullum Voe
- Scatsta Airport only closed in 2020.
Is there an opportunity for an air taxi between Lerwick and Scatsta?
Energy Security Boost After Centrica And Repsol Agree LNG Supply Deal
The title of this post, is the same as that of this press release from Centrica.
This is the sub-heading.
Centrica Energy and Repsol today announced the signing of a deal that will improve the UK’s energy security in the coming years.
These two paragraphs give more details of the deal.
The deal will see Centrica purchase 1 million tonnes of Liquified Natural Gas (LNG) shipments between 2025 and 2027. All of these cargoes are expected to be delivered to the Grain LNG import terminal in Kent.
The deal marks an additional move by Centrica to build further resilience in the UK’s energy security. It follows a 15 year, $8bn deal with Delfin Midstream in July 2023, a three-year supply agreement with Equinor that will heat 4.5m UK homes through to 2024 and the reopening and expansion of the Rough gas storage facility in October 2022 and June 2023 respectively. Rough now provides half of the UK’s total gas storage capacity with the potential to store over 50 billion cubic feet (bcf) of gas, enough to heat almost 10% of UK homes throughout winter.
Centrica do seem to be keeping us supplied with gas.
Two days ago, National Grid published this press release, which is entitled Grain LNG Signs New Deal With Venture Global Further Strengthening The Security Of Supply Of LNG To The United Kingdom.
This is the sub-heading.
Today (5 February), Grain LNG and Venture Global have announced the execution of a binding long-term terminal use agreement (TUA) enabling the regasification and sale of LNG from all of Venture Global’s LNG terminals in Louisiana, including CP2 LNG, subject to obtaining necessary federal permits.
These two paragraphs give more details of the deal.
Under the agreement, Venture Global will have the ability to access 3 million tonnes per annum (3MTPA) of LNG storage and regasification capacity at the Isle of Grain LNG receiving terminal for sixteen years beginning in 2029, equivalent of up to 5% of average UK gas demand.
This is the second agreement from Grain LNG’s competitive auction process which was launched in September 2023. The successful outcome of the auction further secures the future of Europe’s largest LNG import terminal into the mid 2040s.
Two big deals in the same week is not to be sneezed at and must be good for the UK’s energy security.
Grain LNG
The Grain LNG web site, greets you with this message.
Welcome To Europe’s Largest Liquified Natural Gas Terminal, Grain LNG
Grain LNG is the gateway connecting worldwide LNG to the European energy market, making a genuine difference to people’s lives. Find out all about our cutting-edge operations – showcasing our leadership in powering the future – and why Grain LNG is at the forefront of energy as we move towards net zero.
There is also a video.
This Google Map shows the location of Grain LNG on the Isle of Grain.
Note.
- The River Medway flows into the River Thames between the Isle of Grain on the left and the Isle of Sheppey on the right.
- From South to North, the red arrows indicate, the National Grid – Grain Terminal, National Grid L N G and Grain LNG.
There would appear to be space for expansion.
The Economic Case For Hydrogen In Domestic Heating
The title of this post, is the same as that of this article on The Chemical Engineer.
The Wikipedia entry for The Chemical Engineer has this introductory paragraph.
The Chemical Engineer is a monthly chemical engineering technical and news magazine published by the Institution of Chemical Engineers (IChemE). It has technical articles of interest to practitioners and educators, and also addresses current events in world of chemical engineering including research, international business news and government policy as it affects the chemical engineering community. The magazine is sent to all members of the IChemE and is included in the cost of membership. Some parts of the magazine are available free online, including recent news and a series of biographies “Chemical Engineers who Changed the World”, although the core and the archive magazine is available only with a subscription. The online magazine also has freely available podcasts.
It is a source on the Internet, where anything non-scientifically correct will be unlikely to appear.
The article has two introductory sub-headings.
Despite its thermodynamic disadvantages, global energy technology specialist Thomas Brewer believes hydrogen has an economic and efficient role in domestic heating. It forced him to deviate from his usual mantra of ‘efficiency above all else’ to get there, though
The work of decarbonisation by chemical engineers is about how we can cost effectively enable our organisations’ transition away from fossil fuels. This requires foresight. A decision chemical engineers make on a project with a 20-year lifespan will still be operational in 2045, when in most global locations, internal combustion engine (ICE) vehicles will probably be in the minority and grid electricity will be mostly renewable.
This is the first actual paragraph.
It is unsurprising, therefore, that chemical engineers are researching and debating the prospects of the future of energy availability from renewables, and the likely role and cost of hydrogen. There is much public noise surrounding the conversation about heat pumps vs hydrogen for domestic heating. I have noticed how few articles are written from an unbiased perspective, how very few reports talk about the whole solution, and authors avoid quantifying the financial impact of their proposed solution. I couldn’t find an unbiased study with any financial logic, so, I built a model to assess the options, for my own interests. I found the results so intriguing that I wanted to share them.
In other words, let the data do the talking and accept what it tells you.
These are some extracts from the article.
On Curtailment
The article says this on curtailment of wind energy, because you are generating too much.
Efficient electrical energy storage is expensive, which has traditionally led renewable system designers to include curtailment as a part of their design. Curtailment involves oversizing the wind supply to be higher than the grid connection to reduce the need for as much energy storage, and deliberately wasting the occasional electrical excess. The system design becomes an economical balance between oversizing the renewable generation and paying for additional electrical storage. Within the UK grid in 2023, curtailment is a small factor. As electrification and wind power become more mainstream, the financial decision between investing in excess wind vs electrical storage will lead curtailment to become a more significant factor.
Curtailment is to me a practice, that should be consigned to the dustbin of history.
To eliminate it, as much storage as is needed storage must be provided.
Eliminate Naked Flames In The Kitchen
The article says this about eliminating naked gas flames (natural gas or hydrogen) in the kitchen.
Figure 1 shows that the recommended standard of hydrogen gas installation if removing kitchen gas cooking would result in less injuries than the existing natural gas installation if cooking were converted to induction heating. Kitchen leaks are more likely than boiler leaks due to the number of valves and connections, regardless of the gas type. NOx emissions in the home because of naked flames in the kitchen are also of concern to the health of the occupants and hydrogen naked flames have a higher NOx emission than natural gas; another reason to eliminate naked flame cooking.
When I was financing the development of what became the Respimat inhaler, I did my due scientific diligence and found research from a Russell Group University, that naked flames (including smoking) were a cause of asthma, especially in children.
My recommendation is that, at an appropriate time in the near future, you replace your gas cooker with an electric one. My ginger-haired Glaswegian friend, who is a chef, who’s had Michelin stars would recommend an electric induction cooker.
Pumped Storage
The article says this about building more pumped storage.
The pumped storage assumption is based on the SSE proposal for Coire Glas, a 30 GWh £1.5bn storage system in Scotland which will more than double the UK’s current pumped storage capacity. The capital cost of this pumped storage system is about £50/kWh which will be delivered at about 80% efficiency. Pumped storage is a good balance between low cost and high efficiency. However, it requires natural resources. The Mott MacDonald report, Storage cost and technical assumptions for BEIS (Department for Business, Energy and Industrial Strategy) suggests the equivalent of four Coire Glas-scale installations in the UK by 2050. The model optimistically assumes that ten more similar additional Coire Glas-size pumped storage schemes could be installed.
This page on the Strathclyde University web site, gives these GWh figures for the possible amounts of pumped-storage that can be added to existing hydroelectric schemes.
Strathclyde’s total for extra storage is over 500 GWh.
Distributed Batteries
The article says this about distributed batteries.
A distributed battery assumption could be configured with multiple 10 kWh batteries which typically cost about £3,000 installed, near or in homes with a heat pump. This could be coupled with larger battery storage systems like the £30m Chapel Farm 99 MWh battery installation near Luton, commissioned in 2023. The small battery systems at each home are similar to the proposed virtual power plants using electric vehicle battery capacity to help balance the grid. Placing these batteries at locations with grid limitations could reduce the costs of upgrading the grid system. This is a more expensive energy storage scheme than pump storage and for the purposes of the model it is assumed that battery storage schemes are limitless. In both cases cited, the cost is £300/kWh. Battery efficiency varies significantly with temperature, and typically ranges from about 90% to 97%. As the system design needs to be focused on the coldest periods, the model is optimistically assuming 93% efficiency, which would require many of the batteries to be in a heated environment.
New lower-cost alternative batteries are also being developed.
Hydrogen Generation
The article says this about hydrogen generation.
Alternatively, the electricity generated from wind energy could be used in the electrolysis of water to produce hydrogen. While the fully installed electrolysis equipment costs about £2,100/kW, hydrogen storage in specially built cylinders is relatively cheap at about £23/kWh. The model, however, assumes salt mine storage which the US DoE in their report, Grid Energy Storage Technology Cost, calculate at a total system cost for hydrogen of $2/kWh. Electrolysis is the least efficient energy storage option, with a conversion efficiency of 75%, including compression. The waste heat from this conversion loss is useful for industrial heating, or in a district heating system. This has been ignored for simplicity.
Pumped storage, distributed batteries and hydrogen electrolysers distributed all over the UK, will mop up all the spare electricity and release it to heat pumps and for charging cars as necessary.
The hydrogen will be used for heating, to decarbonise difficult-to-decarbonise industries and provide fuel for hydrogen-powered vehicles, railways and shipping.
Curtailment will be a thing of the past.
The UK Offshore Wind Potential
The article says this about the UK offshore wind potential.
The UK government target for wind generation by 2030 is 50 GW. The UK offshore wind potential is reliable and available and has been estimated to be as high as 2,200 GW. There are, however, a few low wind periods that can last for several days.
I am not going to argue with 2,200 GW, but I will say that a lot of that will be used to generate hydrogen offshore.
Conclusions
This is the article’s main conclusion.
A wind-based supply for heating will mean that large quantities of potentially unused electricity will be available for more than 90% of the year, for potentially very low cost. While this could appear wasteful, it provides further synergistical opportunities for the decarbonisation of other interruptible energy duties, such as production of hydrogen for road transport or supplying heat via heat pumps for interruptible industries.
The sensitivity analysis shows that these conclusions are robust even with significant variation in the assumptions on equipment cost, efficiency, and other electricity source options.
This is also said about the most cost-effective solution.
A cost-effective national heat pump-only solution is about £500bn (50%) more expensive than a hydrogen-only boiler solution. The most cost-effective system is a combination of the two, £100bn cheaper than the hydrogen-only solution, and £600bn cheaper than the heat pump-only solution.
A cost-effective national heat pump-only solution has a system efficiency 40% lower than the hydrogen-only solution, requiring more than 750 GW of installed wind capacity. A hydrogen boiler solution requires less than 500 GW but the most efficient system, however, is a combination of the two.
The conclusions mean that everybody will be able to use the most appropriate solution for their circumstances for both heating their housing or powering their vehicles, as there will be massive supplies of affordable electricity and hydrogen.
How Will Everything Be Paid For?
Just as Germany and others built its industry on cheap Russian gas, it will now choose to use the plentiful and reliable UK electricity and hydrogen to rebuild its industry.
University Of Leeds Drills Test Boreholes For Geothermal Project To Heat Campus
The title of this post, is the same as that of this article on Ground Engineering.
This is the sub-heading.
A team of researchers at the University of Leeds has started to test the potential to use geothermal energy to heat buildings on campus in a bid to tackle its carbon emissions.
These three paragraphs outline the project.
The project involves drilling eight test boreholes into the ground at several locations on the campus at depths of between 150m to 250m. Work started last Monday (29 January) and will continue until May 2024.
Some of the holes will be water wells at around 50cm in diameter that will look for underground aquifers at the right temperature to use for geothermal heat. Other holes will be monitoring wells at around 15cm in diameter which the team will use to check what impact extracting heat from the ground has on the surrounding areas.
The geothermal project brings together the team responsible for the maintenance and development of the University estate and an academic team which includes professor of geo-energy engineering Fleur Loveridge, research fellow in geosolutions David Barns and lecturer in applied geophysics and structural geology Emma Bramham.
The Wikipedia entry for Geothermal Energy In The United Kingdom, is a very informing and ultimately surprising read.
This is the introductory paragraph.
The potential for exploiting geothermal energy in the United Kingdom on a commercial basis was initially examined by the Department of Energy in the wake of the 1973 oil crisis. Several regions of the country were identified, but interest in developing them was lost as petroleum prices fell. Although the UK is not actively volcanic, a large heat resource is potentially available via shallow geothermal ground source heat pumps, shallow aquifers and deep saline aquifers in the mesozoic basins of the UK. Geothermal energy is plentiful beneath the UK, although it is not readily accessible currently except in specific locations.
With more projects like that at the University of Leeds and the development of better technology, I am confident that over the next few years, we will extract more heat from beneath our feet.
The Anonymous Widower 