Gravitricity Battery Generates First Power At Edinburgh Site
The title of this post, is the same as that of this article on the BBC.
This is the first paragraph.
A project to create electricity from gravity has generated its first power at a demonstrator site in Edinburgh.
The article gives a good explanation of the uses of the Gravitricity system and shows a video.
I suppose, I should declare an interest, in that I have invested money in Gravitricity through crowdfunding.
But then I like the concept and they are also using some of the best winch technology in the world from specialist company: Huisman.
Rolls-Royce Seeks Private Funds To Power Nuclear Project
The title of this post, is the same as that of this article on The Times.
The article is based on this press release on the Rolls-Royce web site, which is entitled More Power And Updated Design Revealed As Nuclear Power Team Targets First Place In The Assessment Queue In Autumn 2021.
This is the first two paragraphs.
The consortium, led by Rolls-Royce, which is creating a compact nuclear power station known as a small modular reactor (SMR), has revealed its latest design and an increase in power as it completes its first phase on time and under budget.
It has also announced it is aiming to be the first design to be assessed by regulators in the second half of 2021 in the newly-opened assessment window, which will keep it on track to complete its first unit in the early 2030s and build up to 10 by 2035.
It would appear that they are following AstraZeneca’s example and building the relationships with the regulators early, so the process of regulation doesn’t delay entry into service.
An Updated Design
These two paragraphs describe the design changes.
As the power station’s design has adjusted and improved during this latest phase – with more than 200 major engineering decisions made during this latest phase – the team has optimised the configuration, efficiency and performance criteria of the entire power station , which has increased its expected power capacity, without additional cost, from 440 megawatts (MW) to 470MW.
The refreshed design features a faceted aesthetic roof; an earth embankment surrounding the power station to integrate with the surrounding landscape; and a more compact building footprint, thanks to successes optimising the use of floor space.
These changes appear to be positive ones.
Transformation To A Focussed Business
Rolls-Royce are transforming the current consortium to an as yet unnamed stand-alone business, as detailed in this paragraph from the press release.
With a focus on continuing its progress at pace, the UK SMR team is transitioning from being a collaborative consortium to a stand-alone business, which will deliver a UK fleet of power stations to become a low carbon energy bastion alongside renewables, while securing exports to make the power station a key part of the world’s decarbonisation toolkit.
Are Rolls-Royce aiming to repeat the success they’ve had with Merlins in World War II and large turbofan engines for airliners with small modular nuclear reactors that decarbonise the world? The strategy is certainly not going against the heritage of the company.
Use Of A Small Modular Nuclear Reactor
This paragraph from the press release outlines a few uses.
The power station’s compact size makes it suitable for a variety of applications, helping decarbonise entire energy systems. Each power station can supply enough reliable low carbon power for around one million* homes, or be used to power net zero hydrogen and synthetic aviation fuel manufacturing facilities, desalination plants or energy intensive industrial sites.
Their size would appear to increase the number of applications.
Hydrogen Production
I particularly like the idea of using an SMR to produce hydrogen for chemical feedstock or to make steel.
I indicated this in Will INEOS And Rolls-Royce Get Together Over Hydrogen Production?
I estimate that a 470 MW SMR would produce around 4,900 tonnes of hydrogen per day.
The numbers certainly seem convenient.
Cost Of Energy And Capital Costs
Tom Samson, Chief Executive Officer of the UK SMR consortium is quoted as saying.
Nuclear power is central to tackling climate change, securing economic recovery and strengthening energy security. To do this it must be affordable, reliable and investable and the way we manufacture and assemble our power station brings down its cost to be comparable with offshore wind at around £50 per megawatt-hour.
Hinckley Point C has a strike price of over £80 per megawatt-hour.
The release also gives a price of around £2.2 billion per unit dropping to £1.8 billion by the time five have been completed.
Benefits To The UK
The press release lists these benefits to the UK.
- create 40,000 regional UK jobs by 2050
- generate £52 billion of economic benefit
- have 80% of the plant’s components sourced from the UK
- target an additional £250 billion of exports – memoranda of understanding are already in place with Estonia, Turkey and the Czech Republic
The value of exports would indicate export sales of over a hundred reactors.
Lifetime
The press release indicates the following about the lifetime of the reactors.
- The reactor will operate for at least 60 years.
- The design, which will be finalised at the end of the regulatory assessment process, proposes that all used fuel will be stored on each site for the lifetime of the plant.
I would assume that Rolls-Royce are developing a philosophy for taking the SMRs apart at the end of their life.
Construction
This paragraph from the press release talks about the construction process.
The power station’s design cuts costs by using standard nuclear energy technology used in 400 reactors around the world, so no prototyping is required. The components for the power station are manufactured in modules in factories, before being transported to existing nuclear sites for rapid assembly inside a weatherproof canopy. This replicates factory conditions for precision activities and further cuts costs by avoiding weather disruptions. The whole sequence secures efficiency savings by using streamlined and standardised processes for manufacturing and assembly, with 90% of activities carried out in factory conditions, helping maintain extremely high quality. In addition, all spoil excavated will be reused on site to build the earth embankment, removing the need for it to taken off site, reducing road journeys that are both financially and environmentally costly.
I have talked to project managers, who have assembled factory-built railway stations and their experiences would back the Rolls-Royce method of construction.
My project management knowledge would also indicate, that the construction of an SMR could be much more predictable than most construction projects, if the factory-built modules are built to the specification.
Funding
According to the article in The Times, the consortium now seems to be in line for £215 million of Government funding, which will unlock £300 million of private funding.
Conclusion
It looks like this project will soon be starting to roll.
Gravitricity Celebrates Success Of 250kW Energy Storage Demonstrator
The title of this post, is the same as that of this article on the Solar Power Portal.
I have already posted about this success in Gravitricity Battery Generates First Power At Edinburgh Site.
But the news story has now been mentioned in several respected publications and web sites.
So this idea, based on traditional Scottish products of heavy weights and girders seems to be getting valuable publicity.
The demonstrator is only small and uses two 25 tonne weights and a fifteen metre tower.
This is only a storage capacity of only 2.04 kWh, but the company is talking of weights totalling up to a massive 12,000 tonnes.
With a fifteen metre tower, that would be 490 kWh.
Note.
- The shafts at Kellingley Colliery in Yorkshire are 800 metres deep.
- The TauTona mine in South Africa is 3.9 kilometres deep
- In this article in The Engineer, Gravitricity talk about weights of up to 12,000 tonnes.
These are typical storage capacities.
- Kellingley – 50 tonnes – 109 kWh
- Kellingley – 12,000 tonnes – 26.15 MWh
- TauTona – 50 tonnes – 531 kWh
- TuaqTona = 12,000 – 127.5 MWh
Accountants before they invest in a company look at the financial figures. As an engineer, I look at the numbers in the science behind their claims.
If the engineering can be made to work, these figures are to say the least; very promising.
They are also beautifully scalable.
If say your application needed a 2 MWh battery and you had a 400 metre shaft available, you can calculate the weight needed. It’s around 1836 tonnes.
The Solar Power Portal article finishes with these two paragraphs.
The company will now look to rollout the technology in a series of full-scale 4-8MW projects, with conversations already underway with mine owners in the UK, Scandinavia, Poland and the Czech Republic, it said. Additionally, in South Africa Gravitricity is working closely with mine operator United Mining Services as part of a programme funded by an Innovate UK Energy Catalyst programme to identify potential schemes.
“A key feature of our full-scale projects will be their long life” added Blair. “Once built, our system can last for over 25 years, with no loss in output or degradation over time. This makes gravity storage cost-effective. And unlike batteries, we have no reliance on rare metals such as cobalt and nickel which are becoming increasingly scarce in the global drive to electrification.”
Note.
- I assume that they are 4-8 MWh projects.
- Charlie Blair is the Managing Director of Gravitricity.
- A weight of 1836 tonnes would give 4 MWh in the 800 metre shaft at Kellingley.
I wouldn’t be surprised that those owning a deep empty hole in the ground will be starting conversations with Gravitricity!
Conclusion
I am not worried, that I bought a few shares in Gravitricity in the crowd-funding last year!
All this good publicity from the BBC, Good News Network, Science, The Engineer, The Times and other media sites won’t harm my investment.
Gravitricity Battery Generates First Power At Edinburgh Site
The title of this post, is the same as that of this article on the BBC.
This is the first paragraph.
A project to create electricity from gravity has generated its first power at a demonstrator site in Edinburgh.
This is only a demo to prove the technology, but all great oaks start as acorns.
I have great hopes for Gravitricity and I should declare an interest, as I bought a few shares in a crowdfunding.
Oxford Vaccine Team Use Same Tech To Revolutionise Cancer Treatment
The title of this post, is the same as that as an article on The Times.
I’m no medic, but I know enough about cancer, vaccines and the human immune system, to know that the team that developed the Oxford vaccine, could be on to something here. Especially, as they have got backing from Google’s venture capital arm.
Never Remove A Feature In A Computer Program
One of my golden rules in updating computing programs, is never to remove a feature however obscure it is. The reason is obvious, in that if the feature exists someone will find an extremely useful way to use it.
Here are two changes in other software systems that are annoying me at present.
The Windows 10 Photo Viewer
I use an SD card to capture images in my camera..
On my old laptop with Windows 7, if I was looking at a folder of images, I could scroll past the last image to the first and vice-versa, which was a very useful feature, when looking for an obscure image.
Windows 10 doesn’t have this feature and it is very annoying.
Zopa’s New System
I invest some of my savings in Zopa and use it as a high-interest one month-access deposit account in a concept that I call hybrid banking, which I wrote about in The Concept Of Hybrid Banking.
The old system used to give two figures about your money, that was yet to be invested.
- The money sitting there waiting in the queue for new borrowers.
- The allocated money waiting for the borrower to be checked and sign up.
The first figure was invaluable, as by watching it, it enabled me to see how constipated the system was. There’s not much point, of putting more money in Zopa, if it will just sit there. It could be more productive in crowdfunding an outstanding idea.
But in the new system, they have added these two figures together.
It’s not catastrophic, but it’s a nuisance.
Conclusion
Never disobey, the title of this post!
Memories Of Old Money
I don’t specifically remember Decimalisation-Day on the 15th February, 1971, which is fifty years ago today.
But I do have a few memories of the old currency.
- Before 1970, I served in pubs and will always remember that three bottles of Guinness at 1/8 each cost five shillings.
- I once complained to British Rail about a late train from Glasgow to Manchester and received a nine shilling postal order in return.
- I also remember the Kings Head theatre pub did everything in old money for some years, until the till broke.
You just got on with the change.
Inappropriate Language
My bank sends a six character code of three letters and three numbers to my phone, so that I can login.
Today, the three letters were KKK.
How inappropriate is that?
I have complained!
Corporate Funding In Battery Storage In 2020 Was Up By 136% Compared To 2019, Mercom Says
The title of this post, is the same as that of this article on Energy Storage News.
This is a paragraph, which sums up funding worldwide.
The amount of corporate funding coming into the global battery storage industry in 2020 was more than double the amount the previous year, with over US$6.5 billion raised last year compared to around US$2.8 billion in 2019.
It appears that serious money is increasingly going into energy storage.
Some very big deals involving hundreds of millions of dollars are detailed, in countries as varied as Sweden, Taiwan, the UK and the US.
Particular mention is given to a Swedish battery battery design and manufacturing start-up called Northvolt, who raised $600 million.
Most seem to be based on lithium-ion batteries, so the future could be bright for start-up companies like Cornish Lithium!
A Reason To Be Cheerful
I have a good reason to be cheerful.
When my wife died in 2007, I had the problem of what to do, with the money from the sale of her Porsche.
Peer-to-peer lending was just starting, so as a trained control engineer and mathematical modeller, I gave them a good check out!
I then put the money into an automatic peer-to-peer lender, where you deposit the money, forget it and the computer lends it out. Some of my family and friends, including my accountant were horrified.
Then came 2008 and the banking crisis. Like a Flower-Class corvette in the teeth of an Atlantic gale, it bounced safely through the crisis.
Since, then it has earned more than the stock market and grown.
And it repeated a similar safe passage through the Covid-19 crisis.
It does seem that there are always people with a good credit ratings that want to borrow money.
How much of the money borrowed in 2020 was for home improvements to cater for a home office or home schooling?
Conclusion
I blame my mother! I got my skill with and feel for numbers, from her genes and the tutoring she gave me,
She had won a scholarship to Dame Alice Owen’s School, but was unable to go to University, due to lack of funds, so she became a comptometer operator in the Account’s Department at Reeves, who used to make artist’s materials and were based just round the corner from where I now live.
That was probably, the only sort of job a mathematically bright young lady could do in the 1920s.
The Anonymous Widower 