Gravitricity Makes Hydrogen Play With FlexiStore
The title of this post, is the same as that of this article on The Engineer.
This is the sub-heading.
Edinburgh-based energy storage firm Gravitricity is looking to green hydrogen, bringing a new underground storage solution to market.
The system is explained with a large graphic, showing an electrolyser, a FlexiStore and a hydrogen filling station, with this paragraph underneath.
Known as FlexiStore, the concept involves purpose-built, steel-lined shafts capable of holding up to 100 tonnes of compressed hydrogen at 220 bar – around 3.33GWh of energy, or enough to refuel over 1,000 HGVs, according to Gravitricity. Unlike naturally occurring underground storage like salt caverns, FlexiStores could be positioned anywhere, with the current plan to co-locate the storage as close as possible to renewable generation. Gravitricity says a single FlexiStore could serve a 460MW wind farm and that 1,000 units could meet the UK’s predicted hydrogen storage needs in 2050.
Note.
- The concept certainly solves the problem of storing hydrogen on a country-wide basis.
- I suspect, a machine could be designed and built to create the shafts.
- A 3.33 GWh store could supply 460 MW for nearly 33 hours. As a Control Engineer, that sounds a good balance for backing up a wind farm!
As ARUP has been involved in a feasibility study, I suspect there’s a fair chance that FlexiStores can be built.
Second Life Energy Storage Firm Smartville Inc On Modules vs Packs, Ramp-Up Plans And Tesla’s Approach
The title of this post, is the same as that of this article on Energy Storage News.
I like the concept of taking the life-expired batteries out of electric vehicles and giving them a second life as grid batteries.
Smartville seem to have taken this simple and useful idea to a new level.
These are my thoughts.
The Internet Of Batteries
By the use of clever software, it appears, that they can control different types of battery packs, in a manner that could be called the Internet of Batteries.
They can also measure the state and performance and calculate the replacement date of each battery pack.
The Mother Of All Batteries
The implementation of this concept in their MOAB product allows the controlling software to manage a number of battery packs precisely to deliver a battery of the precise number of MWh, that the customer ordered.
- Provided an interface driver can be written, any type and make of battery pack can be incorporated.
- Nearly new, salvaged or elderly battery packs cab be used.
- The operating system can predict, when a battery pack must be replaced.
- Smartville are planning to install a 4MWh grid battery in central California that will be co-located with an existing power plant.
In some ways, the controlling software, is like the Chief Coach of a tug-of-war team, of mixed sexes, weights and strengths, that by asking for the right level of power from each member, gets the required performance.
Working With Tesla
The article talks about why, they don’t work with Tesla, where this is said.
Our experience in the US is that Tesla does not seem to be interested in working with outside partners. They’ve also publicly stated that they’re not focused on battery repurposing, not in their current business model at least, which I think might change over time. But that’s their public stance at the moment. We’re absolutely open to working directly with them but the opportunity hasn’t presented itself.
Does this indicate, that Tesla and Elon Musk are not the easiest people to deal with?
Conclusion
I shall be following Smartville.
SSE Thermal Charts Path To Green Hydrogen Future With First-Of-A-Kind Project
The title of this post, is the same as that of this press release from SSE Thermal.
This is the sub-heading.
SSE Thermal is developing a first-of-a-kind project in the Humber which would unite hydrogen production, storage and power generation in one location by the middle of this decade.
These paragraphs explain the project.
The Aldbrough Hydrogen Pathfinder project will support the evidence base for wider deployment of flexible hydrogen power in the UK’s net zero journey and is a major enabler of SSE Thermal’s wider Humber ambitions.
Located at SSE Thermal and Equinor’s existing Aldbrough Gas Storage site on the East Yorkshire coast, the project is designed to demonstrate the interactions between hydrogen electrolysis, hydrogen cavern storage and 100% hydrogen dispatchable power.
The concept would see green power sourced from grid through Renewable PPAs, in compliance with the Low Carbon Hydrogen Standard. Hydrogen would then be produced via a 35MW electrolyser before being stored in a converted salt cavern and then used in a 100% hydrogen-fired turbine, exporting flexible green power back to grid at times of system need. In future, hydrogen storage will also benefit offtakers in other sectors, for example in industry, heat or transport.
Note.
- The Aldbrough Gas Storage site currently can store the equivalent of 320 GWh of electricity, It is currently being expanded to be one of the largest hydrogen stores in the world according to this page on the SSE web site.
- SSE Thermal are proposing to build a hydrogen-powered power station at Keadby to the South of the Humber. The press release says this power station could have a peak demand of 1,800MW of hydrogen.
- Aldbrough at its current size could keep the Keadby hydrogen-powered power station going for a week. But Aldbrough will be a lot bigger than the current 320 GWh.
- The Hornsea and Dogger Bank wind farms off the coast of East Yorkshire will have a capacity of at least 13.5 GW.
- A 35 MW electrolyser will produce 15.2 tonnes of hydrogen per day.
SSE and Equinor hope to be storing hydrogen by 2025.
Conclusion
It is an enormous project and it will surely grow with more electrolysers and hydrogen-powered power stations.
Hyperbat In Multimillion-Pound Deal To Supply Battery Packs For Lotus Supercar
The title of this post, is the same as that of this article on The Times.
Lotus or supercars for that matter, will not be a big market for battery packs, but they will be a high-profile one. The article in The Times may well flush out a few good sales leads from companies who want to decarbonise their products.
Many years ago, I did a consultancy job for Cummins, where my software was used to look for faults in their engine testing system. One of their engineers explained to me that they had a sales and production philosophy that could handle all markets from the large down to small niche ones. He said that we can’t tell which niche markets are going to be successful.
In the last couple of years Cummins have embraced hydrogen very strongly and it looks like they are adopting a similar philosophy.
So in the Cummins engine business model, it looks like the niche market is important.
I suspect that what goes for the diesel engine market will also go for the electric transmission market, with niche markets being nicely profitable and an important part of sales.
It looks to me that Hyperbat are going for that market, backed up by the engineering and battery experience of Williams Advanced Engineering and the manufacturing knowledge and logistics of Unipart.
Note that Williams Advanced Engineering is now owned by Australian billionaire; Andrew Forrest, through his company; Fortescue Future Industries. I wrote about this purchase in Fortescue Buys Williams Engineering In Major Push Into High Performance Batteries.
On the Hyperbat web site, this is said about their manufacturing facility.
The facility is about to double in size to meet current needs, with plans to double again in the next 2 years.
The factory is based on the site of a former exhaust plant and reintroduces manufacturing to the area, with an environmentally sustainable future.
Capacity of the factory is approximately 10,000 packs per year.
I;m sure the company, has enough backing for a very successful future.
Increased CCS Can Decarbonise GB Electricity Faster On Route To Net Zero
The title of this post, is the same as that of this news item on the SSE web site.
This is the first paragraph.
Building more power carbon capture and storage plants (Power CCS) could significantly accelerate the UK’s plans to decarbonise the GB electricity system on route to net zero, according to new analysis commissioned by SSE.
I am not surprised, as in my time, I have built several production, storage and distribution mathematical models for products and sometimes bringing things forward has beneficial effects.
These three paragraphs summarise the findings.
The UK Government’s proposed emissions reductions from electricity for 2035 could be accelerated to 2030 by combining its 50GW offshore wind ambition with a significant step up in deployment of Power CCS. This would require 7-9GW (equivalent to 10-12 plants) of Power CCS compared to the current commitment of at least one Power CCS plant mid-decade, according to experts at LCP Delta.
Replacing unabated gas with abated Power CCS generation will deliver significant reductions in greenhouse gas emissions. The analysis suggests that adding 7-9GW Power CCS to the UK’s 2030 offshore wind ambition will save an additional 18 million tonnes of CO2 by 2040, by preventing carbon emissions during periods when the sun isn’t shining, and the wind isn’t blowing.
Gas consumption for electricity generation would not significantly increase, given the 7-9GW Power CCS would displace older and less efficient unabated gas power stations already operating and reduce importing unabated gas generation from abroad via the interconnectors. Importantly, Power CCS can provide a safety net to capture emissions from any gas required to keep the lights on in the event of delays to the roll out of renewables or nuclear.
The report is by LCP Delta, who are consultants based in Edinburgh.
The report says this about the transition to hydrogen.
Power CCS also presents significant opportunities to kickstart, then transition to, a hydrogen economy, benefitting from the synergies between CCS and hydrogen, including proximity to large-scale renewable generation and gas storage facilities which can support the production of both electrolytic and CCS-enabled hydrogen.
And this about the reduction in carbon emissions.
The existing renewables ambition and the accelerated Power CCS ambition are expected to save a total of 72 million tonnes of CO2 by 2040 compared to commitments in the UK’s Net Zero Strategy from October 2021.
I don’t think there’s much wrong with this analysis.
But of course the greens will trash it, as it was paid for by SSE.
I have a few thoughts.
Carbon Capture And Use
I believe we will see a great increase in carbon capture and use.
- Carbon dioxide is already an ingredient to make Quorn.
- Carbon dioxide is needed for fizzy drinks.
- Carbon dioxide can be fed to tomatoes, salad plants, herbs and flowers in giant greenhouses.
- Carbon dioxide can be used to make animal and pet food.
- Carbon dioxide can be used to make building products like plasterboard and blocks.
- Carbon dioxide can be added to concrete.
- Carbon dioxide can be used as a refrigerant and in air-conditioning. There are one or two old Victorian systems still working.
Other uses will be developed.
Carbon Capture Will Get More Efficient
Carbon capture from power stations and boilers, that use natural gas is a relatively new process and its capture will surely get better and more efficient in the next few years.
Gas From INTOG
I explain INTOG in What Is INTOG?.
One of INTOG’s aims, is to supply electricity to the oil and gas rigs and platforms in the sea around the UK.
Currently, these rigs and platforms, use some of the gas they produce, in gas turbines to create the electricity they need.
- I have seen reports that ten percent of the gas that comes out of the ground is used in this way.
- Using the gas as fuel creates more carbon dioxide.
Decarbonisation of our oil and gas rigs and platforms, will obviously be a good thing because of a reduction of the carbon dioxide emitted. but it will also mean that the gas that would have been used to power the platform can be brought ashore to power industry and domestic heating, or be exported to countries who need it.
Gas may not be carbon-neutral, but some gas is more carbon-neutral than others.
SSE’s Plans For New Thermal Power Stations
I have taken this from SSE’s news item.
SSE has deliberately chosen to remain invested in the transition of flexible thermal electricity generation due to the key role it plays in a renewables-led, net zero, electricity system and is committed to decarbonising the generation.
Together with Equinor, SSE Thermal is developing two power stations equipped with carbon capture technology. Keadby 3 Carbon Capture Power Station is based in the Humber, the UK’s most carbon-intensive industrial region, while Peterhead Carbon Capture Power Station is located in the North East of Scotland. Combined, the two stations could capture around three million tonnes of CO2 a year.
Studies have shown that Keadby and Peterhead Carbon Capture Power Stations could make a lifetime contribution of £1.2bn each to the UK economy, creating significant economic opportunity in their respective regions. Both will be vital in supporting the huge amount of renewables which will be coming on the system.
SSE Thermal and Equinor are also collaborating on Keadby Hydrogen Power Station, which could be one of the world’s first 100% hydrogen-fuelled power stations, and Aldbrough Hydrogen Storage, which could be one of the world’s largest hydrogen storage facilities.
Note.
- SSE appear to think that gas-fired power stations with carbon capture are an ideal backup to renewables.
- If gas is available and it can be used to generate electricity without emitting any carbon dioxide, then why not?
- Hydrogen is coming.
Things will get better.
Is A Virtuous Circle Developing?
Consider.
- Spare wind electricity is turned into hydrogen using an electrolyser or perhaps some world-changing electro-chemical process.
- The hydrogen is stored in Aldbrough Hydrogen Storage.
- When the wind isn’t blowing, hydrogen is used to backup the wind in Keadby Hydrogen power station.
- The other Keadby power stations can also kick in using natural gas. The carbon dioxide that they produce, would be captured for storage or use.
- Other users, who need to decarbonise, can be supplied with hydrogen from Aldbrough.
Note.
- Gas turbines are throttleable, so if National Grid wants 600 MW to balance the grid, they can supply it.
- As time progresses, some of the gas-fired power stations at Keadby could be converted to hydrogen.
- Rough gas storage is not far away and could either store natural gas or hydrogen.
- Hydrogen might be imported by tanker from places like Africa and Australia, depending on price.
Humberside will be levelling up and leading the decarbonisation of the UK.
If you have an energy-hungry business, you should seriously look at moving to Humberside.
UK Govt Awards Almost GBP 33m To Innovative Energy Storage Projects
The title of this post is the same as that of this article on Renewables Now.
This is the first paragraph.
The UK government has awarded GBP 32.9 million (USD 39.7m/EUR 38.3m) in funding to five innovative energy storage projects under the second phase of its Longer Duration Energy Storage competition.
These are the projects.
StorTera
StorTera has secured GBP 5.02 million to create a prototype demonstrator of its single liquid flow battery (SLIQ) technology.
The company’s main product is the SLIQ Flow Battery, for which it gives the headline of Reliable, Economical Energy For 20 Years.
This is a description of the technology.
The revolutionary StorTera SLIQ single liquid flow battery offers a low cost, high performance energy storage system made with durable components and supported by our flexible and adaptable inverter and control system. The StorTera SLIQ battery brings the following benefits/advantages:
- Low levelised cost of storage and capital cost
- Long lifetime of up to 20 years (min. 7,500 cycles)
- Long duration energy with the energy and power capacity easily and independently scalable
- Safe with no cooling requirements and high flash point materials
- Fully recyclable at the end of lifetime
This is said about costs – Using low cost materials and manufacturing techniques, we predict capital costs of approximately £120/kW and £75/kWh by 2022.
I feel there could be something about this technology, but we’ll only know, when the demonstrator is fully working.
Sunamp
Sunamp will get GBP 9.25 million to test its thermal storage system in 100 homes across the UK.
On their home page, Sunamp has a banner of World Leading Thermal Technologies, with this description underneath.
Sunamp designs and manufactures space-saving thermal storage that makes UK homes, buildings and vehicles more energy-efficient and sustainable, while reducing carbon emissions and optimising renewables.
They do appear to have sold something, which is always a useful thing to do.
This page on their web site, describes their Thermino Thermal Storage For Domestic Hot Water, where this is said.
Thousands of Sunamp thermal batteries are already in homes across the UK storing heat from low-carbon energy sources and releasing it for mains-pressure hot water when needed.
Our Thermino batteries replace traditional hot water cylinders – direct (for grid electricity and solar PV) or indirect (for boilers and heat pumps).
They are up to four times smaller than the equivalent hot water tank because they are filled with our energy-dense phase change material, Plentigrade. This means that heat pump systems can be installed where otherwise they wouldn’t fit, for example.
The key seems to be this substance called Plentigrade!
This page on their web site describes Plentigrade.
Under a heading of Storing Energy As Heat And Releasing It When, And Where, It’s Needed, this is said.
Sunamp thermal batteries are energy-saving thermal stores containing Plentigrade: our high-performance phase change materials (PCMs) that deliver heating or cooling reliably, safely and efficiently.
Plentigrade, with its perpetual phase changing ability, is at the core of our products.
Our breakthrough technology was created in collaboration with the University of Edinburgh, ranked among the top 20 universities in the world, and the UK’s national synchrotron particle accelerator, Diamond Light Source. To find out more about the chemistry behind Plentigrade, read our blog.
Note.
- This product almost looks to be too good to be true.
- But I’ve checked and it doesn’t seem to have appeared on Watchdog.
- It’s yet another breakthrough, that has used the Diamond Light Source.
- How many other developments would happen with a Diamond 2 in the North, as I wrote about in Blackpool Needs A Diamond?
I have a feeling, that my house needs one of Sunamp’s thermal batteries.
University of Sheffield
The article says this about a grant to the University of Sheffield.
The University of Sheffield has been awarded GBP 2.6 million to develop a prototype modular thermal energy storage system designed to provide optimised, flexible storage of heat within homes.
There are several thermal batteries around for houses.
RheEnergise
The article says this about a grant to RheEnergise.
With a GBP-8.24-million grant, RheEnergise Ltd will build a demonstrator of its High-Density Hydro pumped energy storage system near Plymouth. The technology uses a fluid denser than water to generate electricity from gentle slopes.
I wrote about this in Plan For £8.25m Plymouth Energy Plant To Generate Power From Cream-Like Fluid.
EDF UK R&D
The article says this about a grant to EDF UK R&D.
The government is also backing with GBP 7.73 million an initiative of EDF UK R&D and its partners, the University of Bristol, Urenco and the UK Atomic Energy Authority (UKAEA), to develop a hydrogen storage demonstrator using depleted uranium at UKAEA’s Culham Science Centre in Abingdon, Oxfordshire.
I wrote about this in Innovative Hydrogen Energy Storage Project Secures Over £7 million In Funding.
Conclusion
They are a mixed bunch of ideas from around the UK, that I think will produce at least two good winners.
Ukraine Tender Would Pair Hydroelectric Plants With Large-Scale Battery Storage
The title of this post, is the same as that of this article on Energy Storage News.
This is a must-read article, as it outlines the damage that Russia is doing to Ukraine’s energy generation.
It also reports how the World Bank is trying to help.
Innovative Hydrogen Energy Storage Project Secures Over £7 million In Funding
The title of this post, is the same as that of this press release from the University of Bristol.
These two paragraphs outline the project.
A consortium, involving the University of Bristol, has been awarded £7.7m from the Net Zero Innovation Portfolio (NZIP) of UK Government’s Department for Business, Energy & Industrial Strategy (BEIS) to develop pioneering hydrogen storage.
The University, EDF UK, UKAEA and Urenco will together develop a hydrogen storage demonstrator, in which hydrogen is absorbed on a depleted uranium ‘bed’, which can then release the hydrogen when needed for use. When stored, the hydrogen is in a stable but reversible ‘metal hydride’ form. The depleted uranium material is available from recycling and has been used in other applications such as counterbalance weights on aircraft.
I particularly like this paragraph from Professor Tom Scott.
Professor Tom Scott from the University’s School of Physics and one of the architects of the HyDUStechnology, said: “This will be a world first technology demonstrator which is a beautiful and exciting translation of a well proven fusion-fuel hydrogen isotope storage technology that the UK Atomic Energy Authority has used for several decades at a small scale. The hydride compounds that we’re using can chemically store hydrogen at ambient pressure and temperature but remarkably they do this at twice the density of liquid hydrogen. The material can also quickly give-up the stored hydrogen simply by heating it, which makes it a wonderfully reversible hydrogen storage technology.”
It’s elegant and it certainly, is an unusual method of storing hydrogen.
I do see a problem in that depleted uranium is controversial because of its use in munitions; most notably in the Gulf War.
I also see its heavy weight being rather a disadvantage in storing hydrogen for mobile applications.
So, I will keep an open mind on this technology.
Plan For £8.25m Plymouth Energy Plant To Generate Power From Cream-Like Fluid
The title of this post, is the same as that of this article on PlymouthLive.
These two paragraphs outline the project.
Plymouth’s Hemerdon tungsten mine has been chosen as the site of a pioneering £8.25m hydro energy plant which would see a cream-like fluid used to generate electricity. London-based renewable energy company RheEnergise wants to start construction of the High-Density Hydro storage system at the Plympton site as early as summer 2023.
The company has already spoken to the parish council and is to submit plans to Devon County Council soon. It hopes permission will be given and the site will be in operation by the end of 2023 and then trialled for two years before the technology is rolled out nationally and worldwide.
Note.
- RheEnergise has a web page, which describes how their High-Density Hydro storage system works.
- The system is sized at 250kW/1MWh and is described in the article as a demonstrator plant.
- In the future, rojects will range from 5MW to 100MW of power and can work with vertical elevations as low as 100m or less.
This sentence from the article lays out the potential of the system.
RheEnergise’s analysis of potential project opportunities has indicated there are about 6,500 possible sites in the UK, about 115,000 in Europe, about 345,000 in North America and about 500,000 in Africa and the Middle East.
This method of storing energy could be very useful.
Where Is Hemerdon Tungsten Mine?
This is a Google Map of the Plymouth area.
The red arrow indicates the Hemerdon Tungsten Mine, which has a Wikipedia entry as Drakelands Mine, where this is said about the last three years.
Tungsten West plc, which floated on the London Stock Exchange’s Alternative Investment Market on 21 October 2021,[49] have taken over the mine. They have conducted a review starting from the basics, of what is required to fix the problems that caused Wolf Minerals to fail. A better understanding of the mineralogy, with associated changes to the processing stream, and aggregate sales should lead to the mine re-opening at scale in 2022.
Tungsten West’s share price has had an up-and-down day. But are they adding energy storage to their income streams?
From the map, it does seem to be a possibility.
Highview Power In The Daily Express
This article in the Daily Express is entitled The Storage Sites Around The UK That Could Provide Cheap Power To Millions Of Homes.
Highview Power gets a large mention for its plan for twenty storage sites around the UK.
This is said about their planned sites at Carrington and on Humberside.
It is hoped that the first plant, a £250million Manchester station, will come online as early as 2024. It will have a 30megawatts capacity, able to store 300megawatt hours of electricity, enough to supply 600,000 homes with clean power for an hour.
The next plants will be even larger in scale, with four a five planned for Humberside with a 200megawatt/2.5gigwatt hour capacity. The CRYOBattery site would be able to store excess energy generated by the Dogger Bank, Hornsea and Sofia wind farms.
There is also a comprehensive map, with sites indicated at places like Aberdeen, Anglesey, Inverness, Liverpool, Montrose, Norfolk and Sizewell.
The sites seem to be following the wind, which is where excess power needs to be stored and released, when the wind is on strike.
The Anonymous Widower 