The MailOnline’s View Of Pumped Storage Hydroelectricity
The MailOnline gives their view on Pumped Storage Hydroelectricity on the front page of their web site today.
This is the bold title.
Scotland is littered with windfarms. Now the impact of billion-pound hydro projects to store energy they produce threatens our scenic landscapes… and led critics to brand the plans – The Loch Ness Monstrosity
To my mind, the site’s language leaves no doubt that they are not keen on either windfarms or the hydro projects to store energy.
Calling the plans the Loch Ness Monstrosity, is an insult to the engineers, who have devised the plans.
The journalist, who wrote the article has made the same mistake, that many do when they write about any form of energy storage – They only give the output of the battery and not the output and the storage capacity.
Thus Red John Pumped Hydro is described in the article like this.
The £550million Loch na Cathrach venture (formerly known as Red John, after a popular local lochan), is one of the biggest renewable energy projects in the North and was granted consent by the Scottish Government in June 2021 despite strong objections from campaigners and Highland Council but has yet to be built in the hills near Dores.
The 450MW project owned by Norwegian state firm Statkraft hopes to start construction next year and be operational by 2030.
Note.
- Red John is a 450 MW project with a storage capacity of 2,800 MWh, which is conventionally shown as a 450 MW/2,800 MWh battery.
- A battery of this size can supply 450 MW for 6.2 hours, which is more than a lithium-ion battery of the same cost could manage.
- 450 MW is about the average size of a gas-fired power station.
Where the geography is suitable, pumped storage hydroelectric stations may be able to replace gas-fired power stations.
- There would be no cooling towers.
- There would be no chimneys or associated pollution.
- The electrical gubbins to connect to the grid would be the same and could probably be refurbished.
The new lake could be used for water-based activities like fishing, sailing skiing and swimming.
Conclusion
Obviously, playing the Nimby-card sells newspapers.
UK To Fund Hydro Energy Storage Projects
The title of this post, is the same as that of this article on The Times.
This is the sub-heading.
New infrastructure aims to help balance the electricity system after the rapid growth in renewables
These three paragraphs infrastructure the article.
Projects that use water to store and release energy are to be given government support, in an attempt to help manage the volatility in supply and demand as more green power enters the grid.
From next year, pumped hydro storage projects will be able to apply for government subsidies, which will be provided via a “cap and floor” mechanism. These would guarantee revenues if prices drop below a certain floor but prevent providers from charging above a ceiling when power prices are high.
Like other government support schemes, any cost will be levied on energy bills, while consumers will be paid back any money generated above the cap. It is yet to be decided precisely how the cap and floor will be set.
I feel it is reasonable to expect the system to be a success, as a similar system is used for interconnectors and this article on Offshore Energy is entitled Over $86 million To Be Split Between UK and Belgium Consumers As 1 GW Subsea Interconnector’s ‘Remarkable’ Revenues Exceed Ofgem’s Cap.
It looks like Ofgem played this right for interconnectors and the Nemo Link is making a substantial payment.
It will be interesting to see what happens when “cap and floor” contracts are assigned.
This move by Ofgem will probably have effects in two areas.
- SSE, Statera and Statkraft, who are typically developing systems at the high end with a size of about 1.5 GW/25 GWh could find money is easier to come by.
- At the lower end, companies like Highview Power, who have systems of 50 MW/300 MWh and 200 MW/2.5 GWh under development, will also benefit.
My Control Engineering thoughts are leaning towards the 200 MW/2.5 GWh systems being the popular ones. Especially as they would appear to be close to the right size to support a 1 GW wind farm for two hours.
A Highview Power Two-Hour Liquid Air Battery could fit nearly with a fleet of Two-Hour BESS.
It should be noted that CAF use a little-and-large approach to theit battery-electric trams in the West Midlands.
A large lithium-ion battery is the main storage device.
A supercapacitor handles the high-frequency response and keeps the power steady.
Pairing a Highview Power Two-Hour Liquid Air Battery and a Two-Hour BESS could achieve the same performance and possibly result in some cost savings.
Global Offshore Wind To Top 520 GW By 2040, Floating Wind To Play Major Role – Rystad Energy
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
According to Rystad Energy, global offshore wind capacity will surpass 520 GW by 2040, with floating wind installations nearing 90 GW by that time
These are the first three paragraphs.
In 2023, the offshore wind sector saw a seven per cent increase in new capacity additions compared to the previous year, said Rystad Energy. This momentum is expected to accelerate this year, with new capacity additions expected to grow by nine per cent to over 11 GW by the end of the year.
By 2040, Europe is expected to account for more than 70 per cent of global floating wind installations. Although some project delays beyond 2030 are anticipated, there will likely be a strong push to accelerate deployment, according to Rystad Energy.
As a result, floating wind capacity is projected to approach 90 GW by 2040, led by the UK, France, and Portugal, with Asia (excluding mainland China) expected to account for 20 per cent of global installations.
Note, that Rystad Energy is an independent energy research and business intelligence company headquartered in Oslo, Norway.
Implications For Energy Storage
In Grid Powers Up With One Of Europe’s Biggest Battery Storage Sites, I talk about how the 2.9 GW Hornsea Three wind farm will have a connection to the grid, that incorporates a 300 MW/600 MWh battery.
With 520 GW of offshore wind to be installed by 2040, I suspect that energy storage companies and funds will do well.
If the 520 GW of offshore wind were fitted with batteries like the 2.9 GW Hornsea Three wind farm, there would be a need for around 60 GW of battery output, with a capacity of around 120 GWh.
I doubt, there would be enough lithium for all those batteries.
Some countries like Norway, the United States, Australia, France, Spain, Japan, India, China and others will be able to develop large pumped storage hydroelectricity systems, but others will have to rely on newer, developing technologies.
The UK will be well-placed with around 80 GWh of pumped storage hydroelectricity under development and several promising developing storage technologies.
ILI Group Progresses Plans For 1.5GW Pumped Storage Hydro Project
The title of this post, is the same as that of this article on Power Technology.
This is the sub-heading.
The company has submitted a Section 36 planning application to the Scottish government.
These three paragraphs give more details.
The Intelligent Land Investments (ILI) Group has submitted a Section 36 planning application to the Scottish government for its 1.5GW Balliemeanoch pumped storage hydro project in Argyll and Bute.
The initiative will boost the UK’s renewable energy capacity and supply electricity to 4.5 million homes.
With an anticipated connection date of 2031, the project is strategically aligned with the UK’s long-term energy strategy.
Note.
- It will have a storage capacity of 45 GWh.
- It will be by far, the largest pumped storage hydroelectric power station in the UK. The under development Coire Glas pumped storage system is 24 GWh.
When the UK or Europe needs more power after completion of Balliemeanoch and Coire Glas, the Highlands of Scotland will provide the power.
Gresham House Energy Storage Reaches 1 Gigawatt Of Capacity
The title of this post, announcing a major milestone for Gresham House Energy Storage Fund appears on several web pages.
Many grid batteries are designed to give full power for two hours, so applying that rule to the Gresham House Energy Storage fleet, will mean that the total fleet would be a 1 GW/2 GWh battery.
Consider.
- In Centrica Business Solutions And Highview Power, I showed how Highview Power’s batteries could be used, instead of lithium-ion batteries.
- Highview Power’s largest battery is 200 MW/2.5 GWh, which compares well with the largest lithium-ion batteries, in the UK fleet.
- The Ffestiniog Power Station is a 360 MW/1.44 GWh pumped-storage hydroelectric power station in Wales. It is slightly smaller than Highview Power’s largest battery.
- Moss Landing Power Plant in California is proposing to have a 1,500 MW / 6,000 MWh lithium-ion battery.
- Other GWh-scale systems are under trial.
It would appear that battery systems are widening the sizes of where they can be employed.
This hopefully, will mean more competition and keener prices for battery systems.
Centrica Business Solutions And Highview Power
Centrica Business Solutions is one of Centrica’s business units.
It has its own web page, with this sub heading.
Helping Organisations Balance Planet And Profit
This is followed by this mission statement.
Centrica Business Solutions helps organisations to balance the demands of planet and profit, by delivering integrated energy solutions that help you save money and become a sustainable business.
Several pictures show some of the solutions, that Centrica Business Solutions can provide.
Centrica Business Solutions In Numbers
These numbers are given about the customers of Centrica Business Solutions.
- Customer Sites Globally – 7000
- Solar PV Installations Delivered Worldwide – 16,380+
- Solar PV Installations Delivered Power – 240 MW
- CHP Units Operated And Maintained Globally – 700 MW+
- Energy Data Points Collected Each Month Globally – 29 billion
Theses are large numbers.
How Would Centrica Business Solutions Use Highview Power’s Batteries?
The obvious use of Highview Power’s batteries is to connect them between a solar or wind farm and the grid, for when the sun isn’t shining or when the wind isn’t blowing.
Currently, there are three sizes of Highview Power batteries, either working on under development.
5MW/15 MWh
This is the demonstration system, which is described on this page of the Highview web site.
Surely, if a system of this size is very useful for Viridor, there may be other applications and customers out there.
This system will provide 5 MW for three hours.
50MW/300MWh
This is the Carrington system, which is described on this page of the Highview web site.
The Highview web site says this about output potential and connectivity.
The facility will store enough clean, renewable energy to serve the needs of 480,000 homes, as well as providing essential grid stabilisation services. The site will use existing substation and transmission infrastructure.
This system will provide 50 MW for six hours.
200MW/2.5GWh
This is the larger system for Scotland and the North East, which is under development and described on this page of the Highview web site.
The Highview web site says this about output their use.
These will be located on the national transmission network where the wind is being generated and therefore will enable these regions to unleash their untapped renewable energy potential and store excess wind power at scale.
This system will provide 200 MW for 12.5 hours.
In Rio Tinto Punts On British Start-Up To Plug Renewables Gap, I said this.
In Britain, Highview hopes to be putting four 2.5-gigawatt assets into planning this year – one in Scotland, three with Orsted in England.
This sentence was originally published in this article on the Australian Financial Review.
I believe that Centrica could find applications for all three sizes of Highview’s batteries.
Suppose, though Centrica find that an application needs say a 100 MW/1 GWh battery.
From the mathematics, I did at ICI in the 1970s, when looking at the scaling of chemical plants, I believe that Highview’s battery design could be scalable, by just using appropriately-sized turbomachinery, matched to the right number of tanks.
So the customer would get the battery size they needed!
How Much Electricity Could One Of Highview’s Batteries Store?
This image shows large LNG tanks at Milford Haven.
In Could A Highview Power CRYOBattery Use A LNG Tank For Liquid Air Storage?, I did a rough calculation and found that the largest LNG tanks could hold enough liquid air, that would be the equivalent of around one GWh.
So the image above could be a 5 GWh battery.
This image clipped from Highview’s web site, shows large tanks for liquified gas storage.
With tanks like these, Highview could be building batteries with storage to rival the smaller pumped storage hydroelectric power stations.
In Grid Powers Up With One Of Europe’s Biggest Battery Storage Sites, I talked about how Ørsted were planning the Swardeston BESS, where the 2852 MW Hornsea Three wind farm connects to the grid.
The chosen battery will be from Tessla with an output of 300 MW and a capacity of 600 MWh.
I suspect Ørsted couldn’t wait for Highview, but circumstances might have changed now, with the financing deal for the Carrington battery!
Are Combined Heat And Power Units And Highview’s Batteries Interchangeable And Complementary Technologies?
According to the Centrica Business Systems web site, they have deployed over 700 MW of CHP systems globally.
I wonder how many of these systems could have used a standard Highview battery?
Perhaps, Centrica Business Systems have done a survey and found that it could be quite a few.
So, perhaps if Centrica Business Systems had access to Highview’s technology, it would increase their sales.
In addition how many of Centrica Business Systems existing CHP systems, would be improved with the addition of a Highview battery?
It appears to me, that if Centrica Business Systems were to develop a series of standard solutions based on Highview’s technology, they could substantially increase their sales.
What Could Centrica Business Systems Do For Highview Power?
Centrica Business Systems could probably develop several standard applications with Hoghview’s technology, which would be to the benefit of both companies.
But, I believe that as Centrica Business Systems are supporting large number of systems globally, that they are in a good place to help develop and possibly run Highview Power’s support network.
Conclusion
I can see Centrica Business Systems and Highview Power having a long and profitable relationship.
Fifth Hydro Project Proposed At Loch Ness
The title of this post. is the same as that of this article on the BBC.
This is the sub-heading.
The local community is to be asked for its views next week on plans for a new hydro-electric scheme at Loch Ness.
These three paragraphs introduce the new scheme.
Glen Earrach Energy’s, external (GEE) pumped storage hydro project is the fifth hydro scheme proposed for the Loch Ness area.
The company said its project on Balmacaan Estate would create clean energy while protecting the environment, and create 600 on-site jobs.
But concerns have been raised about the number of planned schemes, with Ness District Salmon Fishery Board worried about the effect on wild fish.
The project has a web site, which has a section entitled About The Project, where this is said.
Glen Earrach Energy, which means “Valley of Spring” in Gaelic, stands at the forefront of energy innovation. The Pumped Storage Hydro (PSH) project, located at Balmacaan Estate, Scotland, is a critical component for achieving a net-zero grid by 2030.
The project prioritises environmental preservation and biodiversity enhancement while achieving outstanding efficiency in energy storage and generation.
This ensures a healthier and more sustainable balance between harnessing natural energy resources and the maintenance and reinforcement of the surrounding ecosystem.
Note.
- It doesn’t say, but it looks like Glen Earrach Energy aim to complete the project by 2030.
- Glen Earrach Energy also seem to be playing a strong environmental card.
But nothing is said about the size of the project.
This article on Business Insider, which is entitled £3 billion Loch Ness Hydro Project Plans Unveiled, does give some details.
- Potential Investment – More than £2 billion
- Output – 2 GW
- Storage Capacity – 30 GWh
- The project could create at least 600 on-site construction jobs in Scotland over a six-year period, plus many thousands more locally in the supply chain.
It is larger, than SSE’s flagship Coire Glas pumped storage hydroelectric power station, which is planned to be a 1.5 GW/30 GWh station, at the other end of the Great Glen.
I have some thoughts.
The Existing Hydro Schemes On Loch Ness
According to the BBC article, there are two existing hydro schemes on Loch Ness.
- Foyers is described on this web site and is a reasonably modern 305 MW/6.3 GWh pumped storage hydroelectric power station, that was built by SSE Renewables in the last fifty years.
- Glendoe is described on this web site and is a modern 106.5 MW conventional hydroelectric power station, that was built by SSE Renewables in the last twenty years.
Foyers and Glendoe may not be the biggest hydroelectric power stations, but they’re up there in size with most solar and onshore wind farms. Perhaps we should look for sites to develop 100 MW hydroelectric power stations?
The Proposed Hydro Schemes On Loch Ness
According to the BBC article, there are four proposed hydro schemes on Loch Ness.
- Coire Glas is described on this web site and will be a 1.5GW/30 GWh pumped storage hydroelectric power station, that is being developed by SSE Renewables.
- Fearna is described on this web site and will be a 1.8GW/37 GWh pumped storage hydroelectric power station, that is being developed by Gilkes Energy.
- Loch Kemp is described on this web site and will be a 600MW/9 GWh pumped storage hydroelectric power station, that is being developed by Statera.
- Loch Na Cathrach is described on this web site and will be a 450MW/2.8 GWh pumped storage hydroelectric power station, that is being developed by Statktaft.
In addition there is, there is the recently announced Glen Earrach.
- Glen Earrach is described on this web site and will be a 2GW/30 GWh pumped storage hydroelectric power station, that is being developed by Glen Earrach Energy.
Note.
- The total power of the seven pumped storage hydroelectric power stations is 4.76 GW.
- The total storage capacity is 85.1 GWh.
The storage capacity is enough to run all turbines flat out for nearly five hours.
Could Glendoe Be Updated To Pumped Storage?
The Wikipedia entry for the Glendoe Hydro Scheme mentions pumped storage several times.
In Glendoe Hydro Power Station, I estimate that a Glendoe pumped storage scheme could be perhaps 50 % bigger than the system at Foyers.
I feel that if more storage capacity is needed in the Highlands, then Glendoe could be converted to pumped storage.
Gresham House BESS Fund Energises 50MWh Asset
The title of this post, is the same as that of this article on Solar Power Portal.
These three paragraphs detail the project.
Gresham House Energy Storage Fund has energised a 50MW/50MWh battery energy storage system (BESS) in Lancashire.
Situated in Penwortham, south-west of the county capital Preston, the 1-hour duration BESS is set to be expanded to 2-hours in the summer, meaning its capacity would be 50MW/100MWh.
With the commencement of this new BESS, Gresham House Energy Storage Fund’s operational capacity has now reached 790MW/926MWh. The project is the fund’s 25th operational asset since IPO.
Note.
- The battery will be upgraded to a two-hour battery in the summer.
- The average battery would appear to be 32 MW/37 MWh.
- The average full-power duration for all Gresham House’s batteries appears to be around 70 minutes.
This Google Map shows the battery, which is located next to National Grid’s Penwortham substation.
Note.
- The battery is the two rows of green containers at the top of the map.
- The substation appears to be large.
Co-location like this, must surely bring design, construction and operational advantages.
This page on the National Grid web site is entitled Network And Infrastructure, where this is said.
We own the national electricity transmission system in England and Wales. The system consists of approximately 4,500 miles of overhead line, over 900 miles of underground cable and over 300 substations.
If every substation in the UK were to be fitted with a 32 MW/64 MWh two hour battery, these would have a total capacity of 9.6 GW/19.2 GWh.
Compare that with these operational batteries and pumped-storage systems in the UK.
- Cruachan – 1000 MW/7.1 GWh – Pumped Storage
- Dinorwig – 1800 MW/9.1 GWh – Pumped Storage
- Ffestiniog – 360 MW/1.44 GWh – Pumped Storage
- Minety -150 MW/266 MWh – BESS
- Pillswood – 98 MW/196 MWh – BESS
And these systems are under development
- Coire Glas – 1.5GW/30 GWh – Pumped Storage
- Loch Na Cathrach/Red John – 450 MW/2.8 GWh – Pumped Storage
- London Gateway – 320 MW/640 MWh – BESS
There are at least another four substantial pumped storage systems under development.
Conclusion
A twin-track approach of grid-batteries at sub-stations and a few larger grid batteries and pumped storage hydroelectric schemes should be able to provide enough storage.
Ørsted, Simply Blue, Subsea7 Submit Application For 100 MW Scottish Floating Wind Farm
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Ørsted, Simply Blue Group and Subsea7, through their joint venture partnership in Scotland, have submitted an offshore consent application for the proposed 100 MW Salamander floating offshore wind farm, one of the 13 projects selected in Scotland’s Innovation and Targeted Oil and Gas (INTOG) leasing round.
The article starts with a map that shows the location of the Salamander floating offshore wind farm and it shows how the sea is getting very crowded 35 kilometres off Peterhead.
This map shows the various ScotWind leases, around the North of Scotland.
The numbers are Scotwind’s lease number in their documents.
These are the Scotwind wind farms to the North-East of Scotland.
- 1 – BP Alternative Energy Investments – 859 km² – 2.9 GW – Fixed
- 2 – SSE Renewables – 859 km² – 2.6 GW – Floating
- 3 – Falck Renewables Wind – 280 km² – 1.2 GW – Floating
- 4 – Shell – 860 km² – 2.0 GW – Floating
- 5 – Vattenfall – 200 km² – 0.8 GW – Floating
- 6 – DEME – 187 km² – 1.0 GW – Fixed
- 9 – Ocean Winds – 429 km² – 1.0 GW – Fixed
- 10 – Falck Renewables Wind – 134 km² – 0.5 GW – Floating
- 11 – Scottish Power Renewables – 684 km² – 3.0 GW – Floating
- 12 – BayWa r.e. UK – 330 km² – 1.0 GW – Floating
Note.
- Salamander is located to the South of wind farms 10, 11 and 12 and to the North-West of wind farm 5.
- These windfarms total up to 16 GW.
- 4.9 GW are fixed foundation wind farms.
- 11.1 GW are floating wind farms.
These are my thoughts.
The Salamander Project
In the big scheme of things, the 100 MW Salamander wind farm, is rather a tiddler of a wind farm.
On the Salamander wind farm web site, a section gives the Project Goals.
- Our innovative pre-commercial stepping-stone concept will use novel floating foundations to (i) maximise Scottish content, (ii) enable the Scottish supply chain to gear up for the future floating offshore wind commercial opportunities in ScotWind and (iii) reduce the financial, environmental and technology risks of floating offshore wind.
- The Salamander project will contribute to the Scottish Government and UK Government net-zero targets. The project can contribute to the Scottish government’s target of 11 GW of installed offshore wind by 2030, as well as the UK government’s target of 5 GW of operational floating offshore wind by the same date.
- We are dedicated to developing a sustainable and transformative project, working with the oceans, and enabling communities to benefit from Project Salamander. Therefore, we commit to having a continuous and strong stakeholder and community engagement.
It appears to me, that the Salamander project will be a pathfinder for the 11.1 GW of floating wind farms to be built off Peterhead.
Bringing The Electricity South
National Grid are building four interconnectors between Eastern Scotland and Eastern England.
- Eastern Green Link 1 – Torness and Hawthorn Pit
- Eastern Green Link 2 – Peterhead and Drax
- Eastern Green Link 3 – Westfield and Lincolnshire
- Eastern Green Link 4 – Peterhead and Lincolnshire
Note.
- All interconnectors are 2 GW.
- All interconnectors are offshore for a long part of their route.
- It also appears that National Grid are burying much of the onshore sections.
But the 4 GW of interconnectors will only be able to bring a quarter of the offshore electricity generated in the Peterhead area to the South.
What Will Happen To The Excess Electricity?
Consider.
- There could be 16 GW of planned offshore wind power around Peterhead and North-East Scotland.
- There is only 4 GW of interconnector capacity between Peterhead and Eastern England.
- There is another 6.8 GW of electricity around North-West Scotland.
- There is 2.8 GW of electricity being developed to the East of Shetland.
- The Crown Estate is thinking of increasing the size of some offshore wind farms.
It is likely, that other wind farms will be built in the seas around the North of Scotland.
It appears that the North of Scotland could have at least 20 GW of excess electricity.
Possible solutions would include.
- Developing energy intensive industries like metal refining.
- More interconnectors to Denmark, England, Ireland and Norway.
- Storage of the electricity in giant pumped storage hydroelectric power stations.
- Creation of green hydrogen for export.
Note.
- Aluminium refining has been developed in the North of Scotland before.
- More interconnectors are a possibility, especially as Scotland is developing cable manufacturing capacity.
- Some maps show extra interconnectors between West Scotland and Merseyside.
- At least 70 GWh of pumped storage hydroelectric power stations are being developed along the Great Glen.
- I suspect that the pumped storage hydroelectric power stations could be connected to the wind farms, by cables under the waters of Loch Ness.
But surely, production of green hydrogen for export would be a very good way to go.
- Extra electrolysers could be added as required.
- Because of the interconnectors down both East and West Coasts, electrolysers could be built in England, where there is a large need for hydrogen.
- Hydrogen would be exported initially by tanker ships.
- At some point in the future, it might be viable to build a hydrogen pipeline to connect to the growing European hydrogen network.
The giant pumped storage hydroelectric power stations and the hydrogen electrolysers would be sized to make sure, that no wind power is never wasted.
Conclusion
The 100 MW Salamander floating wind farm may only be small, but it will prove the technology, the manufacturing and the supply chains, so that Scotland can have a second energy boom from the North Sea.
But this boom will certainly last longer than a hundred years.
The Anonymous Widower 