Statkraft To Acquire Major Loch Ness Pumped Storage Hydro Project From Intelligent Land Investments Group
The title of this post, is the same as that of this press release from Statkraft.
This is the sub-heading.
The acquisition demonstrates Statkraft’s latest commitment to helping Scotland meet its renewable energy targets and strengthening UK energy security
These two paragraphed outline Red John and the deal.
Statkraft, Europe’s largest renewable power generator, has agreed to acquire the Red John Pumped Storage Hydro Scheme, from Intelligent Land Investments Group (ILI).
The 450MW scheme, first conceived in 2015, was granted consent by Scottish Government ministers in June 2021. The acquisition demonstrates Statkraft’s latest commitment to helping Scotland meet its renewable energy targets and strengthening UK energy security.
Note.
I wrote about Red John in Red John Pumped Storage Hydro Project.
I have also found a web site for the project, where this is said.
- The scheme has an output of 450 MW.
- The storage capacity is 2,800 MWh or 2.8 GWh.
- The scheme has planning consent.
- The project is budgeted to cost £550 million.
- The construction program indicates that the scheme will be completed by the end of 2025.
It looks to me, that the ILI Group have done all the hard work in getting the project shovel-ready and are passing the project to a bigger developer.
Energy Storage Outranks Solar In Company Investment Plans
The title of this post, is the same as that of this article on Reuters.
These two paragraphs outline the findings of a survey.
Rising renewable energy capacity and the deployment of electric vehicles will make energy storage the priority technology for energy transition investments in the coming years, according to the 2023 Reuters Events Energy Transition Insights report.
Batteries are spearheading growth in energy storage but a wider range of technology types will be deployed commercially in the coming years.
580 energy professionals were surveyed in Q1 2023.
I am not surprised at these findings, as storing surplus renewable energy must be beneficial.
Copenhagen Infrastructure Partners Takes FID On 1,000 MWh Battery Energy Storage Project
The title of this post, is the same as that of this press release from Copenhagen Infrastructure Partners.
This is the sub-heading.
The battery energy storage system Coalburn 1 will be one of the largest battery storage projects in Europe. Construction has commenced in November 2023 and the project will be 500 MW / 1,000 MWh once complete.
These two paragraphs outline the project.
Copenhagen Infrastructure Partners (CIP) through its Flagship Funds has taken final investment decision and commenced construction on a 500 MW / 1,000 MWh energy storage system in Coalburn, Scotland, which will be one of the largest of its kind in Europe.
The facility is the first project to be developed from the partnership between CIP and Alcemi to deploy 4 GW of energy storage assets across the UK. CIP aims to take final investment decision on two other projects next year with a combined capacity above 1 GW. The portfolio will provide vital support to the UK’s energy network, accelerating the integration of renewable energy and the transition to net zero by 2050.
Note.
- FID means final investment decision.
- 500 MW / 1,000 MWh could become a common size as it is two hours of power and easy for politicians to add up.
- CIP and Alcemi seem to be planning a total amount of energy storage, eight times bigger than Coalburn 1.
This battery could be the largest in the UK, when it is commissioned.
Who Are Copenhagen Infrastructure Partners (CIP)?
Their About CIP web page gives a lot of details.
Who Are Alcemi?
Their Who We Are web page gives a lot of details.
Environmental Considerations
The press release says this about environmental considerations.
The Coalburn 1 facility has been developed with extensive landscaping and ecological mitigation measures, including the maintenance of peat reserves, tree and wildflower planting, and new habitats, promoting biodiversity across the site.
I’ll agree with that, but add that I hope that they look after the hares. It will be interesting to see how big batteries and big bunnies co-exist. As co-exist they will!
Operation
The press release says this about operation.
The scheme will reduce the need for fossil fuel power generation during periods of peak demand leading to a decrease in CO2 emissions but also provide balancing services to help lower the costs for end consumers to manage the UK Power system.
As a Control Engineer, I suspect, it will act in a little-and-large mode with Scotland’s pumped storage.
Location
This page on the SP Energy Networks web site is entitled Coalburn Connection – South Lanarkshire.
There is this introductory paragraph.
SP Energy Networks own and maintain the electricity network in central and southern Scotland. As part of our infrastructure, Coalburn Grid Substation is a key installation in the transmission network situated to the south of Lesmahagow in South Lanarkshire.
Underneath is this map.
Note.
- The orange arrows are wind farms and there appear to be around a dozen of them.
- The blue arrow is Coalburn Grid Substation.
- Running through the area is the M74 between Glasgow and Carlisle.
- There are some remains of opencast coal-mines in the area, which have been restored and turned into wind farms.
- I have found the capacity of fourteen of the existing wind farms and it totals 946 MW, which is an average capacity for each wind farm of 67 MW.
- During my search for capacity, I found a couple of wind farms that were being upgraded with larger turbines.
- The SP Energy Networks page gives a date of Q3 2025 for connection of the Coalburn battery to the sub-station.
With the 500 MW/1000 MWh Coalburn 1 battery, I wouldn’t be surprised that this massive onshore wind farm complex has been designed to provide a guaranteed 1000 MW to the grid.
Vertical Farming Consortium Secures UK Government Funding To Advance Low-Emission Food Production Using Energy Storage
The title of this post, is the same as that of this article on Renewable Energy Magazine.
This is the sub-heading.
A consortium of four British companies, comprising UK Urban AgriTech (UKUAT), Intelligent Growth Solutions Ltd, RheEnergise and James Hutton Institute has received a grant from the UK Government to advance the development of low-carbon and low-cost food production by co-locating renewable energy with vertical farms.
These paragraphs outline the project.
The V-FAST consortium’s £488,000 project will explore how co-locating RheEnergise’s HD Hydro Energy Storage system with vertical farms can support a low-emission route to growing protein-rich crops in a controlled environment.
Last year, V-FAST – Vertical Farming And Storage Technologies – started investigating sites in Scotland’s Central Belt for the location of Scotland’s next generation of hectare+ scale vertical farms, powered by 100 percent renewables and using RheEnergise’s High-Density Hydro energy storage system. These farms would provide locally produced fresh foods (salads and fruits) to over 60 percent of the Scottish population and help meet the Scottish Government’s ambitions to produce more homegrown fruit and vegetables. These site investigations in Scotland continue.
Now, with the Innovate UK and BBSRC funding as part of the Novel Low Emission Food Production Systems competition, V-FAST will broaden the area for its site feasibility studies to across the UK, using GIS to identify and rate suitable locations for vertical farms that are co-located with renewables and High-Density Hydro energy storage. As part of the project, V-FAST will also undertake crop trials to establish optimal climate recipes in terms of their energy efficiency relative to produce metrics (e.g. protein per kWh or kg of CO2e).
It certainly sounds unusual to pair vertical farming with energy storage, but if it works, why knock it?
RheEnergise’s HD Hydro Energy Storage system is effectively pumped storage hydroelectricity using a fluid with a specific gravity of 2.5.
So instead of needing mountains to store energy, it can use medium-sized hills.
The Wikipedia entry for vertical farming, introduces the concept like this.
Vertical farming is the practice of growing crops in vertically stacked layers. It often incorporates controlled-environment agriculture, which aims to optimize plant growth, and soilless farming techniques such as hydroponics, aquaponics, and aeroponics. Some common choices of structures to house vertical farming systems include buildings, shipping containers, tunnels, and abandoned mine shafts.
As both HD Hydro Energy Storage system and vertical farming seem to need some form of vertical space, can colocation be advantageous in terms of cost?
Wikipedia also says that vertical farms also face large energy demands due to the use of supplementary light like LEDs.
So could V-FAST be an unusal marriage made in heaven of plant science and energy storage?
Highview Power, Ørsted Find Value In Integrating Offshore Wind With Liquid Air Energy Storage
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Highview Power and Ørsted have completed their joint investigation into how combining the technologies of Liquid Air Energy Storage (LAES) and offshore wind could unlock greater value for investors and consumers.
These three paragraphs outline the findings.
The results show that there is value in combining offshore wind with LAES to support reducing wind curtailment, increasing productivity, and helping the move to a more flexible, resilient zero-carbon grid, according to Higher Power.
The two companies have carried out analysis of technical performance, route to planning approval, and route to market with a regulatory and economic assessment.
As a result of this study, the companies believe a project can be developed and built aligned with the timeline of an offshore wind farm.
I feel very strongly, that putting the two technologies together is a good idea.
In the simplest cases, the storage could be built into the offshore sub-station.
Could LAES Be Used With Hornsea 4 Wind Farm?
The Wikipedia entry for the Hornsea Wind Farm says this about Hornsea 4.
In July 2023, British government officials gave the final approval for Hornsea Four, the fourth phase of the wind project. Hornsea Four is expected to generate 2.6GW, have 180 giant wind turbines, and has the capability to generate enough renewable energy to power 1 million homes in Britain.
The Wikipedia entry also says this about Hornsea 3.
Project 3 will be to the east of Projects 1 and 2, with an estimated maximum capacity of 2.4 GW over 696 square kilometres (269 sq mi). DONG Energy (which in November 2017 changed its name to Ørsted) began consultation on the project’s development in May 2016. Ørsted submitted a Development consent application in 2018 and consent was granted on 31 December 2020.[69] In early 2023, consent was also given to a battery storage power station at Swardeston. The project is expected to begin construction in 2022, and be completed by 2025.
If Ørsted are adding a battery to the 2.4 GW Hornsea 3 wind farm, I would feel, that Ørsted would think about a battery on the 2.6 GW Hornsea 4 wind farm.
The Energy Storage The UK Needs
This is the last paragraph of the article.
The UK will need up to 100 GWh of energy storage by 2050 according to the estimates from National Grid ESO’s Future Energy Systems Scenario.
SSE Renewables are planning two large pumped-storage hydroelectric power stations in Scotland.
- Coire Glas – 1.5 GW/30 GWh – Possible completion in 2031.
- Loch Sloy – 152.5 MW/25 GWh – See SSE Unveils Redevelopment Plans For Sloy Hydro-Electric Power Station.
A quick calculation, says we’d need seven pumped-storage hydroelectric power stations, which need a lot of space and a handy mountain.
I don’t think pumped-storage hydroelectric would be feasible.
Highview Power say this about their next projects on this page of their web site.
Highview Power’s next projects will be located in Scotland and the North East and each will be 200MW/2.5GWh capacity. 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.
Note.
- This is more like the size.
- Work is now underway at Carrington – a 50MW / 300MWh plant at Trafford Energy Park near Manchester.
- Highview’s technology uses liquid air to store energy and well-proven turbo-machinery.
They are a definite possibility, as only eighteen 200MW/2.5GWh systems would be needed.
Centrica’s Rough Storage Facility Pumps Gas Into Grid To Meet Increased Demand
The title of this post, is the same as that of this press release from Centrica.
This is the sub-heading.
The UK’s largest gas storage facility, Rough, has released stored gas into the grid to help the UK both manage higher heating demand during the current cold weather and keep prices down. This is the first time Rough has released gas this winter.
These three paragraphs describe how Centrica are using Rough and how they will use it in the future.
This year, Centrica has filled Rough with the equivalent of 18 LNG tankers. Rough provides enough energy to heat over 3 million homes, every day, all winter, keeping families warm and bills down.
Rough is the UK’s largest gas storage facility. It stopped storing gas in 2017 but was re-opened for gas storage in October 2022, and its capacity was doubled in the summer of 2023. The facility, which is 18 miles off the coast of East Yorkshire, now provides half of the UK’s total gas storage.
Centrica’s long-term ambition is to turn the Rough gas field into the largest long duration low carbon energy storage facility in the world, capable of storing both natural gas and hydrogen.
It does seem that Centrica have handled the Rough facility well.
But I do feel that Centrica are playing a bigger game.
- In Lhyfe And Centrica To Develop Offshore Renewable Green Hydrogen In The UK, I talk about how Centrica will produce hydrogen offshore.
- Would this hydrogen be conveniently produced near to Rough?
- Rough allow Centrica to buy gas at a low price and sell high. Rough could be a neat little profit centre?
- I suspect lessons learned at Rough, could be applied to other gas storage facilities?
- Centrica have taken a substantial stke in HiiROC, who are developing a new way of producing green hydrogen.
- In Centrica Partners With Hull-Based HiiRoc For Hydrogen Fuel Switch Trial At Humber Power Plant, I talk about how Centrica are helping HiiROC with full scale trials.
I certainly like what they’re doing.
RheEnergise And Colbún Sign MoU For Long Duration Energy Storage Projects In Chile
The title of this post is the same as that of this article on Water Power and Dam Construction.
These are the first two paragraphs.
Colbún, Chile’s third-largest power generation company and a prominent hydropower operator, has entered into a partnership with RheEnergise, a UK-based clean technology firm, to investigate the viability of deploying RheEnergise’s innovative long-duration hydro-energy storage solution, High-Density Hydro® (HD Hydro), in Chile. The agreement marks RheEnergise’s first entry into South America’s energy market.
Colbún and RheEnergise will jointly assess the feasibility of constructing a 10MW, 10-hour HD Hydro system in Chile. This initiative is seen as a valuable addition to Colbún’s diverse portfolio of hydro, wind, and solar projects, offering a novel technology to address the intermittency challenges associated with renewable energy sources. RheEnergise will conduct thorough investigations and technical studies to identify potential sites for its HD Hydro system, while Colbún will contribute local market expertise, guidance on planning and permitting, and insights into utility.
Note.
- Colbún has a Wikipedia entry and seems to be a fairly large company.
- The proposed system appears to be a 10 MW/100 MWh system, which could be ideal to back up a small wind or solar farm of about 50 MW capacity.
- Colbún seem to have the expertise to be a good partner for RheEnergise.
This last paragraph gives a snapshot of the Chilean market.
“Chile is a very attractive market for RheEnergise’s HD Hydro,” added Sophie Orme, Commercial Director at RheEnergise. “The Chilean Government is leading the way in Latin America, having dedicated US$2 billion for energy storage auctions from 2024, and set a renewables target of 70% by 2030 and carbon neutral by 2050. We are delighted to partner with Colbún, drawing on their first-hand experience of the market, in particular hydro and solar and to help them achieve their plan to add 4GW of renewable assets by 2030.”
I certainly wish both companies a successful future with this MoU.
National Grid To Accelerate Up To 20GW Of Grid Connections Across Its Transmission And Distribution Networks
The title of this post, is the same as that of this press release from National Grid.
These four bullet points, act as sub-headings.
- Connection dates of 10GW of battery projects accelerated at transmission level, and 10GW of capacity unlocked at distribution level, both part of the Electricity System Operator (ESO)’s connections five-point plan.
- Battery energy storage projects connecting to the transmission network to be offered new connection dates averaging four years earlier than their current agreement.
- The accelerated 20GW equates to the capacity of six Hinkley Point C nuclear power stations.
- Work is part of ongoing collaborative industry efforts, together with Ofgem and government, to speed up and reform connections.
This is the opening paragraph.
National Grid is accelerating the connection of up to 20GW of clean energy projects to its electricity transmission and distribution networks in England and Wales as part of ongoing collaborative work across industry.
As I write this, the UK is generating 38.5 GW of electricity, so another 20 GW will be a large increase in capacity.
I shall look at what National Grid are proposing in sections.
10 GW Of Battery Power
These two paragraphs, outline the plan for 10 GW of battery power.
On its transmission network, 19 battery energy storage projects worth around 10GW will be offered dates to plug in averaging four years earlier than their current agreement, based on a new approach which removes the need for non-essential engineering works prior to connecting storage.
The new policy is part of National Grid’s connections reform initiative targeting transmission capacity, spearheaded by the ESO – which owns the contractual relationship with connecting projects – and actioned jointly with National Grid Electricity Transmission (ET), the part of the business which designs and builds the transmission infrastructure needed in England and Wales to plug projects in.
It looks to me that someone has been doing some serious mathematical modelling of the UK’s electricity network.
Fifty years ago, I provided the differential equation solving software, that enabled the Water Resources Board to plan, where reservoirs and pipelines were to be built. I have no idea how successful it was, but we don’t seem to have any serious water supply problems, except when there is equipment failures or serious drought.
But modelling water and electrical networks is mathematically similar, with rainfall, pipelines and reservoirs in the water network and power generation, transmission lines and batteries and pumped storage hydroelectricity in the electricity network.
I’d be interesting to know what software was used to solve the mathematical model.
I certainly agree with the solution.
Two of our modern sources of renewable energy; solar and wind are not very predictable, but cost a lot of capital investment to build.
So it is very wrong not to do something positive with any excess electricity generated. And what better place to put it than in a battery, so it can be retrieved later.
The earlier, the batteries come on stream, the earlier, the batteries can save all the excess electricity.
So moving the plug in dates for battery storage four years earlier is a very positive thing to do.
A simple calculation shows that for 10 GW, we would need nineteen batteries of about 526 MW.
Ideally, like power stations, they would be spread around the country.
Could Pumped-Storage Hydroelectricity Be Used?
The largest battery in the UK is the Dinorwig pumped-storage hydroelectric power station, which is commonly known as Electric Mountain or Mynydd Gwefru if you’re Welsh.
- It opened in 1984, after a ten years of construction.
- It has a power output of 1.8 GW.
- The energy storage capacity of the station is around 9.1 GWh.
Roughly, every gigawatt of output is backed up by 5 GWh of storage.
If the proposed nineteen new batteries have the same power to storage ratio as Electric Mountain, then each battery will have a storage capacity of 2.63 GWh
SSE Renewables are planning two large pumped-storage hydroelectric power stations in Scotland.
- Coire Glas – 1.5 GW/30 GWh – Possible completion in 2031.
- Loch Sloy – 152.5 MW/25 GWh – See SSE Unveils Redevelopment Plans For Sloy Hydro-Electric Power Station.
A quick calculation, says we’d need seven pumped-storage hydroelectric power stations, which need a lot of space and a handy mountain.
I don’t think pumped-storage hydroelectric would be feasible.
Could Lithium-Ion Batteries Be Used?
My mathematical jottings have shown we need nineteen batteries with this specification.
- An output of about 526 MW.
- A storage capacity of around 2.63 GWh
This Wikipedia entry gives a list of the world’s largest battery power stations.
The current largest is Vistra Moss Landing battery in California, which has this specification.
- An output of 750 MW.
- A storage capacity of 3 GWh
Reading the Wikipedia entry for Vistra Moss Landing, it appears to have taken five years to construct.
I believe that nineteen lithium-ion batteries could handle National Grid’s need and they could be built in a reasonable time.
Could Any Other Batteries Be Used?
Rounding the battery size, I feel it would be better have twenty batteries with this specification.
- An output of 500 MW.
- A storage capacity of 2.5 GWh
Are there any companies that could produce a battery of that size?
Form Energy
Form Energy are well-backed with an MIT heritage, but their largest proposed battery is only 10 MW/1 GWh.
They could be a possibility, but I feel it’s only a small chance.
Highview Power
Highview Power say this about their next projects on this page of their web site.
Highview Power’s next projects will be located in Scotland and the North East and each will be 200MW/2.5GWh capacity. 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.
Note.
- This is more like the size.
- Work is now underway at Carrington – a 50MW / 300MWh plant at Trafford Energy Park near Manchester.
- Highview’s technology uses liquid air to store energy and well-proven turbo-machinery.
- Highview have a co-operation agreement with Ørsted
They are a definite possibility.
10 GW Of Extra Unlocked Capacity
These two paragraphs, outline the plan for 10 GW of extra unlocked capacity.
On its distribution network in the Midlands, South West of England and South Wales, the additional 10GW of unlocked capacity announced recently is set to accelerate the connection of scores of low carbon technology projects, bringing forward some ‘shovel ready’ schemes by up to five years.
National Grid has already been in contact with more than 200 projects interested in fast tracking their distribution connection dates in the first wave of the capacity release, with 16 expressing an interest in connecting in the next 12 months and another 180 looking to connect within two to five years.
This page from National Grid ESO, lists the actions that were taken to release the extra grid capacity.
Conclusion
This looks to be a very good plan from National Grid.
Plus Power Raises USD 1.8bn For Energy Storage In Texas, Arizona
The title of this post, is the same as that of this article on Renewables Now.
These two paragraphs outline the story.
Houston-based battery systems developer Plus Power LLC unveiled on Tuesday the completion of USD 1.8 billion (EUR 1.7bn) in new financing for the construction and operation of five standalone energy storage projects in Texas and Arizona.
The financing commitments, arranged in the form of construction and term financings, letters of credit, and tax equity investments, are dedicated to five projects with a combined capacity of 1,040 MW/2,760 MWh.
Note.
- This financing indicates how those banks and financial institutions with masses of money are prepared to put that money into energy storage.
- It is also good to see, that the journalist who wrote the story has given both the output of these batteries and their storage capacity.
- I can see many deals like this being done in the next few years.
But when will we see a financing deal like this for some of the other methods of storage that are being developed?
Scotland’s 25 GWh Energy Storage Arriving By Stealth
In SSE Unveils Redevelopment Plans For Sloy Hydro-Electric Power Station, I introduced SSE Renewable’s plan to convert the UK’s largest hydro-electric power station into a pumped storage hydroelectric station, that can store 25 GWh of electricity and generate 152.5 MW of electricity.
After a public consultation in July, which unfortunately, I was unable to get to, SSE have now published a comprehensive document, which details their plans.
These are some points from the document.
- There will be no increase in the generating capacity of 152.5 MW, which is about half the size of a gas-fired power station.
- SSE designed a similar scheme for Sloy in 2009.
- Pumped storage systems need a lot of water. The Loch Sloy scheme has Loch Lomond.
- The development of pumped storage at Sloy would only require construction work to be carried out in the grounds of the existing power station.
- No permanent new works would be required at Sloy Dam or outside of the existing station boundary.
- A new above ground structure would be required which would contain a main hall with vehicular access, laydown areas, an overhead travelling crane, electrical switchgear and control systems.
- A new underground pump hall would be required to house two pumps. This would link to the intake structure and would be approximately 20m below the existing ground level.
- The existing tailrace to Loch Lomond, will be used to bring water to the pumps.
- Construction could start in 2025, with completion in 2027.
This redevelopment is a much less complex construction project, than building the original power station in the 1950s.
It also looks like the construction will not cause much disruption in the local area.
Hence my view, that this storage is arriving by stealth and won’t be noticed by those passing the power station.
After reading this SSE document, I wonder how many similar 1950s hydroelectric power stations have been upgraded to pumped storage stations in the last few years.
Also, if their Sloy scheme is successful, will SSE be looking for other hydroelectric power stations to convert to pumped storage?
This article on renews.biz is entitled Vattenfall Plans To Build 730MW Of Swedish Hydro Power, where this is a paragraph.
Vattenfall is also conducting a pilot study to investigate reinstating the Juktan power station on the Storjuktan lake adjacent to the Umeälven river in Västerbotten, to a pumped storage plant with a capacity of up to 380MW.
Note.
- Juktan power station was built as a pumped storage station and converted to a standard one.
- It has a web page.
- As the paragraph says it could be converted back!
So other companies and countries are thinking the same way!
Strathclyde University’s Prediction
This page on the Strathclyde University web site, gives these figures in GWh for the possible amounts of pumped storage that can be added to existing schemes.
- Errochty – 16
- Glasgarnock – 23
- Luichart – 38
- Clunie – 40
- Fannich – 70
- Rannoch – 41
- Fasnakyle – 78
- Tummel – 38
- Ben Lawers – 12
- Nant – 48
- Invermoriston – 22
- Invergarry – 41
- Quoich – 27
- Sloy – 20
That is a total of 514 GWh.
These figures must give SSE food for thought.
These new schemes are also being planned.
- Balliemeanoch – 1.5GW/45 GWh
- Coire Glas – 1.5 GW/30 GWh
- Corrievarkie – 600 MW/14.5 GWh
- Fearna – 1.8 GW/37 GWh
- Loch Earba – 900 MW/33 GWh
- Loch Kemp – 300 MW/9 GWh
- Loch Na Cathrach/Red John – 450 MW/2.8 GWh
These could bring the potential pumped storage in Scotland to 685.3 GWh.
The Anonymous Widower 