Ambitious £3bn Pumped Hydro Project At Loch Ness Moves Forward
The title of this post is the same as that of this article on Sustainable Times.
These are the two introductory paragraphs.
A £3 billion pumped storage hydro (PSH) project near Scotland’s iconic Loch Ness is one step closer to becoming a reality. Glen Earrach Energy (GEE) confirmed on April 25th that it has officially submitted the planning application for its ambitious 2gw scheme.
If greenlit, this project would represent nearly three-quarters of the total PSH capacity planned for Loch Ness, contributing 34 GWh of the region’s 46 GWh storage goal. But it’s not just the storage that stands out. This development would also account for two-thirds of the generating capacity, all while using just half of the water previously considered. To put it into perspective, the project’s capacity would be on par with the combined output of around 800 onshore wind turbines scattered throughout the Highland Council area.
Note.
- The generating and pumping capacity for this ambitious scheme is given as 2 GW. Only three in China and one in the United States are larger.
- The storage capacity of 34 GWh will make it the largest in the UK, possibly the second largest in Europe to Ulla-Førre in Norway and one of the ten largest in the world.
- A projected 10% reduction in the UK grid’s carbon footprint is claimed.
- The cost of three billion is high, but compare that with the tens of billions quoted for the 3.26 GW Hinckley Point C.
The Glen Earrach scheme is not short on superlatives and the article in Sustainable Times is worth a thorough read.
Fifth Hydro Project Proposed At Loch Ness, is based on a BBC article of the same name.
These were my thoughts in the related post.
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/34 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 89.1 GWh.
- The storage capacity is enough to run all turbines flat out for nearly nineteen hours.
I estimate that if 2 GW/34 GWh of pumped storage will cost £3 billion, then 4.76 GW/89.1 GWh of pumped storage will cost around £7-8 billion.
Earba 1.8GW Pumped Storage Hydro Project Secures Approval
The title of this post, is the same as that of this article on the Solar Power Portal.
These three paragraphs introduce the article.
Gilkes Energy has been awarded planning consent for its Earba Pumped Storage Hydro (PSH) scheme.
The Earba PSH scheme is set to be the largest project of its kind in the UK, with an installed capacity of 1.8GW and a storage capacity of 40GWh, meaning that it can provide 22 hours of storage at full power. The planning application for the project was submitted to the Scottish government in early March 2024.
The project will be located at Loch Earba in the Scottish central Highlands. Gilkes Energy states that this location was chosen because the area has an ideal combination of geology and topography, which the firm states will make it one of the most economically viable PSH projects under development in the UK.
In Gilkes Reveals 900MW Scottish Pumped Storage Plan, I said that Loch Earba was a 900 MW/33 MWh PSH scheme, but now it appears a it is 1.8 GW/40 GWh scheme, which will probably put it in the largest twenty PSH schemes in the world.
It will be one of four PSH schemes under development in Scotland.
- Coire Glas – 1.3 GW/30 GWh
- Loch Earba – 1.8 GW/40 GWh
- Loch na Cathrach (formerly known as Red John) – 450 MW/2.8 GWh
- Loch Sloy – 160 MW/16 GWh
In addition.
- Cruachan is being extended to 1 GW/7 GWh.
- Highview Power are planning to build two 200 MW/2.5 GWh of their liquid air batteries in Scotland.
Everything totals up to 5.1 GW/100.8 GWh, which compares with a UK electricity production as I write this article of just under 29.5 GW.
I wouldn’t be surprised to see some high-energy industries moving to Scotland because of all this renewable and hopefully reliable power.
SSE And Gilkes Energy Submit Plans For Pumped Hydro Storage Project
The title of this post, is the same of this article in Solar Power Portal.
This is the sub-heading.
SSE Renewables and Gilkes energy have submitted a planning consent application to Scottish Ministers for a proposed Pumped Storage Hydro (PSH) project.
These two paragraphs add more detail.
The Fearna PSH project is proposed as a 50:50 joint venture project between SSE and Gilkes Energy, with Gilkes Energy leading the development under a developer services agreement with SSE Renewables. The scheme will have an installed capacity of 1.8GW and a stored capacity of up to 36GWh, providing 20 hours of storage. If approved, the project would be the largest pumped hydro scheme in the UK.
The proposed site is located around 25km from Invergarry in the Scottish Highlands and adjoins SSE Renewables’ existing Loch Quoich reservoir, which forms part of the Great Glen hydro scheme. The development will include the construction of tunnels and a new power station that will connect the existing Loch Quoich reservoir to an upper reservoir at Loch Fearna.
This Google Map shows the location of Invergarry and Loch Quoich.
Note.
Loch Quoich is the dolphin-shaped loch at the West of the image.
Invergarry is indicated by the red dot at the East of the image.
This second Google Map shows the location of Loch Fearna to the North-East of Loch Quoich.
These are my thoughts.
It Will Be A Large Scheme
With an installed capacity of 1.8GW and a stored capacity of up to 36GWh, providing 20 hours of storage, this is not a small scheme.
Wikipedia’s Description Of Loch Quoich
This is the first two paragraphs of the Wikipedia entry for Loch Quoich.
Loch Quoich (Scottish Gaelic: Loch Chuaich) is a loch and reservoir situated west of Loch Garry approximately 40 km northwest of Fort William, Lochaber, Scotland. The name means “loch of the quaich”. In 1896, it was listed as six miles long and three-quarters of a mile in width, belonging to Mrs. Ellice of Glenquoich, within the parish of Kilmonivaig.
Both lochs form part of the Glen Garry hydroelectricity project commissioned by the North of Scotland Hydro-Electric Board in the 1950s.
So is the Loch Fearna scheme, a massive repurposing of the existing Glen Garry hydroelectricity project?
I wrote about this before in Repurposing The Great Glen Hydro-Electric Scheme?
This map from the SSE Renewables web site shows the layout of the dams and power stations between Loch Quoich and Invergarry..
The sizes of the power stations in the scheme are as follows.
- Ceannacroc – 20 MW
- Livishie – 15 MW
- Glenmoriston- 37 MW
- Quoich – 18 MW
- Invergarry – 20 MW
- Mucomir – 1.7 MW
This gives a total power of 112.7 MW.
112.7 MW to 1.8 GW (1800 MW) is a colossal increase in power.
It should be noted that 1.8 GW is half the power of Hinckley Point C nuclear power station.
SSE And Gilkes Energy Announce Joint Plans To Progress Loch Fearna Pumped Storage Hydro Project
The title of this post, is the same as that of this press release from SSE Renewables.
These five paragraphs from the press release outline the scheme.
SSE has announced plans to progress a new pumped storage hydropower scheme at Loch Fearna in Scotland’s Great Glen, in a 50:50 development joint venture with a consortium led by Gilkes Energy.
The proposed co-development is located at the western end of Glengarry around 25km west of Invergarry and adjoins SSE Renewables’ existing Loch Quoich reservoir in the Great Glen hydro scheme.
SSE Renewables already operates the largest fleet of hydro-electric power and pumped storage hydro assets in Scotland. It is now progressing development plans for new pumped storage hydropower projects in the Highlands to complement its existing fleet and deliver the large-scale, long-duration electricity storage (LDES) needed as part of Britain’s future energy mix.
The Fearna Pumped Storage Hydro (PSH) project envisages the development of tunnels and a new power station connecting SSE Renewables’ existing reservoir at Loch Quoich with an upper reservoir at Loch Fearna.
Under the terms of the joint venture being announced today, Gilkes Energy will lead the project’s development under a development services agreement with SSE Renewables.
I wrote about the Great Glen hydro scheme in Repurposing The Great Glen Hydro-Electric Scheme, where I included this map, from the SSE Renewables web site shows the layout of the dams and power stations.
The sizes of the power stations in the scheme are as follows.
- Ceannacroc – 20 MW
- Livishie – 15 MW
- Glenmoriston- 37 MW
- Quoich – 18 MW
- Invergarry – 20 MW
- Mucomir – 1.7 MW
This gives a total power of 112.7 MW.
This five paragraph from the press release details the size of the scheme.
It is envisaged the proposed development would be up to 1.8GW in generating capacity and capable of producing around 37GWh of stored energy capacity. The project has already secured a grid connection offer totalling 1,795MW.
The 1.8 GW/37 GWh Fearna pumped hydro scheme will dwarf the Great Glen hydro scheme.
it is now seventy years since some of these hydro-electric systems were built in Scotland.
As an engineer, I wouldn’t be surprised to a see a fair amount of updating in the Highlands to upgrade Scotland’s hydro-electricity.
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.
Gilkes Reveals 900MW Scottish Pumped Storage Plan
The title of this post, is the same as that of this article on renews.biz.
This is the sub-heading.
Earba project would be ‘largest in the UK’ in terms of energy stored
And this is the introductory paragraph.
Gilkes Energy has unveiled scoping plans for its 900MW Earba Pumped Storage Hydro Project in Scotland.
These are a few more details.
- It will have a capacity of 33 GWh.
- Loch a’ Bhealaich Leamhain is proposed to be the upper reservoir.
- Lochan na h-Earba is proposed to be the lower reservoir.
- There will be a three kilometre tunnel between the reservoirs.
- The 900 MW power station will be on the shore of Loch Earba.
- Construction is expected to take between 3 and 4 years.
This Google Map shows the location of the site.
And this Google Map shows the site.
Note.
- Lochan na h-Earba, which will be the lower reservoir is clearly marked, in the North-West corner of the map.
- Loch a’ Bhealaich Leamhain, which will be the upper reservoir is in the South-East corner of the map.
- Much of Loch a’ Bhealaich Leamhain appears to be frozen, with only a small triangular area of water visible.
- There doesn’t seem to be too many roads.
- There is a detailed map on the Earba Storage web site.
This looks like it could be extreme construction, at it’s most extreme.
Conclusion
With a power output of 900 MW and a storage capacity of 33 GWh, this pumped storage hydroelectric power station will have the largest storage capacity of any energy storage in the UK.
The Anonymous Widower 