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.
ILI Group To Develop 1.5GW Pumped Storage Hydro Project
The title of this post, is the same as that of this article on the Solar Power Portal.
This is the sub-heading.
The pumped hydro facility will be located at Loch Awe, which is also home to Kilchurn Castle.
These paragraphs outline the story.
Clean energy developer ILI Group has begun the initial planning phase for a new pumped storage hydro project in Scotland.
The Balliemeanoch project at Loch Awe, Dalmally in Argyll and Bute will be able to supply 1.5GW of power for up to 30 hours. It is the third and largest of ILI’s pumped storage hydro projects, with the other two being Red John at Loch Ness and Corrievarkie at Loch Ericht.
The Balliemeanoch project will create a new ‘head pond’ in the hills above Loch Awe capable of holding 58 million cubic meters of water when full.
Note.
- At 1.5 GW/45 GWh, it is a large scheme and probably the largest in the UK.
- This is the third massive pumped storage hydro scheme for the Highlands of Scotland after SSE’s 1.5 GW/30 GWh Coire Glas and 152 MW/25 GWh Loch Sloy schemes.
- I describe the scheme in more detail in ILI Group To Develop 1.5GW Pumped Storage Hydro Project.
The article also has this paragraph.
It follows a KPMG report finding that a cap and floor mechanism would be the most beneficial solution for supporting long duration energy storage, reducing risks for investors while at the same time encouraging operators of new storage facilities to respond to system needs, helping National Grid ESO to maintain security of supply.
A decision on funding would be helpful to all the energy storage industry.
RWE To Start Building Battery Storage That Will Support Dutch Offshore Wind Farm
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
RWE has finalised its investment decision for a battery storage project in the Netherlands that will optimise the OranjeWind offshore wind farm’s integration into the Dutch energy system. The company plans to invest approximately EUR 24 million into the project.
This paragraph outlines the system.
The system, which will have an installed power capacity of 35 MW and a storage capacity of 41 MWh, will consist of a total of 110 lithium-ion battery racks that will be installed at RWE’s biomass plant in Eemshaven and will be virtually coupled with RWE’s power plants in the Netherlands.
There is also an explanatory infographic.
Note.
I visited Eemshaven in The Train Station At The Northern End Of The Netherlands.
- The wind farm has a capacity of 760 MW.
- Solar panels will float between the wind turbines.
- Surplus energy will be turned into hydrogen.
The OranjeWind wind farm has a web site, with a video that explains RWE’s philosophy.
The web site has a section, which is entitled Innovations At OranjeWind, where this is said.
In order to realise system integration and accelerate the energy transition, RWE is working together with a number of innovators on new developments in offshore wind farms. The company is realising and testing these innovations in the OranjeWind wind farm.
These innovations include offshore floating solar, a subsea lithium-ion battery, LiDAR power forecasting system and a subsea hydro storage power plant off-site.
Three innovations are discussed in a bit more detail, with links to more information.
- Subsea pumped hydro storage power plant – Ocean Grazer – More…
- Floating solar – SolarDuck – More…
- Intelligent Subsea Energy Storage – Verlume – More…
Big companies should always support innovation.
Is Sizewell C Needed?
I am generally pro-nuclear, but I am not sure if building a large nuke at Sizewell is the right action.
Consider.
- East Anglia has 3114 MW of offshore wind in operation.
- East Anglia has 6772 MW of offshore wind under construction, with Contracts for Difference or proposed.
- Vattenfall are considering abandoning development of their large wind farms off the Norfolk coast, which are proposed to have a capacity of 3196 MW.
- If the two Vattenfall wind farms don’t get built, it is likely that East Anglia will have around 6700 MW of offshore wind capacity.
- Sizewell C has a proposed nameplate capacity of 3260 MW. Some might argue, that to back up East Anglia’s offshore wind power, it needs to be larger!
- Norfolk and Suffolk no large electricity users, so are Vattenfall finding they have a product no one wants to buy.
- National Grid is developing four interconnectors to bring power from Scotland to the Eastern side of England, which will back up wind power in the East with the massive Scottish pumped storage, that is being developed.
- National Grid and their Dutch equivalent; TenneT are developing LionLink to connect the UK and the Netherlands to clusters of wind farms between our countries in the North Sea.
- Kent and East Anglia have several gas and electric interconnectors to Europe.
- Sizewell is well-connected to England’s grid.
These are my thoughts.
Energy Storage At Sizewell
Consider.
- Sizewell is well connected to the grid.
- It has the sea on one side.
- It could easily be connected to the large offshore wind farms, thirty miles out to sea.
If large energy storage could be built on the Sizewell site or perhaps under the sea, then this energy could be recovered and used in times of low wind.
Perhaps the technology of the STORE Consortium, which I discussed in UK Cleantech Consortium Awarded Funding For Energy Storage Technology Integrated With Floating Wind, could be used.
In this system, energy is stored in 3D-printed concrete hemispheres under the sea.
A Small Nuclear Reactor Cluster At Sizewell
Rolls-Royce are proposing that their small modular reactors will have a capacity of 470 MW.
Perhaps a cluster of seven small modular reactors at Sizewell, with a building schedule matched to the need to back up wind farms would be better and easier to finance.
I also feel a cluster of SMRs would have less risk and would be less likely to be delayed.
Where Is Generating Capacity Needed In The UK?
These areas already have large amounts of offshore wind in operation or proposed to be built before 2030.
- Celtic Sea
- North Wales
- Liverpool Bay
- Cumbria
- Scotland
- Scotland’s Offshore Islands
- North East England
- Humberside
- Lincolnshire
- East Anglia
- Thames Estuary
- Kent
- Sussex
Amongst the back up for these wind farms, there are only two modern nuclear stations; Sizewell B and the still-to-open Hinckley Point C.
If you look at a map of England and its power generation, there is a tremendous gap of capacity South of a line between Hinckley Point and Brighton, with little or no offshore wind and no nuclear.
There is probably a need for a large nuke near Weymouth.
Alternatively, perhaps several SMRs could be built underneath places like Salisbury Plain, Dartmoor and Exmoor!
Conclusion
We probably need the nuclear electricity from another Hinckley Point C-sized nuclear power station, so that we have adequate back-up for offshore wind.
But I am not sure that Sizewell is the right place to build it.
Malta Months Away from First Offshore Wind Tender, Identifies Six Floating Wind Areas
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Malta’s Ministry for the Environment, Energy and Enterprise has issued a draft National Policy for the Deployment of Offshore Renewable Energy for public consultation and has demarcated six floating offshore wind development areas located beyond the country’s 12-nautical-mile territorial waters and into its potential Exclusive Economic Zone (EEZ).
These are the first three paragraphs.
According to the Ministry, an international call for expressions of interest will be launched after the public consultation and the subsequent updating of the policy document, while a Strategic Environmental Assessment (SEA) will be prepared at the same time. The completion of a plan-level SEA will help further narrow down the preliminary areas and pinpoint the preferred locations for offshore renewable installations.
The six areas, as well as the rest of Malta’s potential EEZ, have been deemed most suitable for floating offshore wind and solar technologies and, according to the policy, the government has taken into account the possibility of having projects that combine the two technologies.
Looking at other offshore and marine renewables, the government has determined that, although not precluded, wave and tidal energy potential for Malta is considered very limited.
Note.
- Malta has no domestic resource of fossil fuels and no gas distribution network.
- Renewable energy on Malta has one of the lowest shares in the European Union.
- Malta has four operational electricity plants , with a total capacity of 537.8 MW.
- There is a 200 MW interconnector to Sicily.
- Malta has run a pilot project to assess floating solar power.
- The article embraces solar power, but dismisses wave and tidal power.
As the article says that Malta has 25 GW of offshore wind potential, I suspect that Malta will attract bids for the offshore wind licences around the island from some of the world’s largest, experienced and most well-respected offshore wind companies.
I do have a few thoughts.
A Large Generation Capacity
If Malta develops its full 25 GW of offshore wind potential, it will have more than enough electricity for its normal use.
This could mean.
- Malta could have all the electricity needed to run air-conditioners everywhere.
- Malta could export electricity to Sicily.
- Malta could become a hydrogen production centre.
- I also suspect, it could mean that Malta would need some energy storage.
I’ll look at the last two points, in the next two sections.
Hydrogen Production
In the last year or so I’ve written several posts about Offshore Hydrogen Production and Malta would it seems be an ideal location to develop this industry.
- Hydrogen could be used for transport on the island.
- Hydrogen could replace imports of gas.
- Hydrogen could be exported by tanker.
- Lhyfe and other companies are developing offshore hydrogen production.
I don’t think, there would be a problem recruiting engineers to develop the industry.
Energy Storage
Because of the large generation capacity around Malta, even with substantial hydrogen production, I am sure there will be a need for some energy storage around the island.
In UK Cleantech Consortium Awarded Funding For Energy Storage Technology Integrated With Floating Wind, I described a technique called Marine Pumped Hydro, which is being developed by the STORE Consortium.
- Energy is stored as pressurised water in 3D-printed hollow concrete spheres fitted with a hydraulic turbine and pump.
- The spheres sit on the sea-bed.
- This page on the STORE Consortium web site, describes the technology in detail.
- The technology is has all been used before, but not together.
I think it is excellent technology and the UK government has backed it with £150,000 of taxpayers’ money.
I also believe that Marine Pumped Hydro or something like it, could be the solution to the intermittency of wind farms.
It could be ideal to use in the seas around Malta.
Conclusion
Malta could be a renewable energy hub in the middle of the Mediterranean.
I think the Malta renewable energy developments, will show how various technologies can work together.
Sun-Powered Rooftops Could Generate Two Nukes Of Electricity…If England Follows Peterborough’s Lead
The title of this post, is the same as that of this press release from the Energy and Climate Intelligence Unit.
This is the sub-heading.
Household and commercial rooftop solar could save £450 million on bills.
These are the first two paragraphs.
If all English constituencies matched Peterborough, which has the highest proportion of homes with rooftop solar photovoltaic (PV) panels, the country’s solar capacity could be increased by around 7GW (gigawatts), new analysis from the Energy and Climate Intelligence Unit (ECIU) has found.
The nuclear power station Hinkley C will have a capacity of around 3.2GW, so the capacity rooftop solar on domestic properties could be more than the capacity of two new nuclear power stations.
It is an interesting thought.
I should say, that I have rooftop solar and it generates more electricity, than I ever thought it would.
I find this an interesting paragraph.
In addition, industry analysis shows that the capacity potential of solar on the roofs of commercial properties, such as warehouses, is 15GW. Combined, Peterborough levels of domestic solar and industry estimates for commercial solar could deliver an additional 22GW capacity, which is the equivalent of the capacity of almost 7 nuclear power stations. However, industry has reported that it is currently difficult to get commercial roof top developments connected to the grid, with waits up to a decade or more, and it can be costly.
22 GW is a lot of electricity, but I do feel, that with innovation that probably uses energy storage devices, the connection problems can be solved.
In Denny Bros Completes Solar Scheme At Bury St Edmunds Factory, I wrote about what one company in Suffolk has done with their roofs.
The technology already exists, so how long will it be before a company offers an electrolyser to convert excess electricity into hydrogen, which is used for transport, heating or an industrial process?
In Government Hydrogen Boost To Help Power Kimberly-Clark Towards 100% Green Energy Target, I talked about how Kimberly-Clark are partially switching from natural gas to green hydrogen.
Mercia Power Response And RheEnergise Target 100MW Of High-Density Hydro Energy Storage
The title of this post, is the same as that of this article on the Institution of Mechanical Engineers.
This is the sub-heading.
Two new partners will explore installation of high-density hydro energy storage with 100MW capacity by 2030.
These two paragraphs outline the deal.
Mercia Power Response, a provider of flexible power response services to the UK grid, signed an agreement with RheEnergise to explore the potential deployment of its new form of long-duration hydro energy storage, known as High-Density Hydro (HD Hydro).
The companies will work together to identify suitable sites for HD Hydro storage projects, using Mercia PR’s existing grid connections.
Note.
I am certainly pleased that this simple idea for energy storage appears to be on its way.
The Anonymous Widower 