The Anonymous Widower

The March Of The Batteries

One of my Google alerts picked up this story from the Solar Power Portal, which is entitled Gresham House To Acquire 480MW BESS, Completes Financing On 397MW Portfolio.

This is the sub-heading.

Gresham House Energy Storage Fund signed a Sale and Purchase agreement (SPA) for the conditional acquisition of a 480MW BESS project, while also completing funding on a 397MW portfolio that will begin construction.

I asked Google AI, “How Big Is Gresham Houuse’s Portfolio Of Batteries?” an received this answer.

Gresham House Energy Storage Fund (GRID) operates a portfolio exceeding 1GW of utility-scale battery capacity in the UK, with an active pipeline of future and recently financed projects.

Their operational capacity features:

Operational Capacity: Exceeds 1GW (approx. 1,072MW/1,701MWh) across dozens of sites.

Market Share: Owns roughly 17% to 20% of all utility-scale batteries in Great Britain.

Haven’t they done well!

When Will Highview Power Complete The Carrington Battery?

Highview Power is building a 50 MW/300 MWh liquid air battery at Carrington, near Manchester.

I asked Google AI,the title of this section and received this reply.

Highview Power’s Carrington liquid air energy storage facility in Greater Manchester is scheduled to be operational by late 2026.

The grid stabilization phase is set to begin early in the year, with full long-duration operations following shortly after.The £300 million project at the Trafford Low Carbon Energy Park is a pioneering commercial-scale “cryobattery” that liquefies and stores air to capture excess renewable energy.

Key details of the completed facility:

Capacity: 300 MWh of storage (delivering 50 MW for six hours)

Reach: Capable of supplying electricity to approximately 480,000 homes

Technology: Liquid Air Energy Storage (LAES)

When Will Highview Power Complete The Livingstone Battery?

Highview Power is building a300 MW/3.2 GWh liquid air battery at Livingstone near Glasgow.

I asked Google AI, the title of this section and received this reply.

Highview Power is not currently building a battery in Livingstone. They are developing a major \(2.5 \text{ GWh}\) liquid air energy storage (LAES) plant in Hunterston, Scotland, which is scheduled to come online by 2030.

According to the Highview Power web site, a 300 MW/3.2 GWh “cryobattery” is being built at the site.

How Much Offshore Wind Power Will Be Installed This Year?

In UK Offshore Wind In 2030 – Calculated May 2026, I said that 2635 MW would be commissioned this year.

Conclusion

We’re running hard, but will we keep ahead of the tsunami of offshore wind and solar panels we are installing.

In UK Offshore Wind In 2030 – Calculated May 2026, my latest calculations show that by 2036, we will have installed 61,337 MW of offshore wind alone.

How Many Of Their 300 MW/3.2 GWh Liquid Air Batteries Do Highview Power Think They Can Install?

I asked Google AI, the title of this section and received this reply.

Highview Power plans to install several of their 300 MW/3.2 GWh “Millennium Series” cryogenic plants. They are specifically developing two initial flagship sites in the UK, with the intention to scale up rapidly over the next decade to capture a significant share of national long-duration energy storage targets.

 

Highview Power is executing a multi-billion-pound programme to build out these multi-technology storage facilities, which combine liquid air energy storage and lithium-ion batteries.

The two primary 3.2 GWh projects advancing through the UK regulatory system include:

Hunterston, North Ayrshire (Scotland): Slated as the first of the Millennium Series, designed to provide up to 3.2 GWh of capacity (powering around 650,000 homes).It is advancing through the regulatory assessment and construction phases.

Killingholme, Lincolnshire (England): A second 3.2 GWh facility.

Both the Hunterston and Killingholme sites were deemed eligible for support under the UK government’s “cap and floor” super-battery scheme.

Two 300 MW/3.2 GWh “Millennium Series” cryogenic plants will do very nicely!

Engineering is the science of the possible, whereas politics is dreams of the impossible.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

May 27, 2026 Posted by | Artificial Intelligence, Energy, Energy Storage | , , , , , , , , , , , , , | Leave a comment

Mooir Vannin Offshore Wind Farm

This is a wind farm off the Isle of Man, that I missed as it is not on Wikipedia’s List of Offshore Wind Farms In The United Kingdom.

But it does have a web site, which has this handy map.

Note.

  1. The wind farm will have a capacity of 1.4 GW.
  2. Ørsted is building the web farm.
  3. It has planning permission.
  4. The operations base for the proposed Mooir Vannin Offshore Wind Farm will be located at Douglas Harbour on the Isle of Man.
  5. The Port is Owned By The Isle Of Man Government.
  6. Anticipated operational start date is the mid 2030s. I’ll assume 2035.
  7. According to the web site, connection will be to Douglas on the Isle of Man and Penwortham, Lancashire in the UK.
  8. Penwortham is part of Preston.
  9. Penwortham substation already has a 50 MW/50 MWh BESS and may get a bigger one.
  10. Current fossil-fuel power stations on the Isle of Man, include a number of diesel power stations and a 64 MW CCGT. They also have a 23 MW steam generator.

It looks like Mooir Vannin is large enough to give the island a carbon-free energy supply, backed up, by the UK National Grid at Penwortham.

I asked Google AI, “If The Isle of Man Was Going Into The Data Centre Business”, and received this reply.

The Isle of Man is actively positioning itself as a premier hub for data centres, tech firms, and AI companies. The government is utilizing its robust infrastructure, strong regulatory environment, and competitive tax policies to attract high-value data businesses to the island.

It also looks like they have a water system, that has a hydro-electric power-station.

Ørsted Is Danish

Ørsted is Danish and all of those countries to the North East of the UK have lots of islands.

So I asked Google AI, this question.”Does Denmark Have Any Islands With Power Stations?”, and received this comprehensive answer.

Yes, Denmark has several islands with power stations, ranging from natural islands utilizing large wind and biomass facilities to massive, pioneering “Energy Islands” built specifically as offshore power hubs.

Key Examples Include:

Bornholm (Baltic Sea): Designated as a major green “Energy Island” hub. It functions as a massive collection and distribution point for surrounding offshore wind farms, routing renewable energy to both the Danish grid and neighboring countries like Germany.

SamsØ (Kattegat strait): Known globally as a renewable energy island.

It is entirely powered by local onshore and offshore wind turbines and uses a mix of solar and battery storage systems to manage its energy needs, including marina charging.

North Sea Energy Island (VindØ): This is a colossal artificial island project (located roughly 80–100 km off the coast of Jutland) designed to act as an offshore power plant.

It acts as a hub to harvest and convert wind energy from hundreds of surrounding turbines.

Are Ørsted and Highview Power Still Talking?

In Highview Power, Ørsted Find Value In Integrating Offshore Wind With Liquid Air Energy Storage, it appeared that they still were.

As it appears that Highview Power’s Liquid Air Energy Storage can be sized to the application, I wouldn’t be surprised to see one of their batteries on an island powered by Danish wind turbines.

In Is Sumitomo Heavy Industries Highview Power Energy Storage System On Line At Hiroshima?, I describe how a Highview Power application, that uses cold, solar panels and a small Highview Power battery to increase the efficiency of a CNG Terminal.

 

How Many Of The UK’s Power Stations Are On Islands?

I asked Google AI this question and I received this answer.

There are three major, conventional thermal power stations on the UK’s offshore islands (two in Scotland and one in the Channel Islands), alongside several small-scale community-owned renewable plants that operate entirely off-grid.

The main island-based power stations include:

Lerwick Power Station (Shetland): A 66-73 MW diesel-fired plant commissioned in 1953. It provides a baseline of electricity for the Shetland mainland.

Sullom Voe Terminal Power Station (Shetland): An independent gas-fired station (roughly 92 MW capacity).

Its primary purpose is to serve the Sullom Voe gas terminal, but it also supplies the Shetland grid.

Queen’s Road Power Station (Jersey): A multi-engine facility in the Channel Islands that uses a mix of gas turbines and diesel generators to maintain island capacity.

(Note: Major UK islands, like the Isle of Wight, Anglesey, and the Isle of Skye, are physically connected to the mainland electricity grid via subsea cables, so they do not house their own large-scale, standalone power stations).

Beyond these conventional thermal stations, several smaller Scottish islands run on micro-grid, renewable-only power stations.

For instance:The Isle of Eigg: Powered entirely by a micro-grid of hydro, wind, and solar, completely disconnected from the UK grid.

It looks to me, that the Isle of Man, Shetland and Jersey, are the three most likely islands to get upgraded power systems and it also looks like Ørsted have the experience to make a good fist of it.

Conclusion

I have asked the question, I asked for the UK for a range of countries and I have received some interesting answers from Google AI. But the general trend seems to be to use appropriately-size medium-size and upwards, zero-carbon power stations with microgrids as on the Island of Eigg in the UK.

But I do believe that applying the technology that Ørsted, Highview Power and others are rolling out, that we can give the remote islands and places of Buckminster Fuller’s Spaceship Earth, the zero carbon power they need.

 

 

 

 

 

 

 

 

 

 

 

May 25, 2026 Posted by | Artificial Intelligence, Energy, Energy Storage, Environment | , , , , , , , , , , , , , , , | 1 Comment

Centrica Buys Severn Gas Power Station In South Wales

The title of this post, is the same as that of this article on The Times.

This is the sub-heading.

The owner of British Gas says the plant, acquired from the troubled Calon Energy for £370 million, will help secure supplies during the green transition

These three introductory paragraphs add more details to the story.

The owner of British Gas has acquired the troubled Severn gas power station in south Wales for £370 million after issuing a less than positive future profit guidance.

The combined-cycle gas turbine plant was owned by Calon Energy, which had gone into administration shortly after the start of the pandemic in 2020 when the power station was, for a while, mothballed.

Centrica said it acquired the plant to shore up its energy generation resources and secure electricity supplies during the UK’s green transition.

I think there a lot more to this story, than initially meets the eye.

The Location

The Google Map shows the location of the Severn Power station on the River Usk, to the South of Newport in South Wales.

Note.

  1. Severn power station is indicated by the red arrow in the South-West of the map.
  2. The River Usk enters the sea to the West of the site.
  3. The RSPB Newport Wetlandsare South of the site.
  4. The long rectangle in the middle of the map is the former Llanwern steelworks, which is now a CAF train factory.
  5. Newport is also a major station on the main line between London Paddington and Cardiff.

This second Google Map shows the power station site at a larger scale.

I wouldn’t be surprised, that Centrica could fit other equipment on and around the power station site.

  • Centrica and/or National Grid might want to put an interconnector across the Severn Estuary.
  • There might be a need to connect to wind farms in the Severn Estuary.
  • Centrica are building a bunkering facility for ships running on low carbon fuels at Grain LNG Terminal. Will they build one here?
  • Centrica could build a HiiROC electrolyser to create hydrogen for difficult to decarbonise industries and bunkering ships.

The site has a lot of potential.

May 8, 2026 Posted by | Energy, Energy Storage, Environment, Hydrogen | , , , , , , , , , , , , , , , | 1 Comment

Gas-Fired Power Still Looks A Safe Bet For Centrica In The Renewables Era

I feel rather surprisingly, the title of this post, is the same as this article on the Guardian.

You’d think, that they would be critical of Centrica for keeping the gas power stations going.

But this is the sub-heading.

There will still be a need to have gas in the wings to keep the lights on, so the financials stack up on Severn plant purchase.

So why should Centrica buy a 832 MW closed cycle gas fired power station?

These posts describe, what Centrica have done at Brigg with another closed cycle gas fired power station.

Will Centrica be taking closed cycle gas fired power stations and making them more efficient to provide the back up to wind farms, when wind is having an off day?

I wouldn’t be surprised, if Centrica put a big battery on the two sites, as after all they are a godparent to Highview Power.

Are there any more closed cycle gas fired power stations, that they can acquire?

I asked, Google AI,”How many closed cycle gas fired power stations are there in the uk?” and received this answer.

As of early 2026, there are approximately 35 active combined cycle gas turbine (CCGT) power stations—often referred to as closed-cycle—in the UK.

These plants provide the bulk of the UK’s gas-fired capacity, totaling roughly 30-35 GW along with smaller, single-cycle (OCGT) plants which are used for backup.

Total Capacity: The total capacity of all gas-fired generation (CCGT and others) is approximately 35.7 GW.

Role in Power Mix: CCGTs are highly efficient and provide baseload power, while OCGT plants (about 14+ sites) are typically used for peak demand.

Key Locations: Major plants include Pembroke (RWE), Staythorpe (RWE), Didcot B (RWE), and Connah’s Quay (Uniper).

These plants remain the largest single source of electricity generation on the UK grid, though they are increasingly being paired with carbon capture proposals.

I think, that Engineer Baldrick is now working for Centrica and he has a cunning plan to use efficient CCGT power stations to back up the wind.

Consider.

  • Severn power station is an 832 MW combined cycle power plant running on natural gas, which is located near Newport in South Wales.
  • 4.5 GW of offshore wind is to be built near Port Talbot.
  • Will some hydrogen generated by HiiROC be used to part-fire Severn power station and reduce its carbon footprint.
  • South Wales can easily find space for a couple of Highview 300 MW/3.2 GWh CRYOBatteries.
  • It would be useful to have a good-sized hydrogen store in South Wales.

That mix would surely provide enough reliable power for green steelmaking and a few data centres.

 

 

 

May 8, 2026 Posted by | Energy Storage, Hydrogen, Energy, Artificial Intelligence | , , , , , , , , , , , , | Leave a comment

Oman Set For Next Frontier In Energy Storage

The title of this post is the same as that of this article on the Times of Oman.

This first paragraph introduces the story.

Oman’s solar story is already being written. Manah, Ibri II, and the next wave of solar IPPs moving through procurement have placed the Sultanate firmly among the region’s renewable leaders. The next chapter, the one every solar-rich nation is racing to author, is about the long-duration energy storage technology that powers the grid after sunset. Lithium-ion batteries handle the first few hours effectively. What comes after is the harder problem, and it is increasingly being solved by a technology called Liquid Air Energy Storage, or LAES: a technology that aligns naturally with Oman’s industrial base.

The article then describes how the technology to handle LAES technology aligns with all their expertise in handling liquified natural gas.

This paragraph outlines Oman’s expertise in cryogenic engineering.

Oman’s natural advantage in this race deserves far more attention than it has received. Cryogenic engineering, the discipline of holding substances at extraordinarily low temperatures without losing them, is the most demanding part of any LAES plant. It is also the foundation of the LNG export business that has run out of Qalhat for a quarter of a century. The workforce that liquefies natural gas at minus 162 degrees Celsius is the same workforce that can liquefy air. The insulation expertise, the compressor specifications, and the maintenance discipline are all already here, refined over decades and built locally. Few nations possess this depth of capability as a domestic resource. Oman does.

If Oman have called this one right, then any nation with plentiful renewable resources, of solar, hydro, offshore wind or geothermal, should be looking at Liquid Air Energy Storage.

This is not the first time, that Liquid Air Energy Storage has been paired with LNG.

Highview Power are the UK pioneers of Liquid Air Energy Storage and on the Projects page of their web site, there is this section on Japan.

Our investment partner Sumitomo Heavy Industries (SHI), together with Hiroshima Gas, is developing a grid‑scale LAES demonstration plant in Hatsukaichi, Hiroshima. The 5 MW, four‑hour facility will use waste cold from an adjacent LNG terminal to enhance efficiency and sustainability, showcasing the flexibility of Highview’s modular LAES technology. The plant is scheduled to be operational in 2025.

In Is Sumitomo Heavy Industries Highview Power Energy Storage System On Line At Hiroshima?, I describe how the Hiroshima plant held a completion ceremony on the 9th December, 2025.

Liquid Air Energy Storage and LNG may seem unlikely bedfellows, but when engineers share a few beers, joint projects seem to emerge.

 

May 4, 2026 Posted by | Energy, Energy Storage | , , , , , , , , , | Leave a comment

SSE And Centrica Lifted As UK Moves Wind And Solar Farms To Fixed-Price Contracts

The title of this post, is the same as that of this article on Proactive Investor.

These two paragraphs add more detail.

Shares in SSE PLC (LSE:SSE), Centrica and several renewable energy investment companies rose after the UK government confirmed plans to move older wind and solar farms onto fixed-price contracts, or else be hit with higher windfall taxes.

SSE, which owns windfarms and hydroelectric power plants, saw its share climb 3.3% to 2,610p on Tuesday, while fellow FTSE 100-listed energy producer Centrica PLC (LSE:CNA), which owns British Gas, and FTSE 250-listed biomass burner Drax Group (LSE:DRX) were up 2.3% and 1.8%.

In World’s Largest Wind Farm Attracts Huge Backing From Insurance Giant, I posted an article, about why insurance companies invest in renewables.

I suspect someone has come up with an idea to make wind farms more attractive for long term investors.

The new mechanism are called Wholsale Contracts for Different and have this aim.

The move is aimed at breaking the link between electricity prices and gas in the UK, as wholesale power prices are currently set based on the gas price, despite renewables generating a growing share of power.

The proposed wholesale CfDs would target legacy assets

This can only be good for the UK, as we have so many long term renewables.

I also wonder, whether they will make Highview Power’s liquid air batteries a worthwhile investment?

April 21, 2026 Posted by | Energy, Energy Storage, Finance & Investment | , , , , , , , | Leave a comment

Mining Firms Turn To Renewables And Battery Storage In Bid To Ditch Diesel

The title of this post, is the same as that of this article from Reuters.

These four bullet points act as sub-headings.

  • Mining operations depend on diesel generators, far from electricity grids
  • Fortescue installs 250MWh BYD battery in West Australia to store energy from solar power
  • RheEnergise’s Devon plant supplying pumped hydro power to a kaolin mine
  • Sandvik offering miners a “battery-as-a-service” model to cut energy costs

These paragraphs introduce the article.

In Western Australia’s Pilbara region, a new feature is being added to an ancient landscape: rows of containerised batteries. Iron ore mining giant Fortescue took delivery of its first major battery energy storage system (BESS) from Chinese manufacturer BYD in December 2025. The 48 containers in this batch have a capacity of 250 megawatt hours (MWh). By 2030, the company plans to have up to 5 gigawatt hours (GWh) in place, the largest in Australia.

Fortescue says its plans for BESS may be vast in ambition, yet simple in execution.

“It’s literally dropping shipping containers on the ground and plugging them in,” says Dino Otranto, the company’s CEO ​for metals and operations. “There’s not much more complexity than that. You don’t have to build a billion-dollar power station, with all the complexity.”

Like the iron ore-rich Pilbara, major deposits of the world’s most important mineral resources lie in remote regions, far from national electricity ‌grids. That means mining companies typically rely on highly polluting and carbon-intensive diesel generators to power their operations.

It certainly seems, that Fortescue, who are one of the world’s largest mining groups,  are convinced of the value of batteries.

But another mining giant is involved in developing batteries. In UK Infrastructure Bank, Centrica & Partners Invest £300M in Highview Power Clean Energy Storage Programme To Boost UK’s Energy Security, this is said.

The £300 million funding round was led by the UK Infrastructure Bank (UKIB) and the British multinational energy and services company Centrica, alongside a syndicate of investors including Rio Tinto, Goldman Sachs, KIRKBI and Mosaic Capital.

Note.

  1. Highview Power’s CRYOBatteries use air in its liquid form as a storage medium. That surely must be very cool!
  2. Highview Power’s largest battery under development is 300 MW/3.2 GWh.
  3. KIRKBI is the private fund of the LEGO family.
  4. Goldman Sachs and Mosaic Capital must be good for a few quid.
  5. Rio Tinto is a UK-Listed mining company.

Out of curiosity, I asked Google AI, “Are Highview Power Developing Large Battery Applications For Mining?” and received this reply.

Yes, Highview Power is heavily investing in and developing large-scale, long-duration energy storage (LDES) solutions—which they refer to as “liquid air batteries” (CRYOBattery™)—that are designed to support heavy industries, including potential applications for mining and remote industrial operations.

While their primary focus has been on grid-scale, long-duration energy storage, these systems are suitable for industrial sites that require high-power,, high-capacity, and dependable, dispatchable energy that typical chemical batteries (like Lithium-ion) cannot provide over long durations.

Key Aspects of Highview Power’s Development:
Technology: Highview’s CRYOBattery™ is a Liquid Air Energy Storage (LAES) system that uses renewable energy to turn air into liquid at -196°C, storing it, and then expanding it back to gas to drive turbines.

Scale and Scope: They are developing projects with a capacity range of 50 megawatts to hundreds of megawatts, providing energy for 8 to 24 hours.

Projects and Investment:
UK Projects: A 300 MWh facility in Carrington, Manchester, is currently being built and is scheduled to be operational by 2026.

Major Expansion: A 2.5 GWh facility, which will be the world’s largest, is being developed at Hunterston, Scotland, with plans to build four such large-scale facilities in the UK.

Australia & Japan: They are developing base-load renewable power projects in Australia—specifically in Gladstone, Townsville, and the Northern Territory (Darwin-Katherine)—which often include mining and high-load industrial sites.

Mining Sector Connections: Highview Power’s funding rounds have been backed by major mining and resources companies, including Rio Tinto and Sumitomo.

Suitability for Remote Mining: The system can be located anywhere (unlike pumped hydro), is modular, and uses proven off-the-shelf components, making it ideal for the high energy requirements of the mining industry.

Highview’s technology is designed to store excess energy from wind and solar over long periods and release it on demand, which is critical for making renewable energy as flexible as traditional fossil fuels in industrial contexts.

I further asked Google AI, “Where Are Highview Power Going To Build Their First Four Big Batteries In the UK”, and received this reply.

Highview Power is developing a multi-billion pound, long-duration energy storage programme in the UK, utilizing Liquid Air Energy Storage (LAES) technology, which acts as a “big battery” by storing excess renewable energy as liquid air.

The company has identified over 16 potential sites, with the first four major projects planned for the following locations:

Carrington, Manchester (Trafford Energy Park): Currently under construction, this is the flagship 50MW/300MWh commercial-scale plant. It is scheduled to be operational by early 2026.

Hunterston, North Ayrshire (Scotland): This is the first of the “Millennium Series” plants, announced as the first in a new second phase of four projects. The 2.5 GWh facility is set to have its stability island operational by 2027.

Killingholme, Lincolnshire: Named as another site eligible for the UK government’s Cap and Floor support scheme, which aids in financing these large-scale projects.

Fourth Site (TBD): Highview Power’s second phase includes two in Scotland and two in England (likely including Killingholme), bringing 10 GWh of new capacity online by 2030.

Key Project Details
Total Investment: Backed by over £500m in funding from the UK Infrastructure Bank and Centrica.

Purpose: These plants store surplus wind and solar power for up to several weeks, addressing grid congestion and allowing for the closure of fossil fuel power stations.

Technology: Unlike lithium-ion, LAES uses liquified air, providing long-duration storage (6+ hours) with a 50+ year plant life.

The Hunterston project is expected to support 1,000 jobs during construction.

My project management experience would lead me to expect, that building each project would lead to a number of jobs being created, during the construction phase. That can’t be bad!

How is the Sumitomo/Highview Power CRYOBattery Performing At Hiroshima?

I will finish by talking about the Sumitomo/Highview Power CRYOBattery, which I talked about in Is Sumitomo Heavy Industries Highview Power Energy Storage System On Line At Hiroshima?

I asked Google AI, the question in the title  of this section and received this reply.

The Sumitomo Heavy Industries (SHI) and Highview Power Liquid Air Energy Storage (LAES) plant in Hiroshima is officially operational and performing as a key commercial demonstration of long-duration energy storage. The plant, located at the Hiroshima Gas Hatsukaichi LNG Terminal, began operations on December 1, 2025, with a inauguration ceremony held shortly after.

Here is a breakdown of its performance and status:
Operational Role: The plant is functioning as the world’s first commercial-scale LAES plant integrated with LNG cold energy, delivering zero-carbon energy and providing grid stability for Japan’s power system.

Capacity and Technology: It operates with a 5 MW output and 4-hour storage (approx. 4 MW charging), utilizing waste cold from the adjacent Hiroshima Gas LNG terminal to increase efficiency.

Performance Objectives: The facility is designed to prove that LAES technology is a viable, scalable, and emission-free solution for grid storage.
Development: The project was delivered through a collaboration between Sumitomo Heavy Industries, Sumitomo SHI FW (SFW), and Highview Power.

The plant is considered a significant step in Japan’s 2050 carbon neutrality strategy and confirms the potential of using cryogenic technology for long-duration energy storage.

Conclusion

Sumitomo, Highview Power and their partners now appear to be ready to go forth and multiply.

April 11, 2026 Posted by | Artificial Intelligence, Energy, Energy Storage | , , , , , , , , , , , , , , | Leave a comment

The Liquid Air Alternative To Fossil Fuels

The title of this post, is the same as that of this article on the BBC Future Web Site.

It is also one of the best articles, I’ve read on the economics of liquid-air energy storage.

This is the sub-heading.

An overlooked technology for nearly 50 years, the world’s largest liquid air energy storage facility is finally set to power up in 2026. It’s hoping to compete with grid-scale lithium batteries and hydro to store clean power, and reduce the need to fall back on fossil fuels.

These three introductory paragraphs add detail to the project.

As the world’s use of renewable electricity soars, surpassing coal for the first time, the need to store that energy when the Sun isn’t shining and the wind isn’t blowing is growing in step. While some turn to grid-scale lithium batteries and others to pumped hydro, a small but growing industry is convinced there’s a better solution still: batteries that rely on air.

Near the village of Carrington in north-west England, the foundations are being laid for the world’s largest commercial-scale liquid air energy storage facility, one of the first of its kind. The site will eventually become an array of industrial machinery and a number of large storage tanks, filled with air that has been compressed and cooled so much it has become a liquid, using renewable energy surplus to demand. The stored energy can be discharged later when demand exceeds supply.

If the project succeeds, more will follow. The site’s developers Highview Power are confident that liquid air energy storage will make it easier for countries to replace fossil fuels with clean renewable energy – though at present, the technology is expensive. But as the need for clean energy storage surges, they’re betting the balance will tip in favour of liquid air.

The BBC article, seems to have been written with input from Shaylin Cetegen, a chemical engineer at the Massachusetts Institute of Technology (MIT), who studies energy storage systems.

Topics discussed include.

  • The intermittency problem of renewables and how this gives problems for the stability of electricity grids.
  • The switchable nature of fossil-fuel power generation.
  • A big part of the solution is to store the surplus energy so that it can be released when it’s needed. Think of it like an electricity deposit account!
  • For decades, the main form of energy storage has been pumped hydro. In 2021, the world had 160 GW of pumped hydro capacity. The UK has a total of just 3 GW in Scotland and Wales! But more is on the way!
  • Recently, large-scale battery storage systems have risen to the challenge and installed capacity has risen from 55.7 GW in 2023 to 150 GW / 348 GWh in 2025.
  • The liquid air solution is then explained.
  • A grid-scale stop-gap, that is the 30 MW/300 MWh Manchester hybrid liquid-air battery, is then described.
  • In August 2026, the battery is set to begin operating.
  • An alternative way of stabilising the grid will be provided.
  • It will come online in two stages, says Highview Power CEO Richard Butland.
  • Then in 2027 the liquid air storage is expected to begin fully operating.

Highview Power will make money by trading electricity, as pumped storage operators do.

The penultimate section of the article looks at the bottom line and comes to these conclusions.

Instead, she says governments could support the technology. In her study, subsidising the initial capital costs to set up the systems “could be a viable approach to achieve economic viability in the short term”, she says.

Furthermore, faster uptake of renewables would increase energy price volatility, making energy storage more economically viable.

Cetegen makes a final point in favour of liquid air energy storage: it’s cheap. Energy storage technologies are often assessed using a metric called the “levelised cost of storage”, which estimates how much each unit of stored energy costs over the lifespan of the project. For liquid air, this can be as low as $45 (£34) per megawatt-hour – compared to $120 (£89) for pumped hydro and $175 (£130) for lithium-ion batteries.

“While none of these storage methods are likely economically viable right now without policy support, liquid air energy storage stands out as a particularly cost-effective option for large-scale storage,” Cotegen says.

Ultimately, Butland expects electricity grids to rely on a mix of storage technologies. Pumped hydro is extremely effective and works for decades, but it’s location-dependent because it needs a water supply. Meanwhile, batteries are highly efficient and can be placed anywhere, but need to be replaced after about 10 years. Liquid air has the advantage that it can store energy for longer than batteries, with minimal losses.

As any country enters the green transition, its electricity grid needs to be remodelled to cope. “We’re rebuilding all grids globally, based on new generation,” says Butland. And that could well mean a lot of liquid air energy storage.

 

March 21, 2026 Posted by | Energy, Energy Storage | , , , , , , , , , , , | 2 Comments

NextEnergy Solar Fund To Shift To Energy Storage And Divest Solar in Strategic Overhaul

The title of this post is the same as that of this article on the Solar Power Portal.

This is the sub-heading.

As part of the reset, NextEnergy said it will increase its energy storage exposure up to 30% of its gross asset value, a significant increase on its current rate of 10%.

These two paragraphs give more of their reasoning.

NextEnergy Solar Fund has completed a “strategic reset” of its investment strategy which will see it focus on energy storage assets and increase project sales.

As part of the reset, NextEnergy said it will increase its energy storage exposure up to 30% of its gross asset value, a significant increase on its current rate of 10%. The company said the shift would “enhance the Company’s existing stable revenues generated by its operational solar assets and support future revenues”.

In Is Sumitomo Heavy Industries Highview Power Energy Storage System On Line At Hiroshima?, I describe a power supply system developed by Sumitomo Heavy Industries to supply a stable 5 MW to a LNG Terminal, using these components.

  • A Cold Source
  • Solar Panels
  • A 5 MW/20 MWh Highview Power liquid-air CRYObattery.

Do Sumitomo Heavy Industries believe that a combination of energy and/or battery sources working together gives the quality of stable power, that is needed by today’s modern factories, facilities and buildings?

As a Graduate Control Engineer, I very much believe stable power supplies are a good thing and Sumitomo Heavy Industries obviously feel that Highview Power’s liquid air CRYObatteries are a good way to provide them.

The adding of a battery into a solar-powered renewable power supply, would surely, increase the amount of batteries that NextEnergy were financing.

 

 

March 12, 2026 Posted by | Energy, Energy Storage, Finance & Investment | , , , , , , , | Leave a comment

How Much Electricity Do You Need To Charge A Garage Full Of Electric Buses?

Consider.

I asked Google AI the question in the title of this post and received this comprehensive answer.

Charging a full garage of electric buses requires massive amounts of electricity, with typical, non-optimized charging for a 100-bus depot capable of drawing nearly 10 megawatts (MW) of power. To put this into perspective, a 100-bus depot might require roughly 150 Megawatt-hours (MWh) of energy to recharge over an eight-hour night.

Key Factors and Energy Requirements

Energy Consumption per Bus: A typical electric bus has a battery capacity between 300-500 kWh. Energy consumption averages around 1.11 to 1.35 kWh/km, with higher consumption in winter or with heavy A/C use.

Total Depot Power: For a 100-bus depot, power requirements can reach 10 MW, equivalent to the power output of a small hydroelectric dam.

Optimal Charging: Using smart charging, a 100-bus depot can reduce its peak demand to around 4 MW.

Daily Usage: A single, large electric bus can consume up to 500 kWh per day, with daily demand ranging from 189 to 231 kWh for typical operations.

Infrastructure and Grid Considerations

Charging Infrastructure: Depots often use 40 kW to 250 kW chargers, with 100 kW common for overnight charging.

Grid Capacity: A 34-bus depot might require a new 1000kVA transformer to handle the load.

Voltage: 11,000 volts may be required to power new substations, which are then stepped down to 400 volts for charging.

Operational Factors Affecting Energy Need

Heating and Cooling: Cold weather can increase energy consumption by up to 45% (due to electric heating).

Driving Style: Inefficient driving can increase energy consumption by 0.24 kWh/km above average.

Regenerative Braking: This can recover 37–40% of energy for 40-60 ft buses.

Cost Implications

Energy Bills: A 100-bus depot can incur monthly energy bills between $112,000 and $515,000 without optimization.

Cost Savings: Electric buses are generally cheaper to fuel, costing ~£0.21/mile compared to £0.49/mile for diesel.

Could A System Based On The Sumitomo/Highview Power System At Hiroshima Charge Electric Buses?

The optimal charging figure for a 100-bus garage would appear to be in the region of 4-5 MW.

In Is Sumitomo Heavy Industries Highview Power Energy Storage System On line At Hiroshima?, I state, that it looks like Highview Power’s CRYOBatteryat the heart of the system has a capacity of 5 MW/20 MWh.

I also state in the post, that the Hiroshima facility is designed to support grid stability and enhance renewable energy integration.

Does this all mean that if you can install enough solar panels on the roof of the garage or perhaps a wind turbine nearby, that you can have buses substantially powered by the sun and wind.

Chicago would just love wind-powered buses!

 

March 3, 2026 Posted by | Artificial Intelligence, Energy, Energy Storage, Transport/Travel | , , , , , , , , | 1 Comment