The Anonymous Widower

Investment in Grain LNG

The title of this post, is the same as that of this press release from Centrica.

This sub-heading outlines the deal.

Centrica plc (the “Company”, “Centrica”) is pleased to announce the acquisition of the Isle of Grain liquified natural gas terminal (“Grain LNG”) in partnership1 with Energy Capital Partners LLP (“ECP”) from National Grid group (“National Grid”) for an enterprise value of £1.5 billion. After taking into account approximately £1.1 billion of new non-recourse project finance debt, Centrica’s 50% share of the equity investment is approximately £200 million.

The press release lists these key points.

• Grain LNG delivers vital energy security for the UK, providing critical LNG import/export, regasification and rapid response gas storage capacity to balance the energy system.
• Aligned with Centrica’s strategy of investing in regulated and contracted assets supporting the energy transition, delivering predictable long-term, inflation-linked cash flows, with 100% of capacity contracted until 2029, >70% until 2038 and >50% until 2045.
• Opportunities for efficiencies to create additional near-term value, and future development options including a combined heat and power plant, bunkering, hydrogen and ammonia.
• Highly efficient funding structure, with Centrica’s equity investment of approximately £200 million alongside non-recourse project financing.
• Strong life of asset returns aligned with Centrica’s financial framework, with an expected unlevered IRR2 of around 9% and an equity IRR2 of around 14%+
  Underpins delivery of £1.6 billion end-2028 EBITDA target3 – Centrica’s share of EBITDA expected to be approximately £100 million per annum and cash distributions expected to be around £20 million on average per annum for 2026-2028, representing an attractive yield on Centrica’s equity investment
• Partnership with ECP (part of Bridgepoint Group plc), one of the largest private owners of natural gas generation and infrastructure assets in the U.S. with direct experience in supporting grid reliability.

This Google Map shows the various energy assets on the Isle of Grain.

 

Note.

1. It appears that works for the 1, 400 MW NeuConnect interconnector to Wilhelmshaven in Germany, are taking place in the North-East corner of the map.
2. Grain CHP powerstation is a 1,275MW CCGT power station, which is owned by German company; Uniper, that is in the South-East corner of the map, which can also supply up to 340MW of heat energy recovered from the steam condensation to run the vapourisers in the nearby liquefied natural gas terminal.
3. The Grain LNG terminal is at the Western side of the map.
4. In the Thames Estuary to the East of the Isle of Grain, I estimate that there are about 1,500 MW of wind turbines.

I find it interesting that two of the assets are German owned.

I have some thoughts.

It Is A Large Site With Space For Expansion

This Google Map shows the whole of the Isle of Grain.

Note.

1. The Grain LNG terminal is around the label Wallend.
2. The River Medway runs East-West at the bottom of the map.
3. Gas tankers deliver and take on gas at jetties on the North Bank of the Medway.

There could be space to expand the terminal, if the RSPB would allow it.

As an example, I asked Google AI, if peregrine falcons nest on chemical plants and got this reply.

Yes, peregrine falcons do nest on chemical plants. They have adapted to using various urban and industrial structures, including chemical plants, for nesting. This is particularly true in areas where natural cliff habitats are scarce.

Peregrine falcons are known for their adaptability, and their population has seen a resurgence in recent decades, partly due to their ability to utilize man-made structures. These structures often mimic their natural cliffside nesting

Cliffs do seem scarce on the Isle of Grain. I also asked Google AI, if peregrine falcons ate small rodents, as several chemical and other plants, where I’ve worked, had a rodent problem. One plant had a cat problem, as there had been so many rats. This was the reply.

Yes, peregrine falcons do eat small rodents, though they primarily consume birds. While their diet mainly consists of other birds like pigeons, doves, and waterfowl, they will also hunt and eat small mammals, including rodents such as mice, rats, and voles. They are opportunistic hunters and will take advantage of readily available prey, including insects, amphibians, and even fish.

I’m sure if Centrica wanted to expand, they’d employ the best experts.

Who Are ECP?

One of the key points of the press release is that this deal is a partnership with ECP (part of Bridgepoint Group plc), one of the largest private owners of natural gas generation and infrastructure assets in the U.S. with direct experience in supporting grid reliability.

The Wikipedia entry for ECP or Energy Capital Partners has this first section.

Energy Capital Partners Management, LP (ECP) is an American investment firm headquartered in Summit, New Jersey. It focuses on investments in the energy sector. The firm has additional offices in New York City, Houston, San Diego, Fort Lauderdale and Seoul.

In August 2024, ECP merged with Bridgepoint Group to form a private assets investment platform.

The Wikipedia entry for the Bridgepoint Group has this first paragraph.

Bridgepoint Group plc is a British private investment company listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.

The company had started as part of NatWest.

Are The Germans Going To Take Away Some Of Our Electricity?

Consider.

• Germany has a big need to replace Russian gas and indigenous coal, and to decarbonise.
• Neuconnect is a 1.4 GW interconnector between the Isle of Grain and Wilhelmshaven in Germany. It is scheduled to be completed in 2028.
• The Grain CHP powerstation is a 1,275MW CCGT power station, which is owned by German company; Uniper, could almost keep NeuConnect working at full power on its own.
• I said earlier, in the Thames Estuary to the East of the Isle of Grain, I estimate that there are about 1,500 MW of wind turbines. One of which is part German-owned.

The Germans are also building a large electrolyser at Wilhelshaven, which is described by Google AI like this.

The Wilhelmshaven Green Energy Hub will initially feature a 500MW electrolyzer, with plans to potentially expand to 1GW, according to Energy Monitor. The hub, a joint project between Tree Energy Solutions (TES) and EWE, aims to produce green hydrogen using renewable energy sources like offshore wind. The 500MW electrolyzer is scheduled to be operational by 2028.

I wouldn’t be surprised to see that the Wilhelmshaven electrolyser were to be powered by British-generated electricity flowing down NeuConnect.

Centrica Says Their Future Development Options Include A Combined Heat And Power Plant

This objective was set in one of the key points.

This is the first paragraph of the Wikipedia entry for the Grain LNG Terminal.

Grain LNG Terminal is a Liquefied Natural Gas (LNG) terminal on the Isle of Grain, 37 miles (60 km) east of London. It has facilities for the offloading and reloading of LNG from ships at two jetties on the River Medway; for storing and blending LNG; for truck loading; and regasifying and blending natural gas to meet UK specifications. The terminal can handle up to 15 million tonnes per annum of LNG, has a storage capacity for one million cubic metres of LNG, and is able to regasify up to 645 GWh per day (58 million cubic metres per day) for delivery into the high pressure gas National Transmission System (NTS). The facility is owned and operated by National Grid Grain LNG Ltd, a wholly owned subsidiary of National Grid.

Note.

1. This paragraph was written before the Centrica takeover.
2. The terminal also converts liquid natural gas into gas to be distributed around the UK.

The heat needed to convert the liquid natural gas to gas is provided by the Grain CHP power station.

• Currently 340 MW of heat is provided.
• If the Grain LNG terminal is expanded, it will probably need more heat.

I can see Centrica building a combined heat and power (CHP) power station, that can be expanded to meet the current and future needs of gasification at the Grain LNG terminal.

I wouldn’t be surprised to see the CHP power station fitted with carbon capture, as Kent is surely one county, where carbon dioxide can be used in food production, so we can generate our carbon dioxide and eat it.

 

 Centrica Says Their Future Development Options Include Hydrogen

This objective was set in one of the key points.

Consider.

• Centrica are an investor in HiiROC, who have a unique method of generating affordable zero-carbon hydrogen called thermal plasma electrolysis, which uses a fifth of the electricity, that traditional electrolysis does.
• HiiROC can use natural gas as a feedstock. Centrica won’t be short of that at Grain.
• There is space to build a large HiiROC system at the Isle of Grain site.
• The hydrogen could be taken away by tanker ships.

Like the electricity , which will use the 450 mile NeuConnect interconnector, the hydrogen could even be exported to Wilhelmshaven in Germany by pipeline.

Wilhelmshaven is being setup to be a major German hub to both generate, import and distribute hydrogen.

 

I asked Google AI, how much hydrogen a GWh would produce and received this answer.

A GWh of electricity can produce approximately 20-22 tonnes of hydrogen through electrolysis, depending on the efficiency of the electrolyzer. Modern commercial electrolyzers operate at an efficiency of roughly 70-80%, meaning they require about 50-55 kWh of electricity to produce 1 kg of hydrogen. A GWh (1 gigawatt-hour) is equal to 1,000,000 kWh, and 1 tonne of hydrogen contains roughly 33.33 MWh of energy. 

As it is claimed on the web that HiiROC is five times more efficient than traditional electrolysis, it could need around 10-11 kWh to produce one kg. of hydrogen.

1 GWh would produce between 90-100 tonnes of hydrogen.

 Centrica Says Their Future Development Options Include Ammonia

This objective was set in one of the key points.

I asked Google AI if ammonia can be produced from hydrogen and received this answer.

Yes, ammonia (NH3) can be produced from hydrogen (H2) through a process called the Haber-Bosch process. This process involves combining hydrogen with nitrogen (N2) from the air, under high temperature and pressure, in the presence of a catalyst.

Ammonia has a large number of uses, including making fertiliser and the powering of large ships.

I asked Google AI, if there are small Haber-Bosch processes to make ammonia from hydrogen and nitrogen and received this answer.

Yes, there are efforts to develop smaller-scale Haber-Bosch processes for ammonia production. While the traditional Haber-Bosch process is typically associated with large industrial plants, research and development are exploring ways to adapt it for smaller, distributed production, particularly for localized fertilizer or fuel applications.

I wondered if Centrica are involved in the efforts to develop smaller-scale Haber-Bosch processes for ammonia production.

Google AI gave me this quick answer.

Centrica is involved in research related to the Haber-Bosch process, particularly in the context of transitioning to a low-carbon energy future. They are exploring how to adapt the Haber-Bosch process, which is crucial for fertilizer production but also a significant source of CO2 emissions, to utilize renewable energy sources. This includes investigating the use of green hydrogen produced from water electrolysis and renewable electricity. Centrica is also involved in research related to using ammonia as a fuel, including potentially for power generation

That looks to be a very positive answer. Especially, as local low-carbon fertiliser production could be a very powerful concept.

Centrica Says Their Future Development Options Include Bunkering

This objective was set in one of the key points.

Bunkering is the process of refuelling ships.

I didn’t know much about bunkering, when I started to read Centrica’s press release, but the Wikipedia entry, was a good way to get some information.

This section in the Wikipedia entry is entitled Two Types Of Bunkering, where this is said.

The two most common types of bunkering procedure at sea are “ship to ship bunkering” (STSB), in which one ship acts as a terminal, while the other moors. The second type is “stern line bunkering” (SLB), which is the easiest method of transferring oil but can be risky during bad weather.

Over the years, I have found, that two zero-carbon fuels are under development, for powering ships; hydrogen and ammonia. Others are developing ships powered by naturalo gas.

I asked Google AI if hydrogen can power ships and received this answer.

Yes, hydrogen can power ships. It can be used as a fuel for fuel cells, which generate electricity to power the ship’s propulsion and other systems, or it can be burned in modified combustion engines. Hydrogen offers a zero-emission solution for shipping, with water vapor being the only byproduct when used in fuel cells.

Google AI also told me this.

The world’s first hydrogen-powered cruise ship, the “Viking Libra”, is currently under construction and is scheduled for delivery in late 2026. This innovative vessel, a collaboration between Viking Cruises and Italian shipbuilder Fincantieri, will utilize hydrogen for both propulsion and electricity generation, aiming for zero-emission operation.

I also asked Google AI if ammonia can power ships and received this answer.

Yes, ammonia can be used to power ships and is considered a promising alternative fuel for the maritime industry. Several companies and organizations are actively developing ammonia-powered ship designs and technologies. While challenges remain, particularly around safety and infrastructure, ammonia is seen as a key potential fuel for decarbonizing shipping.

Finally, I asked I asked Google AI if natural gas can power ships and received this answer.

Yes, ships can be powered by natural gas, specifically in the form of liquefied natural gas (LNG). LNG is increasingly used as a marine fuel, offering environmental benefits over traditional fuels like diesel.

It would seem to be a case of you pays your money and makes a choice between one of four technologies; ammonia, hydrogen fuel-cell, hydrogen-ICE and LNG.

I looks to me, that if Centrica provide bunkering services for ships, they have the means to cover most of the market by providing hydrogen and ammonia, in addition to natural gas.

Although, I don’t know much about bunkering, I do feel that the two current methods, that work for oil, could be made to work for these fuels.

This Google Map shows the Thames Estuary.

Note.

1. The Port of Tilbury is in the South-West corner of the map.
2. London Gateway is indicated by the red arrow.
3. The Isle of Grain is in the South-East corner of the map.
4. Other ports between Tilbury and the Isle of Grain include Barking, Dagenham, Dartford, Erith, Greenwich, Northfleet, Purfleet, Silvertown and Thurrock.

There was never a more true phrase than – “Location, Location and Location”. And the Isle of Grain would appear to be in the right place to send out a bunkering tanker to a passing ship, that was calling at a port in London or just passing through the Strait of Dover.

This Google Map shows the Thames between London Gateway and the Isle of Grain.

Note.

1. London Gateway is indicated by the red arrow.
2. The Isle of Grain is in the South-East corner of the map.

It seems to me, that a refuelling philosophy could easily be worked out.

How Large is The Bunkering Market?

I asked Google AI this question and received this answer.

The world bunker fuel market is a multi-billion dollar industry, with the market size valued at USD 150.93 billion in 2023. It is projected to reach USD 242.29 billion by 2032, growing at a CAGR of 5.4% according to SkyQuest Technology. In terms of volume, the global bunker demand was estimated at 233.1 million metric tons in 2023 according to the IMO.

The market is not small!

 

 

August 18, 2025 Posted by AnonW | Energy, Finance, Hydrogen, Transport/Travel | Ammonia, Ammonia-Powered Ships, Birds, Bridgepoint Group, Bunkering, Carbon Capture, Centrica, Combined Heat And Power, Germany, Grain CHP Power Station, Grain LNG Terminal, Haber-Bosch Process, HiiROC, Hydrogen-Powered Ships, Interconnectors, Isle Of Grain, Kent, Liquified Natural Gas, London Gateway, National Grid, NeuConnect, Port Of Tilbury, River Medway, RSPB, Strait Of Dover, Uniper, Wilhelmshaven, Wilhelmshaven Electrolyser, Wind Power | 4 Comments