Centrica, X-energy Advance Nuclear Plans As UK Regulators To Begin Design Review For Xe-100
The title of this post, is the same as that of this press release from Centrica.
This is the sub-heading.
On the one-year anniversary of the Centrica X-energy partnership being signed, the UK Government has directed regulators to accept the X-energy Xe-100 Advanced Modular reactor into the Generic Design Assessment, marking a significant step toward UK commercial licensing.
Under their partnership, the companies intend to deploy up to 6 GW of new nuclear capacity in the UK (10-20 Xe-100 power stations depending on size of each installation)
These first two paragraphs add some details.
Centrica and X‑Energy, Inc., a leading developer of advanced nuclear reactors and fuel technology, today announced that X‑energy’s Xe‑100 Generation IV advanced Small Modular Reactor (“SMR”) has been accepted into the United Kingdom’s Generic Design Assessment (“GDA”) process.
GDA acceptance formally triggers the process of assessing the design’s acceptability for deployment and operation ahead of the technical and environmental evaluations required for site‑specific licensing and permitting. The assessment is expected to take approximately three years and will be administered by the UK Office for Nuclear Regulation (“ONR”), the Environment Agency (EA), and Natural Resources Wales
To learn more, I asked Google AI for what it knows on the Xe-100 reactor and I received this.
The Xe-100 is an advanced Generation IV high-temperature gas-cooled pebble-bed small modular nuclear reactor developed by the American company X-energy.
Key Specifications & Design
Power Output: Generates about 80 megawatts of electricity (MWe) or 200 MW thermal per unit, and can be scaled up into a four-pack configuration yielding 320 MW.
Cooling System: Uses inert helium gas instead of water to remove heat from the core, reaching operating temperatures above 750°C.
Fuel Type: Runs on proprietary TRISO-X fuel pebbles, where each billiard-ball-sized pebble contains roughly 18,000 microscopic TRISO fuel particles that act as individual containment vessels.
Note.
- 320 MW may seem small, but you have to remember Sizewell A was two 210 MW Magnox reactors and it operated for forty years.
- I like the choice of helium for a coolant. Especially, as the gas is widely used for cooling superconducting magnets, so there must be plenty of expertise.
- Helium is also present in the atmosphere at 5.2 parts per million.
- I also like the concept of the fuel pebbles.
These are some of my questions.
Where Was TRISO Fuel Developed?
The Wikipedia entry for TRISO Fuel has a History section, which starts with this paragraph.
Coated-particle ceramic fuels were initially developed in the United Kingdom as part of the Dragon reactor project. During the development of the Dragon reactor, its designers became concerned by the need to purge gaseous fission products from the reactor core and their potential migration to other parts of the reactor This concern led to the choice of coated-particle fuel, where the fuel would be formed from small particles of uranium then coated with pyrolytic carbon. The inclusion of silicon carbide as a diffusion barrier was first suggested by D. T. Livey in 1961, in order to better retain fission products.
Note.
- The United States and Germany made contributions to the development of TRISO fuel.
- the first commercial reactor to use TRISO, was the 330 MWe Fort Saint Vrain Nuclear Power Plant
- The experimental High Temperature Test Reactor in Japan, constructed in 1998, uses prismatic UO2 TRISO fuel.
- Japan has the only TRISO-fueled reactor in commercial operation.
- Oak Ridge National Laboratory in the United States, developed the process used to make TRISO fuel.
The Wikipedia entry for the Dragon reactor is worth a read.
These are the first two paragraphs of its Wikipedia entry.
Dragon was an experimental high temperature gas-cooled reactor at Winfrith in Dorset, England, operated by the United Kingdom Atomic Energy Authority (UKAEA). Its purpose was to test fuel and materials for the European High Temperature Reactor programme, which was exploring the use of tristructural-isotropic (TRISO) fuel and gas cooling for future high-efficiency reactor designs. The project was built and managed as an Organisation for Economic Co-operation and Development/Nuclear Energy Agency international project. In total, 13 countries were involved in its design and operation during the project lifetime.
Originally conceived as a small research reactor, during the design phase it grew larger. The choice of helium coolant was made after a long debate within the UKAEA between proponents of helium and carbon dioxide, with helium ultimately selected. Groundbreaking occurred in 1960. It operated from 1965 to 1976, and is generally considered extremely successful.
Who Are The Technology Partners Of X-energy?
I had to ask Google AI this question and received this reply.
X-energy works with major technology, industrial, and energy partners to develop and deploy its advanced small modular nuclear reactors (SMRs) and TRISO-based fuel technology.
Key Technology and Strategic Partners
Amazon and AWS: A primary investor (through the Climate Pledge Fund) and customer, Amazon collaborates with X-energy on scaling nuclear energy for data centers and AI infrastructure. X-energy, Amazon Web Services (AWS), NVIDIA, and Idaho National Laboratory are founding members of Project Prometheus to apply AI to advanced nuclear deployment.
NVIDIA: A founding partner in Project Prometheus alongside AWS and Idaho National Laboratory, helping integrate AI accelerators and tools into nuclear design and operations.
Doosan Enerbility & Korea Hydro & Nuclear Power (KHNP): South Korean industrial partners collaborating to support multi-gigawatt deployments of Xe-100 reactors and manufacture key components.
Energy Northwest: A utility partner working on X-energy’s first-of-a-kind project development in Washington state.
Dow Inc.: Partnered with X-energy to deploy an initial four-unit Xe-100 plant at Dow’s Seadrift chemical manufacturing site in Texas.
Centrica: Partnered through a Joint Development Agreement to deploy Advanced Modular Reactors and pursue up to 6 gigawatts of new nuclear capacity in the United Kingdom.
IHI Corporation: Partnered to expand U.S.-Japan supply chain collaboration and commercial-scale manufacturing for reactor components.
Oak Ridge National Laboratory: Collaborates with X-energy’s fuel subsidiary, TRISO-X, on advanced nuclear fuel research.
Note.
- There are companies and organisations here from Korea, Japan, the US and the UK.
- Do Amazon and Centrica see an Xe-100 reactor as a reliable way of powering a data centre without a grid connection?
- The Korean and Japanese companies would be ideal to ensure the quality of reactor and other key compoonents.
- Chemical manufacturing sites use a lot of electricity and Dow’s contribution could define a widespread use of the Xe-100.
- Oak Ridge have been a client of mine in the past and like AWRE in England, I would trust their nuclear technology.
I also believe that if you put these companies in a joint venture, you’ll get out more ideas than you expect.
Who Are The Financial Partners Of X-energy?
I had to ask Google AI this question and received this reply.
Amazon & Climate Pledge Fund: Led major funding rounds (including a $500 million investment in 2024 and ongoing backing) and holds a significant stake in the company.
Jane Street: Led X-energy’s oversubscribed $700 million Series D financing round.
Ares Management: Provided financial backing and funds across multiple investment rounds alongside special purpose acquisition sponsorships.
Emerson Collective: Participated as a key venture capital backer across multiple funding rounds.
NGP Energy Capital Management: Contributed significant capital through multiple financing stages.
Segra Capital Management: Acted as an ongoing financial participant in major capital raises.
Other Investors: Includes ARK Invest, Point72, Galvanize, Ken Griffin (Citadel founder), XTX Ventures, Reaves Asset Management, and the University of Michigan.
Note that like the technology, the finance comes from a wide variety of sources.
This all sounds like a good positive start.
Will Centrica, X-energy Be Going For A Multi-Country Design Review For Xe-100?
There are four major countries with extensive nuclear power experience, with stakes in the Xe-100; Japan, Korea, the US and the UK.
There is also Oak Ridge in the US, which appears to be supplying the concept of the fuel.
If this group can’t convince the regulators in these four countries, that they have a safe and viable project, then they shouldn’t be in business.
Conclusion
It’s now mainly up to the regulators.
Unfortunately, you get stories with titles like this article on the BBC, which have a title of Green Party Leader Criticises Nuclear Reactor Plan.
UK Govt Awards Almost GBP 33m To Innovative Energy Storage Projects
The title of this post is the same as that of this article on Renewables Now.
This is the first paragraph.
The UK government has awarded GBP 32.9 million (USD 39.7m/EUR 38.3m) in funding to five innovative energy storage projects under the second phase of its Longer Duration Energy Storage competition.
These are the projects.
StorTera
StorTera has secured GBP 5.02 million to create a prototype demonstrator of its single liquid flow battery (SLIQ) technology.
The company’s main product is the SLIQ Flow Battery, for which it gives the headline of Reliable, Economical Energy For 20 Years.
This is a description of the technology.
The revolutionary StorTera SLIQ single liquid flow battery offers a low cost, high performance energy storage system made with durable components and supported by our flexible and adaptable inverter and control system. The StorTera SLIQ battery brings the following benefits/advantages:
- Low levelised cost of storage and capital cost
- Long lifetime of up to 20 years (min. 7,500 cycles)
- Long duration energy with the energy and power capacity easily and independently scalable
- Safe with no cooling requirements and high flash point materials
- Fully recyclable at the end of lifetime
This is said about costs – Using low cost materials and manufacturing techniques, we predict capital costs of approximately £120/kW and £75/kWh by 2022.
I feel there could be something about this technology, but we’ll only know, when the demonstrator is fully working.
Sunamp
Sunamp will get GBP 9.25 million to test its thermal storage system in 100 homes across the UK.
On their home page, Sunamp has a banner of World Leading Thermal Technologies, with this description underneath.
Sunamp designs and manufactures space-saving thermal storage that makes UK homes, buildings and vehicles more energy-efficient and sustainable, while reducing carbon emissions and optimising renewables.
They do appear to have sold something, which is always a useful thing to do.
This page on their web site, describes their Thermino Thermal Storage For Domestic Hot Water, where this is said.
Thousands of Sunamp thermal batteries are already in homes across the UK storing heat from low-carbon energy sources and releasing it for mains-pressure hot water when needed.
Our Thermino batteries replace traditional hot water cylinders – direct (for grid electricity and solar PV) or indirect (for boilers and heat pumps).
They are up to four times smaller than the equivalent hot water tank because they are filled with our energy-dense phase change material, Plentigrade. This means that heat pump systems can be installed where otherwise they wouldn’t fit, for example.
The key seems to be this substance called Plentigrade!
This page on their web site describes Plentigrade.
Under a heading of Storing Energy As Heat And Releasing It When, And Where, It’s Needed, this is said.
Sunamp thermal batteries are energy-saving thermal stores containing Plentigrade: our high-performance phase change materials (PCMs) that deliver heating or cooling reliably, safely and efficiently.
Plentigrade, with its perpetual phase changing ability, is at the core of our products.
Our breakthrough technology was created in collaboration with the University of Edinburgh, ranked among the top 20 universities in the world, and the UK’s national synchrotron particle accelerator, Diamond Light Source. To find out more about the chemistry behind Plentigrade, read our blog.
Note.
- This product almost looks to be too good to be true.
- But I’ve checked and it doesn’t seem to have appeared on Watchdog.
- It’s yet another breakthrough, that has used the Diamond Light Source.
- How many other developments would happen with a Diamond 2 in the North, as I wrote about in Blackpool Needs A Diamond?
I have a feeling, that my house needs one of Sunamp’s thermal batteries.
University of Sheffield
The article says this about a grant to the University of Sheffield.
The University of Sheffield has been awarded GBP 2.6 million to develop a prototype modular thermal energy storage system designed to provide optimised, flexible storage of heat within homes.
There are several thermal batteries around for houses.
RheEnergise
The article says this about a grant to RheEnergise.
With a GBP-8.24-million grant, RheEnergise Ltd will build a demonstrator of its High-Density Hydro pumped energy storage system near Plymouth. The technology uses a fluid denser than water to generate electricity from gentle slopes.
I wrote about this in Plan For £8.25m Plymouth Energy Plant To Generate Power From Cream-Like Fluid.
EDF UK R&D
The article says this about a grant to EDF UK R&D.
The government is also backing with GBP 7.73 million an initiative of EDF UK R&D and its partners, the University of Bristol, Urenco and the UK Atomic Energy Authority (UKAEA), to develop a hydrogen storage demonstrator using depleted uranium at UKAEA’s Culham Science Centre in Abingdon, Oxfordshire.
I wrote about this in Innovative Hydrogen Energy Storage Project Secures Over £7 million In Funding.
Conclusion
They are a mixed bunch of ideas from around the UK, that I think will produce at least two good winners.
Innovative Hydrogen Energy Storage Project Secures Over £7 million In Funding
The title of this post, is the same as that of this press release from the University of Bristol.
These two paragraphs outline the project.
A consortium, involving the University of Bristol, has been awarded £7.7m from the Net Zero Innovation Portfolio (NZIP) of UK Government’s Department for Business, Energy & Industrial Strategy (BEIS) to develop pioneering hydrogen storage.
The University, EDF UK, UKAEA and Urenco will together develop a hydrogen storage demonstrator, in which hydrogen is absorbed on a depleted uranium ‘bed’, which can then release the hydrogen when needed for use. When stored, the hydrogen is in a stable but reversible ‘metal hydride’ form. The depleted uranium material is available from recycling and has been used in other applications such as counterbalance weights on aircraft.
I particularly like this paragraph from Professor Tom Scott.
Professor Tom Scott from the University’s School of Physics and one of the architects of the HyDUStechnology, said: “This will be a world first technology demonstrator which is a beautiful and exciting translation of a well proven fusion-fuel hydrogen isotope storage technology that the UK Atomic Energy Authority has used for several decades at a small scale. The hydride compounds that we’re using can chemically store hydrogen at ambient pressure and temperature but remarkably they do this at twice the density of liquid hydrogen. The material can also quickly give-up the stored hydrogen simply by heating it, which makes it a wonderfully reversible hydrogen storage technology.”
It’s elegant and it certainly, is an unusual method of storing hydrogen.
I do see a problem in that depleted uranium is controversial because of its use in munitions; most notably in the Gulf War.
I also see its heavy weight being rather a disadvantage in storing hydrogen for mobile applications.
So, I will keep an open mind on this technology.
The Anonymous Widower 