Fluid Fuel Nuclear Reactors

"This is not a race to the first plant. The real commercial race here, Jim, is the race to fleet deployment next decade, and that's the one that we want to win." 9/9

"we can serve as heat, power, and any combination in between ... Our steam systems are nonnuclear. ... This is one of the virtues of some Generation IV systems. ... you can basically rearrange them quickly without having to re-argue a safety case, which is uneconomic." 8/9

"if you can actually bring the means of gigawatt-scale industrial production with a small and modular nuclear plant to the point of industrial demand, you have something that is really a unique and different paradigm." 7/9

"The idea that you put something massive at the center of the grid and then string cables to distribute it -- that's going to take a lot of time to build that out. ... You get bottlenecks in it. We have grid congestion." 6/9

"David's design [David LeBlanc, founder and CTO of Terrestrial Energy] of a molten-salt reactor met my criteria as a nuclear machine that could be developed quickly and was very much aligned with the commercial requirements that I believe had to be met ..." 5/9

"If you look to the nuclear industry and how technologies have been selected, they've been selected for many different reasons. But I don't think nuclear technologies have ever been selected solely from the perspective of commercial performance of a nuclear machine in competitive markets." 4/9

"investors are saying 'There's something extraordinarily interesting going on here. It's not cyclical; this is a one-off moment. I want to participate ...' So the access to capital now, because of that tremendous change in sentiment, is really very different than three years ago." 3/9

"the public [market] sector investors are becoming increasingly interested in gaining exposure to the type of massive innovation factors that are now at play in the nuclear tech sector." 2/9

This interview allows Simon Irish, CEO of Terrestrial Energy, to make a maximal financial case for his company. Unlike most CEOs of nuclear-reactor startups, Irish has a background in corporate finance and analysis. This thread collects some of the most interesting quotes. 1/9

Singapore-based Thorcon has completed the "first step" of its permitting process in Indonesia. The company hopes to begin construction of its 500 MWe reactor within two years. The reactor would be built in a shipyard, installed on a floating barge, and towed into place.

Congratulations to the University of New Brunswick on the Grand Opening of their Advanced Nuclear Research Lab. | Moltex Energy Congratulations to the University of New Brunswick on the Grand Opening of their Advanced Nuclear Research Lab. The event was a huge success with attendance from Federal Attorney General Sean Fraser, ...

Moltex further commented that the UNB lab is now the leading facility in Canada for discovering the physical and chemical properties of molten salts--which is necessary for reactor safety evaluation and permitting. Moltex said it was pleased to help support the design of this facility. 2/2

UNB’s CNER opens cutting-edge lab to support Canada’s nuclear energy future This afternoon, the Centre for Nuclear Research (CNER) at the University of New Brunswick (UNB) formally opened their new Advanced Nuclear Reactors Laboratory (ANRL).

Univ. of New Brunswick has opened its Advanced Nuclear Reactors Laboratory to accelerate R&D, technical support, and workforce development. Moltex Energy, a UNB research partner for more than 7 years, noted that the facilities are specifically designed to handle molten salts. 1/2

Joint IAEA-GIF Webinar on Advanced Nuclear Technologies for Maritime Applications Joint IAEA-GIF Webinar on Advanced Nuclear Technologies for Maritime Applications View Presentations and Watch Recording Register here to attend The International Atomic Energy Agency (IAEA) and the G...

The IAEA/GIF IV webinar has other presentations of interest. Fans of Kirk Sorensen and Flibe Energy will enjoy his speculative concepts for maritime power plants, which are far removed from his company's current development work. 3/3

Conceptual design is now complete, and Saltfoss will begin the formal licensing process in South Korea later in 2025. They plan to start construction in 2030 and start reactor operation in 2032. By the end of the 2030s they aim to have up to 6 gigawatts in operation. 2/3

Esben Klinkby, a VP of Saltfoss Energy (formerly Seaborg Technologies), presents the firm's current status and long-term plans. Their principal product is a floating power barge with low-enriched-uranium molten-salt reactors. They are designing and testing with more than 18 partners worldwide. 1/3

This thread about China's operating thorium molten-salt reactor includes a complete news article translated into English.

The Canadian subsidiary is putting a positive spin on a potential sale and moving ahead with pre-licensing work.

Moltex Canada pushes on with nuclear project as U.K. parent struggles Moltex’s wholly owned Canadian subsidiary is facing complications in its taxpayer-sponsored efforts to construct small modular reactors, or SMRs, in New Brunswick

As for the reorganization, the Canadian CEO is hopeful:

"Rory O’Sullivan ... said the British company’s shareholders would not approve the Canadian subsidiary’s fundraising efforts, effectively stalling them.... 'Really, we are just excited to get new owners in place and get back to business.' "

Moltex Energy Initiates Pre-Licensing Consultation of WATSS Technology with CNSC   - Moltex Energy Moltex WATSS pre-licensing.pdf Moltex Energy Initiates Pre-Licensing Consultation of WATSS Technology with CNSC Saint John, NB, 14 April, 2025 – Moltex Energy Canada Inc. (Moltex) has recently entered...

Even as Moltex Energy faces reorganization and a potential sale to new owners, its Canadian subsidiary is pushing ahead with a pre-licensing agreement with Canadian regulators. Pre-licensing discussions will resolve safety and security issues early, so the permitting process can be streamlined. 1/2

Terrestrial Energy will consummate its relationship with a SPAC to become the world's first publicly traded molten salt reactor company. The deal will provide $280M in funding, which may be used to build the firm's pilot reactor in Brazos County, Texas.

I don't know, but it's a good idea!

Avant-projet sommaire -APS- et phase préliminaire de l'ASNR Moins d'une année pour livrer 3 APS : c'est la prouesse réalisée par nos équipes. Pour récompense, nous passons en phase préliminaire de l'ASNR.

Stellaria, a French developer of fast-spectrum molten chloride salt reactors, announced that it passed an initial safety review by French regulators "in record time." Stellaria's reactor is now officially in the preliminary phase of permitting for construction and operation.

Dutch province invests in molten salt reactors The southern Netherlands province of North Brabant is investing nearly €4m ($4.28m) to develop a new generation of molten salt…

Thorizon, a spinoff from a Dutch nuclear research lab, will build a non-fueled prototype reactor for testing. Its molten-salt tech uses a chloride fuel-salt mixture of uranium, spent nuclear fuel, and thorium. The CEO calls it "the first steps from the drawing board to the realization of parts..."

Nuclear Power Renaissance Underway in West Texas When you think of innovative advancements in nuclear power technology, places like the Idaho National Laboratory and the Massachusetts Institute of

This is a worthwhile podcast interview with Natura Resources CEO Doug Robison -- well-informed, to the point, and packed with facts. Robison says the MSR-1 research reactor will begin operation in early 2027, and thinks that Natura's MSR-100 commercial reactor will begin operation by 2030.

Thorcon has been working with Indonesian government, university, and commercial partners for over 8 years. It's pursuing a conventional development strategy: it will design a "paper" reactor and obtain all permits, financing, and construction agreements prior to building a single component.

Unlocking the Future of Nuclear Fuel Recycling - Moltex Energy watss-brochure.pdf

This 14-page brochure contains additional description of the recycling process and its potential. Over the next two years, Moltex Energy plans to build a simulated-fuel version of the entire process, followed by a larger rig that uses real used fuel in a shielded hot-cell facility.

Moltex Energy Achieves Breakthrough in Nuclear Fuel Recycling with WATSS Technology - Moltex Energy Saint John, NB, March 3, 2025 – Moltex Energy Canada Inc. (Moltex) is shaking up nuclear waste management with its revolutionary Waste to Stable Salt (WATSS) process. This innovative technology is set...

Moltex Energy announced that its nuclear waste recycling technology has been validated by the Canadian Nuclear Laboratories, using used fuel from a commercial reactor in Canada. The company claims that its process is a financially viable alternative to conventional disposal options.

YouTube video by Kyle Hill Why Isn’t Thorium Changing the World?

This profile of the Copenhagen Atomics company is accessible, engaging, upbeat, and future-oriented. In several ways, it's a model for communicating advanced-nuclear ambitions to curious yet nontechnical audiences.

According to this GIF webinar, the reactor has been operating intermittently since last year.

Naarea opens test facility for microreactor development French microreactor developer Naarea announced the commissioning of its industrial test facility and laboratory, referred to as the I-Lab. It will be used to conduct non-nuclear tests and experiments ...

French microreactor developer Naarea announced the commissioning of its industrial test facility and laboratory, which will be used to conduct non-nuclear tests and experiments to support the development of its XAMR molten salt fast microreactor.
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