Fluid Fuel Nuclear Reactors
@ffnuclear.bsky.social
Recent news, presentations, and documents about fluid-fuel / liquid-fuel nuclear reactors around the world. Compiled by a layperson-enthusiast.
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
Simon Irish: Molten Salt & Market Moves, Terrestrial Energy’s Vision for Nuclear’s Future | Podcast Episode on RSS.com
In this episode of the Advanced Nuclear podcast, Simon Irish, CEO of Terrestrial Energy, talks about his company, its Integral Molten Salt Reactor (IMSR) technology, and the financial aspects of the a...
rss.com
August 18, 2025 at 6:37 PM
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.
Indonesia's nuclear regulator has approved Thorcon's site evaluation plan and the site evaluation management system plan for a proposed power plant based on its advanced molten salt reactor technology at a site on Kelasa Island in Bankga Belitung Province.
www.world-nuclear-news.org/articles/reg...
www.world-nuclear-news.org/articles/reg...
Regulatory approval for Indonesian site survey
Indonesia's nuclear regulator has approved Thorcon's site evaluation plan and the site evaluation management system plan for a proposed power plant based on its advanced molten salt reactor te...
www.world-nuclear-news.org
August 7, 2025 at 12:04 PM
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.
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
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).
blogs.unb.ca
July 31, 2025 at 5:34 PM
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
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
conferences.iaea.org
May 19, 2025 at 2:45 PM
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.
GMW article is very interesting also, b/c it explicitly mentions that LF1 is not the goal, but just a 1st step towards an ENTIRE MSR INDUSTRY that they're building from the ground up.
Also USA is the rabbit in 'the tortoise & the hare'; we've only been yelling WAKE UP! for what, 15-20 years now? 😵
Also USA is the rabbit in 'the tortoise & the hare'; we've only been yelling WAKE UP! for what, 15-20 years now? 😵
April 21, 2025 at 9:08 PM
This thread about China's operating thorium molten-salt reactor includes a complete news article translated into English.
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
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...
www.moltexenergy.com
April 14, 2025 at 1:05 PM
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.
www.terrestrialenergy.com
March 27, 2025 at 12:35 PM
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.
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.
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.
www.stellaria.fr
March 14, 2025 at 6:37 PM
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.
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..."
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…
www.neimagazine.com
March 10, 2025 at 5:56 PM
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..."
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.
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
www.powermag.com
March 6, 2025 at 1:54 PM
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.
PT Thorcon Power Indonesia has submitted documents to Indonesia's nuclear regulator, initiating the licensing process for the construction of a power plant based on its advanced molten salt reactor technology.
www.world-nuclear-news.org/articles/tho...
www.world-nuclear-news.org/articles/tho...
Thorcon applies to build Indonesia's first nuclear power plant
PT Thorcon Power Indonesia has submitted documents to Indonesia's nuclear regulator, initiating the licensing process for the construction of a power plant based on its advanced molten salt reacto...
www.world-nuclear-news.org
March 5, 2025 at 7:34 PM
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.
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.
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...
www.moltexenergy.com
March 3, 2025 at 1:03 PM
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.
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.
Why Isn’t Thorium Changing the World?
YouTube video by Kyle Hill
www.youtube.com
March 2, 2025 at 5:15 PM
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.
Reposted by Fluid Fuel Nuclear Reactors
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.
www.world-nuclear-news.org/articles/naa...
www.world-nuclear-news.org/articles/naa...
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 ...
www.world-nuclear-news.org
February 7, 2025 at 3:46 PM
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.
www.world-nuclear-news.org/articles/naa...
www.world-nuclear-news.org/articles/naa...
A potential earthquake in the world of molten-salt reactors. The Texas A&M RELLIS campus invited 3 molten-salt reactor companies to build commercial plants, with the university handling permitting. It represents an unprecedented ambition to vault into the leadership of advanced-reactor development.
NEW: Texas A&M has picked 4 companies to explore building advanced nuclear reactors at its Rellis research campus in Bryan. It wants $200M from the legislature to do this.
The companies are: Kairos Power, Natura Resources, Aalo Atomics & Terrestrial Energy. www.houstonchronicle.com/business/ene...
The companies are: Kairos Power, Natura Resources, Aalo Atomics & Terrestrial Energy. www.houstonchronicle.com/business/ene...
Exclusive: Texas A&M picks 4 companies to build cutting-edge nuclear reactors
Texas A&M has picked Kairos Power, Natura Resources, Aalo Atomics and Terrestrial Energy to potentially build commercial nuclear reactors at its Rellis Campus.
www.houstonchronicle.com
February 4, 2025 at 5:41 PM
A potential earthquake in the world of molten-salt reactors. The Texas A&M RELLIS campus invited 3 molten-salt reactor companies to build commercial plants, with the university handling permitting. It represents an unprecedented ambition to vault into the leadership of advanced-reactor development.
Generation IV International Forum (GIF) webinar 97 materials are now available. This presentation has two important elements. One, a global review of molten salt reactor R&D. Two, news that China's TMSR-LF1 molten-salt reactor ran at full power for 10 days in 2024, with thorium in the fuel mix. 1/3
January 29, 2025 at 6:21 PM
Generation IV International Forum (GIF) webinar 97 materials are now available. This presentation has two important elements. One, a global review of molten salt reactor R&D. Two, news that China's TMSR-LF1 molten-salt reactor ran at full power for 10 days in 2024, with thorium in the fuel mix. 1/3
Recycling of commercial nuclear fuel is banned in many countries because of weapons-proliferation fears. But a series of papers argues that recycling can pose less overall weapons-proliferation risk than using fuel once. The key factors are the recycling process and reactor design. 1/9
Resources - Moltex Energy
www.moltexenergy.com
January 14, 2025 at 4:36 PM
Recycling of commercial nuclear fuel is banned in many countries because of weapons-proliferation fears. But a series of papers argues that recycling can pose less overall weapons-proliferation risk than using fuel once. The key factors are the recycling process and reactor design. 1/9
The presentation PDFs from the 2024 Molten Salt Reactor Workshop at Oak Ridge National Lab are now online. You'll find developer updates from Copenhagen Atomics, ThorCon, Wielenga, Stellaria, Kairos Power, Natura Resources, and Terrestrial Energy. 1/4
Presentations – MSR Workshop
msrworkshop.ornl.gov
January 8, 2025 at 1:55 PM
The presentation PDFs from the 2024 Molten Salt Reactor Workshop at Oak Ridge National Lab are now online. You'll find developer updates from Copenhagen Atomics, ThorCon, Wielenga, Stellaria, Kairos Power, Natura Resources, and Terrestrial Energy. 1/4
About 20 years ago, Kirk Sorensen introduced molten salt reactors to the online realm and altered the lives of many. Today he's just as compelling when he argues for reactor designs that are simpler, cheaper, and less risky than conventional designs. @gordonmcdowell.bsky.social
Jack Spencer, Kirk Sorensen, David Brown. Restarting TMI (Three Mile Island). Nuclear waste. SWU.
YouTube video by Thorium Remix
www.youtube.com
January 2, 2025 at 2:15 PM
About 20 years ago, Kirk Sorensen introduced molten salt reactors to the online realm and altered the lives of many. Today he's just as compelling when he argues for reactor designs that are simpler, cheaper, and less risky than conventional designs. @gordonmcdowell.bsky.social
From a presentation by Robin Rickman of @terrestrialenergy.bsky.social, this chart explains how fluid-fuel reactors can be much less expensive than conventional nuclear reactors. I'll try to explain the meaning of each bar in the chart. 1/7
December 5, 2024 at 4:06 PM
From a presentation by Robin Rickman of @terrestrialenergy.bsky.social, this chart explains how fluid-fuel reactors can be much less expensive than conventional nuclear reactors. I'll try to explain the meaning of each bar in the chart. 1/7
Which small modular reactor (SMR) designs are being actively developed around the world? How far have they progressed toward construction and operation? A report by the OECD Nuclear Energy Agency answers those questions. 1/6
The NEA Small Modular Reactor Dashboard
All low-carbon solutions will be required to achieve the world's net zero targets. Nuclear energy has a role to play in meeting this need. A wave of innovation in small modular reactors (SMRs) is adva...
www.oecd.org
November 30, 2024 at 3:19 PM
Which small modular reactor (SMR) designs are being actively developed around the world? How far have they progressed toward construction and operation? A report by the OECD Nuclear Energy Agency answers those questions. 1/6
Thomas Jam Pedersen, CEO of Copenhagen Atomics, believes that spent nuclear fuel will become more valuable than gold in the future. This partnership has the potential to not only fuel molten salt reactors, but also greatly reduce the volume, longevity, and cost of nuclear reactor waste.
DeepGEO, Copenhagen Atomics Sign Pact to Align Nuclear Fuel Reprocessing with Spent Fuel Management
DeepGEO, a multinational spent nuclear fuel (SNF) repository developer, and Copenhagen Atomics, a Danish advanced thorium reactor innovator, have signed a
www.powermag.com
November 27, 2024 at 2:42 PM
Thomas Jam Pedersen, CEO of Copenhagen Atomics, believes that spent nuclear fuel will become more valuable than gold in the future. This partnership has the potential to not only fuel molten salt reactors, but also greatly reduce the volume, longevity, and cost of nuclear reactor waste.