r/nuclear • u/goyafrau • 1d ago
r/nuclear • u/bigderise • 14d ago
Things that Apparently Cause Cancer
Here is a follow-up to the Harvard cancer study rebuttal from earlier this year.
r/nuclear • u/ChGehlly • Sep 07 '26
Korea to invest in construction of 8 reactors in the United States, using mix of both APR1400 and AP1000 designs, deal to be signed as early as next week
After negotiations, it appears that the two parties have agreed to construct a mix of both American and Korean designs, despite the Trump Administration's push for using only the AP1000 design, which was reported earlier this year. The final agreement of $120 billion in investment will go towards the likely construction of four APR1400 units and four AP1000 units in the United States. The APR1400 gen III design is based heavily off the American company Combustion Engineering's SYSTEM-80 gen II design and was certified by the NRC for use in the United States in 2018.
r/nuclear • u/JoburgBBC • 3h ago
South Africa signs nuclear-fuel venture with US company as Bill Gates’s TerraPower prepares to buy future output
r/nuclear • u/Stukwan • 13h ago
Advanced nuclear reactors to test on-site processing for critical materials in US
r/nuclear • u/Shot-Addendum-809 • 15h ago
Russia's Rosatom discusses construction of another phase of Rooppur NPP in Bangladesh
MOSCOW. Oct 14 (Interfax) - The Rosatom state corporation is discussing with Bangladesh the construction of another phase of high-capacity units at the Rooppur Nuclear Power Plant (NPP), company CEO Alexei Likhachev told reporters on the sidelines of the Russian Energy Week forum.
"Truly, we are primarily talking about a possible additional phase of large units," he said in response to a question of exactly what is being discussed with the country regarding the expansion of cooperation.
"Although our Bangladeshi friends are also discussing small-capacity units and a research reactor with us, the main trend for future development, in my view, is increasing the capacity of the Rooppur NPP," he said.
Likhachev earlier said that the Rosatom state corporation is discussing the expansion of its nuclear project with Bangladesh and expects the first power unit of the country's NPP to reach initial power generation in late November.
In late April, Rosatom carried out the physical start-up of the first power unit at the NPP in Bangladesh.
"On April 28, 2026, the loading of fresh nuclear fuel began at Unit 1 of the Rooppur NPP [the general contractor and general designer of which is Rosatom's Engineering Division]. This was the first stage of the unit's key start-up phase," the company said in a statement.
Rosatom has been constructing the plant based on an intergovernmental agreement signed in 2011. The NPP will comprise two power units with a combined capacity of 2400 MW. Energy-deficient Bangladesh currently has no nuclear power generation.
Rosatom state nuclear energy corporation expects to begin commissioning the second power unit of the Rooppur Nuclear Power Plant in Bangladesh next year, Likhachev told reporters.
He also said that Bangladesh is interested in other proposals from Rosatom as well. "Both the prime minister and the minister asked us about other possible proposals, particularly small nuclear power plants and floating nuclear power plants, which are included in our combined proposal from Rosatom [to other countries]," Likhachev said.
Source: Interfax ( Because Russian websites banned here)
r/nuclear • u/Spare-Pick1606 • 20h ago
Russia Signs Agreement With Indonesia For Floating Nuclear Power Plants
nucnet.orgr/nuclear • u/Stukwan • 17h ago
Energy Advanced robotics propels nuclear reactor core rebuild ahead of 125 MW grid boost
r/nuclear • u/Vailhem • 14h ago
Adding Philippine natural zeolite to concrete increases its strength and radiation-shielding ability - Sept 2026
r/nuclear • u/whatsadikfore • 1d ago
Visiting the NS Savannah
Standing inside the reactor core and the control room have to be some of the coolest things I've done as a nuclear nerd. The ship was built as part of Eisenhower's "Atoms for Peace" program and sailed for about 10 years. The reactor was de-fueled in 1971 and the pressure vessel was removed in 2022. According to lore, Gene Roddenberry was inspired by the design aesthetic in the lounge for the TV show Star Trek.
r/nuclear • u/magnificient- • 19h ago
Free directory of who owns, operates, supplies and buys power from US nuclear plants, with a source for each fact
Some examples: Vogtle's four co-owners and their shares, Microsoft's 20-year deal with Constellation to restart Crane, Talen's 1,920 MW deal with Amazon at Susquehanna, and where TRISO-X will get its HALEU (Centrus, Piketon).
Each fact links to the filing, announcement or article it came from, with the quoted line and the date it was checked. There are no login nor ads.
It covers all 95 operating US reactors, plus about 82 companies and 79 plants and sites so far. If something is wrong or missing, please drop a comment or use the "Report a correction" link on any fact.
I maintain it, so feedback goes straight to me.
r/nuclear • u/FewUnderstanding5221 • 1d ago
US DOE funding to accelerate molten salt reactor development
The Molten Chloride Reactor Experiment aims to achieve first criticality in 2027, with the US Department of Energy approving cost-shared funding under its Advanced Reactor Demonstration Program.
The funding for an accelerated final stage is intended to support work by utility Southern Company, Idaho National Laboratory and maritime nuclear specialist Core Power to "advance scientific understanding of molten salt reactor technology and inform future reactor development".
r/nuclear • u/SloanTheNavigator • 1d ago
Slovakia Connects New Nuclear Reactor at Mochovce
It got temporarily delayed on Tuesday thanks to a technical test, but this Bloomberg article doesn't appear to be a false alarm this time. With this grid connection, Slovakia will now likely surpass France in share of electricity generated by nuclear power, and will become a net power exporter
r/nuclear • u/Spare-Pick1606 • 1d ago
France Explores Nuclear Microreactors to Power Military Bases and Field Operations
r/nuclear • u/Vailhem • 1d ago
US Floating Nuclear Startup Buys Uranium For Its First Maritime Reactor System Stored At The Largest Commercial Nuclear Fuel Facility In The US
r/nuclear • u/Diabolical_Engineer • 2d ago
Happy Dresden-1 Day
On this day in 1959, Dresden-1 achieved criticality for the first time as the first commercial, privately financed nuclear plant in the United States.
In honor of the occasion, here's a selection of artifacts, documents, and photos from the early history of the plant. First, a pen and pencil set Commonwealth Edison gave away for the initial criticality. Then an invitation to the kickoff ceremony for major construction, with some items from GE Vallecitos, where the initial group of operators was trained. Then a publicity photo, memo, and candy dish from the dedication of the plant in 1960. And finally, for the operational phase of the plant, a BWR/1 fuel spacer grid, photos of the first in service inspection, and the first in service inspection report sent to the State of IL boiler inspector
r/nuclear • u/Mantergeistmann • 1d ago
NRC Updates AP1000 Design Certification, Streamlines Future Reactor Licensing
nrc.govThe Nuclear Regulatory Commission today updated and renewed the certification of Westinghouse’s AP1000 reactor design, incorporating lessons from the construction and operation of Vogtle Units 3 and 4 (the nation’s newest nuclear reactors) into the certified design.
The action gives future applicants a standardized, field-proven AP1000 design that reflects how the reactors were actually constructed and operated. It is intended to reduce duplicative regulatory reviews, lower licensing costs and help future AP1000 projects move through the NRC’s licensing process more efficiently.
During the construction and startup of Vogtle Units 3 and 4, the NRC reviewed and approved nearly 200 license amendments. By incorporating applicable design changes and lessons learned from that experience into the renewed certification, future AP1000 applicants can reference an updated design rather than seeking separate approval for changes the NRC has already evaluated.
“The NRC’s approval of the updated AP1000 design provides the regulatory foundation for America to move from building individual reactors to deploying them at scale,” Chairman Ho K. Nieh said. “This is how safety-focused, enabling regulation reduces regulatory uncertainty and investment risk.”
The renewed certification extends the AP1000 design’s validity through 2066. Future applicants will still be required to obtain NRC approval for site-specific environmental, safety and security considerations, and today’s action does not authorize the siting, construction or operation of any facility.
r/nuclear • u/StatusFantastic7112 • 1d ago
internship at westinghouse
i just accepted an offer for next summer with westinghouse as an APx project engineer and im really excited! im looking to see if anyone else has interned with them before because i have a few questions:
i got an offer of a $4k stipend for housing. will this be enough for cranberry township if i have roommates?
did your internship turn into a full time offer? if so, what was the total compensation? do you like what you currently do?
do you get free merch (this is a dumb question but i love free company merch lol)
thank you!
r/nuclear • u/Shot-Addendum-809 • 1d ago
The missing link for Gen IV
"NEi: How is MBIR different from earlier research reactors?
VK: Flexibility and scale. MBIR is a fast-neutron reactor designed with the needs of the global nuclear industry in mind for the next 50 years. Its defining feature is the testing equipment: instrumented cells and autonomous loop devices – independent circuits inside the core – that can fully replicate the operating conditions of different reactor types using different coolants (sodium, lead, lead-bismuth, gas), temperatures and pressures. That means several reactor concepts can effectively be modelled simultaneously, and prospective structural and fuel materials tested to support Gen IV concepts. An extensive network of vertical and horizontal experimental channels and ex-vessel devices adds capacity for large-scale materials science testing.
Beyond research, MBIR also has a practical dimension: it can produce a wide range of medical and industrial isotopes, and – as a functioning power plant – it will supply heat and electricity to the surrounding region, supporting local infrastructure.
NEi: Why are materials such a critical bottleneck for fast reactors?
VK: Two factors. First, compatibility with liquid-metal coolants – sodium, lead, lead-bismuth – places tough demands on the corrosion resistance of structural materials. Second, radiation damage in a fast-neutron spectrum causes swelling, radiation creep and helium embrittlement, which can sharply cut the service life of fuel cladding and in-vessel components. Solving these problems is one of the hardest engineering challenges in the industry, and it determines not just safety but the economics of fast reactors – burn-up and how long a fuel cycle can be achieved.
NEi: What role do research reactors play in moving Gen IV technology toward commercialisation?
VK: A decisive one. Many Gen IV concepts – sodium, lead, gas or molten-salt cooled fast reactors – already exist on paper or as pilot designs, but moving to industrial deployment requires large-scale experimental verification: confirming computational models, testing fuel and material behaviour, working through operating regimes. Research reactors remove uncertainty from that process, and MBIR’s capabilities should shorten the path from concept to deployment while lowering technological and investment risk.
Almost every aspect of reactor operation needs experimental validation; in practice, that means things such as neutron-physics characteristics of the core for each reactor type; how structural materials behave in contact with different coolants (corrosion in lead or molten salts, high-temperature creep for gas-cooled designs); thermal-hydraulic processes at temperatures well above those in conventional water reactors, including severe-accident scenarios; and fuel performance at high burn-up and damage doses. This is an enormous body of data that can only be generated through a dedicated experimental base.
There’s a real gap opening up in the current global research infrastructure. More than 670 research reactors have been built worldwide over the course of the nuclear era, but the overwhelming majority were commissioned more than 40 years ago, and the fleet is ageing faster than experimental demand is growing. The shortage of fast research reactors is particularly acute, even though they are the ones critical to closed fuel cycle and Gen IV development. That’s the gap MBIR is intended to fill, and it’s being built explicitly on a logic of international cooperation, pooling resources and expertise for Gen IV development"
r/nuclear • u/Spare-Pick1606 • 2d ago
US Approves Funding For Final Stage Of Molten Chloride Reactor Experiment
nucnet.orgr/nuclear • u/C130J_Darkstar • 2d ago
Kairos Power Raises $643 Million for Tennessee Advanced Reactor Project
Kairos Power has secured $643 million in funding for its Hermes 2 demonstration reactor in Oak Ridge, Tennessee. The package includes $368 million from private investors and $275 million in financing from the U.S. Department of Energy.
The 50 MW fluoride salt-cooled reactor is targeting operations in 2030, with its electricity intended to support TVA's grid and growing demand from Google's data centers. The funding also supports expansion of Kairos' manufacturing capabilities.
The announcement highlights the combination of private investment and federal financing being used to advance next-generation nuclear technology. While commercial deployment remains years away, projects like Hermes 2 are an important step toward demonstrating advanced reactor designs at a meaningful scale.
r/nuclear • u/CupEcstatic2721 • 2d ago
UK Energy establishes strategic nuclear, hydrogen collaboration
r/nuclear • u/news-10 • 2d ago
Hochul vs. Blakeman: Utility bills, data centers, and ICE
r/nuclear • u/CupEcstatic2721 • 3d ago
Namibia appoints first nuclear commissioner to lead long-term atomic energy programme
r/nuclear • u/FewUnderstanding5221 • 3d ago
Czech SMR environmental impact assessment submitted
ČEZ has submitted the Environmental Impact Assessment documentation to the Ministry of the Environment for its Rolls-Royce SMR small modular reactor project in Temelín.
The submission of the Environmental Impact Assessment (EIA) is a key part of the permitting process and assesses the potential impact on the area from the proposed small modular reactor (SMR) project, as well as putting forward steps to minimise any impact.
https://www.world-nuclear-news.org/articles/czech-smr-environmental-impact-assessment-submitted