Advanced Nuclear & SMRs
Coverage of new reactor development, small modular reactors, and next-generation nuclear technologies pursuing NRC licensing or DOE demonstration support.
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Advanced Nuclear & SMRs
Oklo acquires Oak Ridge-based manufacturing company
Oklo has bought Oak Ridge, Tenn.-based manufacturing and engineering company ARMEC to expand its own internal reactor and fuel manufacturing capabilities, the company said on Monday. California-based Oklo said in a press release that the acquisition, closed on June 4, highlights the company’s broader strategy of “integrating critical execution capabilities closer to its reactor, fuel […]
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Advanced Nuclear & SMRs
Tennessee to become ‘first state’ to implement nuclear fusion regulations
The state of Tennessee plans to roll out its own regulatory framework for nuclear fusion technologies this week, the Tennessee Department of Environment and Conservation (TDEC) recently said. According to a June 1 press release, TDEC said that Tennessee will be the first state to move forward with a technology-neutral approach for fusion machines and […]
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Reactor Licensing & Regulation
NRC to hold advanced reactor technical informational meeting
The Nuclear Regulatory Commission will host a hybrid observation meeting on June 15 to give the public an opportunity to see the agency is performing its regulatory function and to discuss regulatory issues. NRC said in its meeting memo that the meeting will be an all day meeting, starting at 8:30 a.m. Eastern Time and […]
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Advanced Nuclear & SMRs
DOE stays tight-lipped on nuclear lifecycle campus talks
The Department of Energy is not yet sharing specifics about the states underserious consideration for its Nuclear Lifecycle Innovation Campus program, The DOE program seeks federal-state partnerships to increase the nation’s fuel fabrication, uranium enrichment and waste disposal efforts. The program was announced in January, and in April, Energy Secretary Chris Wright said 28 states […]
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Advanced Nuclear & SMRs
Antares hits initial criticality for DOE’s pilot reactor program
Torrance, Calif.-based Antares Nuclear reached zero-power criticality at the Department of Energy’s Idaho National Laboratory (INL) Thursday, becoming the first reactor company to reach this milestone under the reactor pilot program. Antares’ Mark-0 test reactor reached criticality exactly one month before DOE’s reactor pilot program’s deadline of July 4. The company additionally becomes the 53rd […]
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Advanced Nuclear & SMRs
Round Up: Deep Fission gets construction partner for reactor; DOE picks two companies for used fuel canister monitoring; Deep Isolation secures over 100 patents
Deep Fission has partnered with Day & Zimmerman for the construction of Deep Fission’s underground Gravity reactor in Great Plains Industrial Park in Parsons, Kan. According to Day & Zimmerman’s Tuesday press release, Day & Zimmerman will oversee the Deep Fission’s project’s pre-construction planning and perform the above-ground construction. The reactor being constructed in Kansas […]
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Budget & Policy
HASC passes NDAA with microreactor amendment
The House Armed Services Committee passed the fiscal 2027 National Defense Authorization Act (NDAA) that would authorize $160 million for the Department of Energy’s Office of Nuclear Energy in a 44-12 vote Thursday night. The $160 million is level to what the NDAA authorized the Office of Nuclear Energy last fiscal year. On May 20, […]
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Advanced Nuclear & SMRs
Holtec’s SMR-300 picked for Utah’s Green River project
Holtec International said last week it was selected to power the Green River Advanced Nuclear Project in Emery County, Utah, Holtec will construct its SMR-300 small modular reactor (SMR) in Emery County under Gov. Spencer Cox’s (R) state initiative Operation Gigawatt to double energy production within 10 years. The company’s SMR-300 is a pressurized water […]
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Advanced Nuclear & SMRs
Rolls-Royce SMR gets two suppliers for SMR program
United Kingdom-based Rolls-Royce SMR has selected Doosan Enerbility and Škoda JS to supply reactor components for its small modular reactor (SMR) program, the company said on May 27. According to Rolls-Royce SMR’s May 27 press release, the two supply chain companies will conduct pre-production work, including reactor vessel body, design finalization and manufacturing readiness to […]
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Advanced Nuclear & SMRs
Last Energy secures DOE approval of preliminary safety analysis
Austin, Texas-based Last Energy received the Department of Energy’s approval of its preliminary safety analysis last week for its test microreactor at the Texas A&M-RELLIS campus in Bryan, Texas. Last Energy becomes the most recent nuclear company to achieve this regulatory milestone under DOE’s reactor pilot program, which seeks to have at least three test […]
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Advanced Nuclear & SMRs
New York Power Authority issues new nuclear solicitations
The New York Power Authority released two new solicitations Monday that aim to advance Gov. Kathy Hochul’s (D) plan to add five gigawatts, or 5,000 megawatts, of nuclear power. The first solicitation builds on Hochul’s initial plans to add 1,000 megawatts of new nuclear energy to upstate New York. The New York Power Authority issued […]
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Advanced Nuclear & SMRs
‘There is no nuclear renaissance going on,’ environmental groups say
Several officials from environmental organizations held a meeting in Washington, D.C. Tuesday warning against reworking the Nuclear Regulatory Commission and streamlining nuclear licensing amid the push of powering artificial intelligence (AI). Over the past year, various environmental groups have opposed the United States’ renewed interest in nuclear power, spearheaded by President Donald Trump’s administration. Trump’s […]
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Advanced Nuclear & SMRs
X-Energy files reactor design application with UK regulator
X-Energy this week submitted an application for its Xe-100 small modular reactor to the United Kingdom’s Generic Design Assessment process. The company is developing the Xe-100 reactor, which is a high-temperature gas-cooled SMR capable of producing 80 megawatts of electricity. The reactor, which is also being reviewed by the Nuclear Regulatory Commission in the United […]
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Advanced Nuclear & SMRs
‘There is no nuclear renaissance going on,’ environmental groups say
Several officials from environmental organizations held a meeting in Washington, D.C. Tuesday warning against reworking the Nuclear Regulatory Commission and streamlining nuclear deployment amid the push of powering artificial intelligence (AI). Over the past year, various environmental groups have opposed the United States’ renewed interest in nuclear power, spearheaded by President Donald Trump’s administration. Trump’s […]
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Advanced Nuclear & SMRs
New York Power Authority issues new nuclear solicitations
The New York Power Authority released two new solicitations Monday that aim to advance Gov. Kathy Hochul’s (D) plan to add five new gigawatts, or 5,000 megawatts, of nuclear power. The first solicitation builds on Hochul’s initial plans to add 1,000 megawatts of new nuclear energy to upstate New York. The New York Power Authority […]
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Advanced Nuclear & SMRs
DOE stays tight-lipped on nuclear lifecycle campus talks
The Department of Energy is not yet sharing specifics about the states underserious consideration for its Nuclear Lifecycle Innovation Campus program, The DOE program seeks federal-state partnerships to increase the nation’s fuel fabrication, uranium enrichment and waste disposal efforts. The program was announced in January, and in April, Energy Secretary Chris Wright said 28 states […]
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Advanced Nuclear & SMRs
Last Energy secures DOE approval of preliminary safety analysis
Austin, Texas-based Last Energy received the Department of Energy’s approval of its preliminary safety analysis last week for its test microreactor at the Texas A&M-RELLIS campus in Bryan, Texas. Last Energy becomes the most recent nuclear company to achieve this regulatory milestone under DOE’s reactor pilot program, which seeks to have at least three test […]
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Advanced Nuclear & SMRs
Rolls-Royce SMR gets two suppliers for SMR program
United Kingdom-based Rolls-Royce SMR has selected Doosan Enerbility and Škoda JS to supply reactor components for its small modular reactor (SMR) program, the company said on May 27. According to Rolls-Royce SMR’s May 27 press release, the two supply chain companies will conduct pre-production work, including reactor vessel body, design finalization and manufacturing readiness to […]
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Advanced Nuclear & SMRs
Holtec’s SMR-300 picked for Utah’s Green River project
Holtec International said last week it was selected to power the Green River Advanced Nuclear Project in Emery County, Utah, Holtec will construct its SMR-300 small modular reactor (SMR) in Emery County under Gov. Spencer Cox’s (R) state initiative Operation Gigawatt to double energy production within 10 years. The company’s SMR-300 is a pressurized water […]
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Reactor Licensing & Regulation
Round Up: NANO buys transportation services company; Minnesota lawmakers fund nuclear study; NRC receives medical isotope facility CPA and more
NANO Nuclear acquired a transportation and services company named Secured Transportation Services that specializes in delivering radioactive materials. NANO said in a Monday press release that this acquisition represents an important milestone for the company, helping it become a vertically integrated company addressing a challenge in the fuel cycle: the transportation of nuclear materials for […]
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Advanced Nuclear & SMRs
New York should pump the brakes on adding new nuclear power, former NRC chair Jaczko says
Former Nuclear Regulatory Commission Chair Greg Jaczko said this week New York state lawmakers should approve the proposed nuclear moratorium bill to protect taxpayers from possible financial overruns of new nuclear plants. Assembly Bill A114333, named New York State Ratepayer Protection Nuclear Moratorium Act, would install a two-year halt to state funding and permits for […]
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Advanced Nuclear & SMRs
Nebraska study finds four potential advanced reactor sites
The Nebraska Public Power District (NPPD) recently identified four potential sites in the state for a new advanced reactor. In a May 20 press release, NPPD said that Beatrice, Brownville, Norfolk and Sutherland were the top four communities suited for a new reactor. The four sites identified were as a part of the second phase […]
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Advanced Nuclear & SMRs
Oklo possible recipient of Cold War-era plutonium for fuel
California- based Oklo said this week it has been selected for negotiations with the Department of Energy to potentially receive surplus plutonium for nuclear fuel in reactor projects. This comes after the DOE issued a request for applications in October 2025.for companies interested in being part of the federal Surplus Plutonium Utilization Program. DOE plans […]
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Uranium Enrichment & Fuel Cycle
Antares signs HALEU deal with Urenco
Torrance, Calif.-based Antares Nuclear signed a long-term enrichment services deal with Urenco on May 21 to supply high-assay low-enriched uranium (HALEU) for its new microreactors. Under the agreement, Urenco will provide enrichment services for HALEU to assist with Antares’ planned microreactors deployments across North America and other markets, Antares said in a press release. The […]
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Advanced Nuclear & SMRs
Deep Fission holds initial public offering
Berkeley, Calif.-based Deep Fission launched its initial public offering (IPO) on May 20, saying in a press release it expected the initial IPO price to be between $24 and $26 per share. The nuclear company is targeting a valuation of nearly $1.6 billion, according to an article by Reuters. Deep Fission began the roadshow for […]
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Advanced Nuclear & SMRs
DOE approves startup’s preliminary safety analysis for test microreactor
Houston-based nuclear startup Deployable Energy said last week it received the Department of Energy’s approval for preliminary safety analysis for its microreactor demonstration. Deployable Energy applied to be a part of DOE’s reactor pilot program but was not one of the 10 companies chosen in August 2025. But the nuclear startup was selected under DOE’s […]
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Advanced Nuclear & SMRs
DOE approves startup’s preliminary safety analysis for test microreactor
Houston-based nuclear startup Deployable Energy said last week it received the Department of Energy’s approval for preliminary safety analysis for its microreactor demonstration. Deployable Energy applied to be a part of DOE’s reactor pilot program but was not one of the 10 companies chosen in August 2025. But the nuclear startup was selected under DOE’s […]
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Uranium Enrichment & Fuel Cycle
Antares signs HALEU deal with Urenco
Torrance, Calif.-based Antares Nuclear signed a long-term enrichment services deal with Urenco on May 21 to supply high-assay low-enriched uranium (HALEU) for its new microreactors. Under the agreement, Urenco will provide enrichment services for HALEU to assist with Antares’ planned microreactors deployments across North America and other markets, Antares said in a press release. The […]
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Advanced Nuclear & SMRs
Deep Fission holds initial public offering
Berkeley, Calif.-based Deep Fission launched its initial public offering (IPO) on May 20, saying in a press release it expected the initial IPO price to be between $24 and $26 per share. The nuclear company is targeting a valuation of nearly $1.6 billion, according to an article by Reuters. Deep Fission began the roadshow for […]
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Advanced Nuclear & SMRs
Oklo possible recipient of Cold War-era plutonium for fuel
California- based Oklo said Tuesday it has been selected for negotiations with the Department of Energy to potentially receive surplus plutonium for nuclear fuel in reactor projects. This comes after the DOE issued a request for applications in October 2025.for companies interested in being part of the federal Surplus Plutonium Utilization Program. DOE plans to […]




