Search Results

Radiant Microreactor Safety Analysis Report Approved by U.S. Department of Energy

Recently, U.S. microreactor developer Radiant Industries (Radiant) announced that the Safety Analysis Report (DSA) for its Kaleidos microreactor has been formally approved by the U.S. Department of Energy (DOE), granting permission for full-power operation. This important milestone marks the company's formal entry into the operational maturity review phase and its move to Idaho National Laboratory (INL) for comprehensive verification testing. This approval enables Radiant to successfully transition from theoretical design to a comprehensive multi-phase testing stage. Unlike conventional criticality tests that merely verify whether a controlled chain reaction can be maintained, this...

2026-11-07

U.S. Department of Energy Approves Antares Mark-1 Microreactor Nuclear Safety Design Agreement

Recently, the U.S. Department of Energy (DOE) formally approved the Nuclear Safety Design Agreement (NSDA) for the Mark-1 microreactor of nuclear energy startup Antares Nuclear (Antares), establishing official safety standards, design requirements, and regulatory framework for the reactor's subsequent construction and testing phases. It is reported that the Mark-1 is designed to achieve continuous power output, with its design integrating a full-scale core and TRISO fuel, and equipped with a nitrogen closed-cycle Brayton power conversion system. Prior to this, its predecessor Mark-0 achieved zero-power criticality in June 2026, successfully validating the core physics characteristics. With the approval of the NSDA, Antares is expected to...

2026-11-06

U.S. Department of Energy Allocates $5 Billion to Upgrade Illinois Nuclear Power Plants

Recently, the U.S. Department of Energy (DOE) announced the provision of $5 billion in federal earmarked funding, focused on equipment modernization and power uprates at 8 nuclear power plants in Illinois, Maryland, and Pennsylvania. It is reported that the funded projects cover six clean energy centers in Illinois—Braidwood, Byron, Clinton, Dresden, LaSalle, and Quad Cities—as well as the Calvert Cliffs and Limerick nuclear power plants in other states. Among them, the 11 reactors within Illinois will receive...

2026-11-02

U.S. Department of Energy Provides $5 Billion Loan to Support Constellation Energy's 1.1 GW Nuclear Power Uprate

Recently, the U.S. Department of Energy (DOE) announced a conditional loan commitment of up to $5 billion to Constellation Energy, the largest nuclear power operator in the United States, to fund large-scale upgrades and modernization of its 8 nuclear power plants (with a total of 15 operating reactors) located in Illinois, Maryland, and Pennsylvania. It is reported that this massive financing is aimed at improving thermal efficiency and power output through equipment modernization, and is expected to add nearly 1.1 GW (1,100 MW) of clean baseload generation capacity to the existing U.S. nuclear fleet. The affected projects cover 8 nuclear power plants including Braidwood, Byron, Calvert Cliffs, Clinton, Dresden, LaSalle, Quad Cities, and Limerick...

2026-10-28

NASA and the U.S. Department of Energy Sign Memorandum of Understanding to Accelerate Space Nuclear Power and Propulsion Technologies

The National Aeronautics and Space Administration (NASA) and the U.S. Department of Energy (DOE) formally signed a landmark Memorandum of Understanding (MOU) during a summit hosted by the White House Office of Science and Technology Policy (OSTP), establishing a comprehensive framework for cooperation between the two parties in the fields of space nuclear power and nuclear propulsion systems, aimed at replacing and revising two previously reached related agreements. The memorandum is titled "Accelerating American Leadership in Space Nuclear Power and Propulsion,"...

2026-10-18

ABS and U.S. Department of Energy Sign Memorandum of Understanding to Comprehensively Advance Maritime Applications of Commercial Nuclear Energy Technology

Recently, the American Bureau of Shipping (ABS) and the Office of Nuclear Energy of the U.S. Department of Energy (DOE) formally signed a Memorandum of Understanding (MoU) aimed at jointly advancing the deep application and industrial deployment of commercial nuclear energy technology in the maritime sector. Under the agreement, both parties will jointly manage the newly established Maritime Nuclear Applications Group (MNAG), providing comprehensive support for projects at the technical, regulatory, economic, and policy levels. It is understood that this collaboration covers floating platform nuclear energy systems, nuclear-powered commercial vessels, and the ports, shipyards, and industrial bases required to support the construction, operation, and maintenance of...

2026-10-15

U.S. Department of Energy Approves Last Energy Microreactor Safety Analysis Report: Texas A&M University PWR-5 Demonstration Reactor Enters Final Pre-Operational Review

The U.S. Department of Energy (DOE) has formally approved the Documented Safety Analysis (DSA) submitted by nuclear startup Last Energy for its proposed test microreactor at the Texas A&M-RELLIS campus (Texas A&M-RELLIS). This approval marks the official transition of the microreactor demonstration project into the Operational Readiness Review phase, which is also the final key regulatory step before obtaining authorization for initial criticality and formally commencing operation. The Documented Safety Analysis is the most central and detailed final safety assessment document in the U.S. Department of Energy's approval framework, following the Preliminary Safety Analysis Document approved in May 2026...

2026-10-12

U.S. Department of Energy Deputy Secretary Visits Three Mile Island Nuclear Plant, Targeting Official Restart and Grid Connection in 2027

The Deputy Secretary of the U.S. Department of Energy (DOE) recently conducted an on-site inspection of Unit 1 at the Three Mile Island Nuclear Plant in Pennsylvania. As the core platform for the plant's restart plan, the renamed Crane Clean Energy Center is currently pushing forward engineering preparations at full speed, with the goal of officially restarting and connecting to the grid in 2027. Facing rapidly rising baseload power demand in Pennsylvania and across the entire Mid-Atlantic region, the restart project has secured more than $1 billion in federal dedicated investment and policy-based financial support. Three Mile Island Unit 1 was retired early in 2019 due to insufficient market economics under the impact of natural gas power generation at the time...

2026-10-11

Oklo's Groves Isotope Test Reactor Achieves First Criticality, Fifth Reactor in U.S. Department of Energy Test Reactor Program Successfully Started

The Groves Isotope Test Reactor under Oklo, an advanced nuclear fission company in the United States, has officially achieved first criticality. The U.S. Department of Energy (DOE) confirmed that the reactor successfully reached criticality at 9:19 p.m. Eastern Time on Wednesday at the Groves site in Lockhart, Texas, becoming the fifth advanced test reactor to achieve criticality under the DOE's dedicated authorization and regulatory pathway. The Groves Isotope Test Reactor has a thermal power of 15 megawatts (MWt) and adopts an atmospheric-pressure water-cooled pool-type reactor design. It is led by Oklo Isotopes, a subsidiary of Oklo focused on medical and industrial isotope production...

2026-10-11

NASA and U.S. Department of Energy Sign Memorandum of Understanding: Opening a New Era in Space Nuclear Energy Exploration

According to reports, the National Aeronautics and Space Administration (NASA) and the U.S. Department of Energy (DOE) signed a Memorandum of Understanding (MoU) on October 8, 2026, at the Golden Age Summit held at the Donald J. Trump Institute for Peace in Washington, D.C., to advance new nuclear technologies for space exploration. NASA Administrator Jared Isaacman and Energy Secretary Chris Wright attended the signing ceremony. It is understood that the memorandum aims to strengthen the two agencies' cooperation in nuclear technology development...

2026-10-09

U.S. Department of Energy Plans to Provide Vistra with $4.2 Billion Conditional Loan to Support Power Uprates and Life Extensions at Operating Nuclear Plants: Safeguarding Nearly 4 GW of Baseload Power to Meet Surging Electricity Demand from AI Data Centers

The U.S. Department of Energy (DOE) announced a conditional loan commitment of up to $4.2 billion to Vistra Corp., an independent power producer headquartered in Irving, Texas. The funds will be dedicated to financing power uprates and equipment modernization projects at three of Vistra's nuclear power plants located in Pennsylvania and Ohio——Beaver Valley, Davis-Besse, and Perry——to meet the explosive growth in electricity demand driven by artificial intelligence and data centers. According to the project plan, this technical upgrade project is expected to add a cumulative 433 megawatts (MW) of nuclear generating capacity, and...

2026-10-08

Laser Fusion Startup Xcimer Receives Up to $30.5 Million in Milestone-Based Funding from U.S. Department of Energy

U.S. excimer laser inertial confinement fusion company Xcimer Energy recently announced that it has reached an agreement with the U.S. Department of Energy (DOE) to receive up to $30.5 million in funding support through the DOE's Milestone-based Fusion Development Program. The funds will be disbursed in installments based on the progress achieved toward predetermined R&D milestones. Previously, in June 2026, the U.S. Department of Energy formally approved the preliminary conceptual design and technology development roadmap milestones for Xcimer's fusion power plant architecture, Athena. The Athena architecture is specifically designed for continuous operation, industrial-scale capacity, and a self-sustaining fuel cycle...

2026-10-08

U.S. Department of Energy Commits $4.2 Billion Loan to Support Vistra Nuclear Plant Expansion and Upgrade

On October 5, 2026, the Office of Energy Dominance Financing of the U.S. Department of Energy (DOE) announced a commitment to provide a conditional loan of up to $4.2 billion to fund the expansion and modernization of nuclear power plants owned by Vistra Corp. in Pennsylvania and Ohio. It is understood that this investment aims to implement U.S. President Donald Trump's executive order on revitalizing the nuclear industrial base. U.S. Secretary of Energy Chris Wright stated that by increasing the power generation of existing nuclear power plants, affordable...

2026-10-06

U.S. Department of Energy Plans to Invest Up to $2 Billion in Iowa Nuclear Energy Facility

The U.S. Department of Energy stated that it plans to provide up to $2 billion in funding support to nuclear facilities in the Palo area of Iowa to formally launch the nuclear energy project. This commitment was formally proposed after the nuclear energy research working group led by Iowa Governor Kim Reynolds completed its related work, marking a substantive step forward for the state in advancing nuclear energy development. It is understood that the main nuclear facility in the Palo area is the Palo Verde Generating Station located in Arizona, United States, situated in Maricopa County, Arizona, approximately 5...

2026-09-14

West Virginia Joins Nuclear Lifecycle Innovation Center Program

On September 9, 2026, West Virginia Governor Patrick Morrisey announced that the state has signed a Memorandum of Understanding with the U.S. Department of Energy (DOE) to join the Nuclear Lifecycle Innovation Center (NLIC) program, becoming the sixth participating state. Earlier this year, the DOE had identified Idaho, Tennessee, Utah, Oklahoma, and Louisiana as potential host states. With West Virginia's addition, the state will work with the DOE to evaluate potential sites and advance possible host agreements. According to reports, the NLIC program aims to support activities across the full nuclear fuel lifecycle...

2026-09-09