Total megawatts of U.S. nuclear capacity offline right now (units in outages plus reduced power).
10,884
MW Offline
Percentage of total fleet capacity currently online and generating power.
88.8%
Fleet Online
Refueling outages scheduled for this season. Each one is a hiring window.
24
Fall 2026 Outages
Units currently at 0% power (likely in an outage or shutdown).
10
Units Offline
Units operating between 1-99% power (excluding known startups or coastdowns).
0
Reduced Power
Units nearing the end of their fuel cycle, gradually lowering power before an outage.
5
Coastdown
Units increasing power following an outage or scram.
0
Starting Up
Units on a qualifying Breaker-to-Breaker run: continuous operation exceeding their cycle-adjusted threshold with no trips to 0% power.
9
Breaker-to-Breaker
Nuclear NewsNEW This month in Oak RidgeSeptember Energycast; Demolition begins on former labs at ORNL; and more Cleanup crews at the Oak Ridge Reservation have started demolishing contaminated facilities at the Oak Ridge National Laboratory, including aging structures along Isotope Row. At the Y-12 National Security Complex, workers are tearing down the Old Steam Plant following the recent completion of the Alpha-2 facility demolition. These environmental management projects aim to eliminate legacy hazards and clear space for site modernization. In this episode, we look back at OREM’s biggest accomplishments of Fiscal Year 2026. Meanwhile, cleanup crews are taking down the Old Steam Plant at Y-12, removing hazards and clearing space for modernization. We also head to Washington, D.C., for highlights from the National Cleanup Wo...
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Nuclear NewsNEW Large upgrade planned at Calvert Cliffs after power deal signed with AmazonConstellation plans to invest three billion dollars to improve the Calvert Cliffs facility. The engineering work will add approximately 190 megawatts of electrical output to the regional grid. Funding for the capital project is secured through a twenty-year power purchase agreement with Amazon. The long-term contract provides financial stability required to pursue operating license renewals with the Nuclear Regulatory Commission. Current licenses for the twin reactor facility expire in 2034 and 2036. Similar commercial agreements between technology firms and plant operators are increasingly fu...Core Content
Core Content
Nuclear NewsNEW Some Idaho officials say proposed nuclear waste shipments could threaten Eastern Snake Plain AquiferState officials and former nuclear workers warn that a proposed Department of Energy innovation campus could force Idaho to accept tens of thousands of tons of spent nuclear fuel. Critics argue the agreement undermines the 1995 Settlement Agreement designed to prevent the state from becoming a commercial waste repository. The debate highlights ongoing tensions between federal nuclear initiatives and state environmental protections, specifically regarding threats to the Eastern Snake Plain Aquifer. Stakeholders remain divided over whether economic development benefits outweigh long-term environ...Core Content
Core Content
Nuclear NewsNEW Redesigning Steam Turbines for the SMR EraManufacturers are adapting steam turbine designs for small modular reactors by combining fossil and nuclear engineering practices. These new configurations must handle exhaust moisture levels exceeding 15 percent while fitting into compact, factory-preassembled modules designed for future nuclear energy facilities. Operating in wetter steam environments increases the risk of component degradation, including water droplet erosion and stress corrosion cracking. Engineers use specialized material selections, advanced blading geometries, and internal water extraction systems to protect turbine int...Core Content
Core Content
Nuclear NewsNEW Deployable Energy selected to test its nuclear battery at DOMEIdaho National Laboratory will host a 2027 test of the Nuclear Unity Battery, a transportable microreactor designed by Deployable Energy. The self-funded project will evaluate system performance, safety, and operational controls inside the DOME testbed. This campaign allows the developer to gather performance data and advance its commercialization timeline. (IDAHO FALLS, IDAHO) – The U.S. Department of Energy’s National Reactor Innovation Center selected Deployable Energy to test the company’s nuclear battery technology inside the Demonstration of Microreactor Experiments, or DOME, testbed at...Core Content
Core Content
Nuclear NewsNEW NRC grants review of Homestake Mining’s groundwater ACL applicationThe Nuclear Regulatory Commission has agreed to review an amended application from Homestake Mining Company. The company seeks alternative concentration limits and revised groundwater treatment options for its former uranium milling site near Milan, New Mexico. The agency expects to complete its technical evaluation by September 2027. The review follows a previous denial in 2023 that cited insufficient property ownership data and technical details. This long-running remediation project stems from unlined uranium tailings impoundments used between 1958 and 1990. The current application addresse...Core Content
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Nuclear NewsNEW Oak Ridge radiochemist tweaks techniques to extract radioisotopes for researchResearchers at Oak Ridge National Laboratory have updated chemical separation procedures to extract rare radioisotopes as byproducts of californium-252 production. The revised methods utilize additional chromatography columns and alternative extraction resins to increase the purity and recovery rates of berkelium, einsteinium, and fermium. These process enhancements also reduce radiation exposure for laboratory personnel handling the heavy elements. Researchers at Oak Ridge National Laboratory are developing techniques to improve the purification of highly valued radioisotopes that are byprodu...Core Content
Core ContentNuclear NewsNEW NRC roundup: Crane EA/FONSI; new Agreement StateThe Nuclear Regulatory Commission finalized an environmental assessment and finding of no significant impact for the Crane nuclear power plant restart project in Pennsylvania. Additionally, federal regulators approved Indiana as the nation's forty-first Agreement State to oversee specific radioactive materials. The final environmental decision allows Constellation to advance the plant return-to-service timeline without completing a full environmental impact statement. Meanwhile, Indiana assumes regulatory authority over roughly two hundred radioactive material licenses spanning medical, academ...Core Content
Core Content
Outage NewsNEW Susquehanna 1 trips offline, unscheduled outage underwaySusquehanna 1 began a forced short unscheduled outage on September 29, 2026. The event ended the 1,247-MW General Electric BWR/4 unit's unscheduled outage-free streak at 317 days. Operator TalenEnergy Susquehanna, which operates one other U.S. nuclear unit, logged one forced outage so far in 2026 compared to two in all of 2025. The plant has been in commercial operation since 1983. Across the broader fleet today, 94 units operate at an 88.9 capacity factor, with nine reactors in refueling and one in unscheduled outages. BERWICK, PA. Susquehanna 1 dropped offline on Sep 29, 2026 , beginning an unscheduled outage. The NRC has not yet issued an event notification for this trip; a follow-up reply will be posted here if one is filed. This is the first unscheduled outage of 2026 for the unit, wh...Core Content
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Outage NewsNEW Cooper begins Fall 2026 refueling outageCooper began a routine refueling outage on September 28, 2026, starting two days later than its scheduled September 26 start date. The 772-megawatt General Electric boiling water reactor entered the refueling window after running about 100 percent of its typical 647-day operating cycle. Operated by Nebraska Public Power District with commercial operation since 1974, the plant maintained a 1379-day unscheduled-outage-free streak going into the event. The unit posted a 99.4 percent capacity factor during its prior cycle in 2025. Across the United States fleet, 94 units operated at a 90.1 percent...Core Content
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Outage NewsNEW Byron 2 begins Fall 2026 refueling outageByron Unit 2 began a scheduled refueling outage on September 28, 2026, starting precisely on its planned date. The 1,136-MW Westinghouse four-loop pressurized water reactor entered the fall maintenance period following a 3637-day unscheduled-outage-free streak. Operated by Constellation Nuclear, the unit had run about 94 percent of its typical 547-day operating cycle and posted a 93.9 percent capacity factor during the 2025 prior cycle. Across the broader U.S. fleet, 94 units operated at a 90.1 percent capacity factor with nine units in refueling. BYRON, IL. Byron 2 entered a refueling outage...Core Content
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History & TriviaNEW Fewer Than 10 American Veterans Who Saw Hiroshima and Nagasaki Are Still Alive. Their Stories Are DiFewer than 10 American service members who entered Hiroshima and Nagasaki as occupation troops in 1945 remain alive. These aging veterans are the last direct witnesses to the immediate human and structural devastation caused by the first wartime use of atomic weapons. For decades, government secrecy orders prevented these personnel from discussing their radiation exposure and observations. Preserving their firsthand accounts provides valuable historical documentation regarding the long-term health effects of radiation on military personnel and the realities of nuclear warfare. American occupation troops witnessed Hiroshima and Nagasaki weeks after the atomic bombs. Fewer than 10 are believed to remain alive. Less than 10 American veterans who saw the Japanese cities after 1945 bombings are...Core Content
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GeneralNEW Best Company you have worked for(priviate or govt)RP- what company(s) 1 do what they say(2)pay and per diem paid without hassle (3) have the best pay rates?W/ DZ / RSCS
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History & TriviaThis Hidden City In Tennessee Held One Of The World’s Most Closely-Guarded SecretsOak Ridge, Tennessee transformed rapidly from a rural farming town into a massive, classified site for the Manhattan Project during World War II. Thousands of workers labored in secrecy to produce material for the atomic weapons that ultimately brought an end to the global conflict. The historic site established strict security protocols and massive industrial infrastructure that laid the groundwork for modern nuclear research facilities. Today, the location preserves its wartime heritage while continuing to contribute to advancements in science, technology, and energy research within the nucl...Core Content
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