韩国核监管机构于12月30日正式批准 Saeul-3 反应堆的运行。该反应堆的商业启动定于明年，建设于2016年开始。Saeul-3 是韩国首座设计能抵御飞机攻击的反应堆。
韩国核安全保障委员会于12月30日星期二批准了 Saeul-3 反应堆的运行。该决定是在委员会初次会议推迟最终裁决约两周后作出的。Saeul-3 是自主研发的 APR1400 反应堆，位于东南部港口城市蔚山的 Saeul 核电站，建设于2016年开始。
获批后，该机组将进行为期六个月的试运行。它标志着韩国首座设计能抵御飞机攻击的核反应堆，墙体厚度137厘米——比前代型号厚15厘米。该反应堆还具备长达60年的乏燃料储存能力，足以容纳其设计寿命内产生的所有废物。
此前名为 Kori-5，于2022年更名为 Saeul-3。此次批准象征着韩国核技术的进步，并强调了加强的安全措施。商业运营预计将于2026年开始。
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气候部长金成焕1月26日宣布，韩国最迟将在2038年建造两座新型核反应堆，这反映了公众支持以及清洁能源需求日益增长的情况。该计划是涵盖2026-2040年的第12次电力供需基本计划的一部分，继续前届政府通过减少碳排放应对气候变化的举措。
South Korea should be able to launch its first domestically built nuclear-powered submarine in the mid-to-late 2030s, as the United States signaled support following last week's leaders' summit. Deputy Defense Minister Won Chong-dae said progress has been made on the challenging fuel supply issue, paving the way for the project. The government plans to establish an interagency task force for the construction.
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South Korea's defense intelligence agency indicates that North Korea is prepared to conduct its seventh nuclear test promptly if leader Kim Jong-un decides, lawmakers said. The test, using the No. 3 tunnel at Punggye-ri, could happen in a short time and would be the first since 2017. Pyongyang is also intensifying efforts to secure nuclear materials and build warhead manufacturing facilities.
A fifth body was recovered from the rubble of a collapsed boiler tower at a thermal power plant in Ulsan on November 12, 2025. The tower collapsed last Thursday during demolition, trapping seven workers, with two still missing. Search efforts resumed after adjacent towers were demolished for safety.
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朝鲜领导人金正恩将在即将召开的执政党代表大会上公布加强该国核力量的计划，官方媒体周三报道。该宣布紧随周二的一次导弹试射，金正恩称其给敌人带来“剧烈精神痛苦”。劳动党代表大会五年后首次召开，预计将在未来几周举行。
The Trump administration has revised internal Department of Energy (DOE) nuclear safety and security directives that govern a DOE-run pathway for advanced reactor projects, including a pilot program aimed at bringing at least three reactors to “criticality” by July 4, 2026. NPR reports the updated directives were not publicly posted at the time of its review and were shared with companies participating in the program, prompting criticism from former regulators and safety advocates even as DOE says it is cutting unnecessary burden without weakening safety.
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韩国国有韩国水力与核电公司（KHNP）计划在2026年将核电站容量因子提高至89%，创15年来最高水平，以降低电价并满足需求增长，气候部1月13日表示。该举措补充间歇性可再生能源，并确保人工智能和半导体行业日益增长的需求得到稳定供应。