德州工业厂区首座先进核电站获准开建：四台小型反应堆合计最高320兆瓦
美国核管理委员会（NRC）11月9日批准 Dow 与 X-energy 在德州 Seadrift 厂区建设 Long Mott 发电站的建造许可，美国能源部11月13日公布了这一消息。这是美国第一座获准在工业厂区内建造的先进核设施。
这项许可创下三项第一：美国工业厂区首座获准建造的先进核设施、50多年来第一张高温气冷堆建造许可，也是核管理委员会第一次批准球床堆芯设计。项目由能源部先进反应堆示范计划支持，该计划旨在加快先进核反应堆技术在美国的商业部署。
按规划，Long Mott 发电站将部署四台 X-energy 的 Xe-100 小型模块化反应堆，为 Dow 在 Seadrift 的制造业务提供可靠电力与高温蒸汽。每台 Xe-100 设计输出80兆瓦电力或200兆瓦热能，四台合计最高可提供320兆瓦电力，并可为厂区的工业蒸汽需求服务60年。
Xe-100 是高温气冷堆，使用以高丰度低浓铀制成的 TRISO 涂层颗粒燃料，设计上能在超出任何可信事故情景的极端条件下留存放射性物质。X-energy 的全资子公司 TRISO-X 今年9月已在田纳西州 Oak Ridge 完成 TX-1 燃料制造设施的主体施工，该设施将为 Xe-100 生产燃料球。
能源部核能首席副助理部长 Mike Goff 表示，这一里程碑是先进反应堆示范计划向前迈出的重要一步，显示下一代核技术正在走向市场，先进反应堆可以提供可靠电力与工业热能，巩固美国的能源领导地位。
建造许可允许 X-energy 与 Dow 把项目推进到开工准备阶段，包括完成 Xe-100 设计定型、加强长周期部件供应链，并准备向核管理委员会提交运行许可申请。项目目标是在2030年代初首次供能。（来源：美国能源部）
First Advanced Nuclear Plant at a U.S. Industrial Site Approved for Construction in Texas: Four Reactors, Up to 320 Megawatts
The U.S. Nuclear Regulatory Commission (NRC) on November 9 approved a construction permit for Dow and X-energy's proposed Long Mott Generating Station at Dow's Seadrift Operations site in Texas, the U.S. Department of Energy announced on November 13. It is the first advanced nuclear facility authorized for construction at a U.S. industrial site.
The approval marks three firsts: the first advanced nuclear facility authorized for construction at a U.S. industrial site, the first NRC construction permit for a high-temperature gas-cooled reactor in more than 50 years, and the first-ever NRC approval for a pebble-bed core design. The project is supported by the Department of Energy's Advanced Reactor Demonstration Program, which aims to accelerate commercial deployment of advanced nuclear reactor technologies in the United States.
The proposed station would deploy four X-energy Xe-100 small modular reactors to provide reliable electricity and high-temperature steam to Dow's Seadrift manufacturing operations. Each Xe-100 is designed to produce 80 megawatts of electricity or 200 megawatts of thermal energy; together, the four reactors could provide up to 320 megawatts of electricity while supporting the site's industrial steam needs for 60 years.
The Xe-100 is a high-temperature gas-cooled reactor that uses TRISO coated particle fuel made with high-assay, low-enriched uranium, designed to retain radioactive materials under extreme conditions beyond any credible accident scenario. TRISO-X, a wholly owned subsidiary of X-energy, completed vertical construction in September on its TX-1 fuel fabrication facility in Oak Ridge, Tennessee, which will produce fuel pebbles for the Xe-100.
"This milestone marks a significant step forward for the Department of Energy's Advanced Reactor Demonstration Program and our efforts to bring next-generation nuclear technologies to market," said Principal Deputy Assistant Secretary for Nuclear Energy Mike Goff, adding that advanced reactors can deliver reliable power and industrial heat and strengthen American energy leadership.
The construction permit allows X-energy and Dow to advance the project toward construction readiness, including finalizing the Xe-100 design, strengthening the supply chain for long-lead components, and preparing an operating license application for NRC review. The project is targeting initial energy delivery in the early 2030s. (Source: U.S. Department of Energy)
来源：美国能源部
发布：GSM·美国（发布链接）
图片来源：图：Dow 位于德州 Seadrift 厂区的 Long Mott 发电站效果图，厂区内将建四台 Xe-100 小型模块化反应堆。X-energy 提供，美国能源部发布，本图已裁为 16:9。 / Photo: Rendering of the Long Mott Generating Station at Dow's Seadrift site in Texas, with four Xe-100 small modular reactors. Courtesy of X-energy, released by the U.S. Department of Energy, cropped to 16:9.
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