美国最大核能运营商Constellation宣布计划在11座现有核反应堆进行功率提升，预计增加近1吉瓦产能1，同时美国能源部向Vistra授予超过40亿美元贷款，用于支持宾州和俄亥俄州核电站的升级和现代化，增加433兆瓦产能1。这波升级投资规模庞大——Constellation计划投入43亿美元，新增产能足以为约70万户美国家庭供电1。大科技公司的采购承诺成为这些项目的重要推手，Google与Constellation签订20年购电协议，Meta与Vistra签订长期购电协议1。
然而，现有核电站升级的潜力远不足以弥补预期的电力缺口。美国现有核电团队总产能约98吉瓦，通过功率提升预计可增加3吉瓦至8吉瓦产能，其中2.4吉瓦预计在2032年前完成1。相比之下，PJM电网运营商预计到2030年因人工智能需求导致的额外峰值需求约30吉瓦1，这意味着核电功率提升仅能覆盖其中一小部分。Constellation首席执行官Joe Dominguez表示："这些资本密集、劳动密集的项目需要不同的价格点，坦率地说，要高于市场交易价格"1。核电功率提升的历史数据也显示势头放缓——美国核管理委员会在2001至2010年间批准超过80项功率提升，而2011至2020年仅33项1。
Constellation Energy, the nation's largest nuclear operator, announced plans to invest $4.3 billion in power upgrades across eleven existing reactors, potentially adding nearly one gigawatt of capacity to the grid 1. Simultaneously, the U.S. Department of Energy committed over $4.2 billion in loans to Vistra Energy to support modernization and upgrades at nuclear facilities in Pennsylvania and Ohio, which will increase output by 433 megawatts 1. These capacity expansions are largely driven by major technology companies seeking reliable power sources for expanding artificial intelligence data centers. Google has signed a twenty-year power purchase agreement with Constellation, while Meta has committed to a long-term agreement with Vistra, providing the financial incentives necessary to accelerate these projects 1.
The upgraded capacity is substantial but faces significant limitations. The new production from Constellation's initiative would supply approximately 700,000 American households with electricity 1. However, the total potential for power increases across the nation's existing nuclear fleet—estimated between 3 to 8 gigawatts, with 2.4 gigawatts expected to be completed before 2032—falls short of anticipated demand 1. According to the PJM grid operator, artificial intelligence-related electricity demand could generate an additional peak load of roughly 30 gigawatts by 2030, meaning nuclear upgrades alone cannot bridge the gap 1.
Constellation CEO Joe Dominguez acknowledged the economic challenge, stating: "These capital intensive, labor intensive projects require a different price point, frankly higher than what the market is trading" 1. The most recent comparable project involved three reactors at Browns Ferry in Alabama, which increased output by 14 percent between 2018 and 2019 with a $475 million investment 1. The pace of federal approvals for power increases has slowed considerably, with the Nuclear Regulatory Commission authorizing over 80 upgrades between 2001 and 2010, compared to just 33 approvals in the following decade 1.
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