Will Wade 报道：美国一家监管机构即将批准田纳西河流域管理局（TVA）建设小型核反应堆的提案，这标志着核裂变行业取得重要进展。
By Will Wade A US regulator is set to approve Tennessee Valley Authority’s proposal to build a small nuclear reactor in an important sign of progress for the fission industry.
据公司发布的媒体通报，核管理委员会（NRC）预计将于周二向TVA发放建设许可，允许其在田纳西州克林奇河址（位于诺克斯维尔以西）建设一套300兆瓦的系统。
The Nuclear Regulatory Commission is expected to issue a construction permit Tuesday for TVA to build a 300-megawatt system at its Clinch River site in Tennessee, west of Knoxville, according to a media alert from the company.
TVA正考虑建设多达四座来自GE Vernova Hitachi Nuclear Energy的BWRX-300反应堆，但此许可仅针对首座系统，这证实了彭博新闻社上周的报道。
TVA is considering as many as four of the BWRX-300 reactors from GE Vernova Hitachi Nuclear Energy, though this permit is only for the initial system, confirming a report last week by Bloomberg News.
GE Vernova Hitachi是数十家开发新型小型反应堆的公司之一，这些反应堆预计将在工厂制造并在现场组装，这种方法旨在降低成本和缩短建设周期。然而，这一理念尚未得到验证，中国和俄罗斯之外仅有两座在建。
GE Vernova Hitachi is one of dozens of companies developing new, smaller reactors that are expected to be produced in factories and assembled on-site, an approach aimed at reducing costs and construction time. However, the idea remains unproven, with only two under construction outside of China or Russia.
这是美国颁发的第二份小型商用模块化反应堆建设许可，此前TerraPower LLC于3月获得怀俄明州项目的批准。
This is the second US construction permit for a small commercial modular reactor, after TerraPower LLC received approval in March for a project in Wyoming.
在加拿大，安大略发电公司去年开始建设全球首座BWRX-300系统。
In Canada, Ontario Power Generation began construction last year on the world’s first BWRX-300 system.