On October 16, the world’s first commercial semi-underground small modular reactor (SMR) Linglong One (ACP100), developed by China National Nuclear Corporation, passed the cold-state functional test of its primary circuit in Changjiang, South China's Hainan Province.
This achievement highlights China’s expertise in designing new nuclear energy systems, manufacturing high-end equipment, and coordinating complex projects. This also lays a solid foundation for the subsequent hot-state test, reactor loading, and commercial operation.
Linglong One (ACP100), the world’s first commercial small modular reactor, passed the cold-state functional test of its primary circuit in Changjiang, South China's Hainan Province. [Photo/sasac.gov.cn]
ACP100 is the world’s first commercial semi-underground SMR that has passed the safety review of the International Atomic Energy Agency (IAEA).
The cold-state functional test is a large-scale commissioning test for nuclear power plants, aiming to verify the performance of the primary circuit system, equipment and their auxiliary pipelines under high pressure, and to conduct tests on the main system and auxiliary systems under various pressure platforms. The test’s success indicates that the primary circuit pressure boundary is intact and sealed, laying a solid foundation for the subsequent safe and stable operation of the unit.
It is expected that the ACP100’s operation will produce one billion kilowatt-hours of electricity, which can meet the demand of 526,000 households in Hainan Province and reduce carbon dioxide emissions by approximately 880,000 tons per year, equivalent to planting 7.5 million trees annually.
(Executive editor: Yuan Ting)
