Unit 5 of the Tianwan nuclear power station in Jiangsu province, eastern China, has been connected to the grid for the first time, China National Nuclear Corporation announced.
The 1,000-MW pressurised water reactor achieved the milestone at 19:52 local time on 8 August, CNNC said.
The unit, which achieved first criticality on 27 July, will now undergo tests at 30%, 50% and 100% of its generating capacity before entering a full power demonstration operating assessment, CNNC said. During this assessment stage, performance indicators will need to meet design standards and the requirements of the power grid, which will indicate that the unit has achieved formal commercial operating conditions.