There are likely five damaged fuel rods in the 1,750 MW Taishan-1 EPR in China, which have led to an increase in radiation levels within the reactor coolant, the Chinese Ministry of Ecology and Environment said in a statement June 16, providing the first official explanation for the nuclear reactor’s recent technical problems. French power company EDF, a minority owner of the Taishan plant, said in a statement June 14 that Taishan-1 had seen an increase in the concentration of radioactive gases in its primary circuit. The environment ministry added that “at present, the radiation activity of [Taishan-1’s] reactor circuit coolant … is still within the scope of allowing stable operation as stipulated in the technical specifications for the operation of the nuclear power plant.” The meeting of technical specifications, which define the licensed operating parameters or a reactor, and operational safety of the Taishan plant are guaranteed, the ministry added. It also said the increase in radioactivity in Taishan-1’s primary circuit is related to fuel-rod damage.
S&P 16th June 2021 read more »