China’s Tianwan-5 attains first criticality

Unit 5 at the Tianwan nuclear plant. Photo: CNNC

Unit 5 at the Tianwan nuclear power plant completed its full-power continuous operation assessment on September 8, meeting the conditions for commercial operation, China National Nuclear Corporation reported. The domestically designed ACPR-1000 pressurized water reactor will become CNNC’s 22nd reactor to provide power to China’s electric grid, raising the CNNC fleet’s installed capacity from 19.112 million kilowatts to 20.230 million, according to the company.

Tianwan-5 construction officially commenced on December 27, 2015, with the pouring of safety-related concrete. China’s National Nuclear Safety Administration issued a 40-year operating license for the unit on July 7 of this year, and two days later CNNC announced that first fuel loading had been completed. The reactor achieved initial criticality on July 27 and connected to the grid on August 8. Once commercial operation of the unit has begun, Tianwan will boast five operating reactors.

Finnish energy company Fortum Power and Heat Oy has initiated an environmental impact assessment procedure for the two reactors at its Loviisa nuclear power plant with the aim of operating the units for 20 years beyond their current license expiration dates of 2027 (for Unit 1) and 2030 (for Unit 2).

The Akkuyu-1 reactor pressure vessel. Photo: Atomenergomash

Atommash has completed hydraulic testing of the reactor pressure vessel for Unit 1 at the Akkuyu nuclear power plant, the four-unit facility currently under construction on the Mediterranean coast in southern Turkey. Atommash is part of Atomenergomash, the engineering division of Rosatom, which is Russia’s state atomic energy agency.

Leningrad nuclear plant. Photo: Rosenergoatom

Preparations have begun for the construction of four nuclear reactors in Russia—two VVER-1200 units at the Leningrad plant and two VVER-TOI units near the Smolensk plant, according to Rosenergoatom, a division of Russia’s state-owned atomic energy corporation Rosatom.

Rosenergoatom operates all of Russia’s nuclear power facilities. Authorization to move forward with the new-build projects was signed by Alexey Likhachev, Rosatom’s director general.