New Build

China / Tianwan-5 Nuclear Power Plant Connected To Grid

By David Dalton
11 August 2020

Unit will now undergo key pre-operational tests, says CNNC
Tianwan-5 Nuclear Power Plant Connected To Grid
Fuel loading at the Tianwan-5 reactor in June. Photo courtesy CNNC.
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.

Fuel loading at Tianwan-5 took place on 9 July, marking the first nuclear power unit under construction in China to accomplish fuel loading this year.

Tianwan-5 is a domestically developed CNP-1000 design. It is seen as a Generation II+ design and a precursor to Generation III designs.

Another unit of the same design, Tianwan-6, is also under construction at the site.

Construction of Tianwan-5 began in December and of Tianwan-6 in September 2016.

There are also four Russia-procured VVER-1000 nuclear units in commercial operation at Tianwan.

Pen Use this content