Taishan 1, worlds first EPR connected to the grid

On the 29 June at 17:59 local time, Taishan 1 reactor located in China became the first EPR (European Pressurised Reactor) reactor in the world to be successfully connected to the grid.

Taishan 1 has been connected to the grid
Taishan 1 has been connected to the grid

Taishan is the largest cooperative energy project between China and France. It is operated by TNPJVC, a joint venture established between CGN (51%), EDF (30%) and the provincial Chinese electricity company Yuedian (19%). The construction of Taishan 1 began in 2009, whilst that of Taishan 2 began in 2010. These two units were respectively the third and fourth EPR reactors to have started being built worldwide.

On the 10 April, following the completion of preparatory work and testing phases, China’s Ministry of Ecology and Environment granted Taishan 1 permission to load the reactor with fuel. Fuelling operations commenced on the very same day. The first chain reaction in reactor no. 1 took place on the 6th of June and on the 29 June, main-generator and grid-connection tests were successfully completed.

Following the unit’s first connection to the grid, the reactor will undergo a period of gradual power-up tests. Once the reactor has passed all these tests, it will then be tested in steady-state conditions at full power. Since the start of construction, the Taishan project has aligned itself with the highest safety and quality standards, which have been monitored throughout its duration.

A number of factors contributed to Taishan 1 being the world’s first EPR to go on line: it has benefited from a longstanding strategic partnership between EDF and CGN, from both partners’ experience in the construction and operation of nuclear power plants, and from the support of leading players in both countries’ nuclear sectors. During the initial stage of the project, Taishan also benefited from the experience of the two European EPR projects (Flamanville and Olkiluoto), which had started being built earlier on.

The EPR design adopted by Taishan nuclear power plant features third-generation nuclear technology, jointly developed by EDF and Framatome. This technology incorporates operating experience and technological improvements spanning the past 40 years of Pressurised Water Reactor operation around the world.

As the world’s leading EPR project, Taishan epitomises the strength of the nuclear partnership between France and China, whilst at the same time providing reactors of similar design around the world with valuable experience in the areas of project management and technological expertise

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Source: NNB Generation company (HPC ltd)