01.09.2011
Tianwan NPP (PRC) constructed by JSC Atomstroyexport, the Company of the State Corporation Rosatom, generated 10 bln KW-h since the beginning of 2011. For the same period in 2010 the power generation at TNPP amounted to 9,8 bln KW-h.
For the period of 1.01 – 31.08.2011 units 1 and 2 of Tianwan NPP were distinguished by accident-free operation at the nominal power level and by the absence of unplanned shut-downs. High reliability of the plant is proved from the very beginning of its commercial operation. In August 2010 at the Symposium held in Lianyungang of those who took part in Tianwan NPP construction, the Chinese side declared: a record on the duration of non-stop operation within the first fuel cycle was made among the plants operated in China.
The first stage of Tianwan NPP (units 1, 2) was constructed under the Intergovernmental agreement between RF and PRC on cooperation in power plant construction in PRC. The facility was put in operation in 2007. On the 15th of April in 2010 final acceptance certificates of units 1 and 2 of Tianwan NPP were signed. With this the Chinese customer confirmed that the general contractor – JSC Atomstroyexport – performed all the set tasks in full scope and in quality manner. Tianwan NPP operates with good performance indicators and has the advanced and processable safety systems. Tianwan NPP project realization gave JSC Atomstroyexport the most important references: today Atomstroyexport is the only company in the world having active power units of new generation.
The first stage of Tianwan NPP includes two power units with VVER reactors with electric power of 1060 МW each. From the technical point of view Tianwan NPP is a unique combination of the best Russian and European technologies and it complies with all international norms on nuclear and radiation safety. The reactor building is covered with double containment: the inner tight containment excludes radiation penetration to the environment, the outer one is meant for reactor protection against unfavorable influences from the environment. The “catcher” is installed for retention and cooling down of the melt core. It is provided for the melt core to fill the “catcher” in case of emergency and does not destroy the basement under the vessel and the building of the reactor. The “catcher” has the original technical solutions, which do not have any analogues in the world practice of NPP construction. China became the first country having such device. The “catcher” project developed by the Russian engineers was successfully tested by the Russian and Chinese regulatory authorities and was approved by IAEA. Four-channel structure of safety systems is implemented at the plant, the advanced digital I&C systems delivered by Siemens, are in operation.
