Four 1000 MWe VVER pressurized water reactors have been planned at the Rostov site since the early 1980s. Construction of units 1 and 2 began promptly, but progress faltered. Units 1 and 2 eventually entered commercial operation in March 2001 and October 2010, respectively. Unit 3 was connected to the grid in December 2014.
Unit 3 of the Tianwan nuclear power plant in China's Jiangsu province was connected to the grid on 30 December, 2017. The Russian-supplied VVER-1000 is scheduled to enter commercial operation later this year.
Tianwan 3 and 4 are AES-91 VVER-1000 units designed by Gidropress and supplied by Russian state nuclear company Rosatom. AtomStroyExport is the main contractor, supplying the nuclear island. First concrete for unit 3 was poured in December 2012, while construction of unit 4 began in September 2013. Two similar VVER-1000 reactors (units 1 and 2) began operating at the site in 2007.