Tianwan Nuclear Power Plant is a large nuclear power station in Lianyungang prefecture level city, Jiangsu province, People's Republic of China. It is considered to be the largest nuclear plant on mainland China. It is located on the coast of the Yellow Sea approximately 30 kilometers east of Lianyungang proper.

The Tianwan Nuclear Power Plant of two reactor units each rated at 1,000 MW capacity and constructed by Russia's Atomstroyexport. The first reactor began full operations in 2006 and the second in 2007.

Construction commenced on 20 October 1999 for the first unit, and on 20 October 2000 for the second reactor unit. The first reactor went critical on 20 December 2005. Construction of the second reactor finished in May 2007 and commercial operation began in August.

On 23 November 2010, Jiangsu Nuclear Power Corporation signed a contract with Atomstroyexport according to which Atomstroyexport will supply 1060 MWe VVER-1000 reactors for units 3 and 4.

Both units use VVER pressurized water reactor (PWR) technology supplied from Russia. Together they cost approximately US$3.3 billion. The units are the Russian standard reactor type VVER-1000/392 (also carries the designation of VVER-1000/428) adapted specifically for China. This reactor version was equipped with Siemens control systems and received additional protection from earthquakes.

Tianwan Nuclear Power Plant
Country People's Republic of China
Status Operational
Construction began 1999
Commission date May 17, 2006
Owner(s) Jiangsu Nuclear Power Corporation

Reactor information
Reactors operational 2 x 1000
Reactors planned 4 x 1000 MW
2 x 1200 MW
Reactor type(s) PWR
Reactor supplier(s) Atomstroyexport

Power generation information
Annual generation 1,235 GW·h
Net generation 1,235 GW·h

Nuclear Reactors

The Tianwan nuclear power plant has two operating units and six planned future reactors:

Unit Reactortype Net
Tianwan-1 VVER-1000/428 (AES-91) 933 MW 1,000 MW 17.05.2007
Tianwan-2 VVER-1000/428 (AES-91) 933 MW 1,000 MW 16.08.2007
Tianwan-3 VVER-1000 1,000 MW
Tianwan-4 VVER-1000 1,000 MW
Tianwan-5 VVER-1000 1,000 MW
Tianwan-6 VVER-1000 1,000 MW
Tianwan-7 VVER-1200
1,200 MW
Tianwan-8 VVER-1200
1,200 MW

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