San'ao Nuclear Power Plant

The San'ao Nuclear Power Plant (Chinese: 三奥核电站) is a nuclear reactor under construction in the Zhejiang province of eastern China. It is planned to house 6 reactors, at least two of which will be pressurised water reactors.^[2]

San’ao Nuclear Power Plant
Country	China
Location	Wenzhou, Zhejiang[1]
Coordinates	27.202°N 120.513°E / 27.202; 120.513
Construction began	September 2020[1]
Nuclear power station
Reactor type	Hualong One
Power generation
Units planned	2 × 1126 MW
Units under const.	2 × 1126 MW

The plant is expected to produce 52.5 terawatt-hours of energy per year and will supply the larger Yangtze River Delta region.^[3]

Construction

Construction of the plant was authorized in May 2015 by the Chinese government.^[4] The plant is being constructed by the Cangnan Nuclear Power Company, under the aegis of the state-owned China General Nuclear Power Group (CGN).^[3] Construction of the first unit began on 31 December 2020^[5] and construction of the second unit on 30 December 2021.^[3] The first unit is expected to begin operation in 2026, and the second unit in 2027.^[4]

In August 2024, CGN received approval to construct units 3 and 4.^[6]

Reactor data

The San'ao Nuclear Power Plant consists of 6 planned reactors.

Unit	Type	Net Capacity	Gross Capacity	Construction start	Operation start (planned)	Notes
Phase I
San'ao 1	Hualong One	1126 MW	1212 MW	31 December 2020	2026	[7]
San'ao 2	Hualong One	1126 MW	1212 MW	30 December 2021	2027	[8]
Phase II
San'ao 3	Hualong One
San'ao 4	Hualong One

See also

• China portal
• Energy portal
• Nuclear technology portal

• Nuclear power in China