Shimane Nuclear Power Plant

The Shimane Nuclear Power Plant (島根原子力発電所, Shimane genshiryoku hatsudensho, Shimane NPP) is a nuclear power plant located in the town of Kashima-chou in the city of Matsue in Shimane Prefecture. It is owned and operated by the Chūgoku Electric Power Company.

Shimane Nuclear Power Plant
Shimane NPP
Country	Japan
Coordinates	35°32′18″N 132°59′57″E
Status	Suspended, pending reactivation as of 2023
Construction began	July 2, 1970 (1970-07-02)
Commission date	March 29, 1974 (1974-03-29)
Operator	Chugoku Electric Power Company
Nuclear power station
Reactor type	BWR
Cooling source	Sea of Japan
Power generation
Units operational	1 x 820 MW
Units under const.	1 × 1,373 MW
Units decommissioned	1 x 460 MW
Nameplate capacity	820 MW
Capacity factor	0
Annual net output	0 GW·h
External links
Website	www.energia.co.jp/atom/shimane_menu.html
Commons	Related media on Commons

This plant was once said to be the closest nuclear power plant to a prefecture capital. However, on 31 March 2005, the area of Kashima-chou merged with Matsue (it was formerly in the Yatsuka District), making it exactly the same city as the prefecture capital.

New Scientist magazine has reported that, in June 2006, a previously unknown geological fault was identified close to the Shimane Nuclear Power Plant, but it is expected to be years before the plant is strengthened.^[1]

The power plant covers an area of 1.92 square kilometres (470 acres).^[2]

Reactors on site

Name	Reactor type	Commission date	Power rating	Comments
Shimane-1	BWR	29 March 1974	460 MW	To be decommissioned
Shimane-2	BWR	10 February 1989	820 MW	Restarted on 7 December 2024[3]
Shimane-3	ABWR	Under construction	1373 MW	Commissioning due in March 2012, but construction suspended in 2011.[4] METI approved the restart of construction in September 2012.[5]

Aerial view, image: Ministry of Land, Infrastructure, Transport and Tourism of Japan

See also

• Japan portal
• Energy portal
• Nuclear technology portal

• List of nuclear power plants in Japan