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Ikata Nuclear Power Plant
The Ikata NPP, August 2006
The Ikata NPP, August 2006
Country Japan
Operator Shikoku Electric Power Company
Built 1971
Start of commercial operation September 30, 1977
Reactors active 3 (2,022 MW)
Total power generation in 2006 12,925 GW·h
Average annual generation (last 5 yrs) 14,019 GW·h
Net generation 281,159 GW·h
Other details
As of July 25, 2007
Another view of the plant.

The Ikata Nuclear Power Plant (伊方発電所 Ikata hatsudensho ?, Ikata NPP) is a nuclear power plant in the town of Ikata in the Nishiuwa District in Ehime Prefecture, Japan. It is the only nuclear plant on the island of Shikoku. It is owned and operated by the Shikoku Electric Power Company.


Reactors on Site

Unit Reactor Type Capacity First Criticality Type
Ikata - 1 PWR 566 MW September 30, 1977 Mitsubishi 2-loop plant
Ikata - 2 PWR 566 MW March 19, 1982 Mitsubishi 2-loop plant
Ikata - 3 PWR 890 MW December 15, 1994 Mitsubishi/Westinghouse 3-loop plant[1]
Energy production by unit of the site, showing fairly consistent performance.

Important Events



  • On March 3, 2004 there was a coolant leak in Unit 3.

Technical Achievements

  • On August 13, 2003 The maximum burnup for spent fuel was changed from 48,000 MWd/ton to 55,000 MWd/ton.
  • Ikata - 1 became the world's first all-in-one extraction of the core internals in a PWR. Mitsubishi Heavy Industries did replacement work of the upper and lower internals in order to accommodate more control rods and allow for higher fuel burnup.[2]
  • Ikata - 3 loaded a partial MOX fuel core for the cycle beginning February 24, 2010.[1]

Appearances in Fiction

Screen shot of Godzilla approaching the nuclear plant
  • In Godzilla vs. Destoroyah Godzilla approaches the nuclear plant, and the actions of the Japan Self Defense Forces are stalled in action against the monster, fearing that a direct attack could cause a nuclear explosion (of Godzilla) and destroy the planet. Thankfully, the Super X-III weapon comes to the rescue and freezes the beast before he can do any more harm.[3]


External links

Coordinates: 33°29′27″N 132°18′41″E / 33.49083°N 132.31139°E / 33.49083; 132.31139


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