Construction of Nuclear Power Station and Operational Technology

Shimane Nuclear Power Station No.1 Unit is First Japan-Made Nuclear Power Station in Japan.

  • Shimane Nuclear Power Station No. 1 unit (with output of 460MW in Shimane pref.) began operation in March 1974 after 4 years and 2 months of construction period as the 6th commercial light-water reactor in Japan and the first in western Japan.
  • As we adhered to a basic policy of utilizing Japan-developed technologies from the planning stage, about 93% of the overall facilities are manufactured with Japan' s technologies.
  • In 1989 we started operating No. 2 unit (with output of 820MW), and had been operating these 2 units stably.

Outline of units

No. 1 unit No. 2 unit No. 3 unit
Output 460MW 820MW 1,373MW
Reactor type BWR BWR ABWR
COD Mar. 1974 (decommissioned
Apr. 2015)
Feb. 1989 -

No. 3 Unit as Latest Advanced Boiling Water Reactor (ABWR) Aimed to Commence Operation

  • We started the construction of No. 3 unit which employs our first Advanced Boiling Water Reactor in 2005. Its out put is planed to reach 1,373MW, surpassing the total output of Nos. 1 and 2 units.
  • Additional safety improvement work is now being implemented, while the construction was close to fuel loading.

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