Home > About us > An Overview
About us
An Overview

The Japan Atomic Power Company (JAPC) was established in November 1957 as a power company solely engaged in nuclear energy in Japan.
Since then, JAPC has continued to play a leading role in the electric power industry as a pioneer in nuclear power generation through various projects, including the construction of the first commercial nuclear power plant in Japan and the construction, operation and decommissioning of power plants.

 

History of Japan Atomic Power Company

1957

Establishment of the Japan Atomic Power Company November 1, 1957

Inaugural General Meeting 
(The Industrial Club of Japan)

Inaugural General Meeting
(The Industrial Club of Japan)

 

1966

Japan's first commercial nuclear
power plant Tokai Power Station
(Gas-cooled nuclear reactor)

Achieved criticality: May 4, 1965

Achieved criticality:
May 4, 1965

Commercial operation started: July 25, 1966

Commercial operation started: July 25, 1966

 

1970

Japan's first commercial light water reactor Tsuruga Power Station Unit 1(Boiling water reactor)

Electricity generated by Tsuruga Power Station Unit 1, which was Japan's first commercial light water reactor, was sent to the World Expo that began in Osaka on the same day.
Commercial operation started:March 14, 1970

Commercial operation started:
March 14, 1970

 

1978

Japan's first large-scale nuclear power plant Tokai No. 2 Power Station (Boiling water reactor)

Commercial operation started:November 28, 1978

Commercial operation started:
November 28, 1978

 

1987

Japan's first advanced standard light water reactor Tsuruga Power Station Unit 2 (Pressurized water reactor)

Commercial operation started:February 17, 1987

Commercial operation started:
February 17, 1987

 

2001

The first decommissioning of a commercial nuclear power plant in Japan Tokai Power Station
Commercial operation terminated on March 31, 1998 Decommissioning started: December 4, 2001

Removal of turbines for decommissioning, 2003

Removal of turbines for decommissioning, 2003

 

2004

Japan's first advanced pressurized water reactors Tsuruga Power Station Units 3 and 4
Application for Reactor Installation License: March 30, 2004
Construction Preparation Work started: July 2, 2004

Conceptual drawing of Tsuruga Power Station Units 3 and 4

Conceptual drawing of
Tsuruga Power Station Units 3 and 4

 

2011

Conclusion of a feasibility study contract for constructing Japan’s first overseas nuclear power plant
Feasibility study contract signed with Vietnam Electricity (EVN)
September 28, 2011

Conceptual drawing of Tsuruga Power Station Units 3 and 4

Feasibility study contract signed with the Vietnam Electricity Corporation on September 28, 2011

 

2015

Decommissioning of Tsuruga Power Station Unit 1
Operation terminated: April 27, 2015
Decommissioning started: May 15, 2017

 

 

2016

Support for a new nuclear power plant construction project in the United Kingdom
Signed a support agreement focusing on the licensing stage for the proposed project with Hitachi, Ltd. and Horizon Nuclear Power Ltd.: July 7, 2016 Established JExel Nuclear Company with Exelon Corporation in the United States for providing advisory services and operation and maintenance management services: April 13, 2017

Conceptual drawing of Tsuruga Power Station Units 3 and 4

Establishment of JExel Nuclear Company July 7, 2016

 

2016

Agreement with EnergySolutions in the United States regarding decommissioning work
April 20, 2016

Conceptual drawing of Tsuruga Power Station Units 3 and 4

Agreement with EnergySolutions in the United States regarding decommissioning work
April 20, 2016