Table: Japan nuclear operations: Kansai Electric shuts Takahama No.3 for maintenance

Chubu Electric Power Co

14/04/2026 08:26

TOKYO, April 14 (Reuters) - Kansai Electric Power 9503.T shut the 870-megawatt (MW) No.3 reactor at its Takahama nuclear power station in western Japan on April 7 for scheduled maintenance and refuelling, a company spokesperson said on Tuesday.

The unit is slated to restart in early November, with the outage expected to last longer than usual due to the replacement of steam generators inside the reactor containment vessel, the spokesperson said.

Meanwhile, Kyushu Electric Power 9508.T restarted the 890-MW No.2 reactor at its Sendai nuclear power station in southern Japan on March 28 following planned maintenance, a company spokesperson said.

As of Tuesday, Japan has 10 reactors in operation, with a combined capacity of 10,088 MW.

Many utilities are undergoing re-licensing to meet stricter safety standards implemented after the 2011 Fukushima disaster. Prior to the disaster, Japan operated a total of 54 reactors.

The table below shows the status of Japan's nuclear power plants.

The regional utilities are: Chubu Electric Power 9502.T, Chugoku Electric Power 9504.T, Hokkaido Electric Power 9509.T, Hokuriku Electric Power 9505.T, Kansai Electric Power 9503.T, Kyushu Electric Power 9508.T, Shikoku Electric Power 9507.T, Tohoku Electric Power 9506.T and Tokyo Electric Power (Tepco) 9501.T.

In the table, the companies are referred to by their regional names.

Japan Atomic Power Company (Japco), a nuclear energy company, owns two reactors.

Company
Plant
Unit
MW
Status
Hokkaido
Tomari
1
579
Shutdown 22/4/11
Hokkaido
Tomari
2
579
Shutdown 26/8/11
Hokkaido
Tomari
3
912
Shutdown 5/5/12
Tohoku
Onagawa
2
825
Shutdown 14/1/26
Tohoku
Onagawa
3
825
Shutdown 11/3/11
Tohoku
Higashidori
1
1,100
Shutdown 6/2/11
Tepco
Kashiwazaki-Kariwa
1
1,100
Shutdown 6/8/11
Tepco
Kashiwazaki-Kariwa
2
1,100
Shutdown 16/7/07
Tepco
Kashiwazaki-Kariwa
3
1,100
Shutdown 16/7/07
Tepco
Kashiwazaki-Kariwa
4
1,100
Shutdown 16/7/07
Tepco
Kashiwazaki-Kariwa
5
1,100
Shutdown 25/1/12
Tepco
Kashiwazaki-Kariwa
6
1,356
Online 9/2/26
Tepco
Kashiwazaki-Kariwa
7
1,356
Shutdown 23/8/11
Chubu
Hamaoka
3
1,100
Shutdown 29/11/10
Chubu
Hamaoka
4
1,137
Shutdown 13/5/11
Chubu
Hamaoka
5
1,380
Shutdown 14/5/11
Hokuriku
Shika
1
540
Shutdown 1/3/11
Hokuriku
Shika
2
1,206
Shutdown 11/3/11
Kansai
Mihama
3
826
Online 21/5/25
Kansai
Takahama
1
826
Online 30/11/25
Kansai
Takahama
2
826
Shutdown 23/1/26
Kansai
Takahama
3
870
Shutdown 7/4/26
Kansai
Takahama
4
870
Online 16/10/25
Kansai
Ohi
3
1,180
Online 14/8/25
Kansai
Ohi
4
1,180
Shutdown 4/3/26
Chugoku
Shimane
2
820
Shutdown 9/2/26
Shikoku
Ikata
3
890
Online 25/12/25
Kyushu
Genkai
3
1,180
Online 13/6/25
Kyushu
Genkai
4
1,180
Online 17/10/25
Kyushu
Sendai
1
890
Online 21/12/25
Kyushu
Sendai
2
890
Online 28/3/26
Japco
Tokai Daini
1
1,100
Shutdown 11/3/11
Japco
Tsuruga
2
1,160
Shutdown 7/5/11
Total
33,083


 (Reporting by Yuka Obayashi; Editing by Subhranshu Sahu)

 ((Yuka.Obayashi@thomsonreuters.com; +813-4520-1265;))