Decommissioning Anegasaki Thermal Power Station Units 5 and 6, Sodegaura Thermal Power Station Unit 1, Chita Thermal Power Station Unit 5, and Hirono Thermal Power Station Unit 2 2025/09/30

JERA Co., Inc. (“JERA”) hereby announces that it has today decommissioned Anegasaki Thermal Power Station Units 5 and 6, Sodegaura Thermal Power Station Unit 1, Chita Thermal Power Station Unit 5, and Hirono Thermal Power Station Unit 2 (total 3,254MW).

By replacing aging thermal power generation facilities with those that are state-of-the-art, JERA contributes to ensuring a stable supply of electricity over the long term and to achieving a decarbonized society. Since FY 2020, JERA has carried out 7,310MW of new installations and replacements. In addition, JERA is moving forward with the new construction of Chita Thermal Power Station Units 7 and 8 (1,319.8MW), aiming to start operation in FY 2029. We are also moving forward with deliberations concerning the new construction of Sodegaura Thermal Power Station Units 1 through 3 (approx. 2,600MW), aiming to start operations as early as 2032, and have begun preparations for an environmental assessment.
The power generation facilities to be decommissioned are aging units whose degradation makes them difficult to restart (under long-term planned shutdowns, these facilities have not been counted as generating capacity with respect to the electricity supply-and-demand balance). Their decommissioning takes into account the state of new installations and replacements and will therefore have no impact on current electricity supply stability.  

With the understanding and cooperation of local communities and other stakeholders, we will continue working to ensure a stable supply of electricity in Japan and to achieve a decarbonized society.

Overview of Anegasaki Thermal Power Station
Location: 3 Anegasaki Kaigan, Ichihara-shi, Chiba-ken

1    Units 5 and 6 have been under long-term planned shutdown since March 2023.

Overview of Sodegaura Thermal Power Station
Location: 2-1 Nakasode, Sodegaura-shi, Chiba-ken

2    Unit 1 has been under long-term planned shutdown since February 2023.

Overview of Chita Thermal Power Station
Location: 23 Kitahama-machi, Chita-shi, Aichi-ken

3    Unit 5 has been under long-term planned shutdown since April 2025.

Overview of Hirono Thermal Power Station
Location: 58 Futatsunuma, Shimokitaba, Hirono-machi, Futaba-gun, Fukushima-ken

4    Unit 2 has been under long-term planned shutdown since April 2025.

Reference: Thermal Power Generation New Installation and Replacement Efforts