The Kansai Electric Power Company, Incorporated
Update on the Regular Inspection Process of Mihama Nuclear Power Plant Unit 3
Description of the Mihama Power Plant Unit 3 regular inspection progress, including progress and implementation of countermeasures. On September 15, parallel startup planned, with safety prioritized as inspections proceed steadily.
Key Figures
- Power plant name: Mihama Nuclear Power Plant Unit 3 (rated output 826 MW, rated thermal output 2,440 MW)
- Parallelization date: 2026-09-15
- Steam leak response from high-pressure turbine: Replacement of the upper turbine room closure cap implemented
AI要約
Section Heading
This document reports the latest progress and the status of countermeasure implementation regarding the Mihama Power Plant Unit 3 regular inspection process. Following the steam leak in May, the 29th regular inspection began in June, and countermeasures such as replacing the upper turbine room closure cap have been implemented. At present, progress is on schedule, and the reactor is scheduled to be brought online in parallel on September 15. Going forward, maintenance of equipment where high-temperature, high-pressure steam and water flow is involved will be thoroughly prioritized for safety as the priority in advancing inspections.
Section 2 Heading
This regular inspection aims to verify safety measures and strict adherence to procedures, while advancing startup preparations and continuing countermeasures based on the investigation of the steam leak cause. The parallel date will be confirmed depending on the results of the upcoming work process planning.
関西電力株式会社
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