Chubu Electric Power Company, Incorporated
Inappropriate Incident Regarding the Formulation of Standard Seismic Ground Motion in the New Regulatory Standard Compliance Review for the Hamaoka Nuclear Power Plant
An inappropriate incident was confirmed where representative waves were selected by a method different from the one explained at the review meetings concerning the formulation of standard seismic ground motion for Units 3 and 4 of the Hamaoka Nuclear Power Plant. The impact on consolidated earnings for the fiscal year ending March 2026 is expected to be limited.
Key Figures
- Impact on consolidated earnings for the fiscal year ending March 2026: Expected to be limited
- Date of third-party committee establishment: 2026-01-05
- Discovery of discrepancy in explanation at review meetings: 2025-12
AI要約
Overview of the Incident
Chubu Electric Power Company, Incorporated has been advancing investigative responses related to the formulation of standard seismic ground motion in the new regulatory compliance review for Units 3 and 4 of the Hamaoka Nuclear Power Plant. However, a suspicion was confirmed that representative waves were selected using a method different from the one explained during the review meetings. This incident may significantly affect the review process and is recognized as a serious issue that undermines the trust of local residents and stakeholders.
Establishment of a Third-Party Committee and Future Actions
To ensure transparency and fairness, an independent third-party committee composed of external experts has been established to investigate the facts, identify causes, and consider recurrence prevention measures. Appropriate responses will be taken based on instructions from the supervisory authorities and the Nuclear Regulation Authority. While the future impact on consolidated earnings is currently undecided, the effect on the fiscal year ending March 2026 is expected to be limited. Any matters requiring disclosure will be promptly announced.
