An investigation report submitted by Control Yuan members has expressed concern about Taipower nuclear power plants' seismic resilience. A Taipower spokesperson has explained that, since 2015 and in compliance with Nuclear Safety Commission (NSC) requirements, Taipower has completed probabilistic seismic hazard analyses (PSHAs) for nuclear power plants based on the US Senior Seismic Hazard Analysis Committee (SSHAC) Level 3 protocol. Based on the analysis results, Taipower has implemented seismic strengthening of facilities related to safe shutdowns, and this has received NSC review and approval for filing. 

Taipower has also completed seismic probabilistic risk assessments (SPRAs) for Kuosheng and Ma'anshan Nuclear Power Plants. These include secondary hazards resulting from earthquakes. The initial SPRAs showed that Kuosheng and Ma'anshan's overall risk meet the standard. However, the assessment results and risk calculations await NSC review. 

In addition, in 2024 and 2025, Taipower complied with NSC requests by inviting a foreign expert delegation to perform a parallel SPRA review. Based on the parallel review opinions, Taipower is currently implementing seismic margin improvements for safety facilities, running feasibility assessments, and recalculating earthquake risk values. Taipower will, in accordance with the law, complete the seismic safety assessment report and submit it to the NSC for technical review.  

A spokesperson for Taipower reiterated that the use of nuclear power must abide by the government's Two Requirements and the Three Principles, and that nuclear safety has always been Taipower's utmost concern. At present, the current status of Taiwan's nuclear power plants has been reported to the Ministry of Economic Affairs for review. Next steps will include restart planning and safety inspections that include seismic resistance, all of which will be carried out in accordance with NSC review requirements and related regulations.

Spokesperson: Chief Administrator Huang Mei-Lien
Phone: (02) 2366-6650/0922-696-383
Email: u030573@taipower.com.tw

Contact Person: Department of Nuclear Technology Director Chang Chin-Kuan
Phone: (02) 2366-7110/0972-787-866
Email: u685014@taipower.com.tw