The Electricity Act Article 35

In case of a disaster, emergency or an event described in the previous paragraph, the affected Electricity-Generating Enterprise, Electricity Transmission and Distribution Enterprise or Specified Electricity Suppliers shall report the incident to the competent authorities at various levels of government in accordance with the required information to be reported, time limit, method and procedure specified by the central competent authority.
中文原文 電業法第35條
發電業、輸配電業及特定電力供應業發生各類災害、緊急事故或有前條所定情形時,應依中央主管機關所定應通報事項、時限、方式及程序之標準通報各級主管機關。

English translation for reference only; the Chinese text prevails. Not legal advice.