The Electricity Act Article 19

Electricity Transmission and Distribution Enterprises and Public Electricity-Retailing Utilities shall not terminate or suspend their operations.The suspension or termination of operations by Electricity-Generating Enterprises, Renewable Energy-Based Electricity-Retailing Enterprises, and Specified Electricity Suppliers shall be carried out pursuant to the following provisions:1. Before suspending operations, a business suspension plan shall be submitted to the Electricity Industry Regulatory Agency for approval; the period of suspension shall not exceed one year.2. Before terminating operations, a business termination plan shall be submitted to the Electricity Industry Regulatory Agency for approval, and within fifteen days from the termination date, the electricity licence shall be returned to the same agency for cancellation. The Electricity Industry Regulatory Agency may proceed to cancel the licence if the electricity licence is not submitted within this period.
中文原文 電業法第19條
輸配電業及公用售電業不得停業或歇業。
發電業、再生能源售電業及特定電力供應業之停業或歇業,應依下列規定辦理:
一、於停業前,應檢具停業計畫,向電業管制機關申請核准,停業期間不得超過一年。
二、於歇業前,應檢具歇業計畫,向電業管制機關申請核准,並於歇業之日起算十五日內,將電業執照報繳電業管制機關註銷;屆期未報繳者,電業管制機關得逕行註銷。

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