Mass Rapid Transit Act Article 23
The electricity supply industry has to set higher priority to supply the electricity required by mass rapid transit system. After obtaining approval from the competent authority in charge of electricity supply, the operation organization of mass rapid transit system may partially or entirely establish its own system for generating, transforming and distributing electricity.
中文原文 大眾捷運法第23條
大眾捷運系統所需電能，由電業機構優先供應；經電業主管機關之核准，得自行設置供自用之發電、變電及輸電系統之一部或全部。