Chunghwa Telecom's Energy Operations Center (EOC) automatically collects internal power consumption information from all energy and information management systems in the company. This allows the comprehensive analysis of all of the company's energy consumption information and real-time displays of energy-saving results, providing functions such as a situation dashboard, power efficiency indicators, and an energy-saving technology database, thereby comprehensively assisting managers in implementing PDCA for energy conservation and helping companies achieve energy conservation goals.