Following the unstoppable global trends of ESG and energy transformation, smart energy has now become a major issue for enterprises. Chunghwa Telecom has been involved in the solar energy business for many years and has been proactively implementing its RE100 commitments. The company believes that ESS technology is the key to achieving enterprises' green power deployment and energy independence. As a result, Chunghwa Telecom has decided to play a leading role by implementing these technologies in its own facilities. In 2024, the company built a 1MW/1MWh energy storage system in its own IDC facility. Not only does this ESS optimize power supply stability in the IDC facility, but it also effectively reduces electricity costs via its smart charging and discharging scheduling and analysis system. Furthermore, the Chunghwa Telecom is planning an integrated 3-in-1 system, including PV, ESS, and EV charging, which isexpected to be completed at its training institution in 2025. This 3-in-1 system will enhance the company's green energy usage rates and also become the company's first microgrid model for training and simulations.

To help enterprises tackle ESG challenges, Chunghwa Telecom has also launched the "Behind-the-Meter Energy Storage Solution", which provides electricity consumption assessments, system planning, project and construction and maintenance services. These efforts will help enterprises address challenges such as rising electricity prices, power outages, and green power saving, thereby comprehensively improving energy management efficiency as well as benefiting the resilience and competitiveness of enterprises.