SMART ENERGY
Overview
Chunghwa Telecom Laboratories develops solar photovoltaics (PV) power station operation analysis of heat map, automated demand response (ADR), energy-saving optimization strategies for air conditioners, as well as auto-scaling meter reading communication technologies to create smart energy cloud system and head end system (HES). These systems are used in building and data center energy saving, solar PV management, and advanced metering infrastructure (AMI). The smart energy cloud system can increase PV power generation output by 10% or improve building and data center energy efficiency by 15% without replacing existing equipment. Meanwhile, HES supports the government in advancing AMI plan and helps achieve the goal of deploying 15 million smart meters by 2035. In addition, further research is being conducted on microgrid monitoring and optimal battery energy storage charge-discharge control technologies to establish distributed energy management system, enhancing the power supply resilience and stability of campus and data center.SMART ENERGY
CORE TECHNOLOGY
- Solar PV power station operation analysis of heat map
- Distributed network protocol (DNP 3.0) interface
- Automated demand response (ADR)
- Optimal strategy of energy-saving for air conditioners
- Auto-scaling meter reading communication technology
Smart energy cloud system diagram.
HES architecture diagram.
SMART ENERGY
APPLICATION SITUATION
Smart Energy Cloud System: The system can monitor equipment in six major fields including solar PV power generation equipment and building energy-saving equipment (including electricity, air conditioners, lighting, environment and water supply and drainage). TL also develops:
1. Solar PV power generation equipment monitoring: capture real-time information on solar PV power generation equipment, apply AI for analysis, and establish solar PV power station operation analysis of heat map to help customers catch real-time information of solar PV power generation and diagnose the bad status of power stations in advance to improve power generation efficiency by 10%. On the other hand, TL also builds DNP3.0 interface that integrates with Taipower Distributed Renewable Energy Advanced Management System (DREAMS) to upload solar PV station's power generation information and complies with Taipower's grid-connection specifications. As of Dec. 2025, the number of customers is 450, the site count reaches 1450, and the amount of the total installed capacity of PV under management exceeds 330MWp.
2. The technology of ADR can be used to receive Taipower's OpenADR 2.0b instructions to perform load shedding control for power equipment, which is in line with Taipower's demand response plan to suppress peak power consumption. Besides, the optimal strategy of energy-saving for air conditioners establishes a priority operation mechanism for high-efficiency air conditioners through the energy consumption analysis of air conditioner operation, which can save 15% of energy. These technologies have been applied to manage over 50,000 air conditioners in 4 different cities, and won the Bronze Medal Award at the 2021 and 2024 Taiwan Innotech Expo.
1. Solar PV power generation equipment monitoring: capture real-time information on solar PV power generation equipment, apply AI for analysis, and establish solar PV power station operation analysis of heat map to help customers catch real-time information of solar PV power generation and diagnose the bad status of power stations in advance to improve power generation efficiency by 10%. On the other hand, TL also builds DNP3.0 interface that integrates with Taipower Distributed Renewable Energy Advanced Management System (DREAMS) to upload solar PV station's power generation information and complies with Taipower's grid-connection specifications. As of Dec. 2025, the number of customers is 450, the site count reaches 1450, and the amount of the total installed capacity of PV under management exceeds 330MWp.
2. The technology of ADR can be used to receive Taipower's OpenADR 2.0b instructions to perform load shedding control for power equipment, which is in line with Taipower's demand response plan to suppress peak power consumption. Besides, the optimal strategy of energy-saving for air conditioners establishes a priority operation mechanism for high-efficiency air conditioners through the energy consumption analysis of air conditioner operation, which can save 15% of energy. These technologies have been applied to manage over 50,000 air conditioners in 4 different cities, and won the Bronze Medal Award at the 2021 and 2024 Taiwan Innotech Expo.
HES:The HES features auto-scaling meter reading communication technology that automatically expands the number of meter reading communication modules based on the number of managed meters, enabling the system to support meter reading for over one million meters. CHT pioneered the implementation of an NB-IoT (Narrowband Internet of Things)/LTE-M (Cat. M1) staggered network access mechanism, effectively distributing the timing of meter reading connections to increase the number of meters that can be connected to each cellular base station. The solution has been successfully deployed in Taipower’s AMI phases I–IV and its service project HES, cumulatively managing over one million meters. Additionally, the communication quality and reliability of the meter reading have been highly recognized, supporting the government in achieving its 2025 target of deploying 4 million smart meters. The solution was also awarded the Excellent Application Award at the Taiwan Cloud IoT Innovation Contest in 2023.