Water Resources Management
In terms of water use, it is primarily the water use for purposes of general washing and cooling air-conditioning. Chunghwa Telecom effectively keeps records of water use with the self-developed EARTH system and reviews such on a regular basis. Also, abnormal water use is managed in a real-time fashion. In addition, centralized water bill payment and management are implemented across all operating sites.
To effectively manage and control the use of water resources, we have combined IoT-based information and communication technologies to develop the “Intelligent Water Resource Management Platform.” The platform includes multiple feature modules, including water meter data reading, data collection and storage, alarm management, statistical analysis, predictive analysis, system management, maintenance, etc. Using this intelligent platform to monitor water use in real-time, we effectively achieve our annual water conservation goal.
Water Consumption
Unit: million cubic meters
| Water Withdrawal | 2020 | 2021 | 2022 | 2023 | Target for 2023 |
|---|---|---|---|---|---|
| Water Withdrawal | 2.297 | 2.170 | 2.175 | 2.168 | 2.146 |
| Water Discharge | 0.680 | 0.598 | 0.566 | 0.635 | |
| Total Net Fresh Water Consumption | 1.617 | 1.572 | 1.609 | 1.533 |
Notes:
1. The data scope covers 100% of operational sites.
2. Water Withdrawal: Currently, only municipal water usage is calculated. After implementing ISO 46001, both municipal and groundwater usage will be included.
3. Water Discharge: Currently calculated using domestic water usage plus recycled water. In the future, following the results of ISO 46001, it will be calculated by subtracting water usage and reused water from the total water withdrawal.
Unit: metric ton
| 2020 | 2021 | 2022 | 2023 | |
|---|---|---|---|---|
| Domestic water use | 679,629 | 598,435 | 566,165 | 634,908 |
| HVAC water use | 1,617,960 | 1,571,508 | 1,609,038 | 1,533,227 |
| Reclaimed water | 2,777 | 1,534 | 7,453 | 4,143 |
Notes:
1. Air Conditioning Water: Primarily used for cooling towers.
2. Recycled Water: Collected and reused water that would otherwise be discharged.
Water Efficiency Management
To ensure an efficient use of water resources and enhance sustainable competitiveness, we have set the target of reducing water consumption by 1% yearly (with 2020 as the base year). Through water audits, performance evaluations, execution and optimization of daily management of water equipment, implement the essence of ISO 46001:2019 with the process of PDCA and continuous improvement and other measures, and other measures, we aim to improve water use efficiency, reduce water consumption, and lower water costs.
| Elements of Management Programs | Description |
|---|---|
| Implement of ISO 46001 water resource efficiency management systems |
|
| Install smart water meters |
|
| Water Use Assessment |
|
| Actions to Reduce Water Consumption |
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| Actions to Improve Wastewater Quality | Install greywater systems to new buildings to collect and treat domestic wastewater to the specified water quality standards for reuse within a certain range for non-potable or non-body-contact purposes. |
| Application of water recycling |
|
| Awareness training provided to employees on water efficiency management programs | Organize employee training in three categories annually in the spirit of and in accordance with the provisions of the ISO 46001:2019 Water Efficiency Management System, enabling employees to apply knowledge and action plans to daily operations, thereby conserving water resources and reducing consumption. |
| Establishment of targets to reduce water use | Set the target of 1% reduction yearly for water use management, with 2020 as the base year. |
