Water is an essential raw material for the production process of thermal power plants inclusion of controlling the temperatures in the cooling system and the air quality. The efficient management of water resources and discharges will reduce any impacts on the community and the environment regarding risks associated with water, including a risk on water shortages in the area, and a risk on discharged water quality beyond the required standard. Moreover, the current water shortage problem derived from climate change has led BPP to consider the risks associated with water shortages in its production as well as the governmental regulations limiting water consumption and the amount of water released for the industrial sector.
Since the sources of water for steam production of the CHP plants in China are from groundwater and water purchased from external manufacturers. the water management has been emphasized on recycling water as much as possible in order to reduce the amount of water discharge and release water quality in accordance with the laws set and under the water management policy, details of which are as follows:
- Managing water consumption with the maximum benefit and looking for opportunities to reduce water consumption, and reuse or recycle the water.
- Improving the discharged water quality in accordance with the standards specified by laws and developing measures to prevent chemical leakages and contaminations at its original sources.
- Implementing a holistic water management to ensure that water resources consumption for operations be in accordance with the righteousness and effectiveness with no effects to stakeholders in the area.
- Assessing risks associated with water resources and setting up measures and operational practices in the event of any emergency in order to reduce the impact on and the recovery of the area.
- Developing a surveillance system for both quality and quantity to ensure that water be well managed while the discharged water is compiled with the standards required by laws.
- Promoting stakeholder’s participation especially the local communities and the research sector in order to conserve water resources, improve water quality and management in the area.
Water Resources Risks Assessment
BPP has assessed the water shortage risks from its business unit’s locations, referring to the WRI Aqueduct Water Risk Atlas (2019), a program for classifying the areas having water resources risks associated with physical, economic, legal and anticipated future risks.
The 2020 assessment using data of areas having water shortage risks over the next 20 years, found that all thermal power plants in China are located in the areas with extremely high water risks. Meanwhile, the joint- venture thermal power plants, namely BLCP in Thailand and HPC Power Plant in Lao PDR have the medium -high water risks. Consequently, BPP has regularly reviewed the water management plans of all business units in order to mitigate such risks.
- Water consumption intensity was 0.901 cubic meters/ MWh
- A released water quality was in accordance with the standards required by laws