As we are making steady progress towards our 2030 ESG Targets with a 42% carbon intensity reduction as the key performance indicator, we strive to embrace more green initiatives to reduce energy consumption and carbon emissions. We will evaluate and improve the existing operational measures regularly, including the adoption of a combined chiller plant with big data analysis in Three Garden Road.
Design and Implementation
Chiller plants in Champion Tower and ICBC Tower were operated independently. To enhance the overall working efficiency of the chiller plants especially at low demand condition such as night-time, the cooling load of two buildings will be served by either chiller plant in Champion Tower or the one in ICBC Tower at Three Garden Road.
Big Data Application
By using innovative and smart technology, big data analysis for chiller plant retro-commissioning is adopted. Compared with a traditional dashboard, more performance and correlations, including year-by-year energy consumption analysis and Coefficient of Performance (COP) of the chiller plant, can be revealed to facilitate the energy saving identification.
Impacts on Organization and Environment
The adoption of the combined chiller plant since April 2022 has brought benefits to both the environment and organization in terms of energy saving and operation efficiency. With a 21%-increase of COP, not only can the combined chiller plant lead to a higher working efficiency, but also enhance the system flexibility and generate a complementary effect on improving the 24-hr chilled water supply reliability to avoid sudden disruption. Meanwhile, the reduction in energy consumption helps promote ease of maintenance, resulting in a lower operating cost. Altogether the estimated electricity saving per year and greenhouse gas reduction will be 1,049,000 kWh and 744 tonnes CO2e respectively.