Electric power is the greatest source of carbon emissions for Cathay Dining, with the refrigeration and chiller system accounting for about 50% of our electricity consumption. Thus, we actively monitor and review the system’s power usage.
Retro-commissioning is a solution to improve energy efficiency in buildings. In 2022, we carried out retro-commissioning works for the chillers in our Phase 1 production facility by performing an in-depth analysis of the operation data and optimising the system settings of our chillers according to actual operational needs, including chilled water temperatures and operational sequences. The optimisation works significantly improved the energy efficiency of our entire air-conditioning system, saving around 1.13 GWh of electricity a year, equivalent to 441 tonnes of carbon emissions.
With the success of this retro-commissioning project, we are honoured to have been awarded the CLP Smart Energy Award 2022: Retro-commissioning Charter Programme – Best Performance Award. We are happy to see that this project not only helps us save energy and reduce carbon emissions without financial investment, but also serves as a good example showcasing the benefits of chiller system retro-commissioning projects to other building operators.
Ms. Agatha Lee, Chief Executive Officer