To adopt Innovation and Technology (I&T) ideas in the lighting system in Queen Mary Hospital, a lighting system improvement project was conducted to upgrade the existing lighting system. With compliance of smart lighting control, to significantly reduce the energy consumption.
With the incorporation of smart lighting control features and the Automatic Wireless Lighting Control System (AWLCS) and the newly installed LED lightings can allow for greater flexibility, easier replacement and maintenance with lower repair cost and achieve more energy savings performance. The lighting control program stores energy consumption data such that review could be done to optimize the energy savings. The smart lighting control integrated with sun light sensor can allow to fine tune and control the lux level for different areas, time schedule and grouping control for different lighting fixtures, which can provide the hospital with the best lighting performance under all weather and sunshine hours in different seasons. With the use of a lighting simulation program, different scenarios for the lighting control in indoor and outdoor during day time and night time can be simulated and adjusted to suit the operation, even 24 hours a day and 7 days a week, in different buildings of the hospital. These smart lighting control features are able to facilitate daily hospital operations as well as reducing energy consumption.
With the new lighting system in place, we aim to reduce energy consumption of around 5 – 10% annually for the lighting system in Queen Mary Hospital and achieve the 4Ts commitment for the Energy Saving Charter organized by HKSAR – Environment and Ecology Bureau. Queen Mary Hospital comprises mainly some historic buildings. Major renovations or revitalisations are being carried out from time to time while normal services are maintained. Hospital's excellent achievement in energy conservation are supported by dedicated maintenance team and consulting members.