In pursuit of continuous improvements to our energy performance, Swire Properties performed technical upgrades at all our properties this year.

One Island East replaced its seven existing chillers with highly efficient variable-speed drive chillers. These replacements also optimised the total capacity of the chiller plant, better reflecting the current loading and enhancing the efficiency of the plant, with one existing 1,800 tonnes of refrigeration ("TR") chiller switched to a 1,030 TR chiller. Anticipated annual electricity savings are 1,400,000 kWh.

Meanwhile, Three Pacific Place began replacing two of its existing chillers with variable-speed drive chillers. The work is estimated to produce annual electricity savings of 551,000 kWh.

We installed two 700TR oil-free chillers at INDIGO in Beijing to improve the overall efficiency of existing ice storage systems. Estimated annual electricity savings are about 950,000 kWh.

At Citygate Outlets, three condenser water pumps had variable speed drives installed this year, which will save around 70,000 kWh of electricity per year. At Taikoo Hui Guangzhou, variable speed drives were installed in the fans of two cooling towers. These will help optimise the towers’ operations and save about 50,000 kWh per year.

Several initiatives planned for 2024-2026 aim to enhance the energy performance of the One Pacific Place and Two Pacific Place HVAC systems, including:

Upon completion in 2026, these measures are expected to yield total annual energy savings of approximately 607,000 kWh.

At Pacific Place, Cityplaza, Citygate Outlets and Island Place Mall, 25 EC plug fans were installed which will produce total energy savings of around 234,000 kWh annually.

A total of 55 EC plug fans were installed at Taikoo Hui Guangzhou this year, bringing the advantages of energy saving, high efficiency, long life, low vibration and low noise, while saving an estimated 150,000 kWh per year.

Several supply and exhaust fans in the Taikoo Li Chengdu underground parking garage were retrofitted with energy-efficient EC fans. These will continue to improve air quality in the parking garage and will increase efficiency, reducing fan energy consumption by 39,600 kWh per year.

Forty-seven fan coil units were upgraded to intelligent FCUs serving the arcade, toilets and back-of-house areas. These will produce annual energy savings of about 124,000 kWh.

Before 2024, the PAUs and air purifiers at Taikoo Li Chengdu were operated at fixed speed during business hours. To reduce energy consumption and enhance indoor air quality, the operation of the PAUs and air purifiers were made to connect with real-time IAQ data collected by IAQ sensors installed throughout the mall. This reduced the speed of the units while maintaining indoor air quality, thus saving about 50,000 kWh per year.

We continued to replace and upgrade our current lighting fixtures around our Hong Kong portfolio to highly efficient LED lighting. This work is expected to generate annual electricity savings of 808,000 kWh.

For example, the Citygate complex’s T5 fluorescent light replacement project continued this year, with 1,300 conventional fluorescent lights in the P3 car park and 700 T5 fluorescent lights in the P1 car park and basement plant room replaced with energy-saving LED luminaires. In the parking lot, the LED replacements were accompanied by occupancy sensor installation. In standby mode, the LEDs dim down to 30% of operating capacity to save more energy. The estimated annual energy savings are around 185,000 kWh.

In 2024, Taikoo Li Qiantan installed a smart control system with lighting sensors for indoor lighting. This is expected to save about 90,000 kWh per year. Meanwhile, INDIGO replaced over 2,000 traditional lighting fixtures with smart versions, with an estimated annual saving of about 200,000 kWh. HKRI Taikoo Hui also replaced over 2,900 fluorescent lamps with LED bulbs with a lifespan of about 50,000 hours, saving repair costs and creating energy savings of about 270,000 kWh per year.

At Taikoo Li Chengdu, the approximately 5,000 normal LED lighting fixtures in back-of-house areas consume more power than high-efficiency LEDs. These were all replaced in 2024, leading to brighter lighting that consumes 50% less power. Total energy savings are estimated to be 100,000 kWh per year.