• Atrium daylighting design to maximise the use of sunlight, minimizing requirement for artificial lighting during the day
• Use of low-E double glazed glass on the long facades facing North-South to optimise HVAC loads and enhance occupant comfort
• Integrated design of rooftop car-park to act as a natural heat shield into the centre
• CO sensors at the loading docks and car parks to control the usage of fans
• Escalators that go into slow-down mode when not in use during lower peak period
• Gearless lift system coupled with AC VVVF drive, with the lifts also featuring light weight decorations and sleep mode
• Energy-efficient lights and intelligent lighting control systems in the common areas
• Use of the Sprinkler Tank as a Thermal Energy Storage bank, allowing the building management to perform load shifting, load shaving and energy conservation
• Energy Recovery Wheel to capture the cooling energy in exhaust air from the toilets to pre-cool fresh air going into the air-conditioning system
• High-efficiency chillers with automatic condenser tube cleaning device to maintain high levels of chiller efficiency, reducing potential energy loss in the future
• Extensive energy and water sub-metering for the base building as well as tenants to closely monitor energy usage

On-site energy generation

• Solar panels on the roof to harness the sun’s energy and convert it into electricity which is used in the centre
• Cogeneration system which produces electricity from diesel, and also captures the waste heat in the exhaust gases to heat up hot water for the two biggest F&B tenants in the centre. After stabilization, the cogeneration system is intended to run on biodiesel produced from waste cooking oil which is collected from the tenants.

Water conservation

• Collection of rainwater for flushing toilets and for irrigation of green columns at the Sky Terrace and landscaping on Discovery Walk
• Water-efficient tap fittings to the highest practical level are used in the mall to reduce water consumption and wastage
• The use of NEWater (Public Utilities’ Recycled Water) for cooling towers and sprinkler make-up water reduces consumption of potable water

Waste management and recycling

• Extensive recycling of waste materials in the mall including used cooking oil, organic wastes, metals, plastics films and wrap, glass containers, paper and cardboard

Green Lease and tenancy collaboration

• Guidelines and resources on use of energy-efficient lighting and power equipment, water-efficient fittings, sustainable materials for fit-out, waste management and recycling practices
• Provision of tools like the Tenant Energy Calculator for tenants to calculate lighting loads and energy consumption, with recommendations provided on ways to reduce energy use for lighting
• Monitoring of tenants’ energy use and incentives for reducing energy consumption

Air quality

• Mechanical grease extraction system with self-cleaning, in-built mechanical cutter and pump for grease extraction, minimizing access to grease pit and improving indoor air quality

Green transport

• Direct access to the Somerset MRT station, promoting the use of public transport and lowering the requirement for vehicle use
• Provision of priority parking lots, Green Lots, for users of hybrid, electric and CNG cars

Carbon footprint studies

• First retail development in Singapore to have its carbon footprint assessed in detail – carbon footprint studies done for the embodied and operational carbon of the development

Social spaces

• The Sky Terrace has rotating green columns which are irrigated using harvested rainwater, as well as a children’s play area