First priority on energy conservation by passive design, achieving 20% of energy
saving
- Tapered and linear built form to enhance air flow as well as daylight, and
reduce solar heat gain
- Cross-ventilated layout to enhance effective natural ventilation and reduce the
demand of air-conditioning
- High-performance envelope and glazing with external shading at an ultra-low
Overall Thermal Transfer Value (OTTV) of the building envelope at 11 W/m2
(over 80% lower than maximum value required under current statutory control)
Second priority on energy efficiency by green active systems, achieving 25% of
energy saving
- High-Volume-Low-Speed Ceiling (HVLS) fans to enhance air movement and
reduce the demand of air-conditioning
- Desiccant dehumidification to avoid overcooling of air for humidity control
- Under-floor displacement cooling to effectively cool the inhabitant’s zone at a
higher supply air temperature (5 degree Celsius higher than conventional A/C
systems)
- Radiant cooling by chilled beam to cool the inhabitants
Lastly on the efficient production of renewable energy, increasing energy
utilization by 75% as compared to conventional electricity supply from grid
- Bio-diesel Tri-generation to generate over 143MWh per year
- Photovoltaic panels (three different types: poly-crystalline, Building-Integrated
thin-film and cylindrical CIGS) to generate about 87MWh per year; the main
building roof is inclined to maximize solar irradiance on PV panels
- Solar thermal to generate hot water for eco-café area