Improving energy efficiency is a high priority and we are committed to upholding excellent service levels for airport users in our buildings and facilities while maintaining the same or a lower level of energy consumption per passenger over time.
Energy efficiencies
In addition to using seawater for cooling our large buildings, we have also been able to improve cooling efficiencies by using variable frequency motors and more efficient refrigerants in our cooling systems.
Since early 2007, the Airport Authority (AA) has been replacing lighting units in passenger terminals and office buildings with more efficient lighting, including LEDs. Temperature in most areas across the terminals is maintained at
Hong Kong International Airport's (HKIA) continuing energy efficiency enhancement and carbon reduction efforts enabled us to achieve the "Class of Excellence" Energywi$e Label under the Hong Kong Awards for Environmental Excellence (HKAEE) since 2008. We also won the first runner-up in the "Biggest Unit Saver (Company)" category of the Power Smart Contest 2010 organised by Friends of the Earth.
Green buildings and sustainable designs
Our terminals are designed to be thermally efficient. They use modern glass facades and building envelopes to reflect heat and reduce cooling loads. Roof skylights optimise natural light during daytime and light sensors automatically reduce indoor lighting when daylight allows. Innovative cooling systems are in place at Terminal 1 to cool only the bottom three metres of our large open indoor spaces, leaving the air above at ambient temperatures.