The Hong Kong Special Administrative Region Government has unveiled the new buildings energy efficiency ordinance for the region.
The ordinance provides a legal basis for the mandatory implementation of building energy codes, according to a spokesperson from the Environment Bureau.
The codes specify basic energy efficiency standards for air-conditioning, lifts and escalators, and electrical and lighting installations in buildings.
Buildings services installations in new buildings need to declare compliance at the design and occupation approval stages and comply with the codes at all times.
Existing buildings planning major retrofitting works also need to incorporate energy efficiency-enhancing measures and carry out energy audits once every ten years.
The implementation will result in energy savings of 2.8 billion kilowatt hours in the first decade, and reductions in carbon dioxide emissions of 1.96 million tons.