The use of air conditioning in Hong Kong attributes a large proportion of our total electricity consumption, due primarily to its geographic location and economic activities. In 2000, air conditioning accounted for 32% of the total electricity consumption, of which 72% was consumed by non-domestic buildings. Our total electricity consumption grew by 52% from 1990 to 2000, while the electricity consumption by air conditioning had a growth of about 55% from 27,253 Terajoule (TJ) to 42,225 TJ during the same period. The use of air conditioning is expected to grow further in view of our increasing population and economic activities. We therefore need to take measures to improve our energy efficiency, in particular, on air conditioning. We should aim to reduce our energy demand and minimize the emission of greenhouse gases from our power generation plants to protect our environment.

EMSD completed three consultancy studies on Water-cooled Air Conditioning Systems in Hong Kong from 2002 to 2005, namely ¡§Territory-wide Implementation Study of water-cooled Air Conditioning Systems in Hong Kong¡¨, ¡§Implementation Study for a District Cooling Scheme at South East Kowloon Development¡¨and ¡§Implementation Study for Water-cooled Air Conditioning Systems at Wan Chai and Causeway Bay - Investigation". Please click here for the executive summaries of the study and other related reports.