Synergy Energy Efficiency Index (HK) - Commercial Sector: 117%

location_city trending_up

Research Findings

The score of Intensity Effect is rebased at 100% in the year of 2000 so that it acts as a gage to Hong Kong’s relative increase in energy use (the percentage of change in energy consumption for the exact same activity) since that date.

In other words, a score of index is 100% reflects that Hong Kong is just as efficient now as in 2000. While a score of 80% would indicate that Hong Kong is 20% more efficient than before and a score of Index 130% would show that Hong Kong wastes 30% more energy to perform the same activity 14 years after the base year.

To Conclude: Based on this year's analysis, the Index score of Commercial Sector is 117%. By using 2000 as a base year, the index has revealed that 17% more energy was consumed compared to the past when performing the same activity in commercial sector over the last decade (2000-2014).

 

Table 5: Floor area by segment by years

Floor area ('000 m2) / Year 2000 2010 2013 2014
Office 9,075.4 10,689 10,983 11,061
Restaurant 2,483 2,992 2,978 2,928
Retail 4,625 4,982 5,884 5,763
Others 54,110 56,410 57,609 56,789
Total 70,293.4 75,073 77,454 76,541


Table 6: Energy Consumption by segment by years
Energy Use (TJ) / Year 2000 2010 2013 2014
Office 13,888 12,195 12,544 12,791
Restaurant 23,907 24,185 20,863 20,829
Retail 15,994 15,711 17,237 17,772
Others 40,255 64,300 69,321 70,088
Total 94,044 116,391 119,965 121,480


The Commercial Sector covers the segments of Office, Restaurant, Retail and Others. The entire energy consumption in TJ of office and restaurant has decreased in 2013 compared to that of 2000 regardless of the total floor areas of these two segments have increased. The significant percentage of increases in energy consumption are found in Others.

The other miscellaneous refers to the segments, such as Hotel, University Campuses, Data Centre, Hospital, Warehouse Storage and Commercial and Public Services, which were contributing to the growth in energy consumption to the entire commercial sector.



Chart 2: Intensity Effect by segments – Commercial

Table 7: Effects by segments
ÄExk (2000, 2014) Activity Structure Intensity Weather Total Effect
Office 1,086.23 1,487.84 -3,302.30 -368.80 -1,097
Restaurant 2,001.31 2,043.79 -6,855.30 -267.80 -3,078
Retail 1,369.70 2,150.59 -1,390.10 -352.20 1,778
Others 5,194.33 -2,312.18 27,321.70 -370.90 29,833
Total 3,651.57 3,370.05 15,774.10 -1,359.70 27,436

 

Based on the above table with negative figures shown in Intensity column, the energy efficiency performance of both office, restaurant and retail has improved over the years respectively.

Isolating the effect in the growth of the number of offices, retail stores as well as restaurants, which resulted in an increases in total floor areas, the significant surge in net Intensity Effect (energy consumption) could be explained by the rapid expansion in energy consumption of Others.

© 2017 Energy Efficiency Index.