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Moving to my next point, the advantages of intelligent buildings and especially the lower
running costs, this can perhaps best be illustrated by the study by Chan and Lam in 2010 that
compared intelligent buildings in European cities to conventional ones. As you can see
from the slide, that research showed that the intelligent buildings saved on average
28% of energy costs compared to traditional buildings. The savings were greatest with
electricity during summer, as the automatic blinds and ventilation systems reduced the
need for air conditioning; in winter heating is still needed although the added insulation
and double glazing means that temperatures do not drop as much as in older buildings.
Savings were also seen in water consumption, with waste water and rainfall being recycled.
Now, it's important to remember that this was a European study, and these findings might
not fit Hong Kong with its hot humid summer ... but I still think it's worth investigating.
More details of this paper are in the reference list at the end of my presentation if you
would like to find out more.
Ok, next I'd like to look at the environment in intelligent buildings...