Saturday, August 22, 2015

Building Efficiency Construction impact 60%

Wang_full-updated.pdf

Page 8 






Issues China’s industrialization,
urbanization, and motorization have not only resulted in domestic environmental
problems, but also raised global concerns of energy security and climate
change. The recent rocketing energy demand, which led to a series of
electricity, fuel, and coal shortages, followed by massiveenergy supply
capacity expansion, and the recent economic stimulus have further induced the
growth. China’s intensity also declined from 1985 to 2000, but, since 2000, it
has been increasing (NAE & NRC, 2007).   By the beginning of 2007, China had become
the world’s largest construction
market (Steinfeld, 2008). The
building sector consumes from more than 15 to 45 percent  (Steinfeld, 2008; Li & Colombier, 2009) of
China’s total primary energy,
depending on the exact definition of the sector. But all agree that this
proportion is growing steadily. The Chinese Ministry of Construction estimates
that around 15 to 20 billion m
2of
urban zone housing will be built between 2005 and 2020 in order to accommodate
newcomers to the cities – equivalent to the entireexisting building stock in
the EU-15 (Li & Colombier, 2009). The growth of urban energy consumption
has much to do with income growth and theimprovement of life quality. A
residential consumption survey inShanghai shows that residential electricity
varies significantly depending on householdincome and home size, with higher
income households and larger apartments consuming over twice as much as lower
income families in smaller houses (Li & Colombier, 2009)

No comments:

Post a Comment