The EIA, in its International Energ

The EIA, in its International Energy Outlook [2], analyses and forecasts future trends in building energy consumption (Fig. 4). Energy use in the built environment will grow by 34% in the next 20 years, at an average rate of 1.5%. In 2030, consumption attributed to dwellings and the non-domestic sectors will be 67% and 33% respectively (approximately). Spread in Southeast Asian, and therefore, the growth of construction will boost energy demand on the residential sector. Forecasts predict that both developed and non-developed economies will be balanced in the use of energy in dwellings by 2010. Economic, trading and population growth in emerging economies will intensify needs for education, health and other services, together with the consequential energy consumption. It is expected that energy consumption in the service sector in non-developed countries will be doubled in the next 25 years, with an annual average growth rate of 2.8%.