Abstract: The current rapid trend of urbanization is supported by the huge amount of resources consuming. Due to the lagged manufacturing technology, lower efficiency and unbefitting consumption pattern, etc, there is a big challenge of energy-environmental sustainable development in the cities in China. By constructing a bottom-up model and multi-scenario analysis on the urban residential areas, this article employs emergy evaluation as indicator methodology to estimate the depleting processes of energy and raw materials on the LEAP platform. The Business as Usual (BaU) and improvement scenarios are comprised and judged quantitatively. The result presents that, the technology scenarios for enhancing the efficiencies of energy-use ends is crucial to the sustainable development path of residential areas in cities. However, an upgrading shift of sustainable urban residential areas is still under studied.

Key words: emergy evaluation, scenario analysis, energy conservation, LEAP model