Energy Efficiency Research in Building Based on the Concept of Life Cycle

Saving energy is one of the basic national policies, and energy efficiency in building is the important part of energy conservation work. It is of great significance to develop this work permanently. Discusses the definition of energy efficiency in building, introduces the concept of the life cycle, and sets up the life cycle cost estimation model. Through the analysis of energy saving building, comes to an important conclusion. Although the initial investment of energy saving building increases, the whole life cycle cost is obviously lower than general building. With the increasing of the discount rate and the extension of life cycle, the effect is more outstanding.