Evaluation of Public Building Energy Systems

Considering that energy-saving of public building is affected by many complicated factors, and there exists difference energy-saving methods from the building project design stage, construction stage and operational stage. This article has firstly made an analysis from the point of the systems engineering, pointing out that the public building energy systems is based on the life cycle of the theory, and then set up the evaluation target system of public building energy systems. The evaluation target system includes energy consumption target, economic target, sustainable development target, environmental target, technical target and function target. Finally, we applied Extension evaluation method to evaluate public building energy-saving, and adopt AHP to make the weight of targets.