POE research on common energy saving technology applied to green buildings in China

With post-occupancy evaluation (POE) method, investigates and analyses actual energy consumption and energy saving technology of eleven green buildings and demonstrating buildings in different climate zones in China, which covers building envelope, HVAC systems, domestic hot water systems and renewable energy systems. Analyses design parameters, operation performance, actual energy consumption, indoor environment quality and users’ degree of satisfaction. Sums up common questions and optimization strategies in design and operation. Finds that the passive techniques with low costs such as natural ventilation and daylighting have good operation effects, deserving attention and popularization. The behaviour mode and use pattern of occupants have a major influence on energy consumption, which should be deemed as key points in operation management. Economical efficiency should be considered when importing energy technology for buildings and applying renewable energy. The demonstrating technologies with lower energy consumption, investment costs and space costs and higher operation efficiency should be developed under exist constructions level in China.