Test analysis for energy consumption of heating metering retrofitting project for existing residential buildings in Beijing

Investigates the heat meter data in heating metering retrofitting projects of 265 existing residential buildings during 2012 to 2013 in Beijing. The results show that the average heat consumption is 25.9 W/m2 in one heating season when the average indoor temperature is 21.04 ℃, which is more than the energy consumption index of two/three step energy saving buildings. Therefore, the building energy saving methods and measures need to be further explored.