During the "Twelfth Five-Year Plan" period, the city will carry out heating system reform, and new buildings and existing buildings with conditions will be charged with heating metering. In 20 12 years, the heating metering transformation of existing public buildings was basically completed, and heating metering charges were implemented; In 20 13, the two-step and three-step energy-saving residential building heating metering transformation was basically completed, and the heating metering charge was implemented. The residents' heat metering charge will be implemented on a large scale in 20 13, which is a prerequisite for the implementation of this policy.