instance, about 170,000 kWh is saved per annum by improving the energy efficiency of air-conditioning and ventilation
systems. Choosing 0.8825 kg.CO2 e/kWh as the carbon emission
factor for the city of Shanghai (National Development & Reform
Commission of China, 2009), the GHG emissions reduction is
about 150,000 kg CO2e every year by using Equation (2). Detailed
information of cutting energy use and carbon emissions through
technical measures is presented in Table 2.