Low-carbon city planning based on collaborative analysis of supply and demand scenarios

Abstract

With the proposal of carbon reduction goals of countries around the world, "green and low-carbon" has become a new key to urban development and construction. However, in the existing urban planning system, the energy planning mapped by carbon emissions has received less attention, and the main goal is often to ensure safe supply. There is less research on carbon emissions. Therefore, it is necessary to take the energy planning in urban planning as the breakthrough point to carry out research on green and low-carbon development and construction at the urban level in the " Carbon Reduction " era. First, a city in China was taken as the research object to evaluate the resource endowment and development potential of the target city. Then, the carbon reduction paths of target cities in the three fields of construction, transportation and industry were studied, and the carbon reduction potential in different scenarios was quantified. After that, the influence of electric power carbon emission coefficient on different carbon saving scenarios was studied through sensitivity analysis. Finally, the government's low-carbon urban planning and decision-making suggestions were given. The results show that the relatively effective way is to carry out large-scale promotion of ultra-low energy consumption buildings and electric vehicles on the demand side, and to build distributed photovoltaic and heat pump systems on the supply side. On this basis, with the introduction of additional 30% of foreign green power, the per capita carbon emissions of cities would be reduced to 1.5tCO2 in 2035. In this way, the target city can achieve the goal of carbon neutrality in advance. Therefore, the results of this study have certain theoretical reference value for the study of low-carbon urban planning.