Abstract:In the process of China’s rapid urbanization, in order to promote the work of carbon neutral pathway planning at the city level and take corresponding actions as soon as possible, it is necessary to focus on how to set energy policy’s goals in urban electricity, transportation, industry, building and other sectors. Therefore, taking Guangzhou as the object, the Guangzhou Energy Policy Simulator (EPS-Guangzhou) model is built to simulate the energy consumption and carbon emissions of Guangzhou by 2050 by setting the baseline scenario, policy scenario and carbon neutral scenario. And then the carbon emission reduction potential of the key sectors is analyzed to evaluate the emission reduction contribution of various policy measures under the carbon neutral scenario. The research results show that under the carbon neutral scenario, Guangzhou's energy consumption will peak in 2030, and its carbon emissions will peak in 2026. By 2050, Guangzhou's carbon emissions will drop to 8.48 million tons, 6.11 million tons of which will be from the transportation sector. The decarbonization of electricity system will be the most important way to achieve carbon neutrality in Guangzhou, with the other sectors in descending order of carbon reduction potential being transportation, industry, hydrogen and building sectors. The five policies contributing the most to cumulative emission reductions of the carbon neutral goal will be zero carbonization of power systems, improvement of energy efficiency standards in the building industry, substitution of biofuels in the transportation sector, improvement of industrial energy efficiency standards, and the increase in the proportion of sales of hydrogen fuel vehicles.