Research on Carbon Emission Assessment Methods and Demonstration Applications for Low Carbon Blocks

Based on a low-carbon perspective, creation and evaluation methods of low-carbon blocks was established. Two major carbon reduction areas contain five key carbon reduction technologies were identified, including building and infrastructure, focusing on building energy efficiency, renewable energy utilization, green transportation, solid waste treatment, water resource utilization, and carbon sequestration. Calculation methods of carbon emission were also clarified. Using the "1+N" multi-scenario comparison, the carbon reduction potential analysis of single technology and combination technology were carried out, and the carbon reduction technology combination scheme of low-carbon blocks was built. A comprehensive evaluation model combining quantifiable factors and non-quantifiable factors was proposed, which provide a calculation tool for the comprehensive evaluation problems of calculation methods, cost increment, operation and maintenance. The feasibility and scientificity of the method were verified by a practical case in Shanghai. Through the demonstration construction of nearly zero-energy building, and the installation of roof photovoltaic and new energy vehicle charging piles, the practical case’s goal of carbon reduction was successfully achieved. The methodology and model can provide a theoretical basis for designers, developers and consulting organizations in both new and existing projects.