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This paper uses statistical learning theory and big data analysis to study the energy consumption structure of China from qualitative and quantitative aspects during COVID-19 According to the domestic and foreign scholars' research on the optimization of energy consumption structure, the carbon emission factor is considered in the optimization of energy consumption structure Taking the minimum energy consumption cost and carbon dioxide emission as the objective function, the carbon dioxide emission is taken as the objective function, and the total energy consumption and various energy consumption proportions as the constraint conditions, the multi-objective planning method is used to evaluate the energy consumption structure of China The optimization model of source consumption structure is analyzed, and the medium and long-term energy transformation path and optimization model under low-carbon constraints are studied Combined with the experimental algorithms related to big data, it is concluded that China's economic development mainly depends on a large amount of energy consumption during the COVID-19 period On this basis, some suggestions are put forward to realize the sustainable development of China's economy and energy © 2020 - IOS Press and the authors All rights reserved

This paper analyzes the energy consumption simulation based on BIM by researching a lot of documents. BIM is used to construct various building models to conduct the comparative analysis. The horizontal sunshade of the building is 487 mm. When the heat transfer coefficient of outside window materials reduces, the annual energy consumption of per square meter drops from 237.78 k Wh/m2 to 206.89 k Wh/m2. BIM is used to assist the architectural design, which can directly analyze and design the energy consumption with strong practicab