Annual carbon emission calculation and green technology exploration of the green campus based on comprehensive energy

Chinese universities have the characteristics of a dense population and high per capita energy consumption. Quantitative analysis of campus carbon emissions, research on the characteristics of campus carbon emissions, and exploring the potential for campus emission reduction have become effective carbon reduction paths for universities. Taking a university in Shanghai as an example, based on the set organizational boundaries, carbon emission sources are determined and classified, and the most suitable carbon emission factors are selected for them. Activity data on relevant carbon emission sources is collected through on-site research, and the emission factor method is used for carbon emission accounting and analysis. Finally, by analyzing the current carbon reduction status of existing green technologies, feasible carbon reduction potentials of green technologies are explored to optimize campus carbon reduction strategies. The results show that indirect emissions generated by electricity are the main source of its carbon emissions, accounting for 89.9% of the total carbon emissions. The utilization of renewable energy and carbon sequestration through green plants offset at least 69.75% of the total carbon emissions on campus. In addition, promoting the centralized opening of self-study rooms, improving the shading system of graphic and text centers, and implementing energy-saving renovations for elevators can achieve energy efficiency rates of 76.12%, 20%, and 37.73%. The results of this study provide valuable references for the development of carbon emission inventories for new green campuses, carbon emission accounting, and the construction of low-carbon pathways for universities.