Research on the investment potential of energy-saving and low-carbon buildings under the carbon emission reduction target

Abstract

Abstract The research on the carbon emission reduction investment potential of energy-saving and low-carbon buildings is of great significance for realizing its popularization and even carbon neutrality in the building industry. Research on carbon emission reduction investment potential of energy-saving and low-carbon buildings from the perspective of investment developers, introducing marginal abatement cost for carbon reduction correlation analysis of energy-saving and low-carbon buildings, defining the connotation, calculation boundary and calculation method of each parameter in the calculation formula, and considering the impact of carbon trading price on the carbon emission reduction investment potential of energy-saving and low-carbon buildings comprehensively, proposing the investment potential value of carbon reduction technology for the first time to measure the carbon emission reduction investment potential of energy-saving and low-carbon buildings. Taking three different energy-saving target design schemes of zero-energy experimental building Sunflower as examples, taking the design schemes of ordinary energy-saving buildings as the benchmark, comparing and analyzing the carbon emission reduction investment potential of passive ultra-low energy buildings and zero-energy buildings using two different heating and air-conditioning systems, namely solar radiant panel system and ground source heat pump system, furthermore, the sensitivity analysis of the main factors of zero energy building is carried out to determine its improvement and upgrading ways. The results show that passive ultra-low energy consumption buildings are energy-saving and low-carbon buildings with relatively good carbon emission reduction investment potential, which is consistent with the relevant promotion policies of energy-saving and low-carbon buildings issued by the Chinese government, and verifies the applicability and effectiveness of this research method. Besides, an effective way to improve the carbon reduction investment potential of zero-energy buildings is to significantly reduce the construction costs of their renewable energy systems while minimizing their carbon emissions during the construction and demolition phases.