Research on Comprehensive Evaluation of Near-zero Carbon Emission Parks Based on Variable Weight Theory

Abstract

Near-zero carbon emissions are the further deepening and implementation of low-carbon emissions and a dynamic process constantly moving towards zero carbon emissions. With the carbon formation life cycle as the core, the low-carbon park is divided into smart parks and ecological parks. They are starting from the four elements of planning, near-zero carbon technology, carbon emission management, and environmental health, and forming an index system architecture according to the park’s carbon emission traceability tracking system. When the park is in different stages of near-zero carbon development, the internal differences of evaluation indicators are also different. The constant weight evaluation method cannot reflect the impact of each indicator on the development of near-zero carbon, which will affect the accuracy of the evaluation results. By introducing variable weight theory, a penalty variable weight model is constructed, and the model is applied to the case park. Comparing the results of the constant-weight evaluation and variable-weight evaluation, it can be seen that the evaluation results of the variable-weight evaluation model are easier to distinguish the development level. The verification results show that the variable weight evaluation method is more suitable for the dynamic characteristics of near-zero carbon development.