Comprehensive Evaluation and Optimal Selection of Carbon Reduction Technologies for Power Transmission and Transformation Projects

In order to grasp the intrinsic relationship between carbon reduction and cost and benefit of power transmission and transformation projects, the cost-benefit evaluation index system of power transmission and transformation projects is established. Hierarchical analysis is used to determine the weight of each indicator on the cost and benefit, and then entropy weighting method is used to standardize the indicators and correct the weights, so as to establish a more perfect comprehensive evaluation system for power transmission and transformation projects. Based on this system, eight alternative carbon reduction programs are proposed, and the whole life cycle net present value and cash flow of the eight transformation programs are calculated one by one and the comprehensive scoring of the programs is carried out. In the final guideline layer, the highest weighting is given to the technology of "adopting new transformers", and the retrofit based on Program 7 is expected to achieve higher efficiency through lower costs.