Economic life cycle model for the cost of power grid line engineering project

Reasonable grid line engineering asset management is an important means for power companies to improve economic efficiency under the new electricity reform situation. Based on the whole life cycle theory, from the perspective of line asset acquisition, this paper put into use to the decommissioning of the whole process of cost perspective and analyzed the line project construction to decommissioning and scrapping of the whole process of the cost. Through the calculation of the whole life cycle of the smallest annual cost, to determine the line economic life, we constructed the whole life cycle of the grid line project economic cost framework, put forward the best decommissioning time of the grid line model, that is, the economic life model. A case study was conducted based on a project example from a certain power grid company in China. The research results of this paper can reduce the economic cost of operation and maintenance of power grid enterprises, improve the efficiency of input and output, and provide reference suggestions for optimizing the management of line engineering and other power assets of power grid companies.