Research On Investment Decisions Of The Power Transmission Project On The Theory Of Whole Life-Cycle

The power transformation engineering investment always is the important component of the electric enterprise investment in the fixed assets. Investment decision’s success or failure relates the electric power business capital using efficiency and enterprise’s market cimpetitiveness. At present, we pay great attention in the disposable invested cost expense in the investment decision stage, and underestimate the costs in the operation phase, which influence investment decision accuracy seriously. The power transformation engineering investment cost inclde all the costs in the whole life-cycle time from the power substation equipment plan, the purchase, the use until discards.This article applies the whole life-cycle cost theory in the research of the power transformation engineering, which realized scientific, rational, objective and comprehensive evaluation for the power transformation engineering. First, we explaine the substation construction method commonly used in investment decision, and summarize the problems in the power transformation engineering investment decision. Secondly, we analyzed the whole life-cycle relevant theory, and find an effective way that we use whole life-cycle cost theory in the decision stage to resolve the issues. We establish a power transformation engineering investment decision-making model based on LCC theory after the analysis of the calculation of the life-cycle cost, and analyze the sensitivity factors. Finally, we cited a power transformation engineering instance to prove that the model can analyze the costs from different options, and reflect the differences. The model has practical value, and provide a favorable investment decision-making judgments.The investment decision method based on the LCC theory which involves all the costs from conception to discard of the power transformation engineering unify the multi-stage goal of the engineering to achieve the optimization of the entirety and the system, and meet the technical and economic indicators to make the power companies’long-term decision-making accurcy in the increasingly fierce market competition, and achieve the comprehensive advantages of costs and benefits effectively.