Model For Small Grid Enterprise

With the transformation of the market economy, the electricity industry has conducted a preliminary market-oriented reform. In recent years, the electricity industry is facing grim situation, the majority of the company’s assets-liability ratio increased year by year, the profit loss. Therefore, in order to ensure the healthy development of Grid enterprises, it is need to manage the project investment decision-making process effectively. The power supply company as an independent legal subsidiary, to make it link with the business development goals effectively, power grid construction in various special areas of investment must be closely linked with benefits. This thesis mainly study Grid enterprises projects portfolio model in special areas of investment, take the power supply company under the Chongqing Electric Power Corporation as an example of the empirical analysis, provide a management basis of Grid enterprises of the project investment decision-making.According to the Portfolio Theory, on the basis of the research of the domestic and foreign experts, study the project portfolio model of the subordinate power supply company of Chongqing Electric Power Company. First, departure from the investment ability of the company, analyze alternative project library, determine the power supply company’s project investment objective function and the constraints, and then build the project portfolio model. Next, analyze the operating conditions of the25company, divide the interval of the indicators’ operating values of the power supply company and then give the satisfaction score of each interval indicator.Take the Nanchuan company as an example, according to the operating conditions and investment ability of Nanchuan, build project portfolio model of Nanchuan and using Fuzzy Analytic Hierarchy Process to determine the constant weight of the target, then combined with variable weights theory, according to the Nanchuan company’s actual operating conditions to balance the constant weight, solving multi-objective decision-making model, get the Nanchuan company projects investment in various fields and determine the amount of investment in various fields.The project portfolio model of the Grid enterprises built in this thesis can achieve the lateral balance optimization of project investment in various fields. At the same time, it not only take the macro-control of the provincial Grid company into account in determining the weight of the multi-objective, but also consider the objective operation of the power supply company. From two angles determining the weight make the investment strategy of the Grid enterprises more scientific and rational. The model is able to optimize the investment approach of power grid construction and it has important practical significance to the development of the Grid enterprises.