Analysis of Factors Affecting Power Grid Investment Based on Johansen Cointegration Analysis Theory

The power grid is one of the foundations of national economic construction. Considering the future development trend of power grid and power market, and the important challenges of grid investment decision, this paper mainly studies various factors affecting grid investment from two aspects: internal and external. Therefore, the grid enterprises can accurately grasp the investment ability, make reasonable investment decisions, increase the profit margin, and adapt to the new situation of power development. The ARMA model and Johansen cointegration analysis theory of grid investment are used to analyze the relationship between power grid and various influencing factors, and the relationship between influencing factors and grid investment is obtained. The validity of this relationship is demonstrated by using data from the State Grid Corporation of 2005–2015. It is of great practical significance for grid companies to further understand the factors affecting investment and how to find effective ways to make investment decisions.