Research On Power Grid Investment Carrying Capacity Based on Debt Ratio Limitation

— With the deepening of the energy Internet and digital revolution, new business forms and requirements such as integrated energy services, electrochemical energy storage and business environment optimization are emerging. Power grid enterprises should comprehensively consider the operation status of enterprises and the needs of emerging business development, accurately grasp the upper limit of their own investment carrying capacity, and formulate investment planning scientifically. In order to avoid the influence of excessive investment on the sustainable and stable operation of grid enterprises, this paper uses theories of technology and economics and financial management to build a model for measuring grid investment based on the limitation of asset-liability ratio. The case verification shows that, using this model, grid enterprises can evaluate their maximum investment capacity more objectively, providing a scientific basis for grid enterprises to make reasonable investment plans, and also providing a reference for other enterprises to calculate their investment capacity under the debt ratio limit.