Economic Analysis Of Battery Energy Storage Technology Considering Different Business Investment Modes

As a bridge between renewable energy power generation and power network,energy storage technology can well solve the adverse effects caused by large-scale access to renewable energy power generation.Based on the research of related energy storage business models,this paper combines energy storage.The service value of the technology and the application scenarios propose the economic problems of the energy storage side investment mode,the grid side investment mode and the application battery energy storage under the user side investment mode.Firstly,the cost structure of battery energy storage technology is analyzed based on the full life cycle method.Secondly,the cost-benefit analysis method is used to discuss the economics of power storage technology on the power generation side,grid side and user side,and propose different business investment modes.The economic evaluation index of energy storage technology;then the comprehensive benefit evaluation model under three modes is constructed;finally,the cost and benefit of the three models are calculated and analyzed in detail based on actual examples.The calculation results show that the all-vanadium flow battery is more economical than the new lithium battery and the old lithium battery.It can be seen that although lithium batteries have been applied in many fields,it is unrealistic to use them as energy storage batteries for various commercial energy storage systems due to high cost.In addition,this paper focuses on the user-side investment model,the application of optimization of energy storage in the power grid is analyzed,and a non-inferior genetic algorithm is used to calculate the minimum rated power P and rated capacity E that need to be equipped when the cost of the energy storage system is minimized.