Present Condition Analysis on Typical Demonstration Application of Large-Scale Energy Storage Technology and Its Enlightenment

As the supporting technology and the key impetus for structural adjustment of energy resources and energy conservation and emission reduction, large-scale energy storage technology presents wide application prospects in the fields of power generation, transmission and distribution, power demand side, auxiliary service and grid integration of renewable energy sources. Hundreds of multi-type energy storage demonstration projects with capacities in MWs have been carried out home and abroad, and the related scope includes renewable energy sources, distributed generation and microgrid, power transmission and distribution, auxiliary services etc.. Through analyzing the basic situation of the existed large-scale energy storage demonstration projects, the technology type of energy storage and the focused application scope in academic and engineering study are discussed. From the prospective of the demonstration functions, main techniques and the funding, the technology concerns and the demands of different application modes on the performances of energy storage technologies are summarized. The promotion effect of related policies on energy storage technology is analyzed. Meanwhile, based on the previous analysis, the direction of industrialization development of energy storage in China is given.