Hunan, Jiangxi and Zhejiang province have experienced“power curtailment”in the winter of 2020. On the one hand,it is due to excessive power demand. On the other hand, due to the unreasonable power supply structure, and the development of industrial user-side energy storage can help solve the issue of“power curtailment”to a certain extent. The deployment of energy storage on the industrial user side can not only alleviate the problem of grid power supply shortage, promote the consumption of renewable energy, but also reduce the industrial user’s electricity cost and obtain the peak-to-valley price yield. The development of user-side energy storage in Jiangsu province and related policies to promote the development of energy storage are studied firstly. Then, referring to the current industrial consumer electricity prices and peak shaving auxiliary service policies in Jiangsu province, the economics of battery energy storage of industrial user-side configuration of lithium-ion battery and full vanadium liquid flow battery are studied. Finally, some suggestions are provided for the development of user-side energy storage in Jiangsu province.