The power grid side electrochemical energy storage project is located in Fushan Town, Ningyang County, Tai 'an, Shandong Province, with a land area of 36,866.8 square meters and an investment of 1.3 billion yuan in the way. It is a power grid side electrochemical energy storage power station with a scale of 400MW/800MWh. The main equipment is lithium iron phosphate energy storage battery prefabrication chamber, integrated electrical room, PCS container, main transformer, etc. The energy storage system project scale is 400MW/800MWh, battery compartment 6.88MWh*120, PCS booster integrated compartment 120 sets, boost to 35kV, collected from the multi-circuit collector line to the booster station, and boosted to 220kV through 2*240MVA transformer. Through 220kV line access to State Grid Shandong Electric Power Company Ningyang Caishan 220kV substation.