Zhenjiang Eastern Grid Energy Storage Power Station Design Case

This document presents a design case analysis of the Zhenjiang Eastern Grid Energy Storage Power Station, a 101MW/202MWh project comprising eight stations. It highlights the role of energy storage in enhancing grid stability, especially after the shutdown of three 330MW units at Zhenjiang Jianbi Power Plant and delayed commissioning of gas turbine units, which created a power supply gap during the 2018 summer peak. The project uses lithium iron phosphate batteries from suppliers like CATL and Zhongtian Technology, with systems including BMS, PCS, and monitoring for peak shaving, frequency regulation, and voltage support. The operation strategy involves multiple charge-discharge cycles during off-peak and peak periods. The document also discusses energy storage positioning across generation, transmission, distribution, and customer segments, and offers recommendations for future projects. It underscores the expertise of Jiangsu Power Design Institute in designing large-scale grid-side energy storage solutions to improve power supply reliability and integrate renewable energy.