300MW/600MWh！西南地区首座大规模混合型储能电站投运

Core Viewpoint - The Sichuan Mianyang Port Flag Energy Storage Project, China's first large-scale hybrid energy storage station in the southwest region, has commenced operation, showcasing innovative energy storage technology and addressing local grid challenges [1][3]. Group 1: Project Overview - The Mianyang Port Flag Energy Storage Project is located in Shima Town, Mianyang, Sichuan, and is divided into two phases, with the first phase featuring 100 MW/200 MWh of electrochemical storage and 15 MW/0.525 MWh of flywheel storage [3]. - This project is recognized as one of the first new energy storage demonstration projects in Sichuan Province and is a key construction project for 2025 [3]. Group 2: Technological Innovation - The project employs a hybrid energy storage technology combining electrochemical and flywheel systems, creating a dual assurance system of "millisecond response + hour-level support" [3]. - This innovative approach effectively alleviates the issues of insufficient capacity at the 500 kV substation and the singularity of power sources at 220 kV and below, enhancing the flexibility and reliability of the regional power grid [3]. Group 3: Impact on the Power Grid - The operation of the project will reduce the transmission power through the Mianyang load center in the western Sichuan region, thereby decreasing grid operation losses and improving voltage stability in the area [3].