202.05MW/404.10MWh！国内首个采用半固态电池与钠离子电池技术的混合储能电站将开建

Core Viewpoint - The article highlights the successful bid by China Energy Construction Guangdong Institute for the EPC project of a new electrochemical energy storage power station in Guangdong, marking a significant breakthrough in mixed energy storage technology applications [1][2]. Group 1: Project Overview - The project is located in the Huashan Management Area of Shanwei City, Guangdong Province, and is the first domestic electrochemical energy storage power station to adopt a mixed technology route combining large-capacity semi-solid batteries and sodium-ion batteries [2]. - The new energy storage station will have a capacity of 202.05 MW and 404.10 MWh, along with a 220 kV transmission line [2]. Group 2: Technical Innovations - The energy storage system will be connected to the Shanwei power grid via a 220 kV transmission line, serving as an independent shared energy storage station to provide critical support for peak shaving in the Shanwei grid [3]. - The project will utilize a mixed energy storage operation mode, deeply coupling sodium-ion and semi-solid battery storage units to leverage the high-rate characteristics of sodium-ion batteries for frequency modulation and the high energy density and cycle life of semi-solid batteries for peak shaving [3]. Group 3: Benefits and Goals - Upon completion, the project is expected to significantly enhance the power supply capacity in the Shanwei area, effectively promote the consumption of regional renewable energy, and alleviate the pressure on the interconnection channel for offshore wind power in eastern Guangdong [3]. - The project aligns with Guangdong's energy structure optimization and the goals of carbon peak and carbon neutrality [3]. Group 4: Company Expertise - Guangdong Institute has been a pioneer in the research and development of megawatt and hundred-megawatt energy storage technologies, participating in the formulation of 27 international, national, and industry standards for energy storage technology, and holding 60 proprietary technologies and patents [3]. - The company has transitioned from "technology demonstration" to "engineering application" in the mixed energy storage field, continuously promoting high-quality development of the new energy storage industry [4].