宁夏：“超级充电宝”链动绿色未来

Core Insights - The article highlights the importance of new energy storage solutions in facilitating the green transition of the energy structure and ensuring the stability of the power grid [1][2] - The 100MW/400MWh compressed air energy storage project by Datang Zhongning is a significant development in this context, showcasing advancements in energy storage technology [1][2] Group 1: Project Overview - Datang Zhongning's compressed air energy storage project has a design efficiency exceeding 70%, with long storage duration, large capacity, and low unit cost, likened to a "super power bank" [1] - The underground gas storage facility is located 150 meters deep, using air as the storage medium, achieving zero carbon emissions and inherent safety [1] - Upon completion, the project is expected to generate an annual electricity output of 118 million kWh, sufficient to meet the annual electricity needs of nearly 100,000 households, and create tax revenue of approximately 45 million yuan [1] Group 2: Technological Advancements - The project faced challenges in selecting suitable sites for underground gas storage due to soft rock geological conditions, which were overcome through collaboration with top domestic research institutions [2] - The successful application of flexible sealing technology has significantly reduced the dependence of compressed air energy storage technology on geological conditions, marking a key breakthrough for the project [2] - This advancement not only lays a solid foundation for the project's implementation but also provides critical support for promoting compressed air energy storage technology in China's northern regions [2] Group 3: Future Developments - Based on the technical accumulation and practical experience from the Zhongning project, the company has completed a survey of potential energy storage sites across Ningxia, identifying four suitable locations for constructing 300MW-level compressed air energy storage projects [2] - The company has introduced an innovative model combining "green electricity direct supply + grid backup + surplus electricity online," successfully reducing the electricity price for data enterprises to 0.36 yuan per kWh [2] - This model not only bridges the collaboration gap between "source, grid, load, and storage" but also innovatively allocates energy resources, providing a replicable and scalable solution for new energy consumption and industrial upgrading [2]