Chan Ye Xin Xi Wang·2025-05-15 01:26Core Viewpoint - The concept of "shared energy storage" was first proposed in Qinghai Province in 2018, representing a new commercial model for grid-side energy storage, which is increasingly recognized as a vital approach for renewable energy consumption and stability in the power grid [1][2][4][16]. Industry Overview - "Shared energy storage" refers to independent energy storage stations located at key nodes of the power grid, serving all market participants in the region. These stations are typically built by third-party investors and provide services to other renewable energy plants while participating in electricity trading [1][2]. - In 2023, approximately 54% of new installations in the new energy storage sector were grid-side independent storage, with this market share expected to increase in 2024 [1][16]. Market Status - As of the end of 2024, the cumulative installed capacity of new energy storage projects in China reached 73.76 GW/168 GWh, marking a 130% increase compared to the end of 2023 [7]. - Lithium-ion batteries dominate the market, accounting for 97.1% of the installed capacity, although the share has slightly decreased due to the introduction of several large-scale long-duration storage projects [9]. Policy Environment - The shared energy storage model was first recognized in national policy in 2021, encouraging its development and market participation [11][12]. - Local governments, including those in Guangdong, Qinghai, and Shandong, have implemented supportive policies to promote shared energy storage, with specific requirements for capacity leasing agreements [13][14]. Business Models - Shared energy storage operates through four main business models: leasing storage capacity to renewable energy plants, participating in auxiliary services, engaging in electricity spot market trading for profit, and capacity compensation. Leasing fees are currently the primary revenue source for most independent shared storage stations [20]. Development Trends - Shared energy storage is one of the most active business models in the storage sector, driven by the demand for energy storage and grid stability. The sector is transitioning from pilot projects to large-scale, systematic, and industrialized development [22]. - The integration of AI, big data, and IoT technologies is expected to enhance the intelligence and operational efficiency of shared energy storage stations [22].