甘肃储能项目对比实测：主动均衡是提升收益的关键！

Core Viewpoint - The Chinese energy storage industry is transitioning from "wild growth" to "high-quality development" in 2025, driven by policy changes that emphasize true profitability and the adoption of active balancing technology as a core solution [2]. Group 1: Performance Assessment - Energy storage systems must avoid revenue risks when certain performance characteristics emerge [3]. - Active balancing technology is crucial for addressing lifespan risks by monitoring cell status in real-time and redistributing energy among cells [5]. - The technology can mitigate four major lifespan risks, extending equipment replacement cycles, increasing operational revenue, and reducing cost inputs [5]. Group 2: Project Case Study - The Gansu Minle 40MW/80MWh energy storage project serves as a practical example of active balancing technology [8]. - The project faced capacity degradation, with actual battery capacity dropping to 70%-75% of initial capacity, leading to reduced operational efficiency and increased maintenance costs [6]. - Active balancing can correct cell inconsistency, slow capacity degradation, and enhance charge/discharge efficiency [7]. Group 3: Testing and Results - A comparative experiment was conducted to analyze the impact of active balancing on battery performance, with two battery cabins tested under different conditions [9][10]. - After 11 months, the cabin with active balancing showed a minor capacity decline of 0.90%, while the cabin without it experienced a significant decline of 6.74% [15][25]. - The active balancing cabin maintained better consistency and overall performance, while the other cabin's performance deteriorated significantly [25][26]. Group 4: Future Implications - As the electricity spot market expands, the demand for stable performance and long-term profitability in energy storage projects will increase [26]. - Active balancing technology will play a vital role in managing cell consistency and optimizing lifecycle costs, helping projects overcome challenges related to lifespan degradation and revenue shrinkage [26].