The experiment shows that the optimal configuration for photovoltaic energy storage is 10 045 batteries + 687 244 supercapacitors, with a cost of 3. 452 × 10 5 yuan and an energy loss of less than 5%. CS-PSO has similar costs but lower losses and faster convergence compared to. . Huawei's Smart String Grid-Forming ESS ensures robust protection through five layers of integrated safety design, from individual cells, battery packs, racks, systems, and the grid. Leveraging AI-driven optimization, VPP integration, and intelligent energy management platforms, we deliver safe, efficient, and scalable energy storage. . In this study, the combination of crossover algorithm and particle swarm optimization—crossover algorithm-particle swarm optimization (CS-PSO) algorithm—to optimize photovoltaic hybrid energy storage scheduling, improving global search and convergence speed, is discussed. Firstly, an introduction to the structure of the photovoltaic–energy storage system and the associated tariff system will be. . The AES Lawai Solar Project in Kauai, Hawaii has a 100 megawatt-hour battery energy storage system paired with a solar photovoltaic system. Sometimes two is better than one.