1000V DC SPD is suitable for large photovoltaic power plants, especially in scenarios where higher voltage is required to reduce line loss and improve system efficiency. These systems are typically installed on open ground or on the roofs of large buildings. The 1000V system is widely used in industrial and commercial photovoltaic projects, especially in scenarios where self generated surplus electricity needs to be connected to the grid. These projects typically require higher voltages to improve power generation efficiency and reduce line losses.