The Dunhua Power Station became the first in China to achieve fully independent R&D, design, and manufacturing of 700-meter-level ultra-high-head, high-speed, large-capacity pumped storage units. The units have a rated head of 655 meters and a maximum head of 712 meters—ten times the height of Huangguoshu Waterfall. During the commissioning and trial operation of the first unit, key performance indicators (vibration, runout, bearing pad temperature, and noise) demonstrated excellence, with guide bearing runout consistently below 0.1 mm during stable operation, showcasing superior performance.