The plant features 12 reversible pump-turbine units, each with a capacity of 300 MW, including two variable-speed units, bringing the total installed capacity to 3.6 GW. The Fengning Pumped Storage Power Station, the world’s largest facility of its kind, has commenced full operations with the commissioning of its final variable-speed unit on December 31. Located in Fengning County, Hebei Province, near Beijing and Tianjin, the plant is a key part of China’s renewable energy infrastructure, suppo...