Fengning Pumped Storage Power Station

The Fengning Pumped Storage Power Station is a pumped-storage hydroelectric power station about 145 km northwest of Chengde in Fengning Manchu Autonomous County of Hebei Province, China. Construction on the power station began in June 2013 and the first generator was commissioned in 2019, the last in 2021. Project cost was US$1.87 billion. On 1 April 2014 Gezhouba Group was awarded the main contract to build the power station. It was constructed in two 1,800 MW phases. It was completed in late 2021, and became the largest pumped-storage power station in the world with an installed capacity of 3,600 MW.

The lower reservoir will hold up to 66150000 m3 of water of which 41480000 m3 can be used for power generation. The upper reservoir will withhold up to 48830000 m3 of water of which 40610000 m3 can be used for power generation. Water from the upper reservoir is sent to the underground power station down near the lower reservoir.