The Heimifeng Pumped Storage Power Station is located in the hills 25 km (16 mi) north of Changsha in Hunan Province China. It is a pumped-storage hydroelectric power station with an installed capacity of 1200 MW. It was constructed between 2005 and 2009 with the generators being commissioned in 2009 and 2010. The station generates power by transferring water between an upper and lower reservoir.