The pumped storage hydropower station here has one reservoir to play the role of regulation and storage, considering the combination of different installed capacity scales. The construction parameters of the hydropower station are set according to the design code standards, that is, the technical service life of small hydropower station projects is 30 years, the technical service life of medium-sized hydropower station projects is 50 years, and the technical service life of large hydropower station projects is 100 years.