The reservoir-type hydropower station has a reservoir to play the role of regulation and storage. Here, a medium-sized reservoir-type power station refers to a station with an installed capacity of ≥50 and <300 MW. The parameters of the hydropower station are set according to the design code standards, that is, the technical service life of small hydropower projects is 30 years, the technical service life of medium-sized hydropower projects is 50 years, and the technical service life of large hydropower projects is 100 years.