Overlapping of the Svir river channel (Leningrad region). Launching the waters of the Svir River into a new channel. Concrete supply and pouring it into various blocks of a building object. Reinforced concrete dam prepared for the passage of water. Shields rise, water flows through sections of the dam. View of the building of the hydroelectric power station, gateway. Installation of a hydroelectric turbine. Substation territory. Installation of substation equipment; high-voltage masts with wires.