During periods of low demand, such as nighttime, the pump generators push water from the lower reservoir to the upper for use during peak hours.

[2] The building of the pumped-storage power plant is connected with the upper basin by 6-pressure reinforced concrete and metal pipelines with a diameter of 3.8 m. The upper basin was created at a height of 70 m above the level of the Kyiv reservoir with a useful volume - 3700000 cubic meters, where during the night decrease in energy consumption in the power system water is pumped.

Operating in pumping mode, the power plant fills the upper basin in 6 hours.

Vibration in different points of the hydro unit even with the optimal opening of the guide apparatus reached above the permitted.

Vibration studies of the main pump-turbine hydroelectric units of Kyivskaya HPP revealed the need to reconstruct the hydro-turbine equipment.

Stage II After the above reconstruction, the vibration characteristics of the hydraulic units were reduced to normal.

The frequency start system for hydraulic units GD-1, GD-3, and GD-5 in pumping mode was assembled and adjusted.