702 MW Dniester HPP-1 (built during 1975-1983) is the second of five hydropower plants that were stipulated by "Scheme of complex usage of water resources of the Dniester River". The main feature of the hydro scheme is a powerhouse of run-of-river type at high head (up to 55 m) that has the spillways above the turbine hall. Such feature allowed avoiding the construction of separate spillway dam.
From 1997 till 2002 the first stage of rehabilitation of the HPPs operated by Ukrhydroenergo PJSC was completed; and in 2006 the second stage of rehabilitation started. The rehabilitation also included the rehabilitation of Dniester HPP-1 equipment.
Within 2nd stage of Rehabilitation HYDROTECHPROJECT Ltd. accomplished the following works:
- Rehabilitation of the earth-and-rock-fill dams core. Detailed design, 2015-2017