Hydropower facilities / Hydropower plants (HPP)

Dnieper HPP

Dnieper HPP (DneproGES) includes two hydropower plants: Dnieper HPP-1 and Dnieper HPP-2.

Dnieper HPP-1 is the oldest hydropower plant of the cascade on the Dnieper River (commissioned in 1932). Post-war reconstruction of the HPP was done in 1947, and the power plant was put into operation in 1951.

Construction of the second stage (Dnieper HPP-2) was carried out from 1974 to 1978, and in 1978 Dnieper HPP-2 of 876.6 MW installed capacity was commissioned.

Since 1996, the complex rehabilitation of the Dnieper cascade of HPPs has started.  The rehabilitation included reconstruction and replacement of hydropower, electrical, and auxiliary, mechanical and sanitary equipment of the HPPs.  From 1997 till 2002 the first stage of rehabilitation was completed; and in 2006 the second stage of rehabilitation started.

The main goals of rehabilitation were to extend the operational period of the hydropower plants, to increase their capacities, output, reliability and safety, to fulfill the requirements of environmental protection, to improve the quality of electricity produced due to the improvement of control system, to create modern working conditions that meet current regulations.

The design of modernization and rehabilitation of Dnieper HPP-1 included modernization of hydropower equipment with replacement of runners and mechanisms of vertical Francis-type turbines. The design of modernization and rehabilitation of Dnieper HPP-2 also included the replacement of a propeller-type hydro units for Kaplan-type hudrounits.

Scope of work envisaged under the contracts:

  • rehabilitation feasibility study (Iand II Stage);
  • rehabilitation program elaboration for rehabilitation design of the HPP
  • rehabilitation design of the HPP;
  • approval of technical part of bid documents for equipment supply;
  • detailed design engineering on equipment renovation and hydro structures reconstruction;
  • co-ordination of design solutions on civil work and on technological equipment modernization;
  • design supervision over rehabilitation.

Main features of the project

 

Before rehabilitation

After rehabilitation

Installed capacity:

- Dnieper HPP-1, MW;

- Dnieper HPP-2, MW;

- Total (HPP-1+HPP-2), MW

 

585

876,6

1461,6

 

648

900

1548

Unit type:

- DnieperHPP-1

- Dnieper HPP-2

 

Francis

Propeller-type

 

Francis

Kaplan

Number of units:

- Dnieper HPP-1

- Dnieper HPP-2

 

9

8

Max head, m

38,2

Mean annual output

- Dnieper HPP-1, GWh

- Dnieper HPP-2, GWh

 

1534

2209

 

1634

2271

Discharge:

- Dnieper HPP-1, m3/s

- Dnieper HPP-2, m3/s

 

2150

2860

Live storage, km3

0.85

Surface area of tde reservoir at NWL (normal water level), km2

410

Surface area of tde reservoir at DWL (dead water level), km2:

204

Dnieper HPP consists of the following main structures: power house of Dnieper HPP-1, power house of Dnieper HPP-2, concrete spillway dam, shield wall, blind gravity dam, switch yard, shipping lock.