“Trebinje I“ HPP uses the water of the Trebisnjica River.
The HPP was commissioned in 1968 (2 units).
The most important characteristics of the “Trebinje I” HPP with the appurtenant structures are given below:
- Reservoir
| Total volume | 1,277.6 million m3 |
| Active volume | 1,074.6 (1,060.6) million m3 |
| Maximum operating water level | 400.00 m a.s.l. |
| Regular water level | 384.00 m a.s.l. |
| Minimum operating water level | 351.3 (352.0) m a.s.l. |
| Mean inflow | 71 m3/s |
- Dam
| Type | gravity, arched |
| Construction height | 123 m |
| Spillways | lateral, 2 spillway fields with segmented gates |
| Bottom outlets | 2 x 2.5 m diameter |
- Conduit
| Number of penstocks | 3 |
- HPP
| Type | non-diversion |
| Maximum gross head | 103.5 m |
| Installed discharge | 3 x 70 m3/s |
| Installed power | 2 x 54 + 60 MW |
| Mean annual electricity generation | 370-420 GWh |
| Number of units | 3 |
| Turbine type | Francis |
(Source: HET Web site)
