Client: Elif Group Energy
Status: In Progress
Installed Capacity 5 MW
Sedef HEPP is a diversion type hydroelectric power facility that collects water from two different branches via its tyrolean weirs at the high elevations of Deliçay. There will be two separate pipelines carrying water from two weirs to the Pelton turbines at the powerhouse.
The project mainly consist of Sedef-1 Weir which takes water at elevation of 557 m on Akçay Creek, Sedef-2 Weir which is located on 870 m of Güvercinlik Creek, two penstock lines and a powerhouse that has two Pelton Turbine units. The total length of penstock lines is 3 720 m. It is a spiral welded and buried steel pipe with the diameters of 0.7 and 0.9 m.
The project is located at a place where the settlement is dense. If the project was to be adopted with a classical formulation, a forebay or a surge tank and related access roads would have to be reconstructed. The negative environmental and social impacts of these constructions made a classical divergence type design impossible. The most feasible solution was to lay penstocks near the river and to convey the water to the turbines via these buried penstocks. With this approach, the project has become applicable, the environmental and social impacts have been reduced to the least possible extent, the construction period is shortened and a considerable cost saving has been ensured.