Client: Kayi Construction
Installed Capacity 26MW
Forebay with Pondage
Long Water Conveyance Line
Buyukbahce HEPP and Bagbasi HEPP are both diversion type hydropower facilities located in Eastern Anatolia Region within the border of Erzurum province over the Katikli Creek. Buyukbahce HEPP makes use of the head between 1,575 m and 1,355 m and Bagbasi HEPP makes use of the head between 1,355 m and 1,151 m of Katikli Creek.
Buyukbahce HEPP is designed to produce energy by diverting the flows of Katıklı Creek with the weir to the powerhouse located at the tailwater elevation of 1 355 m. Bagbasi weir located just at the downstream of Buyukbahce HEPP is designed to divert the outflows of Buyukbahce HEPP and flows of the sub basins to the Bagbasi powerhouse at tailwater elevation of 1 151 m. Buyukbahce HEPP project is composed of a diversion weir, 2,860 m long GRP pipeline, 6 590 m long U-PVC pipeline, a forebay, 456 m long penstock and a powerhouse
Similarly Bagbasi HEPP project contains a diversion weir, 2,070 m long GRP pipeline, 11 280 m long U-PVC pipeline, a forebay, 356 m long penstock and a powerhouse. By selecting the pipes in various diameters, the shipping charges are reduced considerably. The forebay of Buyukbahce HEPP project is designed to have 50 000 m3 active storage for daily regulation. Thanks to this design, low regimes of flow are stored at the forebay and can be turbined at peak hours. Being located at the downstream of Buyukbahce HEPP, Bagbasi HEPP can take the advantage of this storage capacity as well. By this means, the need for storage of both facilities is solved with just one reservoir. Both powerhouses have two equal capacity horizontal axis Francis turbines.