Client: BM Holding
Installed Capacity 9 MW
Storage In Conduit
Pasa Hydropower Project is a diversion type hydroelectric facility that makes use of the head between 593 m and 512 m of Bolu Creek and started the commercial activity in 2010.
The project consists of weir structures, 6.000 m long reinforced concrete conduit, forebay, 700 m long penstock, powerhouse and tailwater channel. Silty clay alluvium deposit depth at the weir location is 16 m and removal of this deposit is economically not feasible. Therefore, weir structures were placed on deposit provided that bearing capacity of soil is high enough to support the foundations of structures, thereby avoiding the extra costs. Project is located in an area covered by dense vegetation and exposed to landslides and high seismic activity. In order to protect the conveyance channel from the risks mentioned above, the channel was designed as reinforced concrete conduit. The conveyance channel contains 300 m long reinforced concrete siphon resisting up to 4 atm pressure. Together with the forebay, the conveyance line can serve as a storage of 50.000 m3 volume to meet the demand for daily regulation. The powerhouse is semi-indoor type and includes two Francis turbines of different capacities increasing the rate of regulation.