Project is located around Yeşilyurt village of Araklı district within Trabzon city which is inside Eastern Black Sea Basin. The Büyük and Küçük diversion weirs designed at 1563.0 m M.S.L are equipped with special design Coanda screens with 1.0 mm openings which are resistant against freezing under severe winter conditions. There exist no settling basins for each weir. During winter and late autumn access to weir locations is impossible therefore Coanda screen leads to continuous operation without any discontinuity caused by freezing.
Küçükdere weir is located just downstream of 30.0 m height fall where the scene is unbelievable. Diverted creek flow is transferred to underground headpond by buried corrugated polyethylene pipelines. The 1000 mm diameter 1009 m length penstock is also buried. There exist two horizontal two jet Pelton turbines manufactured by CKD Blansko inside power house where total installed power is 8.94 MW. The axes of runners are designed at 1097.50 m M.S.L.
All the major components of the project were designed underground and the main aim of the design was to minimize destruction of natural scene. Power house is constructed 25.0 m above creek level and special designed tail water pipeline discharges water from tail water chamber to creek.
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