New Hydroelectric Power Plant Büyükdüz near Trabzon / Turkey

New construction of a hydroelectric power plant on the Elmali and Tasoba rivers in northeast Turkey (Trabzon region). Construction of two reservoirs for daily compensation with intakes and fish pass, connection galleries, surge tank and forebay, penstock, power house, switchyard and transmission line.

Main Data

  • 2 reservoirs, intakes and desanders on the Elmali and Tasoba rivers with fish pass
  • Gallery lengthtotal = 12 km, Ø 4 m
  • Surge tank with forebay
  • Penstock DN2000, L = 1690 m in welded steel
  • Powerhouse:

    • QA =    16 m³/s
    • HN =    500 m
    • PA =    70 MW

  • 2 6-jet vertical Pelton turbines
  • 2 spherical valves DN1000, PN64
  • 2 generators 35 MVA
  • 2 closed circuit cooling water systems
  • 2 transformer units
  • Switchyard

Client

Ayen Energy Co. Inc., Ankara / Turkey

Consultant

IM Maggia Engineering Ltd, Locarno / Switzerland

Construction period

2008–2012

Construction costs

€ 80 million

Scope of services

Feasibility study, construction design, tender documents, realisation and project supervision, workshop tests, general site supervision