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Orpower IV 50 MW Geothermal Power Plant

Project Details

  • Project Name: Orpower IV 50 MW Geothermal Power Plant
  • Sector: Power
  • Client: Ormat, Box 68, Yavne 81100, Israel,
  • Location: Naivasha, Kenya
  • Contractor: Civicon Limited
  • Start Date: Sunday, 01 July 2012
  • Completion Date: Friday, 01 February 2013
  • Duration: 8 Months
  • Contract Value: $13,056,372
  • Project Scope:

    Construction of a 50MW geothermal power plant including all earthworks, civil works and mechanical installation

 

Earthworks

  • 200,000 m3 of  cut and fill earthworks in 8 weeks 
  • 60,000 m3 of earth fill tested to ensure the correct moisture content and compaction 
  • 2,000m of fencing 
  • 10,000 m2 of stone pitching, 
  • All drainage structures around the site
  • Site access roads (4”deep gravel, particle size 1”to1.5”)

Concrete Works

  • Construction of all concrete foundations for the Power Station 
  • 1700 m3 of concrete constructed in 5 months
  • QA/QC Testing: Cube tests

Structural and Mechanical Installations

  • All structural steel installation
  • All mechanical installations of two Ormat Energy Converters (OEC), gathering, production and injection piping systems installation and shut down tie-in activities (in 7 months) including steam turbines, generator, separators, cooling towers, insulation, firewater loop, well connections, preheaters.
  • 13km of steam pipes (16” to 42”) installed complete with pipe supports 

Plant on site

  • 10nr. Cranes 16T, 50T, 25T, 
  • 7nr. Generators 220Kva, 120kVA , 60kVA 
  • 70nr. Welding machines  
  • 1nr. Submerged Arc Welding
  • 3nr. Excavators 45T, 21T,  30T 
  • 2nr. backhoe wheel loader , 
  • 2nr. Carmix 3.5m3 
  • 3nr. Tippers 14T 
  • 2nr. Tele-handler 3.5T 
  • 2nr. Graders 14T
  • 3nr. 12T Vibratory rollers (sheep foot attachments)