Engineering Consulting Services Phase 1, 2, 3 and 4 for Oni HPP Cascade on the River Rioni – Georgia

The Project is located in the Rioni River Basin in Northern Georgia. The objective of the Feasibility is to define optimum scheme and detail parameters for the implementation of Oni HPP Cascade, based on technical, geological, environmental and financial comparative analysis of different alternatives.

The study comprises four stages:
Phase I: Feasibility Study
Phase II: Preparation of Tender Documents of E&M Equipment
Phase III: Preparation of Tender Design
Phase IV: Preparation of Tender Documents of Civil Works (Except Tunneling)

Each of the two Oni Cascade Hydropower Projects will require construction of the following main works: 

  • Access roads
  • A concrete gravity weir incorporating flushing and spillway facilities
  • A headrace waterway comprising a power intake, a desander, a headrace tunnel, a pressure shaft, a pressure tunnel and a manifold
  • A surge tank
  • Powerhouse
  • A tailrace waterway
  • A switchyard
  • A transmission link to the national grid
ClientJSC Oni Cascade, Tbilisi
LocationGeorgia
Executionsince 2016
Services
Phase I: Feasibility Study
  • Site Inspection
  • Field Investigations (Sub-Contractors)
  • Comparative Assessment of Options
  • Selection of Structure Sites
  • Engineering Design and Optimization
  • Risk Assessment
  • Quantity and Cost Estimate
  • Procurement Planning and Scheduling
  • Financial Analysis
  • Presentation of Final Alternative
Phase II: Preparation of Tender Documents of E&M Equipment
  • Preparation of Tender Documents of E&M Equipment
  • Announcement of Tender
  • Assistance to the Client during tendering process
Phase III: Preparation of Tender Design
  • Additional Field Investigations, where deemed necessary
  • Hydraulic Model Tests (optional)
  • Engineering Tender Design (Update of Feasibility Design)
  • Update of Quantity and Cost Estimate
  • Update of Procurement Planning and Implementation Schedule
  • Update of Financial Analysis
Phase IV: Preparation of Tender Documents of Civil Works
  • Preparation of Tender Documents of Civil Works
  • Announcement of Tender
  • Assistance to the Client during tendering process

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