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Construction Operation & Maintenance

Hydro Power

Field of Competence ( Hydroelectric Power Projects )
For hydroelectric power projects, TEPCO engineers confidently offer services and support as described below:

Power Economy
  • Economic and financial analysis
  • Advice in management and operation
  • Project implementation promotion (BOO, BOT)

Site Surveys
  • Stream gauging on rivers
  • Water quality analysis
  • Topographical survey
  • Geological survey
  • Environmental monitoring and analysis
  • Social monitoring and analysis

Hydrological Studies
  • Flood studies
  • Estimation of inflow
  • Operation study based on inflow data
  • Optimization of the potential site

Pre-feasibility and Feasibility Studies
  • Potential site survey
  • General layout and planning
  • Basic design
  • Cost estimation
  • Economic and financial analysis
  • Hydrological study and site survey

Detailed Designs
  • Detailed design of all structures and equipment for the project such as:

    Concrete dam, RCC, earthfill dam, rockfill dam, arch dam, underground powerhouse, semi-underground powerhouse, surface powerhouse, Francis turbine (including Francis pump turbine), Pelton turbine, propeller turbine, generators, transformers, ancillary equipment, sub-stations, transmission lines, headrace tunnel, tailrace tunnel, pressure tunnel, shaft, surge tank, intake, tailrace, spillway, gate and penstock, other structures and equipment

  • Hydraulic model test
  • Efficient operation study
  • Behavior and stability analysis under static or dynamic load
  • Detailed cost estimation
  • Preparation of tender documents and drawings
  • Detailed design of road, bridge and tunnel for relocation and access road
  • Detailed design for environmental countermeasures

Construction Supervision
  • Assistance with tender procedures
  • Assistance for the evaluation of contractors
  • Assistance with negotiation and contract
  • Construction supervision
  • Inspection and management
  • Assistance with commissioning and acceptance tests
  • Assistance with environmental and social aspects

Operation and Maintenance
  • Periodical civil and electrical maintenance for efficient operation
  • Forecast of rainfall and inflow and spillway gate operation
  • Monitoring and stability investigation for rehabilitation and improvement
  • Instructions for efficient reservoir operation

Technology Transfer
  • On-the-job-training in F/S, D/D and C/S stages
  • Training operation and maintenance
  • Training in theoretical and practical techniques
  • Site visits to other types of power plants for diversification and new skill development

Technical Support
  • Dispatch of experts in each phase of the project

(Consulted Projects)
“CDM Feasibility Study on Tatang Hydroelectric Site, Vietnam (2005)"
“Development Option Review for Ulu Terengganu Hydroelectric Power Plant Project, Malaysia (2003)”
“Shanxi Xilonchi Pumped Storage Power Project, China (2002)”