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TEPCO has a wide variety of tools and simulating softwares to assess environmental impacts associated with construction of transmission facilities. For example the three dimensional graphic CAD is giving a clear virtual landscape after the completion of structure construction. This is quite helpful in recognizing virtually how well matched the newly constructed facilities can be harmonized with surrounding environment and what can be the best alternative route for transmission lines. The dynamic response analyzing software for overhead lines will give clear guarantee on whether or not design strength meet the required levels for harsh weather conditions.

TEPCO has also developed system simulator software to evaluate the effects of line/equipment contingency in terms of entire system reliability and local overloading on lines, transformers and other serial switchgears.

They are the services offered by TEPCO to help utilities to produce optimum design and plans for both construction and network structuring.

Transmission Network
Planning

Planning

Generation Planning
  • Power Development Planning Assistant Tool (PDPAT)
System Planning (Bulk Power System) System Planning (Regional Power System) Power Development Planning Assistant Tool (PDPAT)
Power Development Planning Assistant Tool (PDPAT) is a power system analysis software developed solely by TEPCO. TEPCO has used and revised PDPAT with experience of its application for the power development plan for more than 30 years. PDPAT is used to analyze power supply capability and system operation cost by daily basis calculation.
Daily basis analysis can simulate operations of peak power stations, thus can evaluate the more accurate power system cost. With daily basis analysis, each power station can be simulated to start and stop within a day or rest during weekends according to the daily duration curve.

Main Functions:
  • Calculation of System Operation Cost (Capital, Fuel and O&M Cost)
  • Simulation of Daily, Weekly and Yearly Generation
  • kW, kWh and Fuel Balance (Monthly and Yearly)
  • Economic Calculation for Power Exchange
  • LOLE Calculation, etc.

(Sample)
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