Facilities for a Stable Supply of Electricity

  • Electricity Flowchart

    TEPCO generates electricity at hydro, thermal, nuclear and renewable energy stations, with this electricity passing through transmission lines, substations, distribution lines, and other equipment before reaching our customers.

  • Power Transmission Lines

    Power transmission lines function to deliver electricity from distant power stations to our customers.
    These lines are for transmitting large amounts of electricity in a stable and efficient manner.

  • Substations

    Substations control voltage in order transmit high-quality electricity with little loss.
    There are 1,614 substations within the TEPCO Power Grid’s service area (as of end of March 2017) that perform functions such as voltage step-up/step-down and frequency regulation.

  • Distribution Lines

    Distribution lines serve as the final paths through which electricity reaches our customers from remote power stations.
    These well-known facilities ensure a stable supply of electricity with a suitable voltage for our customers.

  • Communication Lines

    Communication lines are power transmission equipment used for information transmission in order to provide a stable supply of electricity by adjusting the output of power stations and other facilities, and controlling power facilities in order to achieve a balance between the supply and demand of electricity.

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