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    Addressing the many improvements in cable installation, whether trenching, tunneling or horizontal boring.

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    Conversation during a tour in one of the 50Hertz substations and switching stations.
    Figure 1: Hastings, Michigan HDD contractor, Dig-It Inc utility crew installing distribution line in Southwest Michigan.
    Photo by Dmitry Kalinovsky, Dreamstime
    A surveyor peers through a theodolite at an outdoor construction site. Underground obstacles must be considered when burying power lines.
    Photo by 69915530, Dreamstime
    CEPCI and Haley & Aldrich coordinated with relevant agencies, such as the U.S. Fish and Wildlife Service and the South Carolina Department of Natural Resources, to protect coastal seagrass areas during project construction phases.
    Petra
    Petra
    Foot Shaft

    Highlights

    Extensive use of directional drilling equipment helped to accelerate the effort to replace aging overhead lines with underground circuits.
    Installation Techniques

    Remote-Area Reliability at a Reasonable Cost

    Aug. 6, 2021
    WEC Energy Group replaces overhead lines with underground circuits, reducing outage minutes by 97% in remote areas of Northern Wisconsin.
    Trenching Sled
    Intelligent Undergrounding

    Underwater Sled: JCP&L Replaces Transmission Line with New Trenching Method

    Aug. 4, 2021
    Special underwater trenching sled used for the first time to help bury the new transmission line.
    Cable works underway in Shetland.
    HVDC

    Shetland HVDC Link Project Onshore Cable Installation Now Underway

    July 21, 2021
    Work to install 10 km of underground cable marks a milestone for the 600-MW Shetland HVDC project.
    Picture Of Tunnel Extension
    Installation Techniques

    Nontraditional Undergrounding: WEC Energy Group's Zoo Interchange Project

    June 30, 2021
    The Wisconsin Department of Transportation began a multiyear effort to increase capacity and improve the safety of the interchange. As a result, two of the electric transmission...
    Penelec Underground Cable News Web
    Installation Techniques

    Penelec to Rejuvenate Underground Cable to Help Enhance Service Reliability

    May 17, 2021
    Injection process will extend life of older underground electric lines in Erie neighborhood.
    EDM International Inc., Regional Government of Andalucia, Biodiversity Consultant, MME BirdLife
    Overhead Transmission

    Proper Retrofitting Protects Wildlife

    May 24, 2017
    The installation of cover-up material helps to prevent wildlife from conductor contact.
    Photo courtesy of Air2
    Aeronautics, UAV, aerial imaging
    Transmission

    Aeronautics Is a Game Changer

    March 27, 2017
    Utilities are using aerial applications to help improve their bottom line.
    Con Edison infrared underground
    Smart Grid

    Applying Infrared to the Underground System

    Dec. 21, 2016
    Con Edison uses infrared technology to enhance cable inspections, which result in a safer and more reliable network.
    NV Energy service reliability sensors
    Distribution

    Situational Awareness Offers Grid Benefits

    Dec. 20, 2016
    NV Energy uses line sensors to improve distribution service reliability.