Energy

In-Grid Operation

The Navy

Power Equipment

  • HTS can greatly benefit energy applications by being able to carry 300 times more current than comparable-sized copper wire


    Superconductors in Energy

    HTS can greatly benefit energy applications

    • 5 to 10 times more capacity than comparable conventional cables
      • Can be used in existing underground conduits, saves trenching costs
    • Much reduced right of way (25 ft for 5 GW, 200 kV compared to 400 feet for 5 GW, 765 kV for conventional overhead lines)
  • Superconductors in In-Grid Operation

    Several superconducting cables in in-grid operation

    Superconducting Power cables installed in:

    • Albany, NY (National Grid/Sumitomo/SuperPower)
    • Long Island (LIPA/Nexans/AMSC) – powering 300,000 households
    • Columbus, Ohio (American Electric Power/Southwire/AMSC)
    • Jeju Island, Korea (LS Cable)
    • Essen, Germany (Nexans)
    • Kuming, China (Innopower)
    • Yokohama, Japan (Sumitomo Electric)
  • Superconductors in Power Equipment

    • Superconducting generators and motors are less than 50% the size and weight of conventional equipment
      • High power wind turbines & off shore platforms.
      • Direct drive wind turbines – less maintenance
    • AMSC built 36.5 MW superconducting motor for the U.S. Navy
    • TECO-Westinghouse developing superconducting wind generators

    Conventional Motor 21MW
    180 tons

    HTS Motor 36.5MW
    75 tons


    • Fault Current Limiter – High efficiency alternative to air-core reactors and circuit breakers
      • Applied Materials installed high-voltage Fault Current Limiter (FCL) in Central Hudson, NY. Nexans installed several FCLs
    • Transformer – 50% reduction in size and weight; no oil (23,000 liters removed)
      • SPX developed 5/10 MVA superconducting power transformer
      • Siemens developing Transformers and Generators
    • ABB developing Superconducting Magnetic Energy Storage (SMES) system