John Gleadow
BE(Hons), MEng, MMgt, FIPENZ, CPEng, IntPE(NZ)


  • Expert in the design, specification and testing of High Voltage Direct Current (HVDC), Power Electronic and System Protection Schemes

  • Specific areas of experience include:
    • HVDC inter-connectors
    • VSC HVDC converter specification and tender evaluation
    • HVDC control system design and testing
    • HVDC control system replacement
    • HVDC grid
    • HVDC capacity upgrade
    • HVDC factory testing
    • HVDC transformer thermal modelling
    • HVDC dynamic and overload ratings
    • HVDC wind-farm connection
    • STATCOM specification and testing

  • Project management of HVDC design, construction, upgrades and commissioning

  • Advice on high voltage power transmission systems

  • Detailed knowledge of the regulatory frameworks and economic principles relating to the provision of transmission services

  • Experienced in the provision of advice on:
    • Specification of Voltage Source Converters
    • Power system frequency control
    • Transmission planning
    • System operation
    • Dynamic cable rating
    • Variable line rating
    • Expert evidence and expert witness