HRSS Ltd specialise in route engineering, installing and protecting HVDC transmission and interconnector cables from 200km to 1000+km. We also delight in all related subsea project-engineering and interface matters.


for STATNETT SF/ TENNET BV (2006-2008) CHALLENGE: to install the largest HVDC interconnector in the world to date (2016). HRSS/HRGS...


(PFS) HVDC LIGHT SYSTEM for BP NORGE (2008 – 2011) CHALLENGE: to install and protect an HVDC Light offshore cable,...

Here are our HVDC services in a little more detail:

Marine Product Installations (cable lay and protection):

  • HVDC cables, flowlines and umbilical routes
  • Subsea remediation work
  • Subsea foundation preparations
  • o Seabed dredging
  • Operations planning
  • Shore-end pull-in and pull-in to platform
  • Knowledge of cable-manufacturing process
  • Guard vessel activities and operations
  • Maintenance and emergency marine repairs for operations

Quaternary Geology and Marine Seismic-Acquisition Specialist

  • Data interpretation for geo-hazards
  • Route and site survey data acquisition and interpretation
  • Subsea route engineering
  • Subsea preparation and installation operations
  • Stability survey data acquisition, including slope stability investigations
  • Seabed mapping

ROLES undertaken on a consultation or advisory basis:
Project Engineer, Subsea Engineer, Lead Project Engineer, Approved Offshore Technical Representative, Project Manager (with interface responsibilities), Company Offshore Representative (routing and survey), Project Geologist

Please call us with your query, we’d be happy to hear from you.