Cable Engineering

LOC Renewables provides market leading consultancy services for cable installation studies and vessel mobilisation. Our involvement in the renewables market originally evolved in 2008 from engineering and design support for cable installation contractors.

135 Offshore Wind
16 Countries
41GW+ Capacity

Since then, we have developed an ingrained understanding and knowledge of the practicalities and complexities of cable lay operations, to the extent that we are able to apply our knowledge to advise on the design and conversion of cablelay vessels.

Submarine Cable Installation Services 

LOC Renewables’ operational-focussed submarine cable installation services include skidding moorings, and cable lay and pull, analysed in simulations using Orcaflex – the industry standard software applied to these operations.

We have also developed our own tool for automating the pre- and post-processing of cable installation analyses, allowing us to handle an increasing number of environmental cases, as requested by the Marine Warranty Surveyors (MWS).

Hydrodynamic Analysis, Shipyard Support, Project Management 

Our capabilities cover a wide range of disciplines, from hydrodynamic and structural design analysis through to concept deck layouts and shipyard support and project management.

Such services include:

  • Concept design and design specification for cable lay vessel conversions including stability, powering and motions response calculations, machinery selection and DP (dynamic positioning) system layout, basic design, shipyard selection, detailed design review and stability and DP2 FMEA documentation
  • Hydrodynamic analyses for cable lay and pull-in operations, ranging from vessel skidding and survival mooring analyses to transportation and shallow water site-specific seakeeping RAOs analysis
  • Cable lay analyses including quasi-static and full dynamic analyses
  • Foreshore pull-in analyses
  • 1st and 2nd end WTG/OSS cable pull in analyses
  • Seabed stability analyses

Key Contacts

Naval Architect

London, Longitude

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Renewables Lead, Longitude

Exeter, Longitude

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Marine Engineer


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News & Events View All

Jieyang Shenquan 1 Offshore Windfarm Contract Win – A 2nd Recent Renewables Contract Win for LOC China

LOC is pleased to announce it has won a contract to provide Marine Warranty Services to support the development of the Jieyang Shenquan 1 OWF, located in the…

Marine Warranty Survey Contract Win for Greater Changhua 1 & 2a Export & Array Cables

LOC is pleased to announce that it has been awarded by Ørsted a contract to provide Marine Warranty Survey services (MWS) for the Greater Changhua 1 &…

Longitude Singapore worked on the Basic Design for a New Build Cable Lay Ship for Taiwan’s Offshore Wind Industry

Longitude Engineering (Longitude), an LOC Group company, is pleased to announce it has provided concept and basic design services, as well as construction specification for yard…