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Temporary AtoN references

Over the years we have been involved in a number of project to supply temporary Aids to Navigation solutions, not related to Decommissioning. Typically these systems are used during the installation of new offshore structures.

Reference 1: Marking monopile foundations for Meteo Masts

  • Client: Large international engineering firm
  • Year: 2013
  • Location: Southern part of North Sea
  • Structure: 2 monopiles, which were the foundation for Meteo Masts for Offshore Wind
  • Duration of marking: 4 months
  • Scope: Design, manufacturing and delivery of single lift skids, including batteries, marine light, fog signal, AIS and racon
  • Power supply: primary cells
  • Challenges: skids to be installed in splash zone; only 7 weeks from first call to delivery onboard installation vessel
  • Status: project completed
Skids on deck of the heavy lifting vessel prior to installation

Reference 2: Marking of test platform heavy lifting vessel

  • Client: Allseas Engineering
  • Year: 2015
  • Location: Southern part of North Sea
  • Duration of marking: initially 1 year, turned out to be continuously (the system is still running)
  • Scope: Design, Manufacturing, Assembly and Delivery of a fully autonomous system to mark two configurations of the platform (with and without topside), with marine lanterns and fog signal
  • Power supply: batteries charged by means of solar power
  • Challenges: changing configuration of the platform because of testing of the vessel; low elevation of jacket above sea level, resulting in equipment being in the splash zone or even hit by waves during bad weather conditions
  • Status: project completed
Main and subsidiary skid during maintenance visit

Reference 3: Marking jacket offshore substation (OSS) for Offshore Wind Farm (OWF)

  • Client: Offshore construction firm
  • Year: 2018
  • Location: Southern part of North Sea
  • Scope: Supply of fully autonomous single lift Aids to Navigation system, to include marine lanterns, fog signal, fog detector and remote monitoring
  • Power supply: batteries, charged by means of solar power
  • Challenges: nothing specific
  • Status: project completed
Skid on small deck at front of OSS. Picture courtesy of HSM and SHL.

Reference 4: Marking of jackets for new platforms in Venezuela

  • Client: Heavy lifting company
  • Year: 2016
  • Location: Offshore Venezuela
  • Scope: Supply of fully autonomous single lift Aids to Navigation system, to include marine lanterns and fog signal
  • Power supply: primary cells
  • Challenges: very short time frame to deliver, skids were available from stock
  • Status: project completed