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General enquiries
Tel. +45 7916 6666


Semco Maritime
Esbjerg Brygge 30
DK- 6700 Esbjerg

For your onshore locations:

Integrated telecommunication solutions

We have delivered telecommunication systems for offshore wind farms for more than 20 years. That makes us experts in the various solutions suitable for onshore locations.


Stable and reliable onshore telecommunication solutions are vital

One thing is to establish a safe and reliable offshore communication infrastructure within the wind farm area and this is typically centred around the offshore substation.

However, the communication lines need to be connected to the main-land and this is where the, very often neglected, onshore location comes into play.

In most cases the onshore location, whether it is an onshore substation, a marine coordination office or a transit area, is also a vital communication hub where all the offshore communication lines are connected to the onshore communication infrastructure.

This is a vital part of the communication setup. Without stable and reliable communication lines between the offshore wind farm and the onshore location, the marine coordination cannot do their job and all offshore activities are stopped until the communication lines are fully functional again.

Without communication there will be no operation.

Telecommunication systems for onshore locations:

Data networks

  • Network management and monitoring
  • Local Area Network (LAN)
  • Wide Area Network (WAN)
  • Wireless Local Area Network (WIFI/WLAN)
  • Real time clock (RTC)

Safety systems

  • Closed Circuit Television System (CCTV)
  • Navigational equipment and radar

Voice and video systems

Closed Circuit Television System (CCTV)

Radio systems

  • People and asset management system
  • VHF AM aeronautical
  • VHF FM marine
  • Terrestrial Trunked Radio base station (TETRA)
  • Digital Mobile Radio (DMR)
  • Radio dispatcher system
  • Communication shelters

Transmission systems

  • Line of Sight PtP & PtMP (LOS)
  • Structured cabling - fibre and copper network
  • Optical transmission systems

Navigation systems

  • Automatic Identification System (AIS)
  • ADS-B transponders

Control and access systems

  • Access control
  • Telecom management system
  • Telecom monitoring system
  • Automatic check-in system
  • Vessel Traffic Management System (VTMS)
  • People and asset management system

Auxiliary systems

  • Control room systems
  • Uninterrupted Power Supply (UPS)


Ask us how we can help you safeguard your offshore wind farm

Based on thorough engineering studies our experienced engineers calculate and design the best solution in terms of safeguarding your people and assets while considering both the initial expenses for engineering, construction and installation  and the costs for operation and maintenance.

Wherever you are in the world we have specialists ready to serve you.

Brian Boye

Senior Manager, Telecom Products

Semco Maritime A/S
Esbjerg Brygge 30
6700 Esbjerg

Head office
Esbjerg, Denmark

Semco Maritime A/S
Esbjerg Brygge 30
6700 Esbjerg

CVR no. DK 2549 0762

REX-no. DKREX170591191
EORI no. DK25490762


Semco Maritime Pte Ltd.
20 Toh Guan Road
07-03 CJ Logistics Building
Singapore 608839

Company reg. no. 200616492K (also GST)