Skip to Content

Messina II – Mattresses Installation

Share this:

Prysmian has been awarded a contract by Terna SpA for the construction of an HVAC interconnection system, designated as the “Messina II” project. The project connects the Italian mainland with Sicily. This vital infrastructure facilitates the transmission of electricity between the converter stations located in Calabria, on the Italian peninsula, and the island of Sicily.

The submarine cable portion of the system consists of six HVAC power cables (poles) operating at 380kV, organized in two circuits of three cables each. In addition, two optical cables run in conjunction with two of the power cables, one in each circuit. These power cables are a critical link for the efficient transfer of energy, with a length of approximately 38 km each.

Prysmian contracted ASSO to install mattresses along a designated section of the route to ensure stability and protection of the cables.

Vessel/equipment used:

  • Ariadne
  • AssoMat II

By integrating cutting-edge technology and expertise, this project has not only strengthened the regional energy infrastructure, but also underscored the commitment to sustainable energy transmission throughout the entire area.


  • Owner
    Terna SpA
  • Contractor
    Prysmian PowerLink Srl
  • Year
  • Location
  • Cable Type
  • Alternative Protection
    Mattresses: 110 m
  • Max Water Depth
    335 m


Some of the services we provided for Messina II – Mattresses Installation 


  • Ariadne

    DP III – Cable Laying Vessel The Ariadne is a DP-3 Cable Laying Vessel built for worldwide operations, …

    Ariadne Cable Laying Vessels


  • AssoMat II

    The ‘AssoMat II’ is an updated version of its predecessor, the ‘AssoMat I’. It is a purpose-built, highly …

    AssoMat II Mattresses Installation, Seabed Preparation Equipment

Let's discuss your project!

We are here to provide more information & answer any questions you might have.
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram