Asso.Subsea, Bygg nr. CMHI-KY-25012 og ? ved CMHI Shenzhen, Trenching Support Vessel "Avra" og "Andromeda"

Styrmannen

Active Member
«We are proud to announce that the shipbuilding contract for the construction of the TSV Avra, a next-generation Trenching Support Vessel, has been officially signed. The Avra will raise the bar for trenching capability in floating offshore wind and subsea cable industries, while setting new standards in sustainability.

The shipbuilding contract was signed during a ceremony held at our headquarters in Elefsina, Greece. This milestone marks a strategic collaboration with China Merchants Heavy Industry (CMHI) Shenzhen Shipyard for the vessel’s construction, while delivery is estimated approximately in the end of 2027.

The Avra will be the second new building vessel announced in just a few months, following the recent reveal of our newest Cable Laying Vessel Althea, underscoring a period of significant strategic investment and fleet expansion for the company.

More than just another addition to the fleet, the Avra is a game-changer. A double-redundant DP-2 unit with a record-breaking  24 MW of installed hybrid power, she solidifies her position as the most powerful purpose-built TSV to date, engineered to handle the most complex projects in the harshest environments.

What Truly Sets the Avra Apart:

While versatile enough for cable repair and laying, Avra’s primary mission is to set new standards for trenching operations. Her powerful propulsion system is designed to support the operation of a pair of the most advanced trenching vehicles simultaneously, even in adverse weather conditions, thus accelerating project timelines and ensuring operational reliability.

Key Market Differentiators:

  • Unrivalled Power & Capacity: With 24MW hybrid power and over 180T bollard pull, Avra is designed to operate with heavy trenching, ploughing and boulder clearance tools simultaneously, maximizing efficiency.
  • Multi-purpose capability: With a 4,000t under-deck cable carousel capability and twin working decks, Avra can support a wide range of projects including dynamic cable spreads, floating wind installations, inter-array and export cable operations with maximum efficiency.
  • Designed for Energy Transition: Methanol and bio-fuel ready, equipped with a large battery hybrid system and cold-ironing capability, reducing her environmental footprint from day one.
  • Full Operational Scope: With extensive deck machinery, including a 150t offshore/subsea crane and dual heavy-duty A-frames, is positioned as a multi-role powerhouse, supporting the entire lifecycle of subsea energy projects.
The contract signing for the construction of the Avra is a strategic milestone for our company” said Ioannis Togias, Executive Director of Marine Technology. “This partnership with CMHI marks the beginning of building the most powerful vessel of her kind. The Avra is designed to provide our clients with an unassailable advantage in efficiency and project execution. This investment underscores our commitment to driving the offshore industry forward.”

The Avra represents a cornerstone of Asso.subsea’s fleet expansion, directly addressing the increasing demands of global offshore energy infrastructure projects.»

 
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TSV-Andromeda.jpg
Asso.subsea is pleased to announce the official signing of the shipbuilding contract for the Andromeda, our next-generation Trenching Support Vessel and sister ship to Avra.

The contract was signed following Asso.subsea’s declaration of an option included in the original shipbuilding agreement for the Avra, further strengthening our strategic partnership with China Merchants Heavy Industry (CMHI) Shenzhen Shipyard. Andromeda will be built at the same shipyard site alongside the Avra and our Cable Laying Vessel, Althea. Delivery of Andromeda is planned for Q2 2028.

With identical technical specifications to Avra, Andromeda represents a deliberate capacity expansion strategy. Designed as a double-redundant DP-2 vessel with a record-breaking 24 MW of installed hybrid power, she ranks among the most powerful Trenching Support Vessels ever constructed.

Purpose-built to execute the most demanding trenching, ploughing and subsea intervention campaigns, Andromeda enables the simultaneous deployment of two advanced trenching vehicles, even in challenging offshore conditions, significantly enhancing project efficiency and schedule certainty.

With twin working decks, extensive deck machinery and prepared for a 4,000t under-deck cable carousel, she offers exceptional operational flexibility across dynamic cable spreads, floating wind installations, inter-array, and export cable campaigns.

“The contract signing for the construction of Andromeda reflects our proactive response to the accelerating demand for high-performance trenching solutions,” said Ioannis Togias, Executive Director of Marine Technology. “By declaring this first option and introducing a second vessel with identical capabilities to Avra, we ensure operational flexibility and parallel deployment options for our clients worldwide.”

The Andromeda stands as a cornerstone of Asso.subsea’s long-term investment strategy, addressing the increasing complexity, scale, and urgency of global offshore energy developments. With two identical next-generation TSVs and one advanced Cable Laying Vessel under construction, Asso.subsea continues to strengthen its position at the forefront of trenching innovation and subsea project execution.
 
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