Subsea News

Enshore Subsea has installed the first of two offshore export cables at Inch Cape offshore wind farm, using the CMOS Installer cable laying vessel.Operating from the Port of Blyth, the vessel installed the first of two 85-kilometre export cables for the 1.1 GW offshore wind farm, being built off the east coast of Scotland.The 220 kV, three-phase export cable was installed in three 28-kilometre sections.Once operational, the cable will transmit power from the offshore wind farm to the project’s new onshore substation under construction at Cockenzie…

Swedish firm Njord Survey has entered into a frame agreement with Energinet, Denmark’s national transmission system operator (TSO), covering site and route survey services for offshore wind and subsea cable projects.The long-term collaboration reinforces Njord Survey’s position as provider of services to the offshore renewable sector.It follows the agreement company signed earlier in October with German TSO 50Hertz to deliver geophysical and ROV seabed survey service in support…

Subsea technology company Seatools has been awarded a contract by Jan De Nul for the design and delivery of a Fall Pipe ROV (FP-ROV) that will form a key system of the Belgian contractor’s recently ordered subsea rock installation vessel, the George W. Goethals.The ROV will play an essential role in the vessel’s mission to protect critical subsea infrastructure by enabling highly accurate and controlled rock placement around cables and foundations, safeguarding assets that underpin…

Remazel, a company of the Fincantieri Group, has signed a contract with Jan De Nul for the supply of mission-critical equipment for a newbuild vessel.The contract covers the design and supply of an advanced system for transporting and laying rocks on the seabed to protect cables and pipelines.The solution developed by Remazel will enable operations at depths of up to 400 meters with a production capacity of 2,000 tonnes per hour, ensuring precision, efficiency and operational continuity even in challenging marine conditions.A centralized control system will coordinate all onboard equipment…

Belgian marine contractor Jan De Nul has signed a contract with Synera Renewable Energy (SRE) for the installation of export cables on the Taiwanese offshore wind farm Formosa 4.To bring the green energy ashore, Jan De Nul will transport, install and protect 60 kilometers of subsea cables.According to the company, it was also selected as the preferred contractor for export cables on SRE’s wind farm Formosa 6, located 55 kilometers southwest of Formosa 4.Situated 20 kilometers off Miaoli County’s coast…

Twelve new research projects will strengthen Norway’s ability to prevent and handle serious incidents that threaten life, health, and critical infrastructure.Topics include handling hybrid threats in Norwegian sea areas, early warning systems for critical underwater infrastructure, security management for renewable energy systems, natural hazards, societal vulnerability, and citizen involvement in crisis management.The projects are financed by funds from nine ministries: the Ministry of Justice and Public Security…

Belgian marine contractor Jan De Nul has ordered a rock installation vessel, specifically built to strengthen the protection of offshore energy and subsea data infrastructure.The vessel, named George W. Goethals, will be the company’s largest rock installation ship to date, with a carrying capacity of 37,000 tonnes. It will be equipped with ultra-low emission technology and engines capable of running on biofuel and green methanol.According to Jan De Nul, using its flexible vertical fall pipe and an inclined fall pipe system…

Ocean services provider DeepOcean has been awarded a SIMOPRO – simultaneous marine operation and production – installation contract by Equinor on the Norwegian continental shelf.DeepOcean’s scope of work entails SIMOPRO installation work on both the Åsgård and Visund fields. The company will undertake onshore project management, engineering and procurement services as well as offshore operations.A SIMOPRO operation refers to a complex offshore job where marine construction or…

Aesen Pte. Ltd. (Aesen) and Dutch Offshore Contractors Holdings B.V. (DOC)  formed Aesen DOC Cable Logistics Pte. Ltd., a joint venture to address the growing global demand for subsea cable transport, storage and logistics solutions.With global electrification and offshore wind expansion accelerating, demand for high-voltage subsea cables is surging, and the joint venture aims to address critical industry gaps such as supply bottlenecks, limited storage capacity, and the need for reliable end-to-end logistics.As part of its investment strategy…

Offshore construction has started at the Hollandse Kust West wind farm, where Van Oord and developer Ecowende are installing eco-friendly scour protection designed to improve marine biodiversity.Van Oord’s subsea rock installation vessels Nordnes and Bravenes have been mobilised to lay scour protection around monopile foundations, marking the official start of offshore operations at a wind farm which aims to become the most ecological of its kind.Scour protection typically stabilizes the seabed around turbine foundations against erosion caused by currents and waves.

Italian offshore services provider Next Geosolutions (NextGeo) has signed an eight-year framework agreement with German transmission system operator (TSO) 50Hertz to deliver geotechnical seabed survey services for offshore substations (OSS) projects.Part of the Elia Group, 50Hertz is responsible for the development and operation of the high-voltage power grid across Northern and Eastern Germany.As a result of this agreement, NextGeo shall be the primary provider for geotechnical seabed survey services…

Subsea cable services company Asso.subsea has ordered a next-generation trenching support vessel (TSV) from China Merchants Heavy Industry (CMHI) Shenzhen Shipyard, scheduled for delivery at the end of 2027.The vessel, named Avra, is the second new building vessel announced in just a few months by Asso.subsea, following the recent revealing of its newest cable laying vessel (CLV) Althea, underscoring a period of significant strategic investment and fleet expansion for the company.Avra…

Maritime Developments (MDL) has secured a subsea installation project in the Asia-Pacific region, covering the lay of two cables and two umbilicals.The work will be done in water depths between 800 and 1,200 meters.For the 60-day campaign, scheduled to mobilize from Singapore in 2026, MDL will provide a complete flex-lay spread, including one of the company’s Horizontal Lay Systems – a compact integrated package proven globally on installation and decommissioning scopes - mobilized…

Intermoor, Acteon’s Moorings and Anchors business line, and Jumbo Offshore, an offshore transportation and installation specialist, have entered into strategic alliance aimed at jointly delivering fully integrated project management, engineering, transport and installation services to the offshore oil and gas as well as floating wind sectors.This partnership brings together Intermoor’s expertise in mooring systems and offshore engineering with Jumbo Offshore’s capabilities in heavy-lift transport and mooring installation.Under the alliance…

Norwegian offshore supply vessel owner DOF Group has secured a contract award for moorings hook-up services in the Asia Pacific (APAC) region.The contract will use construction support vessel (CSV) Skandi Hercules with related mooring and subsea installation services.The scope of work includes DOF’s full suite of in-house project management, engineering, procurement and logistics support services.Offshore execution is scheduled in the first quarter of 2026, and the vessel utilization under the contract is expected to be approximately four weeks.According to DOF…

Norwegian shipbuilder Vard has signed a contract with Norway-based Sanco Shipping for the conversion of the seismic research vessel Sanco Sailor into a seismic source vessel.Sanco Shipping contracted PGS Apollo, now renamed Sanco Sailor, earlier in 2025, ahead of conversion job at Vard Langsten.Vard’s scope of work includes significant structural modifications, upgrades to existing seismic equipment, and the installation of a DP2 system for the vessel spanning 106.6 meters in length…

Russian forces have conducted an exercise in the Baltic Sea including drills to repel an underwater attack, the defence ministry said on Friday.Units of divers "demonstrated skills in detecting and capturing a group of underwater saboteurs, as well as using FPV (first person view) drones to destroy unmanned boats of a mock enemy", the ministry said.The drills were aimed partly at assessing the navy's anti-submarine sabotage defence units, it said.It was the second time this month that Russia has held naval exercises with an anti-submarine component, after U.S.

First High-Tech Exploration of Argentina’s Mar del Plata Canyon, Schmidt Ocean Institute’s Remotely Operated Vehicle SuBastian shines light on an offshore canyon in Argentine waters nearly twice as deep as the Grand Canyon — capturing images and video of 40 suspected new species, coral fields, and a seastar that resembled a famous cartoon character.An Argentinian-led expedition on board Schmidt Ocean Institute’s R/V Falkor (too) has captured the attention of millions, inspiring a predominantly Argentine audience with live video feeds from the deep seafloor.

French subsea power cable maker and services provider Nexans has formed partnership with Crowley Wind Services to develop and operate a Jones Act compliant cable lay barge. The cable lay barge will be dedicated to supporting the installation of subsea transmission lines necessary for offshore wind energy, telecommunications and other major industrial applications.The 300-foot, U.S.-flagged vessel, built in Louisiana and tested in the U.S. Gulf to Nexans specifications, will be…

The 50-50 consortium between Allseas and Boskalis has been awarded a large contract by CPC Corporation Taiwan for the second offshore gas pipeline from Yongan to Tongxiao (YT2) in Taiwan.Under the contract, the consortium will design, construct, install and pre-commission the new YT2 36-inch offshore natural gas pipeline, which will run approximately 232 kilometers parallel to the existing YT1 pipeline, connecting the Yongan LNG terminal in the Southwest with the Tongxiao transfer station in the Northwest.The comprehensive scope of work includes trenching…

MENCK, a brand in marine energy and infrastructure services company Acteon, has secured a contract to supply advanced pile-driving equipment and operational services for the installation of the Hornsea 3 offshore wind farm.Acteon will supply its MENCK MHU4400S hydraulic hammer, along with a pile sleeve and anvil designed for monopiles of up to 11 meters in diameter.The MHU4400S submersible is a high-performance submersible hammer engineered to drive both large monopiles and smaller-diameter piles, meeting the demands of today’s large-scale offshore wind installations.Located in the U.K.

Great Lakes Dredge & Dock Corporation, the largest provider of dredging services in the United States, has launched the first U.S. flagged, Jones Act-compliant subsea rock installation (SRI) vessel, named Acadia, at Hanwha Philly Shipyard.The Acadia vessel is engineered to transport and precisely install up to 20,000 metric tons of rock on the seabed.The rock provides critical scour protection for subsea infrastructure including subsea cables for power transmission, telecommunications cables…

Huisman has signed a contract with Dong Fang Offshore (DFO) for the delivery of a modular cable lay system, specifically designed for deployment across range of vessels.Huisman’s 30mt cable lay system will be suitable for deployment for DFO’s newbuild Construction Service Operation Vessels (CSOVs) and Offshore Construction Vessels, built by Vard.This marks Huisman’s first cable lay system, built on the company’s extensive track record in the deepwater pipelay market.The system can be configured to support both inter-array and export cable laying with DFO’s existing and newbuild vessels…