Offshore Wind News

Dutch offshore vessel owner Acta Marine has christened its commissioning service operation vessel (CSOV) Acta Hercules in IJmuiden, the Netherlands, as the company moves closer to completing its four-vessel newbuild program.Acta Hercules was delivered earlier this year as the second vessel in the series and is already deployed under a long-term charter supporting offshore wind operations for Vestas.The vessel is equipped with methanol dual-fuel engines and an advanced battery energy storage system…

Siemens Energy has contracted EST-Floattech to supply a battery system of more than 1 MWh for Marco Polo Marine's new CSOV Plus, a vessel designed to work in both offshore wind and oil and gas operations.The Octopus High Energy battery system will support hybrid and dynamic positioning operations aboard the vessel, which is being built by Marco Polo Marine at its shipyard in Batam, Indonesia. Siemens Energy is the system integrator for the hybrid power plant.During dynamic positioning…

DEME has installed the 68th and final monopile at Vattenfall's 980 MW Nordlicht I offshore wind farm in the German North Sea, completing the project's monopile installation campaign.The milestone follows installation of the first monopile in July and the first transition piece in August. DEME carried out the monopile campaign using its offshore installation vessel Orion.Nordlicht I is located about 85 kilometers north of the German island of Borkum and is set to become Germany's…

Integrated Wind Solutions (IWS) subsidiary IWS Fleet has ordered four Skywalker-class commissioning service operation vessels (CSOVs) for a combined firm yard price of around $301 million (€260 million), expanding its owned fleet from six to 10 CSOVs.The four vessels, priced at around $75 million (€65 million) each, will be built by Nantong Rainbow Offshore & Engineering Equipment and delivered in 2029 and 2030 under fixed-price turnkey contracts.IWS Fleet has also secured options for another four vessels at the same firm prices…

SSE has selected Montrose Port as the preferred operations and maintenance base for its planned 1.4 GW Berwick Bank B offshore wind farm off Scotland, a move expected to create 100 full-time jobs.The new operational hub will be located at Montrose Port's South Harbour, with technicians and engineers responsible for the day-to-day operation of the wind farm over its expected life of more than 35 years.Around 30 additional jobs will be supported during construction of the base, which will involve redeveloping Montrose Port Authority's existing offices.Berwick Bank B…

Dajin Heavy Industry has selected Ulstein's ULSTEIN HX122 design for an offshore installation vessel capable of installing future 4XL monopiles, expanding the offshore wind foundation supplier's activities into offshore installation.The vessel, designed by Ulstein Design & Solutions in the Netherlands, is intended to install monopiles, jacket foundations and offshore substations. It will also be capable of supporting oil and gas construction and decommissioning work.The project will expand Dajin's capabilities beyond manufacturing…

Van Oord has named its two next-generation flexible fallpipe vessels Vindnes and Vestnes, with the 35,000-tonne-capacity ships scheduled for delivery in 2028 and 2029.The purpose-built vessels, currently under construction at Yantai CIMC Raffles Offshore in China, will expand Van Oord's subsea rock installation capacity for offshore wind, interconnector and other energy infrastructure projects.Unlike converted vessels, Vindnes and Vestnes have been designed specifically for subsea rock installation…

Fincantieri's Norwegian subsidiary Vard has signed a contract, worth between $76 million and $86 million, to build a commissioning service operation vessel (CSOV) for Dong Fang Offshore, marking the fifth vessel ordered by the Taiwan-based marine contractor from the shipbuilder.The vessel will be based on VARD 4 39 design and adapted for subsea operations, offshore wind installation and maintenance, as well as cable laying and repair work.Measuring about 102.5 meters long and 19.5 meters wide…

ABL has been appointed by German transmission system operator 50Hertz to provide marine warranty survey services for the 2 GW Ostwind 4 offshore grid connection project in the German Baltic Sea.The consultancy will provide marine assurance for transportation and installation operations covering subsea cables and offshore infrastructure, including the installation of the project's converter platform and associated assets.Ostwind 4 will be the first project to use a high-voltage…

Stillstrom by Maersk has signed a letter of intent (LOI) with Semco Maritime to manufacture and deliver a key part of its offshore vessel charging system, moving the technology into manufacturing following completion of its design phase.Semco Maritime will manufacture the local equipment room, or local equipment room (LER), which controls power, communications and safety functions across Stillstrom's offshore charging infrastructure.The containerized unit houses the transformer and medium-voltage switchgear used to transfer offshore-generated electricity from a wind farm to a vessel…

CSL OWL has launched the first of two purpose-built subsea rock installation vessels designed for offshore wind construction and maintenance projects.The vessel, named Rock Star, is the first in CSL OWL's two-ship newbuilding program and is designed to carry up to 17,500 tonnes of rock and install material at rates of up to 2,000 tonnes per hour in water depths of up to 100 metres.Measuring 166.8 meters long and 40 meters wide, the vessel has a deadweight of about 21,000 tonnes…

DeepOcean and the controlling entity of TFKable Group plan to establish a joint venture offering integrated inter-array cable services for offshore wind projects, including a new purpose-built cable laying vessel (CLV).The venture will combine TFKable Group's subsea cable manufacturing capabilities, including those of Tele-Fonika Kable and JDR Cable Systems, with DeepOcean's offshore engineering, installation and seabed intervention expertise.The planned offering will cover engineering…

Vard has delivered Dong Fang Offshore's first newbuild, the Orient Inspirer service operation vessel (SOV), two months ahead of schedule, while the company has approved an order for another vessel from the Norwegian shipbuilder valued at up to $86 million.The Orient Inspirer, previously known as newbuild NB 987, was delivered from Vard Vung Tau in Vietnam following a ceremony on September 16 and is expected to arrive in Taiwan by the end of September.The vessel will be reflagged…

Cadeler and Vattenfall have signed a memorandum of understanding (MoU) to explore new offshore wind maintenance solutions, with a focus on major component exchanges for operating wind farms.The collaboration between Vattenfall Vindkraft and Nexra, Cadeler's dedicated offshore wind operations and maintenance platform, will combine operational expertise, service methods and long-term planning to examine more efficient and scalable approaches to maintenance.The companies will focus on Major Component Exchange capabilities across multiple turbine platforms…

Spanish shipyard GONDAN Shipbuilders has launched a 120-metre Ocean Energy Support Vessel (OESV) for Østensjø Rederi, the largest vessel built by the shipyard to date.The C513 OESV was launched at GONDAN's Figueras facility and will now undergo final outfitting and sea trials ahead of scheduled delivery in late 2027.Designed by Salt Ship Design, the vessel has a beam of 23 meters and is intended for operations including walk-to-work personnel transfers, commissioning service operation vessel (CSOV) support for offshore wind…

Boskalis’ recently commissioned Windpiper subsea rock installation vessel has started its maiden project at the Bałtyk 2 and Bałtyk 3 offshore wind farms in the Baltic Sea, placing its first rocks to protect the projects’ export cables.The 227-meter-long vessel loaded nearly 45,000 tons of rock in Norway following its christening in July before sailing for the installation campaign.Boskalis said the load represents a record cargo, with no single subsea rock installation vessel…

Windward Offshore has taken delivery of the Windward Hamburg, completing its four-vessel series of purpose-built commissioning service operation vessels (CSOVs) ordered from shipbuilder Vard.The delivery brings the Windward Hamburg into the fleet alongside sister vessels Windward Athens, Windward Paris and Windward Munich, providing capacity to support offshore wind projects during construction, commissioning and long-term operations.Based on VARD's 4 19 design, the Windward Hamburg is 87.5 meters long and 19.5 meters wide and can accommodate up to 120 people.

Finnish ship design house Deltamarin has joined forces with Barcelona-based engineering and vessel design office Offshoretronic in an Exclusive Engineering Consultant Agreement to develop what will be the world's largest jackup Monopile Installation Vessel (MPIV), named the VITRUVIAN Class, through to shipyard-ready status.The concept is a direct response to a capability gap in the offshore wind sector. Next-generation 20-30 MW turbines, expected in commercial service by 2030…

MacGregor has expanded its offshore technology portfolio with a certified floating-to-floating personnel transfer capability for its Horizon gangway and a new bow transfer system designed for direct ship-to-well transfer of LCO2.The Horizon gangway has received DNV certification under DNV-ST-0358 for floating-to-floating personnel transfers following a successful sea acceptance test. The certification enables motion-compensated connections between two vessels moving independently…

Cadeler completed the final turbine installation at the 960 MW He Dreiht Offshore Wind Farm in the German North Sea. The final turbines were installed by Wind Keeper, under its long-term contract with Vestas.Cadeler’s scope of the installation campaign was executed using two of Cadeler's offshore wind installation vessels. Wind Orca commenced the project in April 2025 before Wind Keeper took over the remaining installation scope in the first quarter of 2026 under Cadeler's long-term contract with Vestas announced last year.

Offshore wind installation contractor and operator Cadeler has acquired Menck, a global provider of specialist equipment and technology solutions for offshore foundation installation based in Germany.The acquisition strengthens Cadeler’s offshore wind installation capabilities. Cadeler intends to continue operating Menck as a standalone business, preserving its independent market position while strengthening its role as a key supply chain provider across the offshore wind industry.Combining…

Cadeler has signed firm contracts with COSCO Shipping Offshore shipyard in Qidong, China, for the construction of two new T-class offshore wind installation vessels, scheduled for delivery in 2030 and 2031.The new T-class series vessels have been engineered to be the largest and most capable vessels ever introduced to this market. They are designed to tackle increasingly complex projects with greater efficiency, versatility and performance.Earlier this year, Cadeler secured the…

German energy company RWE said on Thursday that it had reached a $1.22 billion agreement with the Trump administration to cancel three offshore wind leases in U.S. waters and to direct the funds to LNG and natural gas power plant projects.The arrangement is the fifth, and largest, the administration has entered into this year as part of its wide-ranging effort to stop development of U.S. offshore wind projects, which U.S. President Donald Trump regards as costly and ugly. His…