Offshore Wind Subsea Cable Market - Strategic Insights and Forecasts (2026-2031)

The Offshore Wind Subsea Cable Market is projected to grow from USD 4,648.24 million in 2026 to USD 10,118.24 million in 2031, at a CAGR of 16.8% during forecast period.

The growth of the offshore wind subsea cable market is being fueled by the ongoing expansion of offshore renewable production and the growing demand to bring electricity from offshore wind farms to land transmission networks. International Energy Agency (IEA) forecasts the offshore wind capacity addition of 140 GW during 2025–2030, with the annual offshore wind market expected to exceed 37 GW by 2030, thus supporting a strong demand for subsea export and inter-array cable systems.

• The distance of offshore projects from shore and requirements for transmission are further increasing demand for high-voltage subsea cables. Cable procurement lead times for the industry have expanded significantly, with participants indicating that high-voltage cable procurement can take two to three years amid tight supply and infrastructure needs, according to IEA reporting.

• Offshore wind farms are evolving towards bigger sizes and larger capacities, delivering from centralized offshore transmission networks and the subsequent generally larger electrical output of cable systems. For instance, in January 2025, Nexans won its 1 billion LanWin 2 order for approximately 250 km of 525-kV HVDC XLPE cable systems to transmit up to 2 GW of offshore wind power from the North Sea off southern Germany to the mainland.

• France is also building a new offshore transmission system, with Nexans having signed a framework agreement with RTE in 2025 which covers 450 km of high-voltage direct current (HVDC) subsea cables for French Centre Manche 1 & 2 and Oléron offshore wind farms. The framework has a potential value of more than €1 billion, reflecting the growing scale and value of offshore wind cable procurement.

• Increasing demand for non-conventional subsea cable solutions due to offshore energy islands and hybrid transmission systems. In September 2025, the Danish company NKT won a contract worth approximately €650 million to establish a cable connection of approximately 200 km from Bornholm Energy Island in Denmark to New Zealand for HVDC of 525 kV .

• The supply-demand pressure for specialized cable installation capacity from offshore wind development is witnessing growth. NKT's newly built cable-laying vessel NKT Eleonora is expected to deliver its full operational capability in 2027.

• Furthermore, Nexans inaugurated its latest next-generation cable-laying installation vessel, Nexans Electra, in June 2026, which augments its own available installation capacity for upcoming HVDC and offshore wind projects.

• There is advancement in higher-capacity subsea cable technology to connect increasingly large offshore renewable projects. For instance, in August 2026, NKT qualified a 525 kV system with continuous operation at 90°C. It is an offshore-ready extruded XLPE subsea cable system to improve transmission capacity and efficiency for applications, including offshore wind and hybrid interconnectors.

Market Drivers

Rapid Expansion of Offshore Wind Capacity

• Global offshore wind capacity is growing, increasing demand for inter-array, export, and subsea transmission cables, as new offshore wind farms need electrical infrastructure to collect and transmit the power generated from offshore substations to onshore electric grids.

• Global offshore wind additions in 2025 were 9.3 GW, ranking as the third-highest year for new offshore wind installations, with cumulative global capacity reaching 92.549 GW by year-end, according to the Global Wind Energy Council (GWEC).

•  As per the same source, in 2025, China installed 6.6 GW of new offshore wind capacity and, for the eighth year in a row, remained the world's largest annual offshore wind market with total offshore capacity reaching 48.4 GW.

• Additionally, nearly 2 GW of offshore wind capacity was installed in Europe in 2025, including around 1,049 MW in the UK; 598 MW in Germany and 508 MW in France, according to data sourced from the European Commission and GWEC. The expansion will require additional subsea grid connections.

•  In January 2026, the UK held AR7, the largest offshore wind auction in Europe to date, responsible for securing up to 8.4 GW of offshore wind. It could have massive future inter-array and export cable system requirements.

•  Growing project pipeline is also stimulating high-capacity cable demand. GWEC estimates worldwide more than 50 GW of offshore wind projects in the construction stage, while its outlook to 2026 shows potential additional capacity of 327 GW between 2026 and 2035, creating a future demand for subsea cables.

The Potential of Offshore Wind Subsea Cable

The potential of subsea cables is vast and extends beyond their current application in connecting offshore wind farms to the onshore grid, which is stimulating the offshore wind subsea cable market. For example, subsea cables enable the interconnection of cross-border projects by facilitating the exchange and sharing of renewable energy resources between nations. Moreover, subsea cables can connect offshore energy storage systems such as underwater compressed air energy storage or pumped hydro storage to the onshore grid. These storage systems can help balance the intermittent nature of renewable energy sources and ensure a stable energy supply.

Advancements in Offshore Wind Technology

Technological advancements in offshore wind turbine design and construction have led to larger and more efficient turbines. These larger turbines require higher capacity subsea cables to transmit the increased electricity output to shore. The Levelized Cost of Energy (LCOE) for offshore wind has been declining due to various factors, including technological advancements, economies of scale, and increased competition in the sector, which is also boosting the offshore wind subsea cable market. For instance, according to the US Department of Energy, a 13% decrease in the anticipated levelized cost of energy for commercial-scale offshore wind projects in the United States, ranging from $61/MWh to $116/MWh, led to a 13.5% increase in the U.S. offshore wind pipeline in 2021 compared to 2020.

Wider Availability of Offshore Wind Resources

Offshore wind farms can harness stronger and more consistent wind resources which enhance the overall energy output compared to onshore wind farms. The availability of favorable wind conditions in offshore locations encourages the development of large-scale offshore wind projects driving the offshore wind subsea cable market. In 2030, it is projected that there will be 60% more installed wind power than in the Moderate Scenario for fixed-bottom and floating wind capacity. A 270 GW and 16.5 GW global offshore wind development is projected for 2030 according to the NREL report.

Environmental Concerns and Energy Transition

With increasing concerns about climate change and the need to transition from fossil fuels to renewable energy sources, offshore wind energy has become an attractive option. Governments and energy companies are investing in offshore wind projects which are driving the demand for offshore wind subsea cables. Between 2011 and 2020, global investment in the energy transition increased from under $300 billion per year to nearly $500 billion annually as per the World Economic Forum report. Moreover, during the period from 2011 to 2019, the global wind energy capacity grew approximately threefold. The UNDP states that in order to achieve climate goals, annual energy-related CO2 emissions must decrease by 70% below current levels by the year 2050.

Government Initiatives and Support

Many governments worldwide are providing financial incentives, subsidies, and regulatory support to promote offshore wind development. These incentives aid in boosting the offshore wind subsea cable market. Investment in offshore wind capacity attracted 8% of the total energy investments between 2013 and 2022, as per IRENA. Moreover, according to the EIA's 2021 report, eight states of the USA have implemented offshore wind energy policies that aim to deploy a minimum of 39,322 megawatts (MW) of offshore wind capacity by the year 2040. Additionally, the MNRE (India) has set medium- and long-term goals of 5 GW by 2022 and 30 GW by 2030 for the expansion of offshore wind generating capacity.

Market Restraints and Challenges 

The offshore wind subsea cable market has experienced growth and development; however, some restraints or challenges can impact its expansion. For example, the installation of subsea cables can have environmental consequences on marine ecosystems. The laying and operation of cables can disturb the seabed and affect marine habitats, raising concerns over potential impacts on marine life, including endangered species. Moreover, subsea cables are susceptible to damage from fishing activities, anchors, and other marine operations. Repairing and maintaining these cables require specialized vessels and equipment, which can result in higher costs and downtime for the wind farm.

Offshore Wind Subsea Cable Market Segment Analysis

Floating Offshore Wind Farm

By application, the offshore wind subsea cable market is segmented into floating offshore wind farms and fixed-bottom offshore wind farms, where the former is expected to show considerable growth fueled by government policies incentivizing project establishments.

Emphasis on capacity expansion fueled by the booming renewable energy transition has shaped the global market outlook. The floating offshore wind farm segment is anticipated to grow significantly, fueled by continuous advancements in offshore wind infrastructure.

• The constant energy shift has positively impacted the frequency of floating offshore wind farm establishment. The Global Wind Energy Council reported that global offshore wind capacity reached 92.5 GW in 2025, representing nearly 11% growth over the preceding year. Such progression positively influences the installation scope for subsea cables. 

• Key regions like China are experiencing significant growth in new offshore installations. With the recent commissioning of a 16 MW TLP floating wind platform in the South China Sea, the nation outlines the supportive framework for its floating capacity. 

• Likewise, other major nations are also witnessing new commissioning, which is expected to propel the market trajectory. For instance, Japan’s “Goto Offshore Wind Farm ” is set to begin in January 2026, and France’s “30 MW Éoliennes Flottantes du Golfe du Lion (EFGL)” offshore wind farm is expected to start electricity production in May 2026.

• Renewable target set by governments globally has encouraged new market innovations, with global cable manufacturers such as Prysmian Group  forming collaboration accelerating floating offshore wind development.

• Incentives and government-backed funding provided under key policies have played a key role in driving investments in floating offshore wind farms across global regions. Likewise, the continued shift toward high-voltage systems is propelling offshore wind infrastructure development, which further improves market transparency.

Geographical Outlook

Asia Pacific: China

The Chinese offshore wind subsea cable market is projected to show significant growth fueled by the establishment of offshore wind projects.

• Pioneering global wind energy installations, China holds high market potential for offshore wind subsea cables. According to the World Wind Energy Association, the country accounted for nearly 51% of global wind capacity in 2025.

• The government is laying a strategic blueprint under the 15th Five-Year Plan to support offshore wind base development across the Yellow Sea, East China Sea and Bohai Sea, supporting the development of advanced subsea cables for cross-border energy sharing. 

• The country, as of February 2026, had cumulative offshore wind capacity exceeding 47 million kW, with targets set to achieve a benchmark of 100 million kW by 2030. Hence, such capacity expansion targets positively influence the market trajectory.

• Key cable manufacturers such as ZTT and Hengtong Group enjoy a wide customer base in China, and the companies, through strategic collaboration with advanced cable material makers like Hanwha Solutions, have implemented innovations in their offshore wind cables for the Chinese market.

• Establishment of offshore wind farms in key regions, such as the recent Yangjiang Fanshi offshore wind farm in Guangdong, which became operational in September 2026, outlines the market scope for deployment of subsea cables in major offshore wind farms in China.

  Report Metric	Details
  Total Market Size in 2026	USD 4,648.24 million
  Total Market Size in 2031	USD 10,118.24 million
  Forecast Unit	USD Million
  Growth Rate	16.8%
  Study Period	2021 to 2031
  Historical Data	2021 to 2024
  Base Year	2025
  Forecast Period	2026 – 2031
  Segmentation	Cable Type, Conductor Type, Cable Function, Voltage, Application, Geography
  Companies	PRYSMIAN S.p.A. Nexans NKT A/S JDR Cable Systems (TFKable Group) Sumitomo Electric Industries Ltd.

Company Profiles

Sumitomo Electric Industries pursues an integrated, technology-led strategy in the offshore wind subsea cable market by combining cable design, manufacturing, installation and project management capabilities. The company leverages more than 100 years of submarine-cable experience and offers a broad portfolio covering medium-voltage, HVAC, and HVDC subsea cables for offshore renewable-energy projects. Its strategy focuses on supporting the increasing power-transmission requirements of large offshore wind farms through higher-voltage and reliable cable technologies, including 66-kV-class array cables and HVDC systems.

The company is also strengthening its presence in Europe through localized manufacturing capacity at its Port of Nigg facility in Scotland, targeting growing offshore-wind and grid-connection demand in the UK and wider European market. In Japan, Sumitomo Electric is expanding its offshore-wind presence through turnkey contracts covering the design, manufacturing and installation of subsea cables.

Key Developments

• May 2026: Poland advances its first cable-laying vessel initiative: ORLEN Neptun, PGE Baltica, ARP, and the TFK Group announced cooperation plans supporting subsea cable installation and servicing for Baltic offshore wind farms.

• May 2026: Boskalis announced investment in an advanced vessel designed for long-distance subsea cable installation, supporting offshore wind transmission and interconnector projects through improved installation efficiency.

• March 2026: Sumitomo Electric secured an order for the 315-MW Akita offshore wind project, covering design, manufacturing, and installation of approximately 57 km of 66-kV AC subsea cable. The project is scheduled to begin operations in June 2028.

• January 2026: Prysmian announced its acquisition of Spanish subsea services specialist ACSM, expanding its capabilities in cable installation, seabed preparation, surveying, and route planning for offshore energy infrastructure.

Offshore Wind Subsea Cable Market Scope: