The global submarine power cables market was valued at USD 25.10 billion in 2025. The market is estimated at USD 28.20 billion in 2026 and is projected to reach USD 81.50 billion by 2036, at a CAGR of 11.2% during the forecast period 2026-2036. This report provides a detailed assessment of the market, covering cable technology, factory and vessel capacity, order backlogs, the project pipeline, cable repair, permitting, pricing and contracts, the supplier landscape, and future growth opportunities.
The study covers subsea power cables that carry electricity across water, together with the services needed to deliver and maintain them. This includes direct current and alternating current cables for interconnectors and wind farm export routes, medium voltage array cables between turbines, links that supply islands and oil and gas platforms from shore, and the related joints, terminations, and other accessories. Route survey and engineering, cable laying, burial and protection, pull-in, jointing, commissioning, and post-installation repair, monitoring, and spare cable supply are also part of the market.
Supplier order books point to demand running well ahead of delivery capacity: Prysmian reported Transmission segment sales of EUR 882 million in the second quarter of 2026, compared with EUR 743 million a year earlier, alongside a Transmission backlog of EUR 17 billion. Nexans reported an adjusted backlog of EUR 7.7 billion at mid-2026, of which the Great Sea Interconnector made up EUR 1.2 billion, and said this backlog gives it visibility until 2028. NKT reported a Transmission backlog of EUR 13.0 billion at mid-2026, which does not yet include five TenneT framework projects valued above EUR 2.5 billion.
Supply, rather than demand, limits growth, as only a few plants have the extrusion, curing, armoring, storage, and quayside loading facilities needed for long direct current lengths, and suitable laying vessels are equally scarce. Revenue therefore follows execution: Nexans reported first-half 2026 PWR-Transmission sales of EUR 776.8 million with slightly negative organic growth, even as its segment margin improved to 13.7%. NKT reported that its second-quarter Transmission revenue dropped from EUR 484 million to EUR 405 million once the Champlain Hudson Power Express project entered commercial operation. Fixed-price contracts also carry offshore execution risk from weather, seabed conditions, and vessel availability, while a concentrated supply base exposes buyers to schedule risk.
New factory and vessel capacity is a key opportunity, because added capacity in a supply-limited market converts quickly into revenue at firm prices. Nexans put the Nexans Electra, its third cable-laying vessel, into service in the second quarter of 2026, and NKT expects its new Karlskrona factory, added Cologne capacity, and a second vessel to begin operating in 2027. Asia-Pacific offshore wind and island links, services for the growing installed base, and the electrification of platforms and industrial sites offer further openings. Key trends include record backlogs alongside flat organic revenue, standard designs for offshore grid connections, and suppliers owning their installation fleets.
By offering, the submarine power cables market is segmented into cables, installation & marine services, and repair, maintenance & monitoring services. Cables, which include export, array & inter-array, and interconnector cables along with accessories, joints & terminations, are expected to hold the largest share in 2026, as their material content grows with rating and route length, cable production sets each project's schedule, and order books already contain several years of supply. Installation & marine services are expected to grow at the highest CAGR, driven by the shortage of vessels able to handle heavy direct current cable, rising day rates, and suppliers bringing the offshore scope in-house. Repair and monitoring services will also grow strongly as more circuits enter service.
By current type, the submarine power cables market is segmented into high voltage alternating current (HVAC) and high voltage direct current (HVDC). Alternating current is expected to hold the largest share in 2026, as it serves array cabling and shorter export and island links, where it avoids converter stations and charging current is not a constraint over modest distances. Direct current is expected to grow at the highest CAGR, supported by wind farms sited further from shore, higher standard transfer ratings for offshore grid connections, and long links between distant markets. Higher value per kilometer and tight qualified capacity also support its pricing.
By voltage, the submarine power cables market is segmented into high voltage above 220 kV, medium-high voltage 33 kV to 220 kV, and low & medium voltage up to 33 kV. The above 220 kV segment is expected to hold the largest share in 2026, as interconnectors and export circuits carry most transferred power, command the highest value per kilometer, and dominate supplier order book value. The 33 kV to 220 kV segment is expected to grow at the highest CAGR, as large wind farms switch array cabling from 33 kV to 66 kV to cut strings and losses, and higher turbine counts lengthen array circuits. Cables up to 33 kV will grow more slowly but stay relevant for island, platform, and aquaculture links.
By insulation, the submarine power cables market is segmented into cross-linked polyethylene (XLPE), mass impregnated, fluid-filled & paper-insulated, and other insulation types. Cross-linked polyethylene is expected to lead in 2026 and grow the fastest, as it is proven in alternating current circuits at all voltages, now qualified at the direct current voltages specified for new projects, lighter and more flexible than mass impregnated cable, and free of fluid handling needs. Mass impregnated cable keeps a role on long direct current routes where extruded designs are not yet qualified, while fluid-filled & paper-insulated cable is shrinking to replacement and repair work.
By application, the submarine power cables market is segmented into offshore wind, interconnectors & transmission links (including cross-border links), island & offshore platform connection, and other applications. Offshore wind is expected to account for the largest share in 2026, as every farm requires both array and export cabling, capacity commitments in Europe and Asia-Pacific are large, and cable content rises with distance from shore and turbine count. Interconnectors & transmission links are expected to grow at the highest CAGR, given the high value of each link, wider price gaps between connected markets, and the role of interconnection in balancing renewable output. Island & offshore platform connection should grow steadily as shore power replaces gas turbines on platforms.
By end user, the submarine power cables market is segmented into transmission system operators & utilities, offshore wind developers & independent power producers, oil & gas operators, and other end users. Transmission system operators & utilities are expected to hold the largest share in 2026, as they own interconnectors and, in several countries, offshore transmission assets, and increasingly buy through multi-project frameworks such as TenneT's award to NKT. Offshore wind developers & independent power producers are expected to grow at the highest CAGR, as array cabling usually stays with the developer, rising turbine counts lengthen array circuits, and developers still buy export cables in markets where system operators do not take over offshore transmission. Oil & gas operators will add demand as platform electrification advances.
Europe is expected to hold the largest share of the submarine power cables market in 2026, supported by offshore wind in the North Sea, Baltic Sea, and Irish Sea, interconnectors within Europe and with neighboring systems, framework buying by system operators, and platform electrification on the Norwegian and U.K. continental shelves. The region is also home to leading suppliers such as Prysmian, Nexans, NKT, Hitachi Energy, JDR Cable Systems, DEME Group, Van Oord, and Jan De Nul Group.
Asia-Pacific is expected to grow at the highest CAGR, driven by offshore wind programs in China, Japan, South Korea, Taiwan, and Vietnam and by island grid links. With European capacity booked for years, projects there rely mainly on regional makers such as Sumitomo Electric Industries, LS Cable & System, Taihan Cable & Solution, and Hengtong Group. North America holds a smaller but growing share, supported by links into constrained load centers and Atlantic offshore wind, although permitting and policy have slowed the latter. The Rest of the World remains limited, with island links, Middle East platform electrification, and early-stage projects in Latin America and Africa that often rely on international contractors and development finance.
The submarine power cables market is consolidated in high voltage direct current, where few manufacturers are qualified at current ratings, and more fragmented in array cabling, island links, and marine services, where regional cable makers and dredging contractors also compete. Suppliers compete on qualified capacity, vessel access, prequalification, delivery credibility, jointing skills, execution record, and total delivered cost. Leading companies are investing in plants and vessels, taking installation in-house, bidding more selectively with tighter terms, and signing frameworks that reserve capacity years ahead. Recent developments include the Nexans Electra entering service in 2026, NKT's Karlskrona and Cologne expansions and second vessel due in 2027, and the five-project TenneT framework award to NKT.
Key companies profiled in the report include Prysmian S.p.A. (Italy), Nexans S.A. (France), NKT A/S (Denmark), Sumitomo Electric Industries, Ltd. (Japan), Furukawa Electric Co., Ltd. (Japan), Fujikura Ltd. (Japan), LS Cable & System Ltd. (South Korea), Taihan Cable & Solution Co., Ltd. (South Korea), Hengtong Group Co., Ltd. (China), Jiangsu Zhongtian Technology Co., Ltd. (China), Ningbo Orient Wires & Cables Co., Ltd. (China), Hitachi Energy Ltd (Switzerland), Twentsche Kabelfabriek B.V. (Netherlands), JDR Cable Systems Ltd (U.K.), DEME Group NV (Belgium), Van Oord N.V. (Netherlands), Jan De Nul Group (Luxembourg), and Royal Boskalis N.V. (Netherlands).
The study covers subsea power cables that carry electricity across water, together with the services needed to deliver and maintain them. This includes direct current and alternating current cables for interconnectors and wind farm export routes, medium voltage array cables between turbines, links that supply islands and oil and gas platforms from shore, and the related joints, terminations, and other accessories. Route survey and engineering, cable laying, burial and protection, pull-in, jointing, commissioning, and post-installation repair, monitoring, and spare cable supply are also part of the market.
Supplier order books point to demand running well ahead of delivery capacity: Prysmian reported Transmission segment sales of EUR 882 million in the second quarter of 2026, compared with EUR 743 million a year earlier, alongside a Transmission backlog of EUR 17 billion. Nexans reported an adjusted backlog of EUR 7.7 billion at mid-2026, of which the Great Sea Interconnector made up EUR 1.2 billion, and said this backlog gives it visibility until 2028. NKT reported a Transmission backlog of EUR 13.0 billion at mid-2026, which does not yet include five TenneT framework projects valued above EUR 2.5 billion.
Market Dynamics
Offshore wind connection is a major driver of the submarine power cables market, since every wind farm needs array cabling between turbines and an export link to shore, with no substitute for either. Larger farms placed further offshore add cable length faster than they add capacity. Interconnectors add demand by letting surplus power in one system serve another, lowering balancing costs, and improving security of supply. The move to direct current at higher ratings raises conductor content and installed value per connection, and multi-project frameworks reserve factory slots and vessel time years ahead, giving suppliers the certainty to invest.Supply, rather than demand, limits growth, as only a few plants have the extrusion, curing, armoring, storage, and quayside loading facilities needed for long direct current lengths, and suitable laying vessels are equally scarce. Revenue therefore follows execution: Nexans reported first-half 2026 PWR-Transmission sales of EUR 776.8 million with slightly negative organic growth, even as its segment margin improved to 13.7%. NKT reported that its second-quarter Transmission revenue dropped from EUR 484 million to EUR 405 million once the Champlain Hudson Power Express project entered commercial operation. Fixed-price contracts also carry offshore execution risk from weather, seabed conditions, and vessel availability, while a concentrated supply base exposes buyers to schedule risk.
New factory and vessel capacity is a key opportunity, because added capacity in a supply-limited market converts quickly into revenue at firm prices. Nexans put the Nexans Electra, its third cable-laying vessel, into service in the second quarter of 2026, and NKT expects its new Karlskrona factory, added Cologne capacity, and a second vessel to begin operating in 2027. Asia-Pacific offshore wind and island links, services for the growing installed base, and the electrification of platforms and industrial sites offer further openings. Key trends include record backlogs alongside flat organic revenue, standard designs for offshore grid connections, and suppliers owning their installation fleets.
Segment Analysis
The report analyzes the market by offering, current type, voltage, insulation, application, end user, and geography, helping stakeholders identify the most attractive areas for capacity investment, bidding, and partnering.By offering, the submarine power cables market is segmented into cables, installation & marine services, and repair, maintenance & monitoring services. Cables, which include export, array & inter-array, and interconnector cables along with accessories, joints & terminations, are expected to hold the largest share in 2026, as their material content grows with rating and route length, cable production sets each project's schedule, and order books already contain several years of supply. Installation & marine services are expected to grow at the highest CAGR, driven by the shortage of vessels able to handle heavy direct current cable, rising day rates, and suppliers bringing the offshore scope in-house. Repair and monitoring services will also grow strongly as more circuits enter service.
By current type, the submarine power cables market is segmented into high voltage alternating current (HVAC) and high voltage direct current (HVDC). Alternating current is expected to hold the largest share in 2026, as it serves array cabling and shorter export and island links, where it avoids converter stations and charging current is not a constraint over modest distances. Direct current is expected to grow at the highest CAGR, supported by wind farms sited further from shore, higher standard transfer ratings for offshore grid connections, and long links between distant markets. Higher value per kilometer and tight qualified capacity also support its pricing.
By voltage, the submarine power cables market is segmented into high voltage above 220 kV, medium-high voltage 33 kV to 220 kV, and low & medium voltage up to 33 kV. The above 220 kV segment is expected to hold the largest share in 2026, as interconnectors and export circuits carry most transferred power, command the highest value per kilometer, and dominate supplier order book value. The 33 kV to 220 kV segment is expected to grow at the highest CAGR, as large wind farms switch array cabling from 33 kV to 66 kV to cut strings and losses, and higher turbine counts lengthen array circuits. Cables up to 33 kV will grow more slowly but stay relevant for island, platform, and aquaculture links.
By insulation, the submarine power cables market is segmented into cross-linked polyethylene (XLPE), mass impregnated, fluid-filled & paper-insulated, and other insulation types. Cross-linked polyethylene is expected to lead in 2026 and grow the fastest, as it is proven in alternating current circuits at all voltages, now qualified at the direct current voltages specified for new projects, lighter and more flexible than mass impregnated cable, and free of fluid handling needs. Mass impregnated cable keeps a role on long direct current routes where extruded designs are not yet qualified, while fluid-filled & paper-insulated cable is shrinking to replacement and repair work.
By application, the submarine power cables market is segmented into offshore wind, interconnectors & transmission links (including cross-border links), island & offshore platform connection, and other applications. Offshore wind is expected to account for the largest share in 2026, as every farm requires both array and export cabling, capacity commitments in Europe and Asia-Pacific are large, and cable content rises with distance from shore and turbine count. Interconnectors & transmission links are expected to grow at the highest CAGR, given the high value of each link, wider price gaps between connected markets, and the role of interconnection in balancing renewable output. Island & offshore platform connection should grow steadily as shore power replaces gas turbines on platforms.
By end user, the submarine power cables market is segmented into transmission system operators & utilities, offshore wind developers & independent power producers, oil & gas operators, and other end users. Transmission system operators & utilities are expected to hold the largest share in 2026, as they own interconnectors and, in several countries, offshore transmission assets, and increasingly buy through multi-project frameworks such as TenneT's award to NKT. Offshore wind developers & independent power producers are expected to grow at the highest CAGR, as array cabling usually stays with the developer, rising turbine counts lengthen array circuits, and developers still buy export cables in markets where system operators do not take over offshore transmission. Oil & gas operators will add demand as platform electrification advances.
Regional Analysis
The report covers four regions (Europe, Asia-Pacific, North America, and Rest of the World), spanning 17 countries, Rest of Europe and Rest of Asia-Pacific groups, and the Middle East & Africa and Latin America. The regional analysis of the submarine power cables market considers offshore wind and interconnector pipelines, transmission ownership rules, local factory and vessel capacity, and permitting conditions.Europe is expected to hold the largest share of the submarine power cables market in 2026, supported by offshore wind in the North Sea, Baltic Sea, and Irish Sea, interconnectors within Europe and with neighboring systems, framework buying by system operators, and platform electrification on the Norwegian and U.K. continental shelves. The region is also home to leading suppliers such as Prysmian, Nexans, NKT, Hitachi Energy, JDR Cable Systems, DEME Group, Van Oord, and Jan De Nul Group.
Asia-Pacific is expected to grow at the highest CAGR, driven by offshore wind programs in China, Japan, South Korea, Taiwan, and Vietnam and by island grid links. With European capacity booked for years, projects there rely mainly on regional makers such as Sumitomo Electric Industries, LS Cable & System, Taihan Cable & Solution, and Hengtong Group. North America holds a smaller but growing share, supported by links into constrained load centers and Atlantic offshore wind, although permitting and policy have slowed the latter. The Rest of the World remains limited, with island links, Middle East platform electrification, and early-stage projects in Latin America and Africa that often rely on international contractors and development finance.
Competitive Landscape
The report provides a detailed review of the competitive landscape, covering key growth strategies, competitive benchmarking, the competitive dashboard, and market share/rank analysis by key player for 2025. Company profiles include business and financial overviews, manufacturing and vessel footprints, product portfolios, order backlogs, strategic developments, and SWOT analyses.The submarine power cables market is consolidated in high voltage direct current, where few manufacturers are qualified at current ratings, and more fragmented in array cabling, island links, and marine services, where regional cable makers and dredging contractors also compete. Suppliers compete on qualified capacity, vessel access, prequalification, delivery credibility, jointing skills, execution record, and total delivered cost. Leading companies are investing in plants and vessels, taking installation in-house, bidding more selectively with tighter terms, and signing frameworks that reserve capacity years ahead. Recent developments include the Nexans Electra entering service in 2026, NKT's Karlskrona and Cologne expansions and second vessel due in 2027, and the five-project TenneT framework award to NKT.
Key companies profiled in the report include Prysmian S.p.A. (Italy), Nexans S.A. (France), NKT A/S (Denmark), Sumitomo Electric Industries, Ltd. (Japan), Furukawa Electric Co., Ltd. (Japan), Fujikura Ltd. (Japan), LS Cable & System Ltd. (South Korea), Taihan Cable & Solution Co., Ltd. (South Korea), Hengtong Group Co., Ltd. (China), Jiangsu Zhongtian Technology Co., Ltd. (China), Ningbo Orient Wires & Cables Co., Ltd. (China), Hitachi Energy Ltd (Switzerland), Twentsche Kabelfabriek B.V. (Netherlands), JDR Cable Systems Ltd (U.K.), DEME Group NV (Belgium), Van Oord N.V. (Netherlands), Jan De Nul Group (Luxembourg), and Royal Boskalis N.V. (Netherlands).
How This Report Helps
- Provides reliable market size estimates and long-term forecasts for the global submarine power cables market.
- Explains how offshore wind, interconnectors, the shift to direct current, and framework contracting are driving demand.
- Assesses the effect of limited factory and vessel capacity, project timing, and fixed-price risk on supplier revenue.
- Identifies high-growth opportunities across offering, current type, voltage, insulation, application, end user, and region.
- Benchmarks leading cable makers and marine contractors on capacity, installation assets, backlog, and developments.
- Supports investment, bidding, procurement, partnership, and market entry decisions for suppliers, system operators, developers, and investors.
Key Questions Answered
- How big is the global submarine power cables market today, and how will it grow through 2036?
- Why are supplier backlogs at record levels while organic revenue at some suppliers is flat or falling?
- What are the main drivers, restraints, opportunities, challenges, and trends shaping the market?
- How will new cable factories and laying vessels change supply and pricing over the forecast period?
- Which offering, current type, voltage, insulation, application, and end user segments will grow the fastest?
- How quickly is direct current replacing alternating current in export and interconnector circuits?
- How are framework agreements changing procurement by transmission system operators?
- Which regions and countries offer the most attractive business opportunities?
- Who are the leading companies in the market, and how do they compare on capacity and installation assets?
Table of Contents
1. Introduction
2. Research Methodology
4. Market Insights
5. Submarine Power Cables Market, by Offering
6. Submarine Power Cables Market, by Current Type
7. Submarine Power Cables Market, by Voltage
8. Submarine Power Cables Market, by Insulation
9. Submarine Power Cables Market, by Application
10. Submarine Power Cables Market, by End User
11. Submarine Power Cables Market, by Geography
12. Competitive Landscape
13. Company Profiles
14. Appendix
LIST OF TABLES
LIST OF FIGURES
Companies Mentioned
- Prysmian S.p.A.
- Nexans S.A.
- NKT A/S
- Sumitomo Electric Industries, Ltd.
- Furukawa Electric Co., Ltd.
- Fujikura Ltd.
- LS Cable & System Ltd.
- Taihan Cable & Solution Co., Ltd.
- Hengtong Group Co., Ltd.
- Jiangsu Zhongtian Technology Co., Ltd.
- Ningbo Orient Wires & Cables Co., Ltd.
- Hitachi Energy Ltd
- Twentsche Kabelfabriek B.V.
- JDR Cable Systems Ltd
- DEME Group NV
- Van Oord N.V.
- Jan De Nul Group
- Royal Boskalis N.V.
