China has completed the installation of its largest floating offshore wind platform of 16 MW In deep waters, in a project that has become one of the most significant technological milestones in recent offshore wind energy. The infrastructure is located more than 70 kilometers from the coast, in areas over 50 meters deep, and is designed to operate in a particularly demanding marine environment.
This new platform, which combines a high-power wind turbine with a semi-submersible floating structure and an advanced mooring system, It marks a qualitative leap in the development of deep-water wind energyBeyond the technical record, the project sends a clear message to Europe and, in particular, to countries like Spain, which are preparing their first tenders for floating offshore wind.
A giant floating wind turbine off the coast of Guangzhou
The platform, known as 'Sanxia Linghang' and promoted by the state group China Three Gorges CorporationIt has been installed off the coast of Yangjiang, in the southern province of Guangdong. It is a semi-submersible floating structure equipped with a 16 MW turbine capable of operating in the open sea, far from the coast and on the seabed where fixed foundations are no longer feasible.
The machine sits on a platform of approximately 81 x 91 meters and more than 24.000 tonsDesigned to maintain stability even in extreme waves and high-intensity gusts of wind, the rotor, approximately 252 meters in diameter, sweeps an area equivalent to several football fields, allowing it to capture a considerable amount of energy with each rotation.
According to initial estimates, the turbine could reach a annual production close to 44,65 million kWhEnough energy to power tens of thousands of homes. This figure places the project among the most powerful floating installations in the world and reinforces the idea that the leap to offshore power is accelerating.
The installation was fully assembled at the port of Tieshan in the Guangxi region, from where it was towed to its final location across the Qiongzhou Strait. This logistical process demonstrates the capacity of Chinese industry to integrate the entire floating wind power value chainfrom key components to open-sea deployment.
Engineering for deep water and extreme conditions
The project's location, more than 70 kilometers from the coast and at depths exceeding 50 meters, necessitates addressing technical challenges that go far beyond those of conventional offshore wind farms. In this area, The waves can exceed 20 meters in height and the winds can reach speeds of up to 73 meters per second, which requires a specific design of the platform and its fastening systems.
The main difference compared to fixed-foundation parks is that the structure is not anchored to the bottom using rigid piles, but rather It floats and adapts to the movement of the seaThis allows renewable energy generation to take place in very deep seabeds, where it was previously unfeasible to install turbines, but it also requires much more sophisticated solutions to guarantee stability and safety.
This type of project opens the door to areas with stronger and more constant windsThis is a fundamental condition for improving the energy performance of offshore installations. However, operating far from the coast involves facing additional challenges in mooring, roll control, and power transmission, aspects that have thus far hindered the mass deployment of floating wind power compared to fixed-mounted wind power.
With this platform, China takes a step forward to demonstrate that it is possible to keep a large turbine operational in an extreme marine environmentThe combination of structural design, control systems, and new anchoring technologies becomes the central focus of the project.
Key technologies: polyester cables, active ballast, and dynamic cable
One of the most striking elements of the platform is the use, for the first time in China, of high-performance polyester cables for the mooring system. These cables have been designed to absorb wave energy through elastic deformation, acting as a shock absorber that reduces stress on the structure and extends its lifespan.
The anchoring to the seabed is completed with a system of suction anchors and metal chains, which, combined with the fiber optic cables, form a dynamic mooring capable of adapting to the continuous movement of the platformThis approach allows the turbine to withstand the swaying of the waves without compromising its integrity or generation performance.
Stability is reinforced by a active ballast system Located on the columns of the semi-submersible platform, this mechanism automatically adjusts the water volume according to sea and wind conditions, thus keeping the center of gravity under control and preventing excessive tilting of the structure.
In the electrical section, the project incorporates a 66 kilovolt dynamic submarine cableDesigned to withstand platform movements without deterioration, these conductors, unlike the static cables in fixed-foundation parks, must accommodate the oscillations of the floating structure, maintaining transmission quality and minimizing the risk of failure.
Another relevant feature is that virtually all of the key components —including polyester cables, anchoring systems, and underwater electronics— has been manufactured in China. This reduces reliance on external suppliers and strengthens the country's ability to deploy new large-scale projects within controlled timelines and costs.
Differences with fixed-foundation offshore wind
Floating wind turbines differ from traditional offshore wind turbines, which have fixed foundations, in several fundamental aspects. The first is the possibility of operating in deep waterswhere pilings or rigid structures become technically or economically unfeasible. This allows parks to be located further from the shoreline, reducing the visual impact and expanding the areas available for new developments.
In these locations, the winds tend to be stronger and more regular, which translates into a more stable and predictable energy productionHowever, the trade-off is greater technical complexity: the mooring design, the dynamic behavior of the structure, maintenance, and energy evacuation are more demanding than in fixed-bottom projects.
The investment and operating costs of floating wind power remain higher than those of fixed wind power, but the progress of projects like the 16 MW Chinese project indicates that The gap may narrow as the scale increasesThis allows for the accumulation of operating hours and the optimization of the supply chain. The increase in turbine size, as this installation clearly demonstrates, is one of the key levers for reducing the cost per megawatt-hour generated.
While globally most installed offshore capacity continues to be concentrated in fixed-foundation parks near the coast, floating wind power is emerging as the great avenue of expansion for the next decadeespecially in regions with deep bottoms close to land.
China and Europe in the race for floating wind power
The deployment of this platform is part of Beijing's strategy to reduce their dependence on fossil fuels and strengthen its energy independence, while increasing its weight in the renewable energy industry chain. The Chinese wind turbine industry is already competing internationally, with manufacturers like Mingyang and CSIC present in multiple markets.
According to various sector analyses, Chinese turbine manufacturers have installed several gigawatts abroadwith a presence even in some European Union member states. However, questions remain about long-term performance, transparency in traceability, and compliance with environmental, social, and governance (ESG) standards.
The advance of China's floating wind turbines also comes at a time of growing trade tensions with the European UnionEspecially regarding public subsidies, export prices, and the role of state-owned enterprises in strategic sectors. The entry of lower-cost Asian technology in European tenders is one of the most discussed points of contention within the industry.
Implications for Spain and the rest of Europe
In the European context, China's move comes just as countries like Spain are preparing their first specific competitions for floating offshore windThe schedule points to tenders starting in 2025-2026, once the regulatory framework derived from Royal Decree 1028/2007 and its subsequent development is updated.
Spain has a long Atlantic and Mediterranean coastline With deep waters relatively close to the coast, it is an ideal location for floating wind turbines. However, this same characteristic makes the use of fixed foundations difficult, so the experience and learning curve provided by projects like the Chinese one will be especially relevant.
Currently, many European offshore wind turbine manufacturers continue to work with floating turbines power levels below 10 MWThis contrasts with the 16 MW already in operation in China. This difference in scale could translate into cost advantages for Asian projects, especially if they manage to standardize designs and mass-produce.
The Spanish port sector is also on the move: facilities such as the ports of Cadiz, Ferrol or Barcelona They have already begun adaptations to be able to assemble and launch large floating structures, aware that offshore wind energy could become a new industrial niche. The ability of these ports to attract projects will depend, to a large extent, on the conditions defined in future auctions.
One of the fundamental debates in Europe revolves around the configuration of competitions and supply chain requirementsIf tenders do not introduce criteria that value local production, European innovation, or technological diversification, the scale and cost advantage of Asian manufacturers could tip the scales in favor of a large part of the awards, with a direct impact on the continental industrial fabric.
A sector undergoing a complete energy transformation
The installation of the 16 MW floating platform in China is more than just a technical record: it functions as a sign of where global offshore wind is headedThe focus is no longer just on multiplying the number of turbines, but on increasing their size, taking them to deeper waters, and improving their integration into increasingly complex electrical systems.
This type of infrastructure contributes to diversify renewable energy sources This will reduce exposure to the volatility of fossil fuels. Furthermore, it opens up new development opportunities for coastal regions that can become industrial hubs associated with the assembly, operation, and maintenance of floating wind farms.
At the same time, the deployment of floating platforms poses additional challenges: maritime space planning, compatibility with other uses of the sea, impact on biodiversity, and the need to reinforce onshore electricity grids. Addressing these issues will be key to the orderly and socially acceptable growth of offshore wind energy.
As large-scale projects come online and accumulate operating hours under real-world conditions, the sector will have More accurate data on costs, reliability and performanceThis experience will allow us to adjust designs, refine business models, and decide which technological configurations are most competitive in each region.
The new 16 MW floating platform installed by China symbolizes, ultimately, a phase change in offshore wind: the leap to major powers in deep waters accelerates global competition, pushes Europe and countries like Spain to clearly define their strategy and consolidates floating wind as one of the central pieces of the future energy system, in which offshore wind will have an increasingly important role in the global electricity supply.
