Business & IndustryAnalysis
China Connects World's First 16-MW Tension-Leg Floating Wind Platform to Offshore Oilfield Grid
CNOOC's Haiyou Anlan platform begins powering the Lufeng Oilfield, advancing deep-water floating wind engineering and offshore asset decarbonization.
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Kritzolina via Wikimedia Commons, CC BY-SA 4.0
The Brief
China National Offshore Oil Corporation (CNOOC) has connected "Haiyou Anlan," the world's first 16-megawatt (MW) tension-leg platform (TLP) floating wind turbine, to the Lufeng Oilfield power grid. Located in the Pearl River Estuary Basin, 200 kilometers southeast of Shenzhen, the structure operates in waters 136 meters deep and 136 kilometers offshore. Built to withstand Category 17 typhoons, the unit is expected to supply 54 million kilowatt-hours of green electricity annually, displacing 15,000 cubic meters of fuel oil and reducing carbon emissions by 35,000 metric tons.
Why it matters
The commissioning of Haiyou Anlan marks a significant technical milestone in deep-water floating offshore wind, validating tension-leg platform architecture under harsh ocean conditions. By pairing a high-capacity 16-MW turbine with a multi-energy hybrid grid on an operational offshore oilfield, CNOOC provides a practical industrial template for reducing the carbon intensity of offshore hydrocarbon extraction while expanding deep-water wind potential.
China context
China possesses substantial deep-sea wind energy potential, with the National Climate Center estimating technically exploitable deep-water offshore wind resources at over 1.2 billion kilowatts. As shallow-water and near-shore coastal marine zones face growing spatial bottlenecks, moving into deeper ocean territory is critical to meeting national carbon peak and neutrality targets. The Haiyou Anlan project reflects how China's state-owned energy majors are utilizing offshore construction expertise to transition legacy offshore assets toward low-carbon operations.
Editor's View
EDITOR'S VIEW — Analysis and inference, not factual reporting.
The deployment of Haiyou Anlan demonstrates a pragmatic approach to decarbonizing offshore oilfield operations. Instead of treating offshore fossil fuel extraction and renewable generation as incompatible sectors, CNOOC's integration of floating wind, diesel power, and energy storage establishes a flexible microgrid capable of managing wind volatility. Furthermore, choosing a tension-leg platform over a semi-submersible design yields clear structural advantages in steel consumption efficiency and spatial footprint. If sustained operational data verifies its typhoon endurance and grid stability, this TLP system could significantly lower capital expenditure barriers for global deep-water wind power.
What to watch
- Structural performance and mooring system integrity of the TLP platform during extreme typhoon weather.
- Real-world fuel savings and power dispatch performance of the wind-fuel-storage hybrid microgrid.
- Potential deployment of tension-leg platform technology in broader commercial deep-water wind farm developments.
Key Takeaways
- 1CNOOC commissioned 'Haiyou Anlan,' the world's first 16-MW tension-leg platform floating wind turbine, connecting it to the Lufeng Oilfield grid.
- 2Located 136 kilometers offshore in 136-meter-deep waters, the platform is designed to withstand Category 17 typhoons and produce 54 million kWh of green electricity annually.
- 3The project features a hybrid offshore microgrid combining wind energy, fuel generation, and energy storage to overcome renewable power intermittency.
- 4Tension-leg platform technology provides structural stability while reducing steel consumption and marine surface area usage compared to semi-submersible platforms.
China National Offshore Oil Corporation (CNOOC) has officially commissioned "Haiyou Anlan," connecting the world's first 16-megawatt (MW) tension-leg platform (TLP) floating wind installation to the electrical grid serving the Lufeng Oilfield, according to a report by People's Daily.
Positioned in the Pearl River Estuary Basin roughly 200 kilometers southeast of Shenzhen, the platform operates at a water depth of 136 meters and an offshore distance of 136 kilometers. Reaching a height equivalent to nearly 110 stories and weighing 7,800 metric tons, the structure carries a typhoon-resistant 16-MW wind turbine with a rotor swept area equal to 7.5 standard football fields. Designed to withstand extreme conditions up to Category 17 typhoons, the platform is expected to generate 54 million kilowatt-hours of green electricity annually. This output will offset 15,000 cubic meters of fuel oil consumption per year and cut carbon dioxide emissions by 35,000 metric tons.
The facility represents China's first operational TLP floating wind installation, a specialized engineering approach tailored for deep-water applications. According to Yu Yingping, CNOOC's project lead, a tension-leg platform consists of an upper floating hull, seabed anchoring foundations, and vertical mooring lines. Tightly tensioned vertical steel cables pull the floating structure downward while hull buoyancy pushes upward, anchoring the platform firmly to minimize vertical heave and sway compared to traditional semi-submersible platforms. This configuration offers higher overall stability, lowers steel consumption per megawatt, and occupies less surface sea area, reducing spatial conflicts with conventional maritime activities.
To accommodate wind power volatility, CNOOC linked the platform to the Lufeng Oilfield grid via a 4.3-kilometer subsea cable. The operator implemented a multi-power microgrid model integrating offshore wind, fuel-based generation, and battery energy storage. This architecture enables high-penetration wind power integration, decreasing the oilfield's reliance on fossil fuels and providing a scalable model for marine energy decarbonization.
Sources
- 全球首座16兆瓦张力腿浮式风电平台“海油安澜号”投运--经济·科技--人民网 — People's Daily · 8/6/2026