CTG connected the initial turbines on 27 September for a 2 GW, 163-turbine site off Yangjiang, using a ±500 kV flexible HVDC subsea export system and a 25,000-tonne offshore converter platform.
The project uses a ±500 kV flexible HVDC export system with two ~91 km subsea cables and a 25,000-tonne offshore converter platform that steps 66 kV AC up to ±500 kV DC.
CTG expects the fully operational farm to generate about 6 TWh annually and avoid roughly 5 million tonnes of CO2 per year.
China Three Gorges Corporation (CTG) has connected the first batch of turbines at the Qingzhou V & VII offshore wind project. The initial grid connections took place on 27 September. The site is located about 70 kilometres off Yangjiang in Guangdong Province and will total 2 GW, made up of 163 turbines with individual capacities exceeding 12 MW.
Qingzhou V & VII uses a flexible high-voltage direct current (HVDC) transmission solution at ±500 kV. Collected electricity is brought to an offshore converter platform at 66 kV AC, converted and stepped up to ±500 kV DC, then sent to shore through two subsea HVDC cables. CTG describes the project as the first large-scale offshore wind flexible HVDC transmission project and the first use of ±500 kV DC subsea cables for offshore wind.
The offshore converter platform, referred to by CTG as the "Heart of Offshore Wind," weighs 25,000 tonnes and was installed this summer by COSCO Shipping Specialized Carriers. Orient Cable (NBO) supplied the HVDC subsea cables under an EPCI scope. Each of the two export cables is about 91 kilometres long with a conductor cross-section of 2,500 mm².
The wind farm uses 30 inter-array cable circuits at 66 kV, with five or six turbines connected into each circuit. One inter-array connection is a dynamic 66 kV cable feeding a 16 MW floating turbine. The turbines at Qingzhou V & VII sit on four-legged jacket foundations and were installed over a 14-month window after work began in May 2025. During peak activity, as many as eleven large vessels worked on site simultaneously, and the developer reported installing 23 turbines of 12 MW or larger in a single month.
Expected output and emissions impact
Once fully operational, CTG expects the 2 GW site to produce approximately 6 TWh of electricity per year. CTG says that output will avoid around 5 million tonnes of CO2 emissions annually.
CTG has started grid connection for the first turbines. The developer will continue turbine commissioning, complete integration of the full inter-array and export systems, and bring the remaining units online toward full 2 GW operation.
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