An offshore wind project in south China that set records in transmission capacity has connected its first batch of turbines to the grid, the China Three Gorges Corporation (CTG) announced on Monday.
The Yangjiang Qingzhou Phase V and Phase VII offshore wind farms feature 163 turbines with a combined installed capacity of 2 million kilowatts -- enough to power more than a million average households annually.
However, the farms are located 70 kilometers off the coast of Yangxi County, Yangjiang City in Guangdong Province, a significant distance away from actual power needs.
To address the challenges of long-distance power transmission, the turbines will use the Heart of the Sea Wind facility, or Hai Feng Zhi Xin, or "Heart of the Sea Wind" in English, which boasts the world's highest voltage and largest transmission capacity for offshore wind power.
For the first time, the facility has collected electricity generated by the turbines, raised the voltage, and then converted it to direct current (DC). This allows power to travel hundreds of kilometers underwater with minimal energy loss, making large-scale deep-sea wind power utilization commercially viable.
"The engineering team overcame multiple challenges in the South China Sea, including strong winds and waves, severe salt mist corrosion, and frequent typhoons. We efficiently completed turbine commissioning, underwater cable laying, joint system commissioning, and grid connection tests, ensuring the smooth grid connection and power generation of the first batch of generators," said Gu Pengcheng, an engineer at CTG's Yangjiang branch.
Upon full operation, the projects are expected to deliver about 6 billion kilowatt-hours of clean electricity to the Guangdong-Hong Kong-Macao Greater Bay Area annually. This is equivalent to reducing carbon dioxide emissions by nearly 5 million tons every year, contributing the green and low-carbon development of the region.
World's largest, most powerful offshore converter station for wind farms put into use
World's largest, most powerful offshore converter station for wind farms put into use
