World's Largest Offshore Converter Station Goes Live – 6 Billion kWh Transmitted Each Year.

China's largest substation: 6 billion kWh
China's largest substation: 6 billion kWh

Installation of the Record-Breaking Converter Station

According to ITC.ua — Техно: On July 23, China completed the installation of the world's largest converter station off the coast of Guangdong province. This converter station is a crucial component for integrating offshore renewable energy into the national grid, enabling efficient long-distance power transmission. The entire process took roughly seven hours. This offshore facility is designed to transmit approximately six billion kilowatt-hours of electricity each year, operating at a capacity of 2,000 megawatts and a voltage of 500 kilovolts.

Technical Specifications

The station's upper platform is massive:

  • Length: 85.5 meters
  • Width: 82.5 meters
  • Height: 44 meters
  • Weight: about 25,000 metric tons

The supporting structure beneath the platform measures:

  • Length: 82 meters
  • Width: 57 meters
  • Height: 69 meters
  • Weight: 17,000 metric tons

Eight foundation piles anchor the entire assembly to the seabed.

The new system is expected to cut carbon dioxide emissions by nearly five million metric tons annually, underscoring its role in boosting environmental sustainability and reducing greenhouse gas impact. This installation marks a significant advance in China's electrical infrastructure, enhancing energy efficiency and promoting cleaner power transmission.

This milestone is a key step in China's transition toward renewable energy sources and reducing reliance on fossil fuels. Investments in such cutting-edge technology and infrastructure can also stimulate regional economic growth by creating jobs and strengthening the country's global competitiveness. Projects like this serve as a model for other nations pursuing sustainable development and environmental security goals.


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