On April 7, construction officially began on the Sanshan Island Offshore Wind Power Flexible DC Transmission Project in Yangjiang city, Guangdong province, China's first integrated onshore-offshore flexible DC wind power transmission project. Starting from Sanshan Island in Yangjiang, the project includes a 500 kV transmission line — featuring a 115-kilometer submarine cable and a 178-kilometer land-based section.

Upon completion in October 2026, the project is expected to deliver approximately 6 billion kWh of clean electricity to the Guangdong-Hong Kong-Macao Greater Bay Area each year. This is equivalent to avoiding the use of 1.74 million tons of standard coal and reducing carbon dioxide emissions by around 4.63 million tons, providing a powerful boost to the region's green economic development.

Planned and constructed entirely by CSG, the project adopts a unified onshore-offshore design, effectively creating a "deep-sea power highway" for offshore wind power transmission. This innovative model addresses the challenge of transmitting large-capacity, long-distance offshore wind power, while enhancing the efficient use of sea, land, and airspace resources. It also helps lower construction costs for offshore wind energy, paving the way for more sustainable energy development in the region.