China has reached a new milestone in clean energy after the world’s first 20-megawatt offshore wind turbine was successfully commissioned and connected to the power grid off the coast of Fujian Province.

The project marks China’s first offshore installation, commissioning, and grid connection of an ultra-large-capacity 20-MW turbine, highlighting major progress in turbine research and manufacturing, offshore construction, and large-scale project operations, The Caspian Post reports via Chinese media.

Installed more than 30 kilometers offshore in waters deeper than 40 meters, the turbine stands out for its sheer scale. Its hub height reaches 174 meters-roughly equivalent to a 58-story building-while its 300-meter rotor diameter sweeps an area comparable to 10 standard football fields.

Under rated operating conditions, the turbine is expected to generate over 80 million kilowatt-hours of electricity annually, enough to cover the yearly power needs of about 44,000 households. It can also replace nearly 22,000 tonnes of standard coal each year, significantly cutting carbon emissions.

The 20-MW turbine features domestically developed airfoil blades and incorporates lightweight design and digital intelligent integration. As a result, its weight per megawatt has been reduced by more than 20 percent compared with the industry average, boosting wind capture and power generation efficiency.

According to project developers, the installation provides critical technological and equipment support for China’s push to expand offshore wind power into deeper and more distant waters-reinforcing the country’s position as a global leader in renewable energy development.