A 35-kilowatt flexible low-frequency transmission project, the first of its kind in China, was put into use in Taizhou, East China's Zhejiang province, on June 16.

The project transmits the 20 hertz low-frequency AC power generated by wind turbines on the city's Dachen Island to the mainland.

The facility will improve the stability of the electricity supply on the island, as the newly built cable can also serve as a backup channel to transmit power to the island should the original one be overhauled or cease to operate.

Located 52 kilometers from the urban area of Taizhou, Dachen Island spans 14.6 square kilometers and is dubbed the "Pearl in the East China Sea".

According to Tang Yiqin, deputy chief engineer of the Taizhou branch of the State Grid, low frequency AC transmission can enhance both transmission capacity and distance, while greatly reducing equipment investment and maintenance costs when applied in the delivery of offshore wind power in medium and long distances.

The project's operation has paved the way for the wider commercial application of low-frequency power transmission technologies in the future and will bolster the nation's shift to be a green and low-carbon economy, said Tang.

China aims to hit peak emissions before 2030 and achieve carbon neutrality by 2060.