70 turbines make up the plant.
China Huaneng has completed the 300MW Huaneng Rudong project that comprises of 70 turbines with 4MW-5MW capacities each.
Huaneng added that this is China's first time that a 5MW offshore wind turbine has been used in a commercial deployment.
The project site is around 14km away from the city of Nantong in Jiangsu province and was started in July 2015.
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