BEIJING/SINGAPORE-* China's offshore oil and gas major CNOOC Ltd announced on Tuesday that its first offshore wind power project has connected to the grid and begun to generate power

* The wind power project, located in the sea area nearby China's eastern province of Jiangsu, and with a total installed capacity of 300 megawatts, is scheduled to fully come into on-grid production by end of 2020, CNOOC said in a press release

* The project, planned to be equipped with 67 wind turbines, is expected to have annual on-grid power generation reaching approximately 860 million Kilowatt-hours, CNOOC said

* China's state energy giants including PetroChina , Sinopec and CNOOC Ltd have all laid out plans to develop renewable projects, in an effort to stay relevant in a low-carbon future.

(Reporting by Muyu Xu in Beijing and Chen Aizhu in Singapore, editing by Louise Heavens) ((Hallie.Gu@thomsonreuters.com; +86 10 56692120; Reuters Messaging: hallie.gu.thomsonreuters.com@reuters.net))