Both companies signed a 140MW pre-agreement in 2017.

The latest agreement covers three blade types – the LM 66.9 P, LM 66.9 P2 and LM 69.0 P – which are targeted for international and domestic China markets.

The blades will be manufactured at LM Wind Power’s plant in Qin Huang Dao, in the northeastern part of China, between 2018 and 2021.

Goldwind product delivery center general manger Xu Lei said: “This agreement is a milestone between Goldwind and LM Wind Power, setting up a successful model of strong, strategic cooperation between our two companies.

“Goldwind is committed to delivering turbines that meet the highest quality and reliability standards. With LM Wind Power’s new 3-4MW 66.9- and 69.0-meter blades, we know we get the quality, technology and reliable manufacturing expertise required by both the Chinese and international markets.”

The first variant of this blade series, the LM 66.9 P, has been installed on Goldwind’s 3MW prototype wind turbine platform, the GW3S.

Under the latest agreement, LM Wind Power will develop the LM 66.9 P2 for stronger wind speeds and the new LM 69.0 P, an extension of the original 66.9-meter blade.

LM Wind Power vice-president of sales and marketing Dorte Kamper said: “We are thrilled by our extended partnership with Goldwind. Our close collaboration will support their global expansion with a flexible solution where the same platform gives three variants, usable for different wind classes and different requirements.”

LM Wind Power has been operating in China since 2001 and employs more than 3,000 people in the Asian country. It operates three blade-manufacturing facilities in Qinhuangdao, Jiangyin and Baodi.

LM Wind Power has rotor blade manufacturing factories in Brazil, Canada, China, Denmark, India, Poland, Spain, France, Turkey and the US.