Doosan Heavy installs 8-MW offshore wind turbine prototype in S Korea

View of the 8-MW offshore wind turbine at the Korea Wind Power Demonstration Center in Baeksu, Yeonggwang. Image source: Doosan Heavy (www.doosanheavy.com)

January 31 (Renewables Now) - South Korea’s Doosan Heavy Industries & Construction (KRX:034020) last week installed its 8-MW offshore wind turbine prototype at the Korea Wind Power Demonstration Center in Baeksu, Yeonggwang county in South Jeolla Province.

The machine has a 100-metre (328.1 ft) long blade and a tower that is 130 metres high, which brings the total hight from ground to the tip of the blade to 232.5 metres. According to Doosan Heavy, its prototype is Korea’s largest wind turbine to date.

Other features include a gearless direct drive-type generator, which has the advantage of providing higher structural stability and energy efficiency, owing to the simplified power transmission system, and lower maintenance costs, the company said.

The turbine can produce 8 MW at wind speeds of 11 metres per second and shows a utilisation rate of 30% or higher when the average wind speed is 6.5 metres per second, Doosan further states.

The project is a result of an industry-academia-research sector cooperation led by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) since 2018.

“We have been working on developing a model that is specially designed to suit the conditions of the Korean wind environment, a typhoon-prone region that has an average wind speed that is comparatively lower than Europe,” said Hongook Park, CEO of Doosan Heavy’s Power Services Business Group.

“By adding this large-capacity 8MW model to our existing models that include the 3MW and 5.5MW wind turbines, we have effectively expanded our product line-up,” Park added.

The commissioning of the prototype was to start by the end of January. Doosan Heavy then expects to obtain international certification and prepare to complete the commercial launch in June.

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