Certifications from an operators point of view

Date: Jun 3-4, 2014
Location: Berlin
Presenter: Thomas Stalin, Senior Wind Technology Expert, Vattenfall Wind Power AB
Conference: SKF 9th Annual Wind Farm Management Conference


Certifications of wind turbines warrants that the rotor will not fall off. The engineering work has been checked and approved. However it is not a guarantee that the main components will survive the intended 20 years of life. The problem with the gearboxes >1 MW had proven in black and white that these certification standards are without some unknown load cases ("pink elephants"). Standards take long time to work out and may be outdated. Standardization work includes a lot of negotiation between different interests of the turbine manufacturer, the sub supplier and the end user. Certification does not include quality control of the production process.

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