Wind resource assessment uncertainty for a TLP-based met mast

Abstract

The current work presents wind resource assessment results of a complete one-year offshore measurement campaign in the Aegean Sea, at 65 m deep waters, with a floating tension leg platform (TLP) equipped with a met mast reaching the height of 44 m above mean sea level (AMSL). Wind conditions uncertainty is evaluated according to the existing standards and guidelines and the additional uncertainty, due to the platform motion, is addressed with two different methods: First by performing wind tunnel experiments, in which the wind sensors are submitted to various controlled motions and second by comparing results of the onboard lidar to a nearby onshore one. Both methods converge that the motion effects are minimal and the additional uncertainty of the mean values due to the TLP motion is ≤1%.