In support of its wind turbine certification work, TÜV SÜD is implementing the LMS Virtual.Lab durability software to identify fatigue hotspots and assess their effect on component reliability. The wind turbines have to withstand many years of ever changing wind conditions. All these have to be simulated to achieve a reliable fatigue result. The process begins by the finite element model of the component to be certified. For fatigue life prediction all the wind load conditions need to be simulated and the damaging effect accumulated. The LMS durability software makes use of templates and scripting features using Visual Basic for Applications (VBA) to handle this complex set-up efficiently.