Andreas Wolf Ciavarra

Hi Rogier, Thanks again for the detailed answer and for the advice 🙂

Hi Rogier, Thanks for your reply. Could you elaborate more regarding the sentence "the vertical profile models are imperfect"? More in detail, how good or how bad does WAsP work in the vertical direction? Is the vertical wind profile only dependent on the log law, or are other components contributing as well? My issue is that I am trying to calculate the power of a wind turbine at 135 m by using .tab files from VORTEX extracted at different heights (from 50m to 130 m with a step of 10m), and I got a power production that is inversely proportional to the height at which I get the data from. In other words, the AEP at 135 m calculated with a .tab file extracted at 50 m is by far higher than the AEP at 135 m calculated with the data extracted at 130 m. So I was wondering how the wind speed is calculated in height. BR Andreas Wolf Ciavarra

I am sorry for some reason I couldn't delete this topic, so please if could do this. I will open another one BR Andreas

Hello, I would like to have a deeper understanding of the vertical development of wind speed in WAsP. More in detail my company bought some data (MAST product - .tab file) from VORTEX which I extracted at different heights (from 50 m to 130 m with a step of 10m) and I used them in WAsP to generate the GWC. What I experience is a decreasing behavior of the AEP the higher is the elevation at which that the predicted wind speed at 130 m from the data extracted at 50 m is 7,94 m/s and the predicted wind speed at 130 m from the data at 60 m is 7,81. The decreasing behavior goes all the way to 130 m where the wind speed is 7.29 . I experience the same decreasing development also for the AEP and for the percentage difference between a predicted wind speed from a given height to 130 m and the actual wind speed at 130 m. . I created then a reference site that matches the met mast but with a height of 130 m I know that the vertical development of the wind speed is expressed with the log-law, but I was wondering if it could be possible to have some deeper insight into this. BR Andreas Wolf Ciavarra

Hello, I am getting this type of error when working with WAT. Could you kindly help me out? BR Andreas Wolf Ciavarra