Microscale Wind Assessment, Comparing Mesoscale Information and Observed Wind Data

One of the most common problems in wind resource assessment is that measured data are not always available at site interest. That why, several studies, reanalysis have been used as an alternative, which, some cases, validated by data. Mexico no exception, since there many measurement towers country provide valid records throughout country. In view above, this study a comparison was made between measurements observed six anemometric towers, located different locations United Mexican States; from MERRA-2 and ERA-5 reanalysis; generalized climates (GWC), Global Wind Atlas. The conducted 80 m, which highest height were recorded on each site. case data, extrapolation series to m required. two sets anemometers available, performed. This analysis supported Windographer version 4 software designed company UL solutions, *.tab files exported then imported WAsP 10.0 program perform microscale modeling. variable mean power density, for relative deviations values those obtained GWCs determined. For better interpretation errors calculated, orographic characteristics all sites performed using roughness index (RIX). results showed behavior GWC homogeneous studied; therefore, adequate relationship magnitudes ΔRIX observed, especially ERA5 GWC. furthest with greater than 50% five sites; however, closest less 11%, except La Venta site, where it 29.5%—a also had high deviation 139.4%. latter attributable effects caused nearby farms flow station. general, alternative performing pre-analysis Mexico.