Preliminary Wind Resource Assessment at the Mearim River Edge

Abstract

This study presents a significant initial assessment of the wind potential of the Bacabeira region in the Brazilian state of Maranhão, using data from a Sonic Detection and Ranging (SODAR) station installed on the eastern bank of the Mearim River. Our preliminary findings suggest substantial wind potential, highlighting favorable geographic characteristics that support wind energy exploitation. For the evaluation of the region’s energy potential, a measurement period was established using a SODAR, with wind data measured by profiling. Two methodologies were then applied for estimating turbine power output: the rotor equivalent wind speed (REWS) and the hub height method. The region proved promising for this kind of energy exploitation, presenting daily capacity factors up to 0.70 in a month of moderate winds in the area.