Assessment of wind energy resources in Nigeria – a case study of north-western region of Nigeria

Abstract

This study assesses the wind-energyresources in Nigeria by reviewing the existing literature on the subject matter, and also evaluates the wind potential in six locations in the northwest region of the country. Twenty-two years ' (1984 -2005) wind speed data obtained from the Nigerian Meteorological Agencies (NIMET) were used in this study.Weibull two-parameter and other statistical models were employed in this analysis. Wind speed distribution across Nigeria shows that some locations in the northern part of the country are endowed with higher wind potential than others in the southern part of the country. Moreover, assessment of the wind-energy resources in the study locations reveals that wind energy potential in the region is lowest in Yelwa and highest in Kano; WPD varies from 28.

Estimation of Global Solar Radiation using Angstrom and Gopinathan Model on Sunshine Hour and Temperature in Highland, Nepal

“…declination angle in degree Ho is determined by using equation defined by Duffi and Beckman (1991) 𝐻 = 𝐼 1 + 0.33 cos( ) [cos ∅ cos 𝛿 sin 𝜔 + sin ∅ sin 𝛿] is altitude of the site in kilometer. To compute the estimated values of global solar radiation, the values of a and b are used in Equation (1) given by Angstrom.Olomiyesen and Oyedum ModelA two parameter -based empirical model is developed by Olomiyesan andOyedum(Olomiyesan et al, 2017) to estimate global solar radiation and is given by, difference and a, b and c are empirical constants which are to be determined.…”