Assessing the Impact of Climate Variability on Hydropower Generation in Parts of the Lower Niger River Basin, Nigeria

Abstract

Abstract: This paper is on the assessment of the changing World climatic situation and the attendance consequences on water resources and hydropower generation. This the specific objective is to assess the impact of changes in hydroclimatic variables on hydropower generation in the study area. Subsequently, multiple correlation and multiple regression analyses were used to determine the relationship between hydroclimatic variables and power generations. Also, water balance analyses was carried out to examine climate and water yield relationship. Ultimately, the results indicate a correlation coefficient of between 0.73 and 0.85 on power output and hydroclimatic variables. It is therefore recommended that alternative water optimisation procedures be provided for the dams based on the knowledge of the association between hydroclimatic variables and power generation. Also, continuous monitoring of changes in the hydroclimatic variables be intensified to provide early warning for effective performance of the dama and to protect downstream environment of the dams.