Impact of Climate Variability on Reservoir Based Hydro-Power Generation in Jebba Dam, Niger State, Nigeria

Hadiza Muhammad Liman (Department of Geography, Ibrahim Badamasi Babangida University, Lapai, Nigeria)
Peace Nwaerema (Department of Geography, Ibrahim Badamasi Babangida University, Lapai, Nigeria)
Jacob Yisa (Department of Geography, Ibrahim Badamasi Babangida University, Lapai, Nigeria)


This study examined impact of climate variability on reservoir-based hydro-power-generation in Jebba dam, Niger State of Nigeria. Data of rainfall, temperature, evaporation, reservoir inflow and outflow and power output for thirty-one years were obtained from Jebba Hydropower Station [JHP]. The Man-Kendall and Pearson’s Product Moment Correlation Coefficient (PPMCC) were used to establish the influence of weather parameters on the reservoir inflow and outflow. Findings showed increased electricity generation during dry season than wet season. The highest annual mean amount of the electricity generated was in 2016 having mean of 689.12mwh, dry season (352.26mwh) and wet season (336.86mwh). Reservoir inflow showed negative trend with severe fluctuations in 1998 (1436.42M3/Sec), 1999 (1581.08M3/Sec) and 2010 (1641.08M3/Sec) with steady increase in 2016 (1556.0042M3/Sec), 2017 (1556.4242M3/Sec) and 2018 (1635.7542M3/Sec). The reservoir outflow pattern showed tremendous and negative trend in fluctuation with increase in 1998 (1421.75M3/Sec) 1999 (1581.58M3/Sec) and 2010 (1641.16M3/Sec) and a steady increase in 2016 (1535.00M3/Sec), 2017 1558.83M3/Sec and 2018 (1632.00M3/Sec). Thus, rainfall and reservoir inflow had strong relationships with the amount of power generated than temperature and evaporation. Therefore, the government should increase the water carrying capacity of the reservoir construction by storing water to be used during dry periods.


Evaporation; Hydro-Power; Rainfall; Reservoir; Temperature

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[1] Farlex (2013), The Free Online Dictionary.

[2] Mohammed, B. M. and Satendra, S. (2017), “Assessment of Climate Change Impact on Hydropower Generation: A Case Study of Nigeria”. Department of Physics, Yobe State University, Damaturu, Yobe State, Nigeria.

[3] Adegbehin, A. B. 1, Iguisi, E. O., Yusuf, Y. O. Zubairu, I. and Anumonye, E. N. (2016), “Effect of Weather Parameters on Hydroelectric Power Generation in Kainji Dam”. Niger State, Nigeria.

[4] John, C. J. and James, T. T. (2011), “Annual Energy Outlook. United States Energy Information Administration”.

[5] United Nations [UN] (2017), “World population projected to reach 9.8 billion in 2050, and 11.2 billion in 2100”, Department of Economic and Social Affairs.

[6] Olukanni, D. O., Adejumo, T. A. and Salami, A. W. (2016), Assessment of Jebba Hydropower Dam Operation for Improved Energy Production and Flood Management. Journal of Engineering and Applied Sciences, 11(3), 8450-8467.

[7] United States Department of the Interior [USDI] (2005), ‘Hydroelectric Power”. United States Department of the Interior, Bureau of Reclamation Power Resource.

[8] Nakicenovic, I. J. (1996), Freeing Energy from Carbon, in Daedalus, Journal of the American Academy of Arts and Science, 2(1), 95-112.

[9] Madueme, T.C. (2017), Electric Power Consumption Reduction in the University of Nigeria, Nsukka Power Network, Journal of Electrical and Electronics Engineering, 12(4), 11–18.

[10] Boko, M., Niang, I., Nyong, A., Vogel, C., Githeko, A., Medany, M., Osman-Elasha, B., Tabo, R. and Yanda, P. (2007), “Africa. Climate Change 2007, Impacts, Adaptation and Vulnerability”, Contribution of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, M. L. Parry, O. F. Canziani, J. P. Palutikof, P. J. van der Linden and C.E. Hanson, Eds., Cambridge University Press, Cambridge UK, 433-467.

[11] Salami, A.W., Raji, M.O., Sule, B.F, Abdulkareem, Y.A. and Bilewu, S.O. (2010), “Impacts of Climate Change on the Water Resources of Jebba Hydropower Reservoir”, Second Annual Civil Engineering Conference, University of Ilorin, Nigeria.

[12] Ifabiyi, I.P. (2011), Contributions of Reservoir Elements to Monthly Electricity Generation in the Jebba Hydropower Reservoir, Nigeria. Journal of Applied Sciences, 2, 251 – 263.



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