The Akosombo dam is Ghana‟s main source of energy. Considering the current increase in the
demand for electricity in the country, where an increase in demand implies more pressure on the
dam, it is therefore very important to investigate the tail behaviour of the water levels of the dam.
This is necessary because the level of water in the dam determines the amount of electricity
generated. The study investigated this problem using Univariate Extreme Value Theory. Both the
Generalized Extreme Value distribution and the Generalized Pareto distribution were fitted to the
Akosombo data. The Generalized Extreme Value distribution performed better than the
Generalized Pareto distribution. Maximum likelihood estimation method was employed in the
estimation of the model parameters. The study indicated that the water levels cannot fall below
226.00ft., which is the critical water level of the Akosombo dam. However, there is evidence of
the dam attaining water levels below the minimum head operation level. We therefore
recommended that, other forms of power generation should be explored to reduce the
dependence on the Akosombo dam due to the fact that the dam can attain water levels below the
minimum head operation. We also recommended that to prevent flooding during periods of
excess water and abundant inflow, the high of the reservoir should be extended to retain the
excess water which is spilled out
CDR, C (2021). Extreme Value Modelling Of The Water Levels Of The Akosombo Dam. Afribary.com: Retrieved April 15, 2021, from https://afribary.com/works/extreme-value-modelling-of-the-water-levels-of-the-akosombo-dam
Coalition, CDR. "Extreme Value Modelling Of The Water Levels Of The Akosombo Dam" Afribary.com. Afribary.com, 06 Apr. 2021, https://afribary.com/works/extreme-value-modelling-of-the-water-levels-of-the-akosombo-dam . Accessed 15 Apr. 2021.
Coalition, CDR. "Extreme Value Modelling Of The Water Levels Of The Akosombo Dam". Afribary.com, Afribary.com, 06 Apr. 2021. Web. 15 Apr. 2021. < https://afribary.com/works/extreme-value-modelling-of-the-water-levels-of-the-akosombo-dam >.
Coalition, CDR. "Extreme Value Modelling Of The Water Levels Of The Akosombo Dam" Afribary.com (2021). Accessed April 15, 2021. https://afribary.com/works/extreme-value-modelling-of-the-water-levels-of-the-akosombo-dam