Contribution of renewable energies in the energy supply of the electricity compagny of Guinea: case of the kaleta power plant

Abstract

The contribution of renewable energies (RE) in the energy supply of the company Electricity of Guinea (EDG) is summarized today to the contribution of hydroelectricity which contributed to 72% of the total production in 2018. The purpose of this study is to analyze the contribution of renewable energy in the energy supply of EDG. Through this analysis, we show, based on the inventory of Guinea's hydropower potential, estimated at 6000 MW, the imperative need to choose the option of the development of renewable energies and the reduction of thermal production mode. This option caught our attention with regard to the multiple disadvantages of thermal generation compared to the advantages of renewable energy.

The results of our study have made it possible to understand the positive impacts, in the process of the supply of electricity to the interconnected network of Conakry, of the Kaleta power station since it was commissioned in May 2015. Kaleta hydroelectric plant has contributed to a reduction of the charges. operating cost (purchase of fuel and other consumables) of 31% or 122 billion Guinean francs equivalent to 13.224.931,76 USD. Kaleta production represents about 43% of the national production fleet. The operating situation has improved significantly with a 44% increase in electricity produced and distributed between 2015 and 2018 and a substantial reduction in cut-off times of 40%.

The contribution of Kaléta, the existence of considerable potential for hydroelectricity and solar; the preservation of the environment for present and future generations through the use of non-polluting energies, the will of the State to strive towards energy independence are all reasons which lead us to plead for an energy mix through a rational combination of hydroelectric, solar and thermal sources