Authors:
Dzidula Kodzovi Afodanyi; Koffi Sagna, Hassime Guengane, Yendoubé Lare Pages: 1 - 11 Abstract: The potential of concentrated solar power plants technology (CSP) in Togo is evaluated through the simulation of a plant prototype with a capacity of 50 MW in the climate of Dapaong (Togo. The simulated prototype is the Andasol 1 plant in operation in Aldeire Granada (Spain). Such an installation which produces a net electrical energy of 139 348 MWhel at the output of the system in Spain can produce a net electrical energy of 107 525 MWhel in Togo. For this purpose, three types of technologies most used by stakeholders of the domain, namely: Solar tower, Fresnel mirror and Parabolic trough sensors are presented and an analysis of their economic feasibility has been carried out. On the basis of the analyzed solar irradiation data, the solar tower power plant can produce a net electrical energy of 113 915 MWhel, a power plant using Fresnel mirrors can produce a net energy of 121 054 MWhel against 107 525 MWhel for the parabolic trough technology and this for the same solar field surfaces. A techno-economic analysis places the solar power plant based on FRESNEL mirror ahead of other technologies. The technologies used are equipped with storage allowing production even at night when there is no sun. It was therefore found that Togo has an average potential for the production of electricity from the CSPs, especially in the northern region of the country. PubDate: 2023-03-07 DOI: 10.12691/rse-11-1-1 Issue No:Vol. 11, No. 1 (2023)
Authors:
Shree Om Bade; Olusegun Tomomewo, Ajan Meenakshisundaram Pages: 12 - 20 Abstract: This study focuses on the control strategy for active power management in utility-scale co-located hybrid power plants (HPPs) comprising wind, solar, and battery storage system. With the increasing importance of environmental impacts and incentives for renewable energy, hybrid power plants have become an attractive option for plant developers. However, there is a lack of research on the control strategies and framework of these HPPs, particularly at the utility-scale when multiple sub-technologies are involved. The proposed control strategy incorporates a supervisory control framework with a focus on establishing oversight of active power among hybrid power plants and enhanced interaction with different technologies. Using MATLAB simulations and a dynamic model, the performance of the suggested control is tested under different operational and weather conditions. The proposed control strategy for active power management can contribute to bridging the gap in knowledge and improving the controllability and efficiency of utility-scale co-located HPPs. PubDate: 2023 -07-10 DOI: 10.12691/rse-11-1-2 Issue No:Vol. 11, No. 1 (2023)
Authors:
Kokou Prosper Semekonawo; Bouwèreou Bignan-Kagomna, Oumarou Savadogo, Dramane Santara, Florent Xavier Nignan, Sié Kam, Joseph Dieudonné Bathiebo Pages: 21 - 30 Abstract: The rate of access to electricity in Togo is estimated at 45% in 2018 despite the enormous solar potential with approximately 3203.1 hours that the country has. In order to remedy such a situation, the country plans, as part of its energy policy, to build a 30 MWp solar power plant with energy storage in Dapaong in northern Togo. In this article we propose a pre-feasibility study for the construction of the plant by addressing the technical, financial, environmental and social aspects. The construction of such a plant would require the installation of 112,320 solar panels of 275 Wp over an area of approximately 80 Hectares. We consider within the framework of this study, an energy storage duration of 2 h or 68 MWh thanks to the use of Lithium-ion batteries. The installation of this plant should require, according to our study, an investment of 82.4 million USD (50 billion XOF) with a cost of electricity produced by the plant of 0.16 USD/kWh (98.37 XOF/ kWh). This plant should make it possible to avoid an emission of around 30,749.76 tons of CO2 equivalent per year by producing clean electricity of around 42.7 GWh per year. PubDate: 2023-10-17 DOI: 10.12691/rse-11-1-3 Issue No:Vol. 11, No. 1 (2023)
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