Techno-Economic Analysis and Optimization of Hybrid Renewable Energy System with Energy Storage under Two Operational Modes

Takele Ferede Agajie, Armand Fopah-Lele (), Isaac Amoussou, Ahmed Ali, Baseem Khan (), Om Prakash Mahela, Ramakrishna S. S. Nuvvula, Divine Khan Ngwashi, Emmanuel Soriano Flores and Emmanuel Tanyi
Additional contact information
Takele Ferede Agajie: Department of Electrical and Electronic Engineering, Faculty of Engineering and Technology, University of Buea, Buea P.O. Box. 63, Cameroon
Armand Fopah-Lele: Department of Mechanical and Industrial Engineering, Faculty of Engineering and Technology, University of Buea, Buea P.O. Box. 63, Cameroon
Isaac Amoussou: Department of Electrical and Electronic Engineering, Faculty of Engineering and Technology, University of Buea, Buea P.O. Box. 63, Cameroon
Ahmed Ali: Department of Electrical and Electronic Engineering Technology, Faculty of Engineering and the Built Environment, University of Johannesburg, Johannesburg P.O. Box 524, South Africa
Baseem Khan: Department of Electrical and Electronic Engineering Technology, Faculty of Engineering and the Built Environment, University of Johannesburg, Johannesburg P.O. Box 524, South Africa
Om Prakash Mahela: Department of Project Management, Universidad Internacional Iberoamericana, Campeche C.P. 24560, Mexico
Ramakrishna S. S. Nuvvula: Deparmtent of Electrical and Electronics, NMAM Institute of Technology, Nitte, Karkala 574110, India
Divine Khan Ngwashi: Department of Electrical and Electronic Engineering, Faculty of Engineering and Technology, University of Buea, Buea P.O. Box. 63, Cameroon
Emmanuel Soriano Flores: Department of Project Management, Universidad Internacional Iberoamericana, Campeche C.P. 24560, Mexico
Emmanuel Tanyi: Department of Electrical and Electronic Engineering, Faculty of Engineering and Technology, University of Buea, Buea P.O. Box. 63, Cameroon

Sustainability, 2023, vol. 15, issue 15, 1-31

Abstract: Access to cheap, clean energy has a significant impact on a country’s ability to develop sustainably. Fossil fuels have a major impact on global warming and are currently becoming less and less profitable when used to generate power. In order to replace the diesel generators that are connected to the university of Debre Markos’ electrical distribution network with hybrid renewable energy sources, this study presents optimization and techno-economic feasibility analyses of proposed hybrid renewable systems and their overall cost impact in stand-alone and grid-connected modes of operation. Metaheuristic optimization techniques such as enhanced whale optimization algorithm (EWOA), whale optimization algorithm (WOA), and African vultures’ optimization algorithm (AVOA) are used for the optimal sizing of the hybrid renewable energy sources according to financial and reliability evaluation parameters. After developing a MATLAB program to size hybrid systems, the total current cost (TCC) was calculated using the aforementioned metaheuristic optimization techniques (i.e., EWOA, WOA, and AVOA). In the grid-connected mode of operation, the TCC was 4.507 × 10 6 EUR, 4.515 × 10 6 EUR, and 4.538 × 10 6 EUR, respectively, whereas in stand-alone mode, the TCC was 4.817 × 10 6 EUR, 4.868 × 10 6 EUR, and 4.885 × 10 6 EUR, respectively. In the grid-connected mode of operation, EWOA outcomes lowered the TCC by 0.18% using WOA and 0.69% using AVOA, and by 1.05% using WOA and 1.39% using AVOA in stand-alone operational mode. In addition, when compared with different financial evaluation parameters such as net present cost (NPC) (EUR), cost of energy (COE) (EUR/kWh), and levelized cost of energy (LCOE) (EUR/kWh), and reliability parameters such as expected energy not supplied (EENS), loss of power supply probability (LPSP), reliability index (IR), loss of load probability (LOLP), and loss of load expectation (LOLE), EWOA efficiently reduced the overall current cost while fulfilling the constraints imposed by the objective function. According to the result comparison, EWOA outperformed the competition in terms of total current costs with reliability improvements.

Keywords: energy storage; hybrid system; grid-connected; metaheuristic optimization; photovoltaic; stand-alone; techno-economic (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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