A Short Assessment of Renewable Energy for Optimal Sizing of 100% Renewable Energy Based Microgrids in Remote Islands of Developing Countries: A Case Study in Bangladesh

Homeyra Akter, Harun Or Rashid Howlader, Akito Nakadomari, Md. Rashedul Islam, Ahmed Y. Saber and Tomonobu Senjyu
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Homeyra Akter: Faculty of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami 903-0213, Japan
Harun Or Rashid Howlader: Faculty of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami 903-0213, Japan
Akito Nakadomari: Faculty of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami 903-0213, Japan
Md. Rashedul Islam: Faculty of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami 903-0213, Japan
Ahmed Y. Saber: ETAP R&D, Irvine, CA 92618, USA
Tomonobu Senjyu: Faculty of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami 903-0213, Japan

Energies, 2022, vol. 15, issue 3, 1-30

Abstract: This study explores Bangladesh’s present energy condition, renewable energy (RE) possibilities and designs an optimal 100% RE-based off-grid power system for St. Martin’s Island, Bangladesh. The optimal size of a hybrid renewable microgrid based on photovoltaic (PV) cells, a battery energy storage system (BESS), fuel cells (FC), and an electrolysis plant (EP) is proposed. Advanced direct load control (ADLC) and rooftop PV meet the energy demand at the lowest cost, and profits are maximized by selling chemical products produced by seawater electrolysis. Four cases are explored with the mixed-integer linear programming (MILP) optimization technique using MATLAB® software to demonstrate the efficacy of the suggested power system. The system cost in case 1 is lower than in the other cases, but there is no chance of profiting. Cases 2, 3, and 4 have greater installation costs, which may be repaid in 8.17, 7.72, and 8.01 years, respectively, by the profits. Though the revenue in case 3 is 6.23% higher than in case 2 and and 3.85% higher than in case 4, case 4 is considered the most reliable power system, as it can meet the energy demand at the lowest cost while increasing profits and not putting a burden on customers.

Keywords: renewable energy; sustainability; advanced direct load control; sea water electrolysis; MILP optimization technique; rooftop PV (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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