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Open AccessArticle

How Hybridization of Energy Storage Technologies Can Provide Additional Flexibility and Competitiveness to Microgrids in the Context of Developing Countries

1
Department of Engineering, University of Perugia, via G. Duranti 1/4A 06125-Perugia, Italy
2
DIMA, University of Rome ”Sapienza”, Via Eudossiana 18, 00184 Roma, Italy
3
DESTEC, Department of Energy, Systems, Territory and Construction Engineering, University of Pisa, Largo Lucio Lazzarino, 56122 Pisa, Italy
*
Author to whom correspondence should be addressed.
Energies 2019, 12(16), 3138; https://doi.org/10.3390/en12163138
Received: 19 June 2019 / Revised: 8 August 2019 / Accepted: 9 August 2019 / Published: 15 August 2019
(This article belongs to the Special Issue Renewables-Based Microgrids)
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Abstract

Hybrid microgrids, integrating renewable energy sources and energy storage, are key in extending energy access in the remote areas of developing countries, in a sustainably way and in providing a good quality of service. Their extensive development faces a financing gap, having a high capital expenditure (CAPEX) also due to high storage costs. In the present work, a case study of a Ugandan microgrid was used to compare various battery technologies employed on their own and in a combination with a flywheel, in terms of their durability and the overall levelized cost of energy (LCOE) of the plant. Simulations show how hybrid storage configurations result in a lower LCOE for the current load profile of the microgrid and even more so for two reference residential and industrial load scenarios, suggesting this would remain the best solution even accounting for future socio-economic development. The resulting LCOE for hybrid storage configurations is lower than the average values reported for microgrid projects and represents a promising solution to speed up the development of such electrification initiatives. View Full-Text
Keywords: Rural Electrification; Microgrid; Energy storage; Technologies Hybridization; Renewable energy; sub-Saharan Africa (SSA) Rural Electrification; Microgrid; Energy storage; Technologies Hybridization; Renewable energy; sub-Saharan Africa (SSA)
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Barelli, L.; Bidini, G.; Cherubini, P.; Micangeli, A.; Pelosi, D.; Tacconelli, C. How Hybridization of Energy Storage Technologies Can Provide Additional Flexibility and Competitiveness to Microgrids in the Context of Developing Countries. Energies 2019, 12, 3138.

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