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Techno-economic analysis of a cost-effective power generation system for off-grid island communities: A case study of Gilutongan Island, Cordova, Cebu, Philippines

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  • Lozano, Lorafe
  • Querikiol, Edward M.
  • Abundo, Michael Lochinvar S.
  • Bellotindos, Luzvisminda M.

Abstract

Off-grid, rural island communities seldom have access to electricity and for those that do, the quality and availability are unsatisfactory. Gilutongan Island is one of the many off-grid islands in the Philippines with very limited access to electricity. Residents are provided with electricity from 6:00 p.m. to 10:30 p.m. through a 194-kVA diesel generator, paying US$ 0.14 per bulb and US$ 0.16 per outlet. Payment for electricity is collected on a daily basis with collections usually amounting to US$ 74.32 per day. With consumption totalling to 276 kW for 4.5 h, this roughly translates to a cost of US$ 1.21 per kWh. Using Hybrid Optimisation Model for Electric Renewables (HOMER), this paper presents a techno-economic analysis of a proposed cost-effective power generation system for the island, aiming to provide electricity access to the residents 24 h a day with reduced energy cost. Two options are considered: diesel-solar hybrid and solar only. Considering location constraints of the island, the hybrid system proves to be more effective, reducing cost of energy by 70% to US$ 0.3556 per kWh. Determining the load profile of the island is imperative in creating the system, dictating its size and capacity, which in turn affects its sustainability.

Suggested Citation

  • Lozano, Lorafe & Querikiol, Edward M. & Abundo, Michael Lochinvar S. & Bellotindos, Luzvisminda M., 2019. "Techno-economic analysis of a cost-effective power generation system for off-grid island communities: A case study of Gilutongan Island, Cordova, Cebu, Philippines," Renewable Energy, Elsevier, vol. 140(C), pages 905-911.
    • Handle: RePEc:eee:renene:v:140:y:2019:i:c:p:905-911
    DOI: 10.1016/j.renene.2019.03.124
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    5. Lorafe Lozano & Edward M. Querikiol & Evelyn B. Taboada, 2021. "The Viability of Providing 24-Hour Electricity Access to Off-Grid Island Communities in the Philippines," Energies, MDPI, vol. 14(20), pages 1-18, October.
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    11. Castro, Michael T. & Pascasio, Jethro Daniel A. & Delina, Laurence L. & Balite, Paul Heherson M. & Ocon, Joey D., 2022. "Techno-economic and financial analyses of hybrid renewable energy system microgrids in 634 Philippine off-grid islands: Policy implications on public subsidies and private investments," Energy, Elsevier, vol. 257(C).
    12. Kumar, Pankaj & Pal, Nitai & Sharma, Himanshu, 2022. "Optimization and techno-economic analysis of a solar photo-voltaic/biomass/diesel/battery hybrid off-grid power generation system for rural remote electrification in eastern India," Energy, Elsevier, vol. 247(C).
    13. Min-Hwi Kim & Deuk-Won Kim & Dong-Won Lee, 2021. "Feasibility of Low Carbon Renewable Energy City Integrated with Hybrid Renewable Energy Systems," Energies, MDPI, vol. 14(21), pages 1-24, November.
    14. Jahangir, Mohammad Hossein & Fakouriyan, Samaneh & Vaziri Rad, Mohammad Amin & Dehghan, Hassan, 2020. "Feasibility study of on/off grid large-scale PV/WT/WEC hybrid energy system in coastal cities: A case-based research," Renewable Energy, Elsevier, vol. 162(C), pages 2075-2095.
    15. Lozano, Lorafe & Taboada, Evelyn B., 2021. "Elucidating the challenges and risks of rural island electrification from the end-users’ perspective: A case study in the Philippines," Energy Policy, Elsevier, vol. 150(C).
    16. Lemence, Allen Lemuel G. & Tamayao, Mili-Ann M., 2021. "Energy consumption profile estimation and benefits of hybrid solar energy system adoption for rural health units in the Philippines," Renewable Energy, Elsevier, vol. 178(C), pages 651-668.
    17. Isabelo Rabuya & Melissa Libres & Michael Lochinvar Abundo & Evelyn Taboada, 2021. "Moving Up the Electrification Ladder in Off-Grid Settlements with Rooftop Solar Microgrids," Energies, MDPI, vol. 14(12), pages 1-32, June.
    18. Vaziri Rad, Mohammad Amin & Kasaeian, Alibakhsh & Niu, Xiaofeng & Zhang, Kai & Mahian, Omid, 2023. "Excess electricity problem in off-grid hybrid renewable energy systems: A comprehensive review from challenges to prevalent solutions," Renewable Energy, Elsevier, vol. 212(C), pages 538-560.
    19. Jurasz, Jakub & Guezgouz, Mohammed & Campana, Pietro E. & Kies, Alexander, 2022. "On the impact of load profile data on the optimization results of off-grid energy systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 159(C).
    20. Hoseinzadeh, Siamak & Astiaso Garcia, Davide & Huang, Lizhen, 2023. "Grid-connected renewable energy systems flexibility in Norway islands’ Decarbonization," Renewable and Sustainable Energy Reviews, Elsevier, vol. 185(C).
    21. Fioriti, Davide & Pintus, Salvatore & Lutzemberger, Giovanni & Poli, Davide, 2020. "Economic multi-objective approach to design off-grid microgrids: A support for business decision making," Renewable Energy, Elsevier, vol. 159(C), pages 693-704.
    22. Henning Meschede & Paul Bertheau & Siavash Khalili & Christian Breyer, 2022. "A review of 100% renewable energy scenarios on islands," Wiley Interdisciplinary Reviews: Energy and Environment, Wiley Blackwell, vol. 11(6), November.
    23. Ruben Hidalgo-Leon & Fernando Amoroso & Javier Urquizo & Viviana Villavicencio & Miguel Torres & Pritpal Singh & Guillermo Soriano, 2022. "Feasibility Study for Off-Grid Hybrid Power Systems Considering an Energy Efficiency Initiative for an Island in Ecuador," Energies, MDPI, vol. 15(5), pages 1-25, February.
    24. Augusto Montisci & Marco Caredda, 2021. "A Static Hybrid Renewable Energy System for Off-Grid Supply," Sustainability, MDPI, vol. 13(17), pages 1-16, August.
    25. Bertheau, Paul, 2020. "Supplying not electrified islands with 100% renewable energy based micro grids: A geospatial and techno-economic analysis for the Philippines," Energy, Elsevier, vol. 202(C).

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