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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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    13. 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).
    14. Das, Barun K. & Hasan, Mahmudul, 2021. "Optimal sizing of a stand-alone hybrid system for electric and thermal loads using excess energy and waste heat," Energy, Elsevier, vol. 214(C).
    15. Iqbal, Rashid & Liu, Yancheng & Zeng, Yuji & Zhang, Qinjin & Zeeshan, Muhammad, 2024. "Comparative study based on techno-economics analysis of different shipboard microgrid systems comprising PV/wind/fuel cell/battery/diesel generator with two battery technologies: A step toward green m," Renewable Energy, Elsevier, vol. 221(C).
    16. 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.
    17. Wesam H. Beitelmal & Paul C. Okonkwo & Fadhil Al Housni & Wael Alruqi & Omar Alruwaythi, 2020. "Accessibility and Sustainability of Hybrid Energy Systems for a Cement Factory in Oman," Sustainability, MDPI, vol. 13(1), pages 1-17, December.
    18. 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.
    19. 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).
    20. 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.
    21. 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.
    22. Jaybee Lacea & Edward Querikiol & Evelyn Taboada, 2021. "Balancing Energy Trilemma Using Hybrid Distributed Rooftop Solar PV (DRSP)/Battery/Diesel Microgrid: A Case Study in Gilutongan Island, Cordova, Cebu, Philippines," Energies, MDPI, vol. 14(21), pages 1-32, November.
    23. Li, Chong & Zhou, Dequn & Wang, Hui & Lu, Yuzheng & Li, Dongdong, 2020. "Techno-economic performance study of stand-alone wind/diesel/battery hybrid system with different battery technologies in the cold region of China," Energy, Elsevier, vol. 192(C).
    24. 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.
    25. 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.

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