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Lilipaly, Eka Rahmat Mahayani Anthonio Putera
Politeknik Negeri Ambon
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Journal : International Journal Multidisciplinary Science

 1 
Potential Analysis of a Hybrid Sun-Wind-Battery Power Generation for Stand Alone Street Lighting on the Merah-Putih Bridge Ambon Dharmawan, Eka Adhitya; Lilipaly, Eka Rahmat Mahayani Anthonio Putera; Tetelepta, Noce Novi
International Journal Multidisciplinary Science Vol. 5 No. 1 (2026): February: International Journal Multidisciplinary Science
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijml.v5i1.2619

Abstract

This study investigates the feasibility of a hybrid renewable energy system consisting of solar photovoltaic, wind turbine, and battery storage to supply individual street lighting on the Merah Putih Bridge, Ambon. Renewable resource assessment was conducted using measured wind data and NASA solar radiation data for the period 2018–2020. The results indicate that the study location possesses favorable renewable energy potential, with an average wind speed of approximately 5.57 m/s and solar radiation exceeding 4 kWh/m²/day throughout the year. Seasonal analysis demonstrates complementary behavior between solar and wind resources, supporting the suitability of hybrid energy implementation. The hybrid system was designed to supply a 60 W LED lamp operating for 12 hours per day, corresponding to a daily energy demand of 720 Wh. The proposed configuration includes a 200 W photovoltaic module, a 400 W wind turbine, and a 12 V 100 Ah battery. Performance analysis shows that the system can generate approximately 3150 Wh/day, ensuring reliable operation with sufficient energy reserve and more than one day of battery autonomy. Economic evaluation indicates a total investment cost of approximately 1350 USD, with a Levelized Cost of Energy of 0.13 USD/kWh and a payback period of 13.7 years under a local electricity tariff of 0.086 USD/kWh. Lifecycle cost comparison demonstrates that the hybrid system is competitive with grid extension alternatives, particularly when infrastructure costs are considered. Additionally, the system can reduce approximately 0.98 tons of CO₂ emissions annually per lighting unit. The results confirm that the proposed hybrid solar–wind–battery system is technically feasible, environmentally sustainable, and suitable for decentralized bridge lighting applications.
Micro Hydropower Potential Assessment for Sustainable Tourism Electrification: A Case Study of Taeno Waterfall, Ambon Lilipaly, Eka Rahmat Mahayani Anthonio Putera; Wattimena, Sefnath J; Sarwuna, Sefnath J Etwan; Tupamahu, Cendy S E; Nara, Obednego Dominggus; Latumaerissa, Hendrik Simon; Aprilyanto Khouw; Rumalatu, Gilbert A; Hatuwe, Azmain N
International Journal Multidisciplinary Science Vol. 5 No. 1 (2026): February: International Journal Multidisciplinary Science
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijml.v5i1.2637

Abstract

This study evaluates the technical and economic feasibility of micro hydropower development at Taeno Waterfall, Ambon, Indonesia, to support sustainable tourism electrification. Hydrological assessment was conducted using 10-year rainfall data (2014–2023) combined with the National Rural Electric Cooperative Association (NRECA) method to estimate streamflow in the absence of long-term discharge measurements. The results indicate an average annual rainfall of approximately 3619.92 mm and an estimated average discharge of 0.70 m³/s. Flow duration curve analysis produced dependable flows of Q50 = 0.63 m³/s, Q80 = 0.35 m³/s, and Q90 = 0.28 m³/s, confirming adequate water availability for year-round micro hydropower operation. Hydraulic analysis showed a gross head of 24 m with a net head of 22.44 m after accounting for friction and minor losses. Using a design discharge of 0.35 m³/s and an overall efficiency of 75%, the estimated electrical power output is approximately 58 kW, classified as micro hydropower. A crossflow turbine was identified as the most suitable technology due to its compatibility with medium-head and moderate-flow conditions, operational flexibility, and cost effectiveness. Estimated electricity demand for tourism facilities is approximately 30 kW peak load with annual consumption of 66 MWh, indicating that the proposed system can fully meet demand with surplus energy for future expansion. Economic analysis using the Indonesian electricity tariff of 0.086 USD/kWh yields an annual benefit of approximately 19,278 USD and a payback period of about 12 years. The findings demonstrate that Taeno Waterfall possesses strong potential for sustainable renewable energy implementation to support tourism development and local energy resilience.
Co-Authors Alfa Musa Imanuel Efruan Alfa Musa Imanuel Efruan Aprilyanto Khouw Arun setiawan Away, Hyzkia Berthy Pelasula Edison Effendi Edison Effendi Edison Effendy Effendy, Edison Eirene G. Fransina Eirene G. Fransina Eka Adhitya Dharmawan Eka Adhitya Dharmawan Erwin Bravor Pattikayhatu Hatuwe, Azmain N Hatuwe, Azmain Noor Ivon Telussa Ivonne Telussa Kartikasari, Pinky Karyani, M.Said Latuihamallo, Threbelin Anacovic Lawdrian Latumaerissa, Hendrik Simon Leslie S Loppies Maahury, Mirella Fonda Mahubessy, Nurul Fadhila Marasabessy, Salman Nara, Obednego Dominggus Nevada M.J. Nanulaitta Pelasula, Berthy Penaonde , Astri Riany Pormes, Ludwina Rumalatu, Gilbert A SAMUEL M. TARIBUKA Sarwuna, Sefnath J Etwan setiawan, Arun Tanasale , Matheis F. J. D. P Telussa, Ivon Tetelepta, Noce Novi Tupamahu, Cendy S E Umayyah, Nissaeryn Zahro Wattimena, Sefnath J