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Contact Name
Syamsul Maarif
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-
Phone
+6281548695337
Journal Mail Official
jeemm.up45@gmail.com
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Jl. Proklamasi, No. 1, Babarsari, Yogyakarta, 55281
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INDONESIA
Jurnal Engine: Energi, Manufaktur, dan Material
ISSN : 25797433     EISSN : 25797433     DOI : http://dx.doi.org/10.30588/jeemm
Jurnal Engine: Energi, Manufaktur, dan Material is registered with ISSN 2579-7433 (online) on The Indonesian Institute of Sciences (LIPI). This journal is under publishment of the Mechanical Engineering Department, Universitas Proklamasi 45 Yogyakarta. It is a scientific journal focusing on Energy, Manufacturing, Material, Mechanical, and Software Simulation. It provides a publishing platform for scientists and academicians to share, publish, and discuss all aspects of the latest outstanding development in the field of Mechanical Engineering.
Articles 11 Documents
Search results for , issue "Vol. 10 No. 1 (2026)" : 11 Documents clear
Planning Analysis and Efficiency Comparison of On-Grid, Off-Grid, and Hybrid Grid-Tied Rooftop Solar Power Systems for the Development of the Control Building of Perum Jasa Tirta 1/3, WS Brantas Division Nindia Nova Novena; Royb Fatkhur Rizal
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 10 No. 1 (2026)
Publisher : Universitas Proklamasi 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v10i1.2676

Abstract

Perum Jasa Tirta I, WS Brantas Division in the Tulungagung working area, experiences unreliable electricity supply due to frequent outages, requiring an alternative solution through a rooftop photovoltaic (PV) system. This study aims to design and evaluate the performance and techno-economic feasibility of three configurations: On-Grid, Off-Grid, and Hybrid Grid-Tied systems. Based on the energy consumption analysis, the total demand is 233.5 kWh/day or 85,192.10 kWh/year. By considering system losses of 25% and an Equivalent Sun Hours (ESH) value of 4.5 hours/day, the required PV capacity is 69.18 kW, using 93 modules of 750 Wp. Simulation results using Homer Pro show that the On-Grid system generates 166,208 kWh/year, the off-grid system produces 123,361 kWh/year, and the hybrid grid-tied system generates 140,699 kWh/year. All systems are capable of meeting the load demand, with different levels of energy surplus. From a techno-economic perspective, the off-grid system provides the highest return with an NPV of IDR 11.2 billion and an IRR of 128%, but it is relatively overdesigned and highly dependent on batteries. The on-grid system offers lower investment costs but depends on the utility grid. Meanwhile, the hybrid system shows balanced performance and is considered the optimal solution.

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