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Journal : International Journal of Applied Power Engineering (IJAPE)

Mapping of lamtoro field in supporting the co-firing of steam power plants program Yasin Mohamad; Sardi Salim; Lanto Mohamad Kamil Amali; Abdi Gunawan Djafar
International Journal of Applied Power Engineering (IJAPE) Vol 12, No 1: March 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3641.482 KB) | DOI: 10.11591/ijape.v12.i1.pp37-48

Abstract

The policy of renewable energy in Indonesia is expressed in the government regulation no. 79 in 2014 regarding the national energy policy. In the document, renewable energy is targeted to reach 23% in 2025, and a minimum of 31% in 2050. One of the developed renewable energies is biomass which is produced by lamtoro, a plant which has been employed as a mixture in coal at Anggrek steam power plant 2×25 MW Gorontalo. As much of 1% to 5% of lamtoro is added in 1,000 ton of coal per day. The research aims to create a thematic map of the distribution of lamtoro to meet the need of co-firing at Anggrek steam power plant. The result of research shows the total area of field which has been planted with lamtoro is 69,074 ha, scattered in 14 districts. Meanwhile the largest area is Kabila Bone district (22,070 ha), and the smallest area is East Bulango district (0.228 ha). The estimated potential of lamtoro in 14 districts of Bone Bolango regency is about 916,439.86 ton/ha/year.
Method to assess the potential of photovoltaic panel based on roof design Abdi Gunawan Djafar; Yasin Mohamad
International Journal of Applied Power Engineering (IJAPE) Vol 11, No 3: September 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (748.316 KB) | DOI: 10.11591/ijape.v11.i3.pp186-198

Abstract

The photovoltaic (PV) panel makes it possible for everyone to produce electricity in their own house. However, the panel is quite a costly investment and requires much consideration to maximize its potential. The roof has variables that would impact electricity generation. The roof of housing in Indonesia was built generally in a complex shape, a combination of gable and hip roofs. This research is conducted to break down factors affecting PV productivity in regard to the roof’s aspects. A computer simulation using Ladybug plugin in Rhinoceros software has been done to achieve the target. Initially, the performance of PV panels on the gable, and hip roof, is analyzed respectively. It is found that the roof’s slope, and orientation, contribute more to the amount of electricity produced than the shape itself. These factors were used to assess the PV potential in several housing models employing simple and complex roof (more than 2 surfaces) construction in the city of Gorontalo. Eventually, a comparison between the estimation of real PV production on housing, and the estimation provided by the simulation is conducted to verify the assessment method. The difference is about 4%, as proof the simulation result is reliable.
The application potential of net zero energy building using rooftop photovoltaics case study of apartments in Gorontalo Province Djafar, Abdi Gunawan; Pratiwi, Niniek; Mohamad, Yasin; Zhai, Zhiqiang John
International Journal of Applied Power Engineering (IJAPE) Vol 14, No 3: September 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v14.i3.pp743-751

Abstract

Gorontalo Province is one of the developing regions in Indonesia. The province has been actively building apartments since 2009. The construction increases population density and energy use intensity. Consequently, demand for electricity power rises. Renewable energy such as rooftop photovoltaics has the potential as a power source for the apartments, considering the abundant solar radiation in Gorontalo which is located near the equator line. Three apartments representing three levels of the inhabitant’s income are selected as study case for the application of photovoltaic (PV) on roof to achive net zero energy building. Simulation of PV energy to power the buildings is conducted using photovoltaic geographical information system (PVGIS). By utilizing monthly electrical bill data, it is found that PV on roof is sufficient to cover the building energy demand and achieve net zero energy building (NZEB). However, there is uncertainty of the fluctuation of energy demand due to the tenant’s energy consumption behaviour. The consumption intensity is limited only by the installed power on each apartment unit. PV on roof alone is unable to provide the need if it is employed to power the unit to the maximum extent.
Co-Authors Abdi Gunawan Djafar Abdul Kadir Abdul Wahab abdusammad, Syahrir Ade Irawaty Tolago Adnan, Sri Reski Agung Anwar Akhmad Akhmad Amali, Kamil Amali, Lanto Aminuddin Aminuddin Amirudin Y. Dako Aprina, Aprina Arafat, Muhammad Yasser Arifin Matoka Astuti, Erlina Tri Azis, Abd Bagus Wijaya, Bagus Bambang Panji Asmara Bin Muhtar, Dzulkifli Budianto Budianto Cahyono, Ari Dwi Dionixius, Dionixius Djabir D, Muhammad Djalamang, Zulfikar Jakaputera Dongka, Rahmat Hidayat Eka Cahyani, Denis Elysiantobuo, Nova Ervan Harun Ervan Hasan Harun H, Haeriani Hafidzni, Nihayatul Hidayat, iksan Idham Idham Idrus, Talhah Al Ifan Wiranto Ikhsan Hidayat Ilham Amu Indah Oktaviani Iskandar Z Nasibu Iskandar Zulkarnain Nasibu Jumiati Ilham JUNUS, ALYA PRATIWI PUTRI Kamil Amali , Lanto Mohamad Kamil Amali, Lanto M. Karim, Aco Komang Arya Utama L.M Kamil Amali LAHABU, FIRMANSYAH Lanto M. Kamil Amali Lanto Mohamad Kamil Amali Maulana, Muhammad Irfan Maulidaningsih, Ranti Mimiep Setyowati Madja Mirna Mirna Moh. Rafli A. Bolilio Muhammad Yunus Mutmainnah, Nur Nadifa, Ulfatun Nirmalasari Nirmalasari Nova Elysia Ntobuo Nurapiah Nurapiah, Nurapiah Ode Asri, Aristi Ayuningsi Palakua, Hendra Pratiwi, Amelya Indah Pratiwi, Niniek Qurrotul Aini R. Dako, Rahmat Dedi Rahayuningsih, Farid Tri Rahmat Deddy Rianto Dako Rahmat Dedi Rianto Dako Rianto Dako, Rahmad Dedi Ritin Uloli Ruth Debora Salmawaty Tansa Samalam, Abdul Gafar Sangkota, Megawati Sangkota, Megawaty Sapti Wahyuningsih, Sapti Saputra, Guntur Hadi Sardi Salim Setumin, Samsul Solikhudin, Ahmad Sri Ayu Ashari Sujarwadi, Sujarwadi Surayya, Surayya Surusa, Frengki Susanto, Setya Egha Syahrir Abdussamad Taufik Ismail Yusuf Taufiq Ismail Yusuf Taufiq Ismail Yusuf Tri Oktoviana, Lucky Umar A, Muhammad Wahab Musa Wahab, Abd Wahyu Saputra Wrastawa Ridwan Yahja Igirisa Yasmine, Nabila Putri Yasser , Muhammad Yuslizar E.P. Bachari Z Nasibu, Iskandar Zainudin Bonok Zhai, Zhiqiang John