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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) Semesta Teknika Journal of Electrical Technology UMY Emerging Science Journal BERDIKARI : Jurnal Inovasi dan Penerapan Ipteks Emerging Information Science and Technology
Tony K Hariadi
Universitas Muhammadiyah Yogyakarta
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Library & Information Science

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Journal : Journal of Electrical Technology UMY

 1 
Renewable Energy Investment for Middle and Upper Class Housing Sector in Indonesia: Investigating the Scope for a Change in Policy Tony K. Hariadi; Milou Derks; Agus Jamal; Slamet Riyadi
Journal of Electrical Technology UMY Vol 2, No 1 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.2129

Abstract

The household sector plays an important role in the energy demand in Indonesia. Households consume more than 50% of total energy in many major cities in Indonesia and account for 34% of the total energy demand. The main share of capital allocation and attention, however, has gone to rural electrification programs over the past years with mixed results, due to an abundance of problems during the operation phase. We propose that government attention and capital should be broadened to policy development for solar home systems for urban areas. The problems that are encountered by rural electrification projects are mainly due to a lack of resources and unclear task allocation between involved parties and difficulties of addressing problems in remote environments. These risks are insignificant in urban areas where maintenance services are available and where solar home systems can be commercially interesting for higher income consumers without the need for subsidy. By means of a cost benefit analysis, this paper shows that solar home systems can be commercially interesting for households in urban areas. Different investment scenarios were worked out with systems costing 5%, 10%, and 15% of the total average house price. The analysis indicates that the policy is feasible when solar systems are coupled to the grid but not for off-grid systems. This is because the battery leads to high investment and maintenance cost. From a government point of view, developing policy towards renewable energy usage in urban households could help to reach national  electrification and environmental targets without extra capital allocation as well as relieve pressure on the already overburdened state electricity company, the PLN. 
Current and Voltage Harmonics Analysis in Green Building Case Study in Universitas Muhammadiyah Yogyakarta Tony K. Hariadi; Agus Jamal; Nurohman Fadilah; Faaris Mujaahid
Journal of Electrical Technology UMY Vol 4, No 2 (2020): December
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.v4i2.10984

Abstract

This paper described research to investigate Total Harmonic Distortion (THD) on a supposedly green building; Admission Building in Universitas Muhammadiyah Yogyakarta. Observation was done for seven days involving peak and non-peak hours including workdays and off days. Data sampling was recorded 24 hours with one-hour interval for primary parameter data including voltage, current, power factor and frequency on each phase in three phases system. Secondary data calculated to find voltage and current THD and finally to evaluate the loss of money due to power loss as the result of harmonic and unbalance load. Investigation indicated that the building has not met the IEEE 512-2014 standard for Total Harmonic Distortion. National electricity company, PLN (Perusahaan Listrik Negara) as Government Company, has made regulation about tariff and standard. Electricity tariff in Indonesia has been divided into categories based on user, commercial, social, or housing. Based on this tariff, loss of cost was calculated. Cost due to electricity loss in the building was not high since the building has good electricity installation as green building. Total Harmonic distortion reduction was recommended using single tune order 5 filter.
Co-Authors Agus Jamal Agus Jamal Alfian Ma’arif Amelia Mutiara Ayu Ratiwi Anna NN Chamim Ayu Ratiwi, Amelia Mutiara Cahya Damarjati Faaris Mujaahid Firdaus, Ilyas Eryansyah Indira Prabasari Indira Prabasari, Indira Iswanto Suwarno Milou Derks Nafi A Utama Nafi Ananda Utama Nia Maharani Raharja Norazhar Bin Mohamed Sepet Nurohman Fadilah Ramadoni Syahputra Shomad, Muhammad Abdus Slamet Riyadi Slamet Riyadi Taufiq Hidayat Utama, Nafi Ananda Wee Eng Soon Widyasmoro, Widyasmoro Zuhri, Afrizal Zulfan Fadholi