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All Journal ASEAN Journal of Systems Engineering Transmisi: Jurnal Ilmiah Teknik Elektro Teknofisika Angkasa: Jurnal Ilmiah Bidang Teknologi KARYA: Jurnal Pengabdian Kepada Masyarakat
Ahmad Agus Setiawan
Magister Teknik Sistem, Universitas Gadjah Mada Yogyakarta Jl. Teknika Utara, No.3, Barek, Daerah Istimewa Yogyakarta, 55281, Indonesia
Humanities Computer Science & IT Education Engineering Languange, Linguistic, Communication & Media Physics Public Health

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Journal : ASEAN Journal of Systems Engineering

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WIND ENERGY POTENTIAL OF GUNUNG KIDUL COASTAL AS A FUNCTION OF PROBABILITY DISTRIBUTION PH, Hendro; Setiawan, Ahmad Agus; Widyaparaga, Adhika
ASEAN Journal of Systems Engineering Vol 3, No 2 (2015): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (16.51 KB)

Abstract

Gunung Kidul coastal is an area that has varying heights up to 250 meters above sea level, and dealing directly with the Indian Ocean. Based on the location of the height of the sea surface, with Logarithmic formulation of wind speed, Gunung Kidul coastal has a varying energy class. The method used is an analytical model of constant density atmospheric, assuming that the density of the air from sea level to the top of the atmosphere has a fixed value. Furthermore, the value of wind speed is used as a probability distribution function based on the data period of 24.5 years. The results of the average value of wind energy are grouped according to energy class. On the use of the Poisson probability distribution, the class of potential good of energy is reached at a height of over 450 meters above sea level. While the use of the Normal distribution and Weibull reach potential class good at 100 meters above sea level.
TECHNO-ECONOMIC ANALYSIS OF THE POTENTIAL FOR HYBRID POWER PLANT IN GUNUNG SEWU GEOPARK, PACITAN REGENCY Prima, Putri; Setiawan, Ahmad Agus; Dewayanto, Nugroho
ASEAN Journal of Systems Engineering Vol 9, No 1 (2025): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ajse.v9i1.79689

Abstract

Gunung Sewu has been designated as a Global Geopark Area by The United Nations Educational, Scientific and Cultural Organization (UNESCO) in 2015. In the preparation of the Gunung Sewu Masterplan as a UNESCO Global Geopark (UGGp), the provision of environmentally friendly and sustainable electricity is one of the strategies to utilize the renewable energy. The application of Hybrid Power Plants (HPP) that utilize wind and solar energy in the industrial and tourism sectors can have a positive impact on regional income where economic growth is one of the strategic issues of Pacitan Regency.The average wind speed in Pacitan is 3.41 m/s and the average solar radiation reaches 5.69 kWh/m2/day so that it can be said that the potential for solar and wind energy in the Gunung Sewu Pacitan  Geopark is reliable and feasible to be used as an environmentally friendly energy source. The simulation of HPP that will be implemented at Buyutan Beach illustrates that the system could produce an output of 7,519 kWh/yr. This result is able to meet the annual demand of 4,107 kWh/yr and even exceed the annual requirement.The economic analysis of the simulated HPP system produces a negative Net Present Value (NPV). This could be due to the large value of Operational Expenditure (OpEx) and Capital Expenditure (CapEx) and the low purchase price (National Electricity Company’s feed in tariff).  However, this research also proposes a scenario so that the HPP system can still be applied by dividing the cost components contained in the budget plan into two parts. In the proposal obtained cash inflows of Rp. 8,640,834.80/year and a positive or feasible NPV.
Co-Authors Adhika Widyaparaga Ahmad Sarwadi, Ahmad Aini, Nur Diana Faroh Arif Darmawan Denis Denis Hadi Sutanto Hermawan Febriansyah Hibatullah, Ahmad Jundi Hibbatillah, Nouval Imam Kutut Suryopratomo Mahira, Syeiradiva Freya Maulana, Muhammad Raya Mohammad Kholid Ridwan Naufani, Rifda Nugroho Dewayanto, Nugroho Pahlev, Nanda Dwi PH, Hendro Prima, Putri Rahmad Purnama, Rahmad Suhanan Suhanan, Suhanan Syamsul Arifin Tarcisius Haryono, Tarcisius Yafi, Muhamad Ali