Judul: Analysis of Projected Electricity Demand and Supply in the Nusantara Capital City
Abstrak: Pemerintah Indonesia akan memindahkan ibu kota negara dari Jakarta ke Ibu Kota Nusantara (IKN) yang berada di Provinsi Kalimantan Timur. Kebutuhan listrik IKN diproyeksikan meningkat seiring dengan penambahan jumlah penduduk dan pertumbuhan ekonomi di wilayah tersebut. Penelitian ini bertujuan untuk menghasilkan proyeksi kebutuhan dan penyediaan energi listrik tahun 2024-2060 di Ibu Kota Nusantara menggunakan skenario Energi Terbarukan dan Ramah Lingkungan serta mengidentifikasi strategi pengembangan energi terbarukan di Ibu Kota Nusantara. Penelitian ini akan menggunakan metode analisis perencanaan energi dengan software Low Emission Analysis Platform (LEAP). Hasil proyeksi menunjukkan bahwa kebutuhan energi listrik IKN secara total tumbuh rata-rata sebesar 16% per tahun selama tahun 2024-2060. Pada tahun 2045, kebutuhan listrik tersebut akan dipenuhi dari 100% pembangkit energi terbarukan, terdiri dari PLTA (1.925,49 MW), PLTS (1.492,15 MW) dan PLTB (150 MW), dengan total biaya investasi sebesar 4.471.594 ribu USD., The Indonesian government will move the country’s capital from Jakarta to the Nusantara Capital City (IKN) located in East Kalimantan Province. The electricity demand of IKN is projected to increase along with the increase in population and economic growth in the region. This research aims to produce projections of electricity demand and supply for 2024-2060 in the Nusantara Capital City using Renewable and Environmentally Friendly Energy scenarios, as well as identify renewable energy development strategies in the Nusantara Capital City. This research will use the energy planning analysis method with Low Emission Analysis Platform (LEAP) software. The projection results show that the total electricity demand of IKN grows on average by 16% per year during 2024-2060. In 2045, the electricity demand will be met from 100% renewable energy generation, consisting of hydropower (1.925,49 MW), solar power (1.492,15 MW) and wind power (150 MW), with a total investment cost of 4.471.594 thousand USD.
Keyword: strategi pengembangan, biaya investasi, energi terbarukan, kapasitas pembangkit

Judul: Cost Benefit Analysis of New Renewable Energy Provision in Ibu Kota Nusantara Projections 2024-2045
Abstrak: Pemindahan Ibu Kota Nusantara (IKN) ke Kalimantan Timur menimbulkan dampak seperti biaya relokasi dan timbulnya emisi dari pemanfaatan energi untuk memenuhi kebutuhan energi di IKN. Penggunaan Energi Baru Terbarukan (EBT) merupakan salah satu kebijakan yang dirancang untuk memenuhi kebutuhan energi di IKN yang ditujukan untuk mendukung target Net Zero Emission. Penelitian ini bertujuan untuk mengetahui proyeksi permintaan dan penyediaan energi di IKN serta melihat kelayakan penerapan kebijakan skenario energinya dengan memanfaatkan EBT. Metode yang digunakan pada penelitian ini berupa analisis kuantitatif menggunakan perangkat lunak Low Emission Analysis Platform (LEAP) dan Cost Benefit Analyisis (CBA). Berdasarkan hasil penelitian diperoleh permintaan energi untuk listrik pada skenario BAU dan NZE adalah 75,19 ribu GWh dan 71,72 ribu GWh dengan nilai paling besar diperuntukkan bagi sektor transportasi. Energi tersebut dipenuhi dari PLTS IKN dan PLTA, PLTMG Bangkanai, Senipah NGCC, dan PLTG Sambera dari rest of IKN. Diperoleh Net Benefit sebesar 7,49 juta USD atau dapat dikatakan baik dan layak untuk menerapkan kebijakan skenario pemanfaatan EBT untuk mendukung target Net Zero Emission., The move of Ibu Kota Nusantara (IKN) to East Kalimantan has had impacts such as relocation costs and the emergence of emissions from the use of energy to meet energy needs in IKN. The use of New Renewable Energy (NRE) is one of the policies designed to meet energy needs in IKN which is aimed at supporting the Net Zero Emission target. This research aims to determine the projected energy demand and supply in IKN and see the feasibility of implementing energy scenario policies by utilizing EBT. The method used in this research is quantitative analysis using Low Emission Analysis Platform (LEAP) and Cost Benefit Analysis (CBA) software. Based on the research results, it was found that energy demand for electricity in the BAU and NZE scenarios was 75.19 thousand GWh and 71.72 thousand GWh, with the largest value allocated to the transportation sector. This energy is supplied from PLTS IKN and PLTA, PLTMG Bangkanai, Senipah NGCC, and PLTG Sambera from the rest of IKN. Obtained a Net Benefit of 7.49 million USD or it could be said to be good and feasible for implementing the EBT utilization scenario policy to support the Net Zero Emission target.
Keyword: cost benefit analysis, Energi, IKN, LEAP, net zero emission

Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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