Kajian Ekonomi Penambangan Andesit dengan Menggunakan Grafik Perbandingan NPV, IRR, BEP dan PBP Dalam 7 Analisis Sensitivitas di PT. Bara Hisyami Resouces Site PT. Energi Daya Wangsa, Desa Wargasetra, Kecamatan Tegal Waru, Kabupaten Karawang, Provinsi Jawa Barat

Abstract

The mining industry requires a good planning so that mining was done not to cause harm in terms of both material and time. Therefore, with careful planning and calculation - a logical calculation in terms of material, environmental, social, economic and so efforts are mining industry can work well. Andesite mining economic studies based on the technical design of the data that has been made, so that in the determination of the cost will be considered by the company. Components or factors making up the assessment event economical mining of andesite in terms of the economy such as the determination of costs - costs, revenues from the sale of products, the calculation of cash flow, discounted rate of return or internal rate of return, net present value, break-even point and a payback period of within 7 sensitivity analyzes. To evaluate the impact of the uncertainty of investment and determine the level of profitability will vary due to changes in the sensitivity parameter. The results of the sensitivity analysis will determine the parameters - parameters of investment significantly affect a project. A sensitivity analysis will provide a positive effect and in anticipation of the company to find a result that occurs from changes in the parameters - parameters selling prices and production costs to changes in production systems performance in generating profits. From the results of the economic study on mining andesite PT. Bara Hisyami PT Energy Resource site Wangsa Power, Wargasetra village, Tegal Waru subdistrict, Karawang, West Java Province with the area of mining concession covering an area of 16 hectares has a capital cost (capital cost) of Rp 32,519,828,334., - Which is filled with a capital of banks 70% and 30% of equity capital. At the rate of 12% was obtained Net Present Value (NPV) of Rp 63,318,434,020, Discounted Cash Flow Rate of Return (DCFROR) or Internal Rate of Return (IRR) obtained at 41.89% with a minimum IRR of 13.2% and a period payback or payback Period (PBP) of the calculation results obtained during the 2:15 year or 2 years and 1 month. PT. Bara Hisyami resouce site PT. Energi Daya Wangsa secure and insensitive to changes in selling prices and production costs, with selling price fell by 19% and changes in production costs rose by 51% from the original price.

 

Industri pertambangan membutuhkan suatu perencanaan yang baik agar penambangan yang dilakukan tidak menimbulkan kerugian baik dari segi materi maupun waktu. Maka dari itu, dengan adanya perencanaan yang matang dan perhitungan – perhitungan yang logis dari segi material, lingkungan, sosial, ekonomi dan sebagainya maka usaha industri pertambangan dapat berjalan dengan baik. Kajian ekonomis penambangan andesit berdasarkan dari data rancangan teknis yang telah dibuat, sehingga dalam penentuan biaya yang dikeluarkan akan sangat dipertimbangkan oleh pihak perusahaan. Komponen atau faktor penyusun kegiatan kajian ekonomis penambangan andesit dilihat dari segi ekonomi seperti penentuan biaya - biaya, pendapatan hasil penjualan produk, perhitungan cash flow, discounted rate of return atau Internal rate of return, net present value, break event point dan payback periode dalam 7 analisis sensitivitas. Dari hasil pengkajian ekonomis pada tambang andesit di PT. BHR PT EDW, Desa Wargasetra, kecamatan Tegal Waru, Kabupaten Karawang, Provinsi Jawa Barat  dengan wilayah kuasa penambangan seluas 16 Ha memiliki biaya modal (capital cost) perusahaan sebesar Rp 32.519.828.334.,- yang dipenuhi dengan modal dari bank 70% dan modal sendiri 30%. Dengan suku bunga sebesar 12% diperoleh Net Present Value (NPV) sebesar Rp 63.318.434.020, Discounted Cash Flow Rate of Return (DCFROR) atau Internal Rate of Return (IRR) didapat sebesar 41.89% dengan IRR minimum sebesar 13,2% dan periode pengembalian modal atau Payback Periode (PBP) dari hasil perhitungan didapat selama 2.15 tahun atau 2 tahun 1 bulan. PT. Bara Hisyami Resouce site PT. Energi Daya Wangsa aman dan tidak sensitif terhadap perubahan nilai harga jual dan biaya produksi, dengan harga jual turun sebesar 19% dan perubahan biaya produksi naik sebesar 51% dari harga semula.