scholarly journals Economic Evaluation of ESS in Urban Railway Substation for Peak Load Shaving Based on Net Present Value

2017 ◽  
Vol 12 (2) ◽  
pp. 981-987 ◽  
Author(s):  
Jong-young Park ◽  
Jae-Haeng Heo ◽  
Seungkwon Shin ◽  
Hyungchul Kim
2013 ◽  
Vol 45 (4) ◽  
pp. 739-751 ◽  
Author(s):  
Dmitry Lima ◽  
Gregory Colson ◽  
Berna Karali ◽  
Bridget Guerrero ◽  
Stephen Amosson ◽  
...  

An extension of the Guerrero et al. (2010) net present value (NPV) analysis using real options analysis (ROA) is offered to improve machinery replacement decisions. Specifically, the feasibilities of replacing natural gas irrigation systems with either electric or hybrid (electric/wind) systems are evaluated. Results indicate NPV and ROA criteria can yield opposite decisions depending on the stochastic nature of the parameters, reversibility of the investment, and flexibility of investment timing. For policy, NPV results indicate that replacing natural gas with a hybrid is on the cusp of being optimal. However, ROA indicates this NPV implication may not hold.


2020 ◽  
pp. 014459872092707 ◽  
Author(s):  
Jinhyung Cho ◽  
Moon S Jeong ◽  
Young W Lee ◽  
Hye S Lee ◽  
Kun S Lee

This study proposes economic evaluation of CO2 geological storage with enhanced oil recovery. The procedures consider capital expenditures and operating costs of infrastructures and revenues from oil recovery and carbon tax credits. Extensive CO2 geological storage with enhanced oil recovery simulations was conducted to determine the most promising scenario among cases, where miscibility was controlled by the addition of liquefied petroleum gas. The addition of liquefied petroleum gas into a CO2 injection stream can accelerate reduction of oil viscosity, interfacial tension, and oil density, which cause improved displacement efficiency. The larger was the amount of liquefied petroleum gas injected, the greater was the miscibility due to minimum miscibility pressure reduction, resulting in higher oil recovery and less CO2 sequestration. Although liquefied petroleum gas addition enhances the performance of CO2 enhanced oil recovery, economic analysis should be conducted for CO2 geological storage with enhanced oil recovery due to the higher price of liquefied petroleum gas than that of CO2. Net present value decreased from liquefied petroleum gas mole fraction of 0–2% and started to increase from mole fraction 2–13% due to the miscibility effect. Then, net present value started to decrease, because the purchasing and injecting prices of the required liquefied petroleum gas exceeded that of the oil produced. Economic evaluation showed that addition of 13% liquefied petroleum gas was the most promising scenario, with a net present value of 91 MM$. Thus, we confirmed an optimum liquefied petroleum gas concentration in the CO2 geological storage with enhanced oil recovery process.


Author(s):  
Yusrianti Sabrina Kurniadianti ◽  
◽  
Adzra Zahra Ziva ◽  
Yuni Kartika Suryana ◽  
Risti Ragadhita ◽  
...  

This study aims to demonstrate computation in the techno-economic analysis of the production of aluminum oxide (Al2O3) using the precipitation method on an industrial scale. This evaluation is based on the perspective of technical and economic evaluation. Several economic evaluation parameters were analyzed to obtain potential information from the manufacture of Al2O3 nanoparticles based on gross profit margin, payback period, and cumulative net present value. The results of this study identified that the manufacture of Al2O3 nanoparticles using the precipitation method could be done industrially. Based on the engineering perspective, Al2O3 nanoparticles can be produced as much as 6.9 tons and earn an annual profit of 144,635.69 USD with a period of 20 years. To ensure that this project can be carried out, an economic evaluation is made based on estimates of ideal and non-ideal conditions, including tax increases, sales changes, raw material prices, utility prices, and labor’s salary. This study is expected to provide information for the manufacture of Al2O3 nanoparticles using the precipitation method on an industrial scale.


Author(s):  
Shibu John ◽  
Komal Dabas ◽  
Iffat Naseem

ABSTRACT Introduction Hospital projects are highly cost intensive and therefore, it takes few years to become a profit oriented entity. The success of these hospital projects can be measured through various economic evaluation methods. Economic evaluation can also be called as an effort to analyze inputs and outputs together and logically help decision makers evaluate whether a certain level of output is worth the amount of resources expended to produce it. Method of the study The present study was planned to do the economic evaluation of an Eye hospital, in Haryana state. Two parameters were considered for evaluating the project, i.e. Net Present Value (NPV) and Profitability Index (PI). The data used in the study was from 2010-2011 to 2016-2017. This includes actual and projected data. Result and conclusion A positive NPV explain the project is worthwhile and making profits, with current cost and revenue projections. PI for this center is found out to be 3.47 which also emphasize that the project is a value for money proposition. How to cite this article John S, Dabas K, Naseem I. Economic Evaluation of an Eye Hospital in Terms of Net Present Value and Profitability Index. Int J Res Foundation Hosp Healthc Adm 2014;2(1):36-40.


Author(s):  
Mohd Firdaus Mohd Ab Halim ◽  
Umar Al-Amani Azlan ◽  
M. Haniff Harun ◽  
Khalil Azha M. Annuar ◽  
S. Halma Johari ◽  
...  

In this paper, two lighting retrofit scheme is simulated to evaluate the amount of saving that the commercial building owner would benefits. Simple payback period and net present value are the method used to qualify the retrofit scheme to be profitable or otherwise. The analysis include the effect of electricity price, energy saving percentage, technology price and efficacy future values towards the economic return. The retrofit scheme presented only covers for the building that already has existing lighting equipment and comply towards the standard set by the international technical society. All variables and assumption are based on latest report by the world governing bodies and regulation.


2020 ◽  
Vol 4 (1) ◽  
pp. 68
Author(s):  
Asha E. Harman ◽  
Asep Bayu Dani Nandiyanto

Makalah ini bertujuan mengkaji kelayakan ekonomi produksi nanopartikel Fe3O4 dari skala laboratorium menjadi skala industri. Evaluasi dilakukan menggunakan 2 model studi kelayakan, yaitu: analisis teknik dan evaluasi ekonomi. Analisis teknik memberikan informasi potensi produksi berskala besar dan hasil proses ini dapat diterapkan menggunakan peralatan yang tersedia secara komersial dan murah. Evaluasi ekonomi dilakukan berdasar perbandingan grafik Cumulative Net Present Value pada keadaan ideal dan grafik pada saat dilakukan perubahan parameter (seperti perubahan nilai kurs dollar, kuantitas produk penjualan, dan besar nilai gaji karyawan). Dari hasil evaluasi, semua perubahan parameter memberikan nilai positif yang menunjukkan bahwa proyek ini layak dijalankan secara komersial dan dalam skala besar. Hal ini karena hasil evaluasi memberikan kestabilan indeks keuntungan pada beberapa perubahan nilai parameter. Studi ini menunjukkan bahwa fabrikasi Fe3O4 dapat memberikan laba yang menjanjikan di negara berkembang dan dapat menarik investor asing untuk bekerja sama dalam fabrikasi Fe3O4.This paper aims to evaluate the economic feasibility of Fe3O4 nanoparticle production from a laboratory scale to an industrial scale feasibility. The evaluation was conducted using 2 models of feasibility studies, namely: technical analysis and economic evaluation. Technical analysis provides information on the potential for large-scale production and the results of this process can be applied using commercially available and inexpensive equipment. Economic evaluation is based on a comparison of the Cumulative Net Present Value graph in an ideal condition and the graph when parameters changing are made (such as changes in the dollar exchange rate, the quantity of sales products, and the value of employee salaries). From the evaluation results, all parameter changes give a positive value indicating that the project is feasible to run commercially and on a large scale. This is because the evaluation results provide a stable index of profit for some changes in parameter values. This study shows that Fe3O4 fabrication can provide promising profits in developing countries and can attract foreign investors to work together on Fe3O4 fabrication.


2010 ◽  
Vol 1 (2) ◽  
pp. 268
Author(s):  
Aina Muška ◽  
Matīss Bičevskis

Forest road density in Latvia is insufficient, although the Joint Stock Company ‘‘Latvijas valsts meži” (“Latvian State Forestry”) performs active forest road building. The hypothesis of the research is that the resources invested in a forest road building pay off during its use. The goal of the research is to study the economic benefit from forest road building. The authors’ research showed that the total costs of forest road building and use could result in Ls 246,779 over 40 years or Ls 6,170 per year. The benefit from building a forest road could be Ls 42,661 in cash or 0.89 Ls/m3 . Thus the total net loss is Ls 204,118. The calculation of the net present value with the discount rate of 2% also showed that forest road building is not economically beneficial in the researched period.


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