scholarly journals Technical and economic analysis of grid-connected PV/Wind energy stations in the Republic of Serbia under varying climatic conditions

2016 ◽  
Vol 44 (1) ◽  
pp. 71-82 ◽  
Author(s):  
Vukman V. Bakić ◽  
Milada L. Pezo ◽  
Saša M. Stojković
Keyword(s):  
Economic Analysis ◽  
Wind Energy ◽  
Climatic Conditions ◽  
Technical And Economic Analysis ◽  
The Republic

scholarly journals Technical and Economic Analysis of Modernization of Solar Power Plant: A Case Study from the Republic of Cuba

2022 ◽  
Vol 14 (2) ◽  
pp. 822
Author(s):  
Emiliia Iakovleva ◽  
Daniel Guerra ◽  
Pavel Tcvetkov ◽  
Yaroslav Shklyarskiy
Keyword(s):  
Power Plant ◽  
Economic Analysis ◽  
Power Plants ◽  
Solar Power ◽  
Climatic Conditions ◽  
Solar Power Plant ◽  
Solar Module ◽  
Technical And Economic Analysis ◽  
Solar Power Plants ◽  
The Republic

The problem of increasing the efficiency of existing power plants is relevant for many countries. Solar power plants built at the end of the 20th century require, as their shelf lives have now expired, not only the replacement of the solar modules, but also the modernization of their component composition. This is due to the requirements to improve the efficiency of power plants to ensure the expansion of renewable energy technologies. This article presents a technical and economic analysis of the choice of solar power plant modernization method, which consists of (1) a method for calculating the amount of power generation; (2) the modeling of solar power plants under specific climatic conditions; (3) the analysis of electricity generation using different types of PV modules and solar radiation trapping technologies in Matlab/Simulink; and (4) the technical and economic analysis of a 2.5 MW solar power plant in the Republic of Cuba (in operation since 2015), for which four different modernization options were considered. All the scenarios differ in the depth of modernization; the results of the analysis were compared with the existing plant. The results of the study showed that the different modernization scenarios respond differently to changes in the inputted technical and economic parameters (cost per kWh, inflation rate, losses, and power plant efficiency). The maximum NPV deviations among the considered scenarios are: a 1% increase in inflation reduces NPV by 2%; a decrease in losses from 20% to 10% increases the NPV by 2.5%; a change in cost from EUR 0.05 to EUR 0.1 increases the NPV by more than 3.5 times. The dependence of the economic results was also tested as a function of three factors: solar module efficiency, inflation, and the price per 1 kWh. It was found that the greatest influence on the NPV of the proposed model is the price per 1 kWh. Based on this analysis, an algorithm was developed to choose the most effective scenario for the conditions of the Republic of Cuba for the modernization of the existing power plants.

scholarly journals Techno-economic analysis of the wind park Bogdanci in the Republic of Macedonia

2018 ◽  
Vol 22 (Suppl. 5) ◽  
pp. 1449-1458
Author(s):  
Vladimir Mijakovski ◽  
Monika Lutovska ◽  
Zoran Trajkovski
Keyword(s):  
Renewable Energy ◽  
Economic Analysis ◽  
Wind Energy ◽  
Power Plants ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Electricity Production ◽  
The Future ◽  
Wind Park ◽  
The Republic

Wind energy as a renewable energy source with the highest growth rate in the last two decades, is considered as a very important source of electricity for the future. The forecasts for development of wind energy are highly optimistic and state that this type of energy will be really important in the future. Following recent data and analysis from certain studies, the share of wind energy in the global world electricity generation in 2020 is estimated to reach 12%. In the same context, and in order to reduce high dependence on fossil fuels, Macedonian government took some steps to introduce and enforce utilization of renewable energy sources. First wind park with capacity of 36.8 MW, installed and operated by the state-owned electricity producing company (JSC Macedonian Power Plants - ELEM), started with operation in April 2014, on a location near Bogdanci. The techno-economic analysis regarding its performance in terms of investment costs, operation and maintenance costs, electricity production and return on investment period, considering valid feed-in tariffs for wind energy production in the country is also presented in the article.

scholarly journals Technical and economic analysis of hybrid solar/wind energy source for the site of Tlemcen-Algeria

2017 ◽  
Vol 119 ◽  
pp. 29-37
Author(s):  
Asma Chadel ◽  
Meriem Chadel ◽  
Michel Aillerie ◽  
Boumediene Benyoucef
Keyword(s):  
Energy Source ◽  
Solar Wind ◽  
Economic Analysis ◽  
Wind Energy ◽  
Technical And Economic Analysis ◽  
Solar Wind Energy

Technical and economic analysis of wind energy potential in Uzbekistan

2019 ◽  
Vol 223 ◽  
pp. 801-814 ◽  
Author(s):  
Arian Bahrami ◽  
Amir Teimourian ◽  
Chiemeka Onyeka Okoye ◽  
Hamidreza Shiri
Keyword(s):  
Economic Analysis ◽  
Wind Energy ◽  
Energy Potential ◽  
Technical And Economic Analysis ◽  
Wind Energy Potential

Peculiarities of the course of the postpartum period in domestic reindeer females, its morphophysiology and behavioral reactions in the North-East of Russia (Republic of Sakha)

2020 ◽  
pp. 99-105
Author(s):  
V. Fedorov ◽  
E. Sleptsov ◽  
K. Plemyashov
Keyword(s):  
Postpartum Period ◽  
Reproductive Function ◽  
Complex Problem ◽  
Climatic Conditions ◽  
Taiga Zone ◽  
Behavioral Reactions ◽  
North East ◽  
The North ◽  
The Republic ◽  
Mountain Taiga

A growth in the number of deer and an increase in their productivity are closely related to the solution of the complex problem of reproduction and rational use of deer females. Significant damage to reindeer husbandry is caused by the barrenness of northern domestic deer, the level of which has been quite high in recent years. So, in the Republic of Sakha, on 01.01.2020, the number of domesticated reindeer was 152,068, of which female deer and heifers — 71,818, offspring per 100 females — 59, business yield amounted to 52 fawns per 100 females. The causes of infertility are very diverse, as the natural and climatic conditions of the breeding zones have a significant influence on the reproductive function of reindeer. In Yakutia, the main population of northern domestic deer is bred in mountain taiga and tundra natural-climatic zones, so there are about 55 thousand deer in the mountain taiga zone and more than 65 thousand deer in the tundra zone. In this regard, the study of the peculiarities of the postpartum period course in domestic reindeer females, its morphophysiology, and behavioral reactions depending on the natural and climatic conditions of breeding is of great importance.

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