Browsing by Author "Chovancová, Jana"

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    Assessment of economic and environmental energy performance of EU countries using CV-TOPSIS technique
    (Elsevier B.V., 2019-11-01) Vavrek, Roman; Chovancová, Jana
    Energy production is fundamental to modern lifestyles and living standards, and as the quality of life grows, so does the demand for energy. But at the same time, an increased demand for energy has many negative effects, such as climate change and global temperature rise caused by increased carbon dioxide emissions into the atmosphere. In addition, high levels of energy use results in greater depletion of fossil fuels, oil, or natural gas. To avoid these problems, many countries are closely monitoring their energy intensity and implementing the politics and tools for its improvement. This paper aims to perform a quantitative evaluation of the energy economic and environmental performance of the EU countries using the TOPSIS techniques as one of the MCDM methods to find the most desirable alternative(s) from a set of available alternatives versus the selected criteria. Based on seven indicators weighted by the Coefficient of Variance, we have comprehensively evaluated the energy economic and environmental performance of the EU countries. Among other things, we noted the strong dominance of Sweden throughout the period under review and have recorded significant improvement progress in the overall assessment of Luxembourg. One of our conclusions is that it is not possible to combine the absolute change in the CV-TOPSIS result with a change in the overall placement, which, in addition to its own progress, reflects the progress of the whole group of subjects under analysis.
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    (De)coupling Analysis with Focus on Energy Consumption in EU Countries and Its Spatial Evaluation
    (HARD, POST-OFFICE BOX, 10-718 OLSZTYN 5, POLAND, 2020-01-01) Chovancová, Jana; Vavrek, Roman
    Energy is a sector that has a direct impact on quality of life and economic growth. The production and use of energy satisfies human needs, but also gives rise to a host of adverse environmental pressures, such as greenhouse gas emissions, air and water pollution, waste generation and many other negative consequences. Our paper presents a cross-country comparison of decoupling trends in order to assess the impact of economic growth on energy consumption and production of greenhouse gas emissions. The issue of using renewable energy sources in EU countries is also taken into consideration. Decoupling analysis is performed for the time period 2008 and 2016. The results of analysis suggest that resource decoupling (energy consumption) and impact decoupling (GHG emissions) of economic growth (measured in GDP) occur in most observed partial variables, which can be considered as a positive trend. On the other hand, an increased share of renewables in energy production couples in most countries with economic growth, which indicates the positive effect referring to the third-stage of Environmental Kuznets Curve, where the demand for environmental protection tends to increase, leading to a development path characterized by both economic growth and environmental quality improvements. The results of the analysis point to spatial randomness both within the EU and at the country level.
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    Decoupling Analysis of Energy Consumption and Economic Growth of V4 Countries
    (POLITECHNIKA LUBELSKA, WYDZIAL INZYNIERII SRODOWSKA, UL NADBYSTRZYCKA 40 B, LUBLIN, 20-618, POLAND, 2019-01-01) Chovancová, Jana; Vavrek, Roman
    Energy is a sector that has a direct impact on citizens' quality of life and the economic growth of the countries. The production and use of energy satisfies human needs, but also gives rise to a host of adverse environmental pressures, such as greenhouse gas emissions, air pollution and the generation of nuclear waste. Energy use leads to noise, water pollution, and ecosystem degradation. Energy-related air pollution also has significant negative effects on human health. To avoid these problems, many countries are closely monitoring their energy intensity and implement the politics and tools to its improvement. The aim of the paper is to perform quantitative evaluation on the relationship between economic development and energy consumption based on decoupling model theory. The paper focuses on the case of V4 countries in the period of 1991-2015. Throughout the more than 20 years examined, the countries spread out into many different forms of decoupling. The results of analysis suggest that in most observed partial variables occurs the strong decoupling of economic growth and energy consumption, what can be considered as positive trend. Though decoupling elasticity convey a positive message, the V4 countries will need to accelerate their implementation of new policies, while restructuring the ways how they meet their demand for energy.
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    Využitie základných fondov
    (1983-01-01) Chovancová, Jana