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Energetics in Visegrad Group
Horák, Lukáš ; Černá, Iveta (advisor) ; Čajka, Radek (referee)
Main purpose of this thesis is to find out how self sufficient concerning the energy raw materials are countries within Visegrad group. Further purpose of my thesis is to analyse total primary energy supply, the structure of energy supply in countries of Visegrad group and its developments in last 4 decades. Furher I want to reveal how the structure of total primary energy supply and structure of electricity generation reflect the disponibility of raw materials in these countries and transformation of economics in the nineties. A sub-objective of my work will examine how countries of the Visegrad Four use the potential of renewable energy sources and how they support it.
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Legislative and Economic Problems of Solar Energetics in the Czech Republic
Knězů, Kristýna ; Hadrabová, Alena (advisor) ; Dvořák, Antonín (referee)
This work discusses the development of solar energy exploitation in Czech republic and partially in Germany. It contains basic definitions of terms in the area of renewable energy sources, such as solar energy, fotovoltaic powrplants etc. In next part it describes development of solar systems in Czech republic and birth of legislation that regulates it. The main part of the work analyzes status quo of solar systems in Czech republic, especially in relation to continuous development of legislative environment. Equal attention is paid to solar energy evolution in Germany and its simmilarities with Czech environment. Based on these findings potential trends are outlined.
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Evaluation of Effectiveness Concrete Investmen Intention of Photofoltaic Power Station.
ŠVARCOVÁ, Petra
This diploma work is dealing with problems related to production of electrical energy in compliance with environmental protection and assessment of its production from non-renewable sources in reference to sources being renewable. The work puts emphasis on the importance and utilization of solar electrical energy. The sun is a source that will not get dried or mined out and will not stop shining. The goal of diploma work was to appraise the investment effectiveness with regard to a photovoltaic power station and assess the power plant influence in relation to classic sources for energy production and environmental protection. Within the diploma work, there were appraised three variants of the investment project which assumed life time longer than 20 years comprising conventional financial flows, surface size of 30 000 m2 and roughly required output of 1.5 MW. Single options were assessed upon economical evaluation regarding different ways of financing, in terms of price, output and guarantees provided by suppliers including the assessment of grant influence on the project effectiveness. Based on these data, the most suitable version for the investment project of building up the photovoltaic power plant was chosen. At the conclusion, it is possible to state that the photovoltaic power plant is very considerate towards the living environment in contrast to classical sources for electrical energy production, for example coal-fired power plants which heavily contaminate the environment, and nuclear power plants with risks of radiation escapes.
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Energy use of phytomass in the South Bohemia Region
NEJEDLÁ, Alice
This bachelor thesis focuses on energetic use of phytomass in the Southern Bohemia. There was identified real and potential production of biomass in the Czech Republic and in the Southern Bohemia. According to the information acquired from literature, internet and questionnairy research there was identified volume of use of energetic sources and biomass deliberately cultivated in Southern Bohemia for energetic use. The results of this research show that Czech Republic meets the commitment to cover 6% of energetic consumption by renewable energy source ? it even reached 8%. Southern Bohemia produces 4,5% of all renewable energy sources of the Czech republic. The research shows that there is a lack of biomass in the Czech Republic, that is why it must be produced by growing energy crops (PEP) and fast growing woods (RRD). Energy crops produces in the Czech Republic are: Sorrel Feed, Miscanthus Chinese, Knotweed, Reed Canary Grass, Hemp, Sorghum. As fast growing woods there are willows and poplars recommended. The most of the renewable energy sources in Southern Bohemia is represented by biomass and its combustion. Its potential is huge, mostly the waste of wood processing ? sawdust and wooden chips, is the most used fuel. Energetic use of biomass has a good perspective in Southern Bohemia. There is still unused waste from logging and straw in agricultural production. There is still hidden potential in growing energy crops and fast growing woods. The development is defended especially by economic reasons and state financial support.
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Production capability and growing specialities of selected energy plants
DVOŘÁK, Adam
Agriculture started the new way, instead of the food crops is icreased growing of energy crops. Thesis {\clqq}Production potencial and specificity of energy plant growing`` deals with evaluation of suitability of selected energy crops in field trials and theire needs of soil, clima and agrotechnology. The growth ability, health were evaluated during vegetation period and production potencial in harvest time in choosed group of energy crops. The thesis content also the seed quality, field germination and initial growth evaluated in conditions of anthropogenic soils.
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Strategy of ČEZ, a.s. in electricity generation from renewable sources
Stillerová, Alžběta ; Zeman, Karel (advisor) ; Zemplinerová, Alena (referee)
The subject of renewable energy is a very topical issue. Alternative energy sources are often considered as a way to act responsibly to the environment while achieving a partial energy independence. A system to support production of renewable energy through subsidized purchase price was implemented in the Czech Republic. As a result of this support, renewable energy has become to be a very profitable business, and therefore there is a significant increase in the amount of new solar and wind power plants in recent time. This situation has disadvantages: in addition to growth of electricity prices, there is a real risk that the distribution network in the Czech Republic will not be able to handle the increasing amount of electricity from solar and wind power plants, which are characterized by instability in energy supplies. The theoretical part contains a description of the legislation and the overall conditions for the production of electricity from renewable sources in the Czech Republic. It characterizes the segments of electricity production from renewable sources from theoretical and general aspects. The analytical chapters of the work are devoted to the strategy of ČEZ, a.s., in the production of renewable energy with regard to requirements of authorities, especially the state and the European Union. Then, the chapters analyze the effectiveness of renewable energy which is achieved by ČEZ, a.s. The effectiveness of these alternative sources is compared to the efficiency of traditional, non-renewable energy sources. The aim of this work is to analyze the strategy in power generation from renewable sources of ČEZ, a.s., which is the dominant producer and distributor of electricity in the Czech Republic.
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Energy policy of the EU and CR in connection to Russia
Cimbálová, Pavlína ; Abrhám, Josef (advisor) ; Vitík, Matyáš (referee)
Present energy situation of the European Union is becoming to be more problematic. At the time when worldwide reserves of primary energy sources -- oil and natural gas -- continue to decrease, most of the EU member states are getting dependent on the imports of energy from foreign sources. One of the main impulses to discussion about new Energy policy of the EU in terms of security of energy supplies was a natural gas crisis between Russia and the Ukraine from January 2009. Russia represents one of the main energy partner of the EU -- it imports majority of oil and natural gas to the european countries. However, energy dependency rate of some of the central and eastern european states on imports of energy sources from Russia arouses concerns. The solution for the European Union proposes diversification of the suppliers aimed to increase energy independence on Russia. Also alternative energy sources or rebirth of nuclear energy can lead to the one-way dependence of the EU on imports of fossil fuels from Russia.
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The prospects for wind energy in Europe
Sysel, Ctibor ; Kašpar, Václav (advisor) ; Vošta, Milan (referee)
This bachelor thesis analyzes the aspects of use of renewable energy sources, focusing on wind energy. It assesses the state of use of various alternative sources by European countries. One part of the work is focused on the evaluation of existing wind power technology possibilities and it explains the impacts of wind power plants on the environment. This work analyzes current situation of wind energy in Europe and it outlines the prospects for the future while assessing its limits.
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