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Retail electricity price analysis
Chmelař, Šimon ; Zinecker, Marek (referee) ; Radil, Lukáš (advisor)
This thesis focuses on the analysis of electricity retail prices within the Czech Republic. In recent years, spot electricity prices have become a significant topic due to their high volatility, which was caused by market liberalization, geopolitical factors, and the gradual transition to sustainable energy sources. The aim of this work is to create a computational model for estimating the composition of various types of wholesale prices from the retail prices offered by electricity suppliers. The first part of the thesis summarizes the functioning of the wholesale electricity market, its components, and the types of electricity trading. The second part of the thesis focuses on compiling calculations using MATLAB software. By analyzing wholesale prices and prices offered by a certain supplier, it determines whether the supplier has secured at least the minimum part of the estimated consumption of its customers and is thus able to fulfill its obligations.
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Efficient solid fuel boiler control by PLC
Pirochta, Josef ; Radil, Lukáš (referee) ; Bátora, Branislav (advisor)
This thesis focuses on the efficient control of a solid fuel boiler using a programmable logic controller (PLC). The objective is to develop and optimize a control system that will enable safe, reliable and efficient operation of the boiler. The thesis includes a theoretical analysis of the safety requirements, a description of the parameters of the VERNER A251 boiler and the design of the regulation using PID controllers. The output is a complex software program designed in Mosaic environment, which simulates the boiler operation in multiple scenarios and allows its adjustment and analysis. The simulations have been designed to accurately represent the various boiler states from ignition to fault conditions, providing a comprehensive view of the entire control process.
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Off-shore wind power plants and their integration into the electricity market
Souček, Tomáš ; Vasil, Tomáš (referee) ; Radil, Lukáš (advisor)
Tato diplomová práce zkoumá integraci offshore nabídkových zón do evropského trhu s elektřinou, se zaměřením na ekonomické dopady omezení kapacity na pobřežní větrné farmy a roli Transmission Access Guarantee (TAG). Práce prozkoumává strategie integrace trhu a zdůrazňuje výzvy a řešení pro integraci pobřežních větrných farem za podmínek omezení kapacity. Klíčovým zjištěním je vliv kladných Power Transfer Distribution Factors (PTDFs) v nizozemských prvcích na kapacitu přenosu, jak klesají hodnoty Remaining Available Margin (RAM). Naopak zavedení českých prvků, i při vysokých PTDF, nemělo vliv na maximální Net Pozice. To naznačuje, že český provozovatel přenosové soustavy (PPS) nemusí mít obavy z finančních důsledků kompenzací souvisejících s offshore nabídkovými zónami, zatímco TSO blíže k těmto zónám musí být ostražitější. Studie zdůrazňuje význam přesného stanovení objemu a ceny TAG, aby se předešlo potenciálnímu zneužívání a zajistila se spravedlivá kompenzace. Zdůraznuje potřebu strategického řízení sítě, aby vyvážila stabilitu sítě s finančními riziky integrace obnovitelné energie. Tento výzkum poskytuje cenné poznatky pro tvůrce legislativy, provozovatele přenosových soustav a zainteresované strany v optimalizaci integrace zdrojů obnovitelné energie do evropské sítě, přispívajíc k udržitelnější a efektivnější energetické budoucnosti.
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Opportunities for flexibility in energy communities
Kubíčková, Klára ; Paar, Martin (referee) ; Radil, Lukáš (advisor)
The thesis presents a research of the legislative setting for energy communities in the Czech Republic, current conditions and expected developments in the provision and evaluation of flexibility. The thesis also deals with the proposed changes in the tariff structure and possible approaches to accounting for energy communities. Furthermore, the possibilities of flexibility involvement in energy communities, especially from the perspective of evaluation of flexibility provision are mentioned. Based on the current legislative setting and the potential of power stations, model communities are selected for which electricity sharing according to allocation keys and payback are evaluated.
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Household consumption diagram model
Bočan, Tomáš ; Brettschneider,, Zbyněk (referee) ; Radil, Lukáš (advisor)
The thesis deals with the creation of a model of the household consumption diagram. Firstly, the thesis outlines an analysis of current approaches to creating household consumption diagrams with their evaluation. The thesis then describes the input data, the procedure for creating the model itself, and in the last section, a simulation of household consumption is performed and an evaluation of the accuracy of its prediction, based on reference data.
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Integration of Grid-Forming and Grid-Following inverters into the grid
Sýkora, Jan ; Klusáček, Jan (referee) ; Radil, Lukáš (advisor)
The thesis deals with the integration of Grid-Forming and Grid-Following generation plants into the grid. The key parts of this thesis are the assessment of the current state and development of the resource base of the Czech Republic, a critical study of the limiting share of resources lacking natural inertia for maintaining stable and safe operation of the grid and the definition of the nature of inverter resources in "Grid-Forming" and "Grid-Following" modes. The main contribution of the work is the development of models of "Grid-Forming" and "Grid-Following" inverters in order to verify the capability of operation in grid-on mode and their response to disturbances in the system.
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Thermoelectric generators and their use with renewable energy sources
Bajgl, Tomáš ; Radil, Lukáš (referee) ; Baxant, Petr (advisor)
This work revolves around the principle of thermoenergy transforming into electrical energy by using a thermoelectrical generator. It is divided into these sections – theoretical, practical and experimental measurement. In the theoretical section, each thermoelectrical phenomenon is described, the properties of various materials used for production are listed, including their electrical properties and constructions. Then the attention switches to the currently available systems. The practical section includes a design for a device, which purpose is to recharge a mobile phone by using thermoelectric generators, and that section is followed by the elaboration of the measured values.
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Support of the energy sources construction for households
Stručovský, Aleš ; Radil, Lukáš (referee) ; Bartošík, Tomáš (advisor)
This bachelor thesis deals with the comparison of energy sources used for residential construction. It focuses on photovoltaic power plants, wind power plants, hydropower plants and cogeneration units. Budget cost of energy source is limited to the amount of 550 000 CZK. Every source of energy is defined by its feature, operating principle, advantages and disadvantages. Options of selling the produced energy and its price are specified. Furthermore, the particular building licence applications (construction administration approval, generation of power questionnaire, application for connection to the distribution network, application for the contract of energy production support) including all the necessary enclosures have been analysed. Essential aspect for buying the energy source is its power and it is chosen according to the type of source. Energy source of hydropower systems is flow and gradient, in wind power systems it is wind speed, in photovoltaic power systems it is sufficient intensity of sunshine and in cogeneration units its dependance on annual heat consumption. Specific energy source available on our market is chosen for every group and the calculations of annual electricity production, period of repayment and profitability in 20-year running period are performed.
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Pilot project on flexibility management at LV level
Sýkora, Jan ; Pilař, Martin (referee) ; Radil, Lukáš (advisor)
The thesis deals with the topic of flexibility, especially on the demand side. It includes the definition of terms related to the issue, the basic principles of operation and possibilities of use. The main researched branch of the study is the usage of the flexibility potential of heat pumps. The work is based on real data from a pilot project executed in the winter of 2021/22, which examines the portfolio of households with a heat pump and observes the possibilities of using flexibility, its management and especially the impact on load change depending on the estabilished baseline.
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Alternative use of biomass
Hornoch, Radek ; Radil, Lukáš (referee) ; Bartošík, Tomáš (advisor)
This bachelor´s thesis describes the options of the processing biomass on the nobler fuels and their using. In the first part are described the sources of biomass so the option targeted grow crops or use different convenient wastes. The second part contains a description of the technology, how to revise the biomass to synthesis gas, methanol, ethanol, biodiesel and biogas. They are given yields on already mentioned high-grade fuels from individual crops and technologies. The third part deals with device where it is maybe to use nobler forms of fuels. It is going about traditional heating plant with back pressure or condensing extraction turbine, steam heating plant, a cogeneration unit with micro turbine, a cogeneration unit with combustion engine and a cogeneration unit with fuel cells. At the end of the chapter is a comparison of the different devices when using different fuels.
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