The thesis deals with the assessment of the investment project of the construction and operation of biogas plant Kralovická zemědělská, a.s. The emphasis is placed on the evaluation of the investment project by calculating the net present value and on the assessment of an optimal option for drawing subsidy for electricity generation.

The aim of this work is to detect the thermal defects of the walls on the solid-state biogas plant of Šumperk city, situated in Horní Temenice. In the first part, I give the survey of literature dealing with biogas and the conditions for its formation, storage and use. Next part is focused on basic information concerning building construction and also primarily aspects of thermal processes. The second part of this work provides description of the biogas plant analyzed. The particular accent is placed on its weaknesses in the design for the conservation of thermal energy. On the basis of IR thermography, I finally evaluate detected thermal defects of the walls.

This thesis deals with renewable energy sources with a focus on the biogas plant as a new form of diversification of farm activities. In the theses is characterized renewable energy source of energy, their development and tools for their support in the European Union and the Czech Republic. At the same time provides the legislative framework for the support of renewable energy sources. Describes the development of biogas plants in the Czech Republic, lists the various types of biogas plants, the principles of their operationn and types of purchase of electricity. The work focuses on the characterization and comparison of two technologically different biogas plants for two years, which are operated in farms. These biogass plants compares between each other by analysis of the costs and revenues related to the production of electricity. At the same time, the thesis analyzed the external and internal environment of these biogas plants

Support and investment´s subsidies of production of electricity from renewable sources after 2009 made a phenomenon from a biogas plants. This thesis specifies the most used feedstock for biogas production in the Czech Republic. Each substrate used in biogas plants, have different chemical composition, dry matter content, thus providing another volume of biogas. Specifications of elections of substrate, was made on the based on consultations with the operators of agricultural biogas plants. Stabilized anaerobic process increases the production of biogas and supports economic situation of farms.

The thesis "Economic Analysis of an Agricultural Company" aims to provide overall evaluation of the financial situation and performance of Zemědělská společnost Kosova Hora, a.s. in the years 2005 2015, applying standard methods of financial analysis. The aim was achieved by applying a ratio analysis, credibility and bankruptcy models, economic value added (EVA), analysis of operational indicators, inter-company comparisons based on selected criteria and evaluation of the project of constructing a biogas station. In all these areas the company was compared with a selection of other agricultural companies. Based on the results summarized in the concluding chapter, the analysed company scored very high both from the financial and operational perspectives.

The diploma thesis is focused on the topic of an important and working of biogas plants. Literature review is focused on working of biogas plants - their kinds, possible inputs and outputs and naturally processes. The aim of practical part is a research, which is concentrated on quantity and quality of inputs for maintain an optimal running of biogas plant, even in crisis periods (like is lack of harvest in poor year). And also it is focused on profitability poor year against average year.

The thesis deals with the construction of input cost calculations (corn silage and grass silage) for biogas stations in the agriculture firm Alfa. A partial goal is to construct an alternate pricing of those materials. On basis to the alternate pricing of the materials the thesis aims to evaluate this change in economic efficiency of biogas station. The thesis consists of the theoretical and the practical part. Literature overview in the theoretical part explains in detail company costs, cost calculation, investment decisions, financial resources, cash flows and investments´ evaluation methods. The practical part of the thesis is based on gathered data from the firm Alfa. The thesis shows in detail individual input costs that enter costs calculations of corn and grass silage. Furthermore, the thesis analyzes plant manufacturing overheads and administrative overheads. Allocation of overhead costs to individual performance is also part of the thesis. Personal suggestions of cost calculations are constructed on the basis of the partial changes in individual costs. The practical part ends with a calculation of economic efficiency of the biogas station on basis of personal suggestions. The conclusion of the thesis comments the results of the cost calculation of corn and grass silage in Alfa in the year 2014. In addition, this part evaluates and comments applied personal suggestions (1 and 2) and their influence on efficiency of biogas station.

The thesis is focused on evaluation of economic efficiency of two biogas plant stations of agricultural cooperative Mořina. Theoretical basis are divided into two parts. The first is about basic terms of biogas plant station like biomass, biogas and technology of production processes. The second part includes main thoughts of investment like what becomes before its implementation, cash flow planning and evaluation of economic efficiency based on static and dynamic methods. The practical part is focused on basic characteristics of the agricultural cooperative and its company activities where belongs operating of biogas plant stations and that is the main part of own work. This part includes information about financing methods, technology of production processes, statistic data about electrical and thermal energy, service and its financial requirements. The last part of own work includes cash flow preparing and planning of observed biogas plant stations and evaluation of its economic efficiency. The cash flow planning is based on estimated trends. There are suggestions and recommendations to improve operations based on the results and discussion in the end of the practical part. The conclusion includes the result of the thesis and general discussion about biogas plant stations.

Environmental pollution, natural resources consumption and global climate change have been threats for mankind since 21 century. In order to antedate environmental pollution in many countries of the world including The Czech Republic we use legislative tool as a process of influence of the environment EIA. Substitution of non-renewable energy sources for renewable ones may retard global climate change markedly. This thesis deals with analysis of specific biogas plants located in Moravian-Silesian region in relation to the environment and population. It means that it deals with biomass utilization as a renewable source of energy. Within EIA process, it assesses the unity rate between prediction, said in documentation, and the real state after implementation. As far as the population perspective is concerned, poeple assess great strength, weaknesses, opportunities and threats. Results of the research showed different perceptions of biogas before and after project implementation. The risk of discomfort housing (smell, increased traffic congestion, noise) threatens residents in older facilities where an EIA was not yet part of the legislation. The results also showed compliance with the information provided in the EIA documentation in relation to the population and the environment, and the state after realizing the plan of a biogas plant. The thesis brings us new information within post-project analysis, it shows us the importance of EIA process and publicity involvement into this process. Defining the specific effects of biogas plants by mutual cooperation between the investor and the public authorities can be achieved some functioning device with regard to population and environmental components.

The thesis deals with growing methods of silage corn for subsequent use in a biogas plant in order to increase the efficiency of a biogas plant. There are compared three methods of growing this crop. As a main indicator comparing the different methods of cultivation was a net profit from 1 hectare yield and the profit from green mass in tons from 1 hectare. A classic growing technology was compared with two modern technologies that take into account anti erosion techniques.