The study is focusing on comparison of efficiency and ecological impacts of photovoltaic power stations depending on their locations in the Czech Republic. The report gives us an overview of photovoltaic power stations efficiency and also their environmental value by minimising CO2 emissions due to replacing conventional energy technologies. The research is based on data taken from energy audits of photovoltaic power stations in Vidov (South Bohemia), in Hodonice (South Moravia) and Lahošť (North Bohemia). The measured data of efficiency and CO2 savings are compared to forecast data from numerical weather prediction models PVSYST, PVGIS and Meteonorm. The project revealed, that photovoltaic power stations efficiency directly depends on their geographic location. Decisive factor was sunlight. Paired comparison showed, that there is a difference between photovoltaic power stations in Lahošť, Hodonice (P < 0,01) and Vidov (P < 0,05). The difference between real and expected datas from each photovoltaic systems was conclusive (p < 0,01). Significant was also factor of month (p < 0,001).

The main objective of this diploma thesis is to provide a paradigmatic view on the solar energy market within the environment of system dynamics. To reach this goal, it was necessary to create a dynamic model which will be sufficiently informative and reliable for generating the main behaviour patterns of the solar energy market. This model provides a macroscopic view on the problematic of solar energy market and therefore includes all its key components. Thesis further includes simulations of hypothetical scenarios aimed both on historical and future market development.

The aim of this master's thesis is the evaluation of a company, of which the purpose of its existence is the development and running of a photovoltaic power plant. The estimated value refers to December 31st, 2011 and is determined for the purpose of potential sale of the company. The thesis consists of theoretical part, which includes determination of basic terms and concept of the evaluation process, and the practical application of theoretical knowledge on the specific company. A brief presentation of the company is followed by the strategic analysis, which identifies the most important opportunities and threats for the company in the future. Together with a review of previous company's financial results it represents the initial point for the preparation of a financial plan. The final part of the thesis includes the evaluation of the company in two versions. The first one is based on the assumption of termination company's activity after a specific period. The second one is based on the going-concern principle. The statement about the value of the company is supplemented by the valuation of the investment project.

Renewable energy resources, especially photovoltaics, have experienced enormous boom all over the world in the past few years. It was completely the same in Czech Republic where you would not find anybody without his own opinion regarding PV business. Installation of PV power plants has become very attractive business, with very significant role in 2011 in Czech Republic. At this time, this solar boom has found its "home" in other European countries, particularly in Eastern Europe. The post of the new Eastern Europe's "powerhouse" can defend even Romania, that's the cause I have chosen this country as the subject of this thesis. The aim of this thesis is to create a business plan for PV power plant and evaluate the investment opportunity of its installation in Romania. And then by means of a sensitivity analysis find out the impact of external factors that can significantly affect the profitability of the project.

This master thesis analyses the existing methods both practically and theoretically used to detect defected surface area in solar cells. Various methods were used but by using an upgraded CMOS camera without IR filter to implement the electroluminescence method, this has proven to have a very crucial impact on the results. Given the overall results and the acquired information, a procedure with a simple parameter can be setup to carry out the measurements. In addition to this a catalog was formed showing the defects occurring in mono and polycrystalline solar cells.

Basic knowledge of photovoltaic energy transformation, devices and materials, used in photovoltaic are summarized in this master's thesis. The main goal of this thesis is orientation in the photovoltaic systems used these days and explain advantages and disadvantages of these systems during the design phase.

Presented work deals with the problem of solar glass waste recycling. In theoretical part recent EU regulation regarding waste management is presented. Different ways of PV panels recycling are explained as well as raw materials for glass production are listed. Differences between regular and solar glass is explained. In experimental part different recipes using solar glass waste and polymer binders are presented. Grindability was tested on specimen tiles. Potential of solar glass waste for manufacturing products with acoustic properties was examined.

This thesis studies the degradation of perovskite photovoltaic cells placed in atmospheres of different moisture. Samples with inverse structure: ITO/ PEDOT:PSS/ CH3NH3PbI3–XClX / PC70BM/ Ca/ Al were prepared. Electrical characteristics were measured for 2 months and similar degradation trend was observed for all the samples. Perovskite cell efficiency PCE decreased to 20 % of the initial value in t80= 46±3 days in laboratory, t80=23±1$ days in nitrogen atmosphere and t80=25,7±0,6 dní days in dry atmosphere. For the initial 27 days of the experiment, a faster degradation linked with the decrease of ISC, FF and VOC was observed. After this period, the value of FF has stabilised at 0,777±0,009 % and the value of VOC at 0,70±0,02 % of their original value (in the laboratory atmosphere). Additional fall of PCE resulted only from the decrease of ISC and was slower than in the initial period. From the results acquired, it has emerged that during the experiment, the cell encapsulation provided a sufficient barrier against outer moisture. Residual moisture present in the sctructure, was labeled as the source of the degradation. The moisture is believed to enter with the hygroscopic material PEDOT:PSS during the samples preparation procedure. During the degradation, absorption measurements of photovoltaic cells were executed. The absorption spectra didn't change. That indicates, that the decrease of ISC is not caused by the reduction of light absorption. The thesis also studied the degradation of perovskite solar cells under illumination. The samples were exposed to UV radiation for 55,5 hours. The PCE time of decrease to 20 % of the initial value was t80 = 6±2 days. It was revealed, that UV radiation significantly accelerates the decrease of ISC.

My diploma thesis is focused on processing of an energy audit of an apartment buil-ding in accordance with the Decree 480/2012 Coll. as amended. In the theoretical part I deal with the revitalization of residential and prefabricated houses both in classical ways and with modern technologies. In the practical part is processed analysis of ener-gy consumption of the apartment building in Kyjov in the initial state. In the last part is the energy audit of the apartment building, where are suggested precautions and then proposed the option for implementation.

The master thesis describes a complete design of an office building, including its technical equipment. The building's technical equipment contains HVAC, lighting, DHW and photovoltaics design, water demand. The building has two floors. It contains offices, a bistro with a lounge, a wellness area and two gyms, a children's playground and facilities. This master thesis is divided into three parts. Firstly, the thesis presents building documentation with an engineering and an accompanying report. Secondly, the thesis introduces the design of the building's technical equipment and engineering reports. Lastly, the results of a conducted experiment are presented. In this experiment, a system for the optimization of blind tilt angle is proposed.