This study presents a comparative analysis of energy production over the year 2015 by the grid connected experimental photovoltaic (PV) system composed by different technology modules, which operates under temperate climate meteorological conditions of Eastern Poland. Two thin film technologies have been taken into account: cadmium telluride (CdTe) and copper indium gallium diselenide (CIGS). Rated power of each system is approximately equal to 3.5 kWp. In addition, the performance of a polycrystalline silicon technology system has been analyzed in order to provide comprehensive comparison of the efficiency of thin film and crystalline technologies in the same environmental conditions. The total size of the pc-Si system is equal to 17 kWp. Adequate sensors have been installed at the location of the PV system to measure solar irradiance and temperature of the modules. In real external conditions all kinds of modules exhibit lower efficiency than the values provided by manufacturers. The study reveals that CIGS technology is characterized by the highest energy production and performance ratio. The observed temperature related losses are of the lowest degree in case of CIGS modules.
Photovoltaic systems are designed to operate for a very long time according to the modules' warranty that guarantees at least of 80% of the nominal power production after 20 years of use. In order to assure the continuous power production with a high level for a long time, thermographic analysis should be performed to detect incipient anomalies in individual modules and junction boxes. This safe, convenient and noncontact method allows carrying out the inspection for working system without any contact with live wiring and without disconnecting the PV systems. Temperature distribution of the module surface can reveal many different types of anomalies, i.e. hot spots caused by local shading, microcracking or cell breakage. This paper shows the results of the infrared thermography analysis of the operating PV systems consisting of different technological modules: polycrystalline silicon (pc-Si), copper indium gallium diselenide (CIGS) and cadmium telluride (CdTe). The average working temperature of each different kind of technological module as well as overheated areas were investigated in this study. Temperature of the MC4 connectors was also analysed.
The present work is devoted to the analysis of electric energy production in photovoltaic power plant located in eastern part of Poland and to the estimation of pollution avoided due to the use of solar radiation energy. Photovoltaic power plant consists mainly of silicon polycrystalline modules but in its experimental part thin film modules of three different technologies are also installed giving the total power of 1.4 MWp. In 2015 the PV plant produced above 1.5 MWh of electric energy. Benefits of renewable energy use result in a significant reduction of emissions that are harmful to people and other living species too.
Abstract. Detailed and reliable design of a photovoltaic (PV) power plant cannot be underestimated. In terms of energy production forecasts and legal issues concerning financing -simulation performance of the PV installation is a very important problem for both the investor and the bank. In order to simulate the performance of the PV system one has to choose proper meteorological database which would be the most reliable on the installation site. Since different meteorological databases have different measurements methods and analysis, choosing the best one is not a trivial problem. In order to find the best meteorological data source for PV simulation performance under eastern Poland conditions, PVSYST software has been used. Detailed project of an 1.39 MWp PV power plant located in Bordzilowka in the east of Poland was introduced into the software. Choosing different meteorological data bases, monthly and yearly energy production was established. The simulation results were compared with the real data obtained from the PV power plant.
Odnawialne źródła energii to szansa nie tylko na poprawę efektywności energetycznej indywidualnych odbiorców, ale również na zapewnienie bezpieczeństwa energetycznego samorządów. W 2007 roku w województwie lubelskim 5 gmin utworzyło partnerstwo samorządowe o nazwie "Dolina Zielawy". Celami partnerstwa jest współpraca w zakresie oświaty, zadań z zakresu kultury, z zakresu ochrony zdrowia, pomocy społecznej, bezpieczeństwa przeciwpożarowego i oświetlenia ulicznego. Jednym z nadrzędnych celów tego partnerstwa jest m.in. zapewnienie bezpieczeństwa energetycznego oraz poprawa efektywności energetycznej poprzez zagospodarowanie energii słonecznej. Zasoby energii słonecznej na Lubelszczyźnie charakteryzują się przede wszystkim bardzo wysokim stopniem nasłonecznienia w porównaniu do innych regionów kraju. Największy potencjał pod względem wykorzystania energii słonecznej posiada wschodni obszar województwa (w tym obszar partnerstwa). W celu zapewnienia bezpieczeństwa energetycznego gminy partnerstwa powołały spółkę Energia Dolina Zielawy sp. z o.o., która w 2014 roku zbudowała farmę fotowoltaiczną o mocy 1,4 MW w Bordziłówce w Gminie Rossosz. W pracy przedstawiono podsumowanie pracy farmy fotowoltaicznej w okresie półtorarocznym oraz efektywność energetyczną różnego rodzaju paneli fotowoltaicznych, które produkują energię na farmie fotowoltaicznej w Bordziłówce.
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