Abstract
Although the total energy production from fossil fuels in Poland has been decreasing for the past few years, still at least 80% of the total energy consumption derives from coal. To reduce this high consumption rate alternative energy sources should be developed. One of the most promising is photovoltaics. This paper presents modeling studies of large scale PV power plant design to fulfil the electricity needs of a small community located in Poland. Based on the energy demand prognosis and monthly solar radiation data PV power plant capacity and a number of modules were computed. The distance between rows of the modules was also determined to avoid the shadowing effect. System configuration and energy production simulations were carried out using DDS-Cad software. Results of energy calculations were compared with the yearly energy needs of the studied community. Reduction of greenhouse gases emission was estimated. Modeling results show that proposed 3.1 MWp photovoltaic plant can produce enough energy to fulfil the yearly energy demand of the households in the studied area. Moreover, significant reduction of CO2 emission and other gaseous pollutants were observed.
Highlights
The renewable energy sector in Poland has been rapidly growing during the last few years
This study presents modeling results of a photovoltaic plant designed to fulfil the yearly energy demand of the households in Knyszyns’ municipality, Poland
The total yearly energy production from the proposed PV system of 3 MWp size was computed as 3.1 GWh which is the amount that fulfils requirements for yearly energy demands of the study region
Summary
The renewable energy sector in Poland has been rapidly growing during the last few years. As an EU member, is forced to increase the share of renewable energy with decreasing energy production derived from coal to reduce CO2 emission [3, 4]. Small size PV systems are of high importance, especially for private house-owners, only large-scale PV power plants allow to increase significantly the total installed capacity and share of photovoltaic energy in the final energy consumption in Poland. Existing analyses of photovoltaic installations working under temperate (Polish) conditions help investors to make the right choice in the investment process Analyzing both factors which have the highest influence on PV installation performance, i.e. solar radiation data or module temperature reveal the potential of PV power plants in Poland [18,19,20]. The ecological analysis was carried out in terms of greenhouse gases emission reduction into the atmosphere
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