The article presents a comparison of costs of electricity production in a wind power plant and using photovoltaic systems. The comparative analysis also included the total costs of energy production and estimation of the return on investment time.
Słowa kluczowe: technical and economic analysis of the investment, wind power plant, photovoltaic power plant.
W artykule przedstawiono porównanie kosztów produkcji energii elektrycznej w elektrowni wiatrowej i z wykorzystaniem systemów fotowoltaicznych. Przeprowadzono analizę porównawczą odnawialnych źródeł energii elektrycznej uwzględniającą całościowe koszty produkcji energii oraz oszacowanie czas zwrotu inwestycji.
Keywords: analiza techniczno-ekonomiczna inwestycji, elektownia wiatrowa, elektrownia fotowoltaiczna.
In the last decades, there has been rapid development and use of renewable energy sources (RES) throughout the world. This began to result not only from ever more restrictive decrees requiring the reduction of environmental pollution, but mainly due to economic reasons. Renewable energy sources have almost unlimited renewable energy resources compared to fossil fuels, and that type of resources is constantly shrinking. Political events in the 1970s and the associated fuel and energy crisis caused an increase in a number of research on the use of renewable energy in the industrialized countries to obtain an alternative in the use of oil and gas. The society around the world is also aware that by using fossil fuels further to the same extent and even more, they contribute greatly to pollution of the Earth's environment, causing high emission of carbon dioxide into the atmosphere, which significantly contributes to the greenhouse effect. Overall demand for electricity in Poland and around the world increases every calendar year, thanks to the constantly growing economic development. As a result of this process, new investments are needed to maintain the country's energy demand at an appropriate level. An additional factor affecting the need for new investments in the Polish energy sector is the aging process of existing power units. Investment in renewable energy sources allows to significantly reduce expenses and time devoted to the construction of new power plants, whose main fuel is fossil fuels. Solar and wind energy have the largest share in the energy market, due to the fact that this type of energy is available in almost every corner of the globe. However, the distribution of this energy is uneven, there are places where the value of solar or wind energy is higher, and in others it is much smaller. Therefore, areas that are extremely profitable for the use of solar energy and in other places for wind energy can be dis [...]
 The Act from February 20, 2015 on renewable energy sources, as amended, Dz. U. 2018, item 9  . Boczar T ,: Wind energy, Current use possibilities. Ed. II, PAK, Warsaw 2008  Zaporowski B ,: Analysis of electricity generation costs. Energy policy. Book 1. Volume 11. 2008