Abstract
This paper describes a method for analyse the spatial distribution of solar energy potential based on calculated solar irradiation with use of GIS (Geographical Information System). Program GIS GRASS gives opportunity to create spatial distribution of solar radiation which is taking into account such important elements like: terrain, atmosphere, pollutants, water and aerosol in atmosphere, clouds. The use of GIS GRASS module – named r.sun gives opportunity to generate spatial distribution of solar radiation on Lower Silesia (south – west part of Poland). In this work the analyse of solar potential to obtain hot water in the individual household were done. This analyse was based on the amount of total solar radiation monthly sums generated by r.sun module. Spatial distribution of solar potential was used to classify the Lower Silesia region in terms of work efficiency solar installations. It is very usefully because it gives people information about the date of the return of the funds invested in the purchase of the solar collectors.
Highlights
The main goal of this study is to analyse the spatial distribution of solar radiation, which is determined by numerous elements, such as: terrain, atmosphere, pollutants, water and aerosol in atmosphere, clouds.The key problem is the solar radiation incident on a regional scale, i.e. the Lower Silesia region
This paper describes a method for analyse the spatial distribution of solar energy potential based on calculated solar irradiation with use of GIS (Geographical Information System)
Program GIS GRASS gives opportunity to create spatial distribution of solar radiation which is taking into account such important elements like: terrain, atmosphere, pollutants, water and aerosol in atmosphere, clouds
Summary
The key problem is the solar radiation incident on a regional scale, i.e. the Lower Silesia region. In such a case, the major factor modifying the distributions of the radiation is the terrain (e.g. slopes and aspects). Apart from it, the local shadowing effects of the terrain are of no less importance Another crucial element of the solar analysis is the cloud cover. As the clouds constitute a barrier for the sun radiation, the solar radiation models should include the cloud cover This problem was examined in numerous studies and some authors used data from the local ground stations to determine the range of the clouds. Such data is reliable exclusively for a region surrounding the station
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