Abstract
This paper presents a new simplified method for analyzing the availability of photovoltaic potential on roofs. Photovoltaic systems on roofs are widespread as they represent a sustainable and safe investment and, therefore, a means of energy self-sufficiency. With the growth of photovoltaic systems, it is also crucial to correctly evaluate their global efficiency. Thus, this paper presents a comparison between known methods for estimating the photovoltaic potential (as physical, geographic and technical contributions) on a roof and proposes a new simplified method, that takes into account the economic potential of a building that already has installed a photovoltaic system. The measured values of generated electricity of the photovoltaic system were compared with calculated photovoltaic potential. In general, the annual physical, geographic, technical and economic potentials were 1273.7, 1253.8, 14.2 MWh, and 279.1 Wh, respectively. The analysis of all four potentials is essential for further understanding of the sustainable and safe investment in photovoltaic systems.
Highlights
Population growth and, per capita consumption are increasing worldwide in developed countries
The results show that the deviation between measured generated electricity and technical potential is 3.45%, with annual measured generated electricity of values of generated electricity and technical potential is 3.45%, with annual measured generated
The results show that the deviation between measured values of generated electricity and technical potential is 3.45%, with annual measured generated electricity
Summary
Population growth and, per capita consumption are increasing worldwide in developed countries. The solution to this problem is to integrate renewable energy in urban areas [1,2,3,4,5]. Renewable energy integration is suitable for all economies in urban areas, whether developed, emerging or underdeveloped [6]. In [17], the advantages and disadvantages of various methods for estimating rooftop suitability for PV installations are described. The analysis was carried out with the constant-value method, manual selection method and Geographic Information System (GIS)-based method [18], which are (according to [17]) the three most important methods for estimating rooftop suitability for PV installations.
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