Computing the Global Irradiation over the Plane of Photovoltaic Arrays: A Step-by-Step Methodology

Oswaldo A. Arraez-Cancelliere, Nicolas Munoz-Galeano and Jesus M Lopez-Lezama

A chapter in Renewable Energy - Technologies and Applications from IntechOpen

Abstract: The quality of solar resource data is critical for the economic and technical assessment of solar photovoltaic (PV) installations. Understanding uncertainty and managing weather-related risk are essential for successful planning and operating of solar electricity assets. The input information available for PV designers is usually restricted to 12 monthly mean values of global horizontal irradiation (GHI) and average temperature, which characterize solar climate of locations. However, for calculating the energy production of a photovoltaic system, the global irradiation over the plane of the PV array is necessary. For this reason, this book chapter presents a methodology to appropriately determine the global irradiation over the plane of photovoltaic arrays. The methodology describes step by step the necessary equations for processing the data. Examples with numerical results are included to better show the data processing.

Keywords: global horizontal irradiation (GHI); photovoltaic (PV); energy production; solar resource; data processing (search for similar items in EconPapers)
JEL-codes: Q20 Q40 (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:ito:pchaps:208726

DOI: 10.5772/intechopen.90827

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