Correlation of actual efficiency of photovoltaic panels with air mass

被引：8

作者：

Roumpakias, Elias ^{[1
]}

Zogou, Olympia ^{[1
]}

Stamatelos, Anastassios ^{[1
]}

机构：

[1] Univ Thessaly, Dept Mech Engn, Volos, Greece

来源：

RENEWABLE ENERGY | 2015年 / 74卷

关键词：

Photovoltaic collectors; Efficiency; Air mass; CLEARNESS INDEX; OUTDOOR PERFORMANCE; TEMPERATURE; METHODOLOGY;

D O I：

10.1016/j.renene.2014.07.051

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Photovoltaic installations are already producing more than 5% of electricity in several European countries. Monitoring of photovoltaic parks produces a huge amount of data that are employed in checking the real-world efficiency of photovoltaic panels in a variety of locations, for different atmospheric and environmental conditions. The aim of this paper is to present real-world efficiency data for photovoltaic panels and photovoltaic parks, as function of air mass and environmental conditions. The PV efficiency deteriorates quickly when the solar altitude is less than 45 degrees and the solar insolation drops below 200 W/m(2). This affects the accuracy of prediction of overall efficiency of PV parks and deserves more attention and study. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：70 / 77

页数：8

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