Experimental energy yield in 1.5x and 2x PV concentrators with conventional modules

被引：21

作者：

Garcia, Miguel ^{[1
]}

Marroyo, Luis ^{[1
]}

Lorenzo, Eduardo ^{[2
]}

Perez, Miguel ^{[3
]}

机构：

[1] Univ Publ Navarra, Dept Ingn Elect & Informat, Pamplona 31006, Spain

[2] ETSI Telecomunicac, Inst Energia Solar, Madrid 28040, Spain

[3] Acc Solar, Navarra 31621, Spain

来源：

PROGRESS IN PHOTOVOLTAICS | 2008年 / 16卷 / 03期

关键词：

photovoltaic (PV); low concentration; standard modules; experimental; energy yield; V-trough;

D O I：

10.1002/pip.801

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Low concentration devices along with standard (one sun) modules represent an attractive option to reduce the cost per kilowatt-hour in photovoltaic installations. This paper deals with the energy gains obtained over a year by two of such devices: a 2x V-trough concentrator and a 1.5x single flat mirror structure. The experiment was mounted on a two-axis tracking system located in Arguedas (northern Spain). Due to various optical and electrical phenomena, the energy gain is notably lower than the geometrical concentration. We have conducted a theoretical analysis of these phenomena and quantified the energy loss associated with each. Daily and monthly energy gains show an influence of daylight clearness index on energy output. In view of this effect, and taking into account a possible increase in degradation of the photovoltaic modules due to high working temperatures and hot-spots, the viability of these concentration devices is far from being clear. Copyright (C) 2007 John Wiley & Sons, Ltd.

引用

页码：261 / 270

页数：10

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