Performance analysis and reliability of grid-connected PV-systems in IEA countries

home > publications > papers >
Last updated: 6 July 2003

Author(s): Jahn, U.; Nasse, W.

Organization: Institut für Solarenergieforschung GmbH (ISFH), Emmerthal, Germany
Solar Engineering Decker & Mack GmbH, Hannover, Germany

Date of issue: May 2003

Details: 4 pages: graphs, tables; with references

Type: Paper IEA PVPS Task 2

Presented at: 3rd World Conference on Photovoltaic Energy Conversion, 11-18 May 2003, Osaka, Japan

Download: Open or download this paper as pdf document (496 kB)

Abstract: This paper presents operational performance results of grid-connected PV systems, as collected and elaborated for the Photovoltaic Power Systems Programme of the International Energy Agency (IEA). Performance ratios (PR) obtained from 334 PV installations in 14 different countries are compared and discussed. In Germany, there is a significant rise of PR between early installations in the nineties and new installations. For Switzerland, BIPV and other types show high PR > 0,80, but average PR values lower than expected were obtained. For Japan, lessons learnt from the current monitoring programmes are used to improve PV system performance showing constant performance at high level. As an outcome of this work, reliable and worldwide monitoring performance data and results are available for future developments of financing schemes (e.g. feed-in-tariffs) in order to stimulate the PV market.

[ Top ]

Author(s):	Jahn, U.; Nasse, W.
Organization:	Institut für Solarenergieforschung GmbH (ISFH), Emmerthal, Germany Solar Engineering Decker & Mack GmbH, Hannover, Germany
Date of issue:	May 2003
Details:	4 pages: graphs, tables; with references
Type:	Paper IEA PVPS Task 2
Presented at:	3rd World Conference on Photovoltaic Energy Conversion, 11-18 May 2003, Osaka, Japan
Download:	Open or download this paper as pdf document (496 kB)
Abstract:	This paper presents operational performance results of grid-connected PV systems, as collected and elaborated for the Photovoltaic Power Systems Programme of the International Energy Agency (IEA). Performance ratios (PR) obtained from 334 PV installations in 14 different countries are compared and discussed. In Germany, there is a significant rise of PR between early installations in the nineties and new installations. For Switzerland, BIPV and other types show high PR > 0,80, but average PR values lower than expected were obtained. For Japan, lessons learnt from the current monitoring programmes are used to improve PV system performance showing constant performance at high level. As an outcome of this work, reliable and worldwide monitoring performance data and results are available for future developments of financing schemes (e.g. feed-in-tariffs) in order to stimulate the PV market.