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Title:
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Analyse meetresultaten PV-woningen te Heerhugowaard: periode 1992 - 1998
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Author(s):
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Published by:
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Publication date:
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ECN
Solar Energy
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1-6-1999
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ECN report number:
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Document type:
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ECN-C--99-044
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ECN publication
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Number of pages:
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Full text:
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30
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Download PDF
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Abstract:
Of ten photovoltaic power supply systems on 10 single-family dwellings inHeerhugowaard, Netherlands, four are intensively monitored by the energy
utility ENW. The measured results of the year 1992, 1993, 1994 and a part of
1998 were analyzed by ECN by order of ENW. In this report previously reported
measured data of the first three years are summarized. The results of the
period in 1998 are presented in detail. In the period 1992-1998 parts of
strings failed. The SMA inverters, which were applied in the first few years
showed a relatively low conversion efficiency. The present inverters (Victron
and ASP) show a better conversion efficiency. The performance of the Maximum
Power Point Trackers of the Victron inverters is not optimal for low solar
radiation (up to 150-200 W/m2). The performance of the PV systems in 1998
has not improved compared to the performance in 1994. 7 refs.
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