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A performance and economic analysis of distributed power electronics in photovoltaic systems

Author: Chris Deline; National Renewable Energy Laboratory (U.S.)
Publisher: Golden, Colo. : National Renewable Energy Laboratory, [2011]
Series: NREL/TP, 5200-50003.
Edition/Format:   eBook : Document : National government publication : English
Summary:
Distributed electronics like micro-inverters and DC-DC converters can help recover mismatch and shading losses in photovoltaic (PV) systems. Under partially shaded conditions, the use of distributed electronics can recover between 15-40% of annual performance loss or more, depending on the system configuration and type of device used. Additional value-added features may also increase the benefit of using per-panel  Read more...
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Details

Material Type: Document, Government publication, National government publication, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Chris Deline; National Renewable Energy Laboratory (U.S.)
OCLC Number: 700943495
Notes: Title from title screen (viewed February 7, 2011).
"January 2011."
Description: 1 online resource (15 pages) : color illustrations.
Details: Full text available via Internet in .pdf format. Adobe Acrobat Reader required.
Series Title: NREL/TP, 5200-50003.
Responsibility: Chris Deline [and others].

Abstract:

Distributed electronics like micro-inverters and DC-DC converters can help recover mismatch and shading losses in photovoltaic (PV) systems. Under partially shaded conditions, the use of distributed electronics can recover between 15-40% of annual performance loss or more, depending on the system configuration and type of device used. Additional value-added features may also increase the benefit of using per-panel distributed electronics, including increased safety, reduced system design constraints and added monitoring and diagnostics. The economics of these devices will also become more favorable as production volume increases, and integration within the solar panel's junction box reduces part count and installation time. Some potential liabilities of per-panel devices include increased PV system cost, additional points of failure, and an insertion loss that may or may not offset performance gains under particular mismatch conditions.

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