NDLI: More “efficient” methods for specifying and monitoring PV system performance

Content Provider	IEEE Xplore Digital Library
Author	King, D.L.
Copyright Year	2011
Description	Author affiliation: DK Solar Works, Albuquerque, NM, USA (King, D.L.)
Abstract	Do you know anyone that has been confused when writing or reviewing proposals providing PV system energy production estimates? Or when monitoring system energy production relative to expectations? Is the rate of commercial adoption being negatively impacted by ambiguity and uncertainty in the metrics used for specifying PV system power ratings and annual energy production? Does the efficiency of communication between the PV industry and the financial community need to be improved? I suspect that the answer to these questions is an unequivocal, yes! Can anyone predict the solar resource for the coming year within 1%? The answer is an unequivocal, no! Are there alternative methods for specifying and monitoring PV system performance that are easier to understand, less ambiguous, more accurate, less costly, and more efficient? I believe the answer to this question is yes. From the distinctly different perspectives of both the PV specialist and the system financier (investor), this paper reviews efficiency, power, and energy rating metrics that have evolved in the last thirty years for specifying performance of cells, modules, arrays, and systems. Then, with PV system performance (energy production) as the specific focus, both modeling and field experience are used to describe an alternative approach intended to minimize observed difficulties in marketing PV systems. A central feature of the approach is a more universal thermodynamic definition of the word “efficiency,” based on system energy production, namely ac-energy produced divided by the solar energy incident. In addition, from the financier's perspective (performance guarantee) and from the specialist's perspective (O&M), a few methods are described for efficiently monitoring long-term system performance.
Starting Page	000219
Ending Page	000224
File Size	200609
Page Count	6
File Format	PDF
ISBN	9781424499663
ISSN	01608371
e-ISBN	9781424499656
DOI	10.1109/PVSC.2011.6185884
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Measurement System performance Monitoring Production Industries Standards Meteorology
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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