NDLI: Measuring and modeling the effect of snow on photovoltaic system performance

Content Provider	IEEE Xplore Digital Library
Author	Powers, L. Newmiller, J. Townsend, T.
Copyright Year	2010
Description	Author affiliation: BEW Engineering, San Ramon, CA, U.S.A. (Powers, L.; Newmiller, J.; Townsend, T.)
Abstract	Today's demanding project financing climate requires developers to hone annual photovoltaic (PV) energy estimates with unprecedented accuracy — and to back the estimates with meaningful long-term performance guarantees. With some snowy locales in the U.S. and southern Canada becoming increasingly popular for MW-scale PV systems, lenders are now requiring that snow losses be estimated as part of their energy simulations. The literature is exceptionally thin on this subject - we have been unable to find even a single side by side study that directly quantifies the difference between an always-clean array versus an identical one left to naturally accumulate and shed snow [1],[2]. This paper describes the design and reports results for a side by side PV test bed installed in California near Lake Tahoe in December 2009. It has been designed to gauge the energy loss due to snow for three common tilt angles. Results from the first winter are presented, with insights for future model development and ongoing measurements.
Starting Page	000973
Ending Page	000978
File Size	956740
Page Count	6
File Format	PDF
ISBN	9781424458905
ISSN	01608371
e-ISBN	9781424458929
DOI	10.1109/PVSC.2010.5614572
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Snow Arrays Loss measurement Energy loss Sensors Uncertainty
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
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