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Title: Identification of periods of clear sky irradiance in time series of GHI measurements

Abstract

In this study, we present a simple algorithm for identifying periods of time with broadband global horizontal irradiance (GHI) similar to that occurring during clear sky conditions from a time series of GHI measurements. Other available methods to identify these periods do so by identifying periods with clear sky conditions using additional measurements, such as direct or diffuse irradiance. Our algorithm compares characteristics of the time series of measured GHI with the output of a clear sky model without requiring additional measurements. We validate our algorithm using data from several locations by comparing our results with those obtained from a clear sky detection algorithm, and with satellite and ground-based sky imagery.

Authors:
 [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1239983
Alternate Identifier(s):
OSTI ID: 1360650
Report Number(s):
SAND-2015-10900J
Journal ID: ISSN 0960-1481; PII: S0960148115305358
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
Renewable Energy
Additional Journal Information:
Journal Volume: 90; Journal Issue: C; Journal ID: ISSN 0960-1481
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; solar resource; global horizontal irradiance; clear sky

Citation Formats

Reno, Matthew J., and Hansen, Clifford W.. Identification of periods of clear sky irradiance in time series of GHI measurements. United States: N. p., 2016. Web. doi:10.1016/j.renene.2015.12.031.
Reno, Matthew J., & Hansen, Clifford W.. Identification of periods of clear sky irradiance in time series of GHI measurements. United States. doi:10.1016/j.renene.2015.12.031.
Reno, Matthew J., and Hansen, Clifford W.. Mon . "Identification of periods of clear sky irradiance in time series of GHI measurements". United States. doi:10.1016/j.renene.2015.12.031. https://www.osti.gov/servlets/purl/1239983.
@article{osti_1239983,
title = {Identification of periods of clear sky irradiance in time series of GHI measurements},
author = {Reno, Matthew J. and Hansen, Clifford W.},
abstractNote = {In this study, we present a simple algorithm for identifying periods of time with broadband global horizontal irradiance (GHI) similar to that occurring during clear sky conditions from a time series of GHI measurements. Other available methods to identify these periods do so by identifying periods with clear sky conditions using additional measurements, such as direct or diffuse irradiance. Our algorithm compares characteristics of the time series of measured GHI with the output of a clear sky model without requiring additional measurements. We validate our algorithm using data from several locations by comparing our results with those obtained from a clear sky detection algorithm, and with satellite and ground-based sky imagery.},
doi = {10.1016/j.renene.2015.12.031},
journal = {Renewable Energy},
number = C,
volume = 90,
place = {United States},
year = {2016},
month = {1}
}

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