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Title: A semiparametric spatio-temporal model for solar irradiance data

Journal Article · · Renewable Energy
ORCiD logo [1];  [2];  [3]
  1. Univ. of California, Davis, CA (United States)
  2. Baylor Univ., Waco, TX (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Here, we evaluate semiparametric spatio-temporal models for global horizontal irradiance at high spatial and temporal resolution. These models represent the spatial domain as a lattice and are capable of predicting irradiance at lattice points, given data measured at other lattice points. Using data from a 1.2 MW PV plant located in Lanai, Hawaii, we show that a semiparametric model can be more accurate than simple interpolation between sensor locations. We investigate spatio-temporal models with separable and nonseparable covariance structures and find no evidence to support assuming a separable covariance structure. These results indicate a promising approach for modeling irradiance at high spatial resolution consistent with available ground-based measurements. Moreover, this kind of modeling may find application in design, valuation, and operation of fleets of utility-scale photovoltaic power systems.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000; 1303122
OSTI ID:
1115287
Alternate ID(s):
OSTI ID: 1396757
Report Number(s):
SAND-2013-9073J; PII: S0960148115303542
Journal Information:
Renewable Energy, Vol. 87, Issue P1; ISSN 0960-1481
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Cited By (1)