A semiparametric spatio-temporal model for solar irradiance data
- Univ. of California, Davis, CA (United States)
- Baylor Univ., Waco, TX (United States)
- 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
Web of Science
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