Assessment of Error Sources in the Modeling of POA Irradiance Under Clear-Sky Conditions: Preprint

Conference · Thu Sep 27 00:00:00 EDT 2018

OSTI ID:1475514

Xie, Yu ^[1]; Sengupta, Manajit  ^[1]

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1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)

A new physics-based model, the Fast All-sky Radiation Model for Solar applications with Narrowband Irradiances on Tilted surfaces (FARMS-NIT), accurately computes plane-of-array (POA) irradiances in both narrow- and broad wavelength bands within the solar region. The evaluation studies suggest that the new model provides increased accuracy than a model assuming isotropic diffuse solar radiation and an empirical model linking the POA irradiances with long-term surface observations at selected locations. This study anlyzes the surface observations used by FARMS-NIT and is intended to understand the error sources under clear-sky conditions as well as their impact to the performance of FARMS-NIT.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 1475514
• Report Number(s): NREL/CP-5D00-71104
• Resource Relation: Conference: Presented at the 2018 European PV Solar Energy Conference and Exhibition (EU PVSEC), 24-28 September 2018, Brussels, Belgium
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
29 ENERGY PLANNING, POLICY, AND ECONOMY
solar radiation
resource assessment
POA irradiance