Proposed Reference Spectral Irradiance Standards to Improve Concentrating Photovoltaic System Design and Performance Evaluation: Preprint

Research output: Contribution to conferencePaper

Abstract

This conference paper describes the American Society for Testing and Materials (ASTM), the International Electrotechnical Commission (IEC), and the International Standards Organization (ISO) standard solar terrestrial spectra (ASTM G-159, IEC-904-3, ISO 9845-1) provide standard spectra for photovoltaic performance applications. Modern terrestrial spectral radiation models and knowledge ofatmospheric physics are applied to develop suggested revisions to update the reference spectra. We use a moderately complex radiative transfer model (SMARTS2) to produce the revised spectra. SMARTS2 has been validated against the complex MODTRAN radiative transfer code and spectral measurements. The model is proposed as an adjunct standard to reproduce the reference spectra. The proposed spectrarepresent typical clear sky spectral conditions associated with sites representing reasonable photovoltaic energy production and weathering and durability climates. The proposed spectra are under consideration by ASTM.
Original languageAmerican English
Number of pages7
StatePublished - 2002
Event29th IEEE PV Specialists Conference - New Orleans, Louisiana
Duration: 20 May 200224 May 2002

Conference

Conference29th IEEE PV Specialists Conference
CityNew Orleans, Louisiana
Period20/05/0224/05/02

Bibliographical note

Prepared for the 29th IEEE PV Specialists Conference, 20-24 May 2002, New Orleans, Louisiana

NREL Publication Number

  • NREL/CP-520-31406

Keywords

  • aerosol optical depth
  • atmospheric physics
  • direct normal spectrum
  • PV
  • reference spectrum standard
  • spectral model for atmospheric transmission of sunshine (SMARTS2)
  • ultraviolet component

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