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Title: Performance model assessment for multi-junction concentrating photovoltaic systems.

Conference ·
OSTI ID:991836

Four approaches to modeling multi-junction concentrating photovoltaic system performance are assessed by comparing modeled performance to measured performance. Measured weather, irradiance, and system performance data were collected on two systems over a one month period. Residual analysis is used to assess the models and to identify opportunities for model improvement. Large photovoltaic systems are typically developed as projects which supply electricity to a utility and are owned by independent power producers. Obtaining financing at favorable rates and attracting investors requires confidence in the projected energy yield from the plant. In this paper, various performance models for projecting annual energy yield from Concentrating Photovoltaic (CPV) systems are assessed by comparing measured system output to model predictions based on measured weather and irradiance data. The results are statistically analyzed to identify systematic error sources.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
OSTI ID:
991836
Report Number(s):
SAND2010-2004C; TRN: US201021%%402
Resource Relation:
Conference: Proposed for presentation at the Sixth International Conference on Concentrating Photovoltaics held April 7-9, 2010 in Freiberg, Germany.
Country of Publication:
United States
Language:
English