Performance model assessment for multi-junction concentrating photovoltaic systems.

Conference · Mon Mar 01 04:00:00 EST 2010

OSTI ID:991836

Stein, Joshua S; Riley, Daniel M; McConnell, Robert ^[1]; Sahm, Aaron ^[2]; Crawford, Clark ^[1]; King, David L; Cameron, Christopher P; Foresi, James S ^[3]

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1. Amonix, Inc., Seal Beach, CA
2. University of Nevada, Las Vegas, NV
3. Emcore, Inc., Albuquerque, NM

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
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 991836
• Report Number(s): SAND2010-2004C
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
AVAILABILITY
ELECTRICITY
ENERGY YIELD
FINANCING
PERFORMANCE
RADIANT FLUX DENSITY
SIMULATION
SOLAR ENERGY
WEATHER