Photovoltaic concentrators: recent developments
Conference
·
OSTI ID:5632699
We now have performance and reliability data on several PV concentrator array fields. The 3 fields which use Fresnel lense concentrators are operating very well, with typical field operating efficiencies of 8 to 10% and no serious power degradation to report. Three achievements in the area of module research are reported. Intersol Power has developed commercial modules whose peak (28/sup 0/C cell temperature, 800 W/m/sup 2/) conversion efficiency is above 15%. Sandia has fabricated a 200X experimental module using Si cells that is likely to have a peak efficiency of 16.5% (individual lense-cell units have efficiencies between 16.5 and 17%). Lastly, we have tested Varian's passively cooled 1000X GaAs module at 17% peak efficiency. This paper also reports the results of 2 recent studies. The first is a comprehensive study of the effects of real solar spectral variations on the annual performance of 2-cell multijunction devices. The second compares the cost-effectiveness of future concentrator module technologies using Si, GaAs, and AlGaAs/Si multi-junction concentrator cells.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5632699
- Report Number(s):
- SAND-83-2219C; CONF-831028-1; ON: DE84001641
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
140600 -- Solar Energy-- Photovoltaic Power Systems
141000 -- Solar Collectors & Concentrators
CASCADE SOLAR CELLS
CONCENTRATOR SOLAR CELLS
COST
DIRECT ENERGY CONVERTERS
EFFICIENCY
EQUIPMENT
FRESNEL LENS
GALLIUM ARSENIDE SOLAR CELLS
LENSES
PARABOLIC REFLECTORS
PARABOLIC TROUGH REFLECTORS
PERFORMANCE
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR CONCENTRATORS
SOLAR EQUIPMENT
SOLAR REFLECTORS
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
140600 -- Solar Energy-- Photovoltaic Power Systems
141000 -- Solar Collectors & Concentrators
CASCADE SOLAR CELLS
CONCENTRATOR SOLAR CELLS
COST
DIRECT ENERGY CONVERTERS
EFFICIENCY
EQUIPMENT
FRESNEL LENS
GALLIUM ARSENIDE SOLAR CELLS
LENSES
PARABOLIC REFLECTORS
PARABOLIC TROUGH REFLECTORS
PERFORMANCE
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR CONCENTRATORS
SOLAR EQUIPMENT
SOLAR REFLECTORS