50 kWp Photovoltaic Concentrator Application Experiment, Phase I. Final report, 1 June 1978-28 February 1979
This program consists of a design study and component development for an experimental 50-kWp photovoltaic concentrator system to supply power to the San Ramon substation of the Pacific Gas and Electric Company. The photovoltaic system is optimized to produce peaking power to relieve the air conditioning load on the PG and E system during summer afternoons; and would therefore displace oil-fired power generation capacity. No electrical storage is required. The experiment would use GaAs concentrator cells with point-focus fresnel lenses operating at 400X, in independent tracking arrays of 440 cells each, generating 3.8 kWp. Fourteen arrays, each 9 feet by 33 feet, are connected electrically in series to generate the 50 kWp. The high conversion efficiency possible with GaAs concentrator cells results in a projected annual average system efficiency (AC electric power output to sunlight input) of better than 15%. The capability of GaAs cells for high temperature operation made possible the design of a total energy option, whereby thermal power from selected arrays could be used to heat and cool the control center for the installation. System design and analysis, fabrication and installation, environmental assessment, and cost projections are described in detail. (WHK)
- Research Organization:
- Varian Associates, Inc., Palo Alto, CA (USA)
- OSTI ID:
- 5754861
- Report Number(s):
- DOE/CS/05315-1; CR-79-0318
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140600* -- Solar Energy-- Photovoltaic Power Systems
20 FOSSIL-FUELED POWER PLANTS
200100 -- Fossil-Fueled Power Plants-- Power Plants & Power Generation
CALIFORNIA
CONCENTRATOR SOLAR CELLS
CONTROL SYSTEMS
COOLING SYSTEMS
COST
DESIGN
DIRECT ENERGY CONVERTERS
ELECTRIC UTILITIES
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
ENVIRONMENTAL IMPACTS
EQUIPMENT
FABRICATION
FAILURE MODE ANALYSIS
FRESNEL LENS
GALLIUM ARSENIDE SOLAR CELLS
INSTALLATION
INTERCONNECTED POWER SYSTEMS
LENSES
NORTH AMERICA
OPTIMIZATION
PEAK LOAD
PEAKING POWER PLANTS
PERFORMANCE
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHOTOVOLTAIC POWER SUPPLIES
POWER CONDITIONING CIRCUITS
POWER PLANTS
POWER RANGE 10-100 KW
POWER SUPPLIES
POWER SYSTEMS
PUBLIC UTILITIES
SAFETY
SOLAR CELLS
SOLAR EQUIPMENT
SOLAR TRACKING
SPECIFICATIONS
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
USA
WESTERN REGION
140600* -- Solar Energy-- Photovoltaic Power Systems
20 FOSSIL-FUELED POWER PLANTS
200100 -- Fossil-Fueled Power Plants-- Power Plants & Power Generation
CALIFORNIA
CONCENTRATOR SOLAR CELLS
CONTROL SYSTEMS
COOLING SYSTEMS
COST
DESIGN
DIRECT ENERGY CONVERTERS
ELECTRIC UTILITIES
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
ENVIRONMENTAL IMPACTS
EQUIPMENT
FABRICATION
FAILURE MODE ANALYSIS
FRESNEL LENS
GALLIUM ARSENIDE SOLAR CELLS
INSTALLATION
INTERCONNECTED POWER SYSTEMS
LENSES
NORTH AMERICA
OPTIMIZATION
PEAK LOAD
PEAKING POWER PLANTS
PERFORMANCE
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHOTOVOLTAIC POWER SUPPLIES
POWER CONDITIONING CIRCUITS
POWER PLANTS
POWER RANGE 10-100 KW
POWER SUPPLIES
POWER SYSTEMS
PUBLIC UTILITIES
SAFETY
SOLAR CELLS
SOLAR EQUIPMENT
SOLAR TRACKING
SPECIFICATIONS
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
USA
WESTERN REGION