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  • 1
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    Unknown
    In:  Other Sources
    Publication Date: 2011-08-18
    Description: The considered program of the U.S. Department of Energy (DOE) has the objective to provide federal support for research and development work related to photovoltaics. According to definitions of policy in 1981, a strong emphasis is to be placed on long-term, high-risk research and development that industry could not reasonably be expected to perform using their own funds. Attention is given to the program structure, the photovoltaics program management organization, the advanced research and development subprogram, the collector research and development subprogram, flat-plate collectors, concentrator collectors, and the systems research and technology subprogram.
    Keywords: ENERGY PRODUCTION AND CONVERSION
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  • 2
    Publication Date: 2011-08-18
    Description: Markets, applications, and production techniques for Siemens process-produced polycrystalline silicon are surveyed. It is noted that as of 1982 a total of six Si materials suppliers were servicing a worldwide total of over 1000 manufacturers of Si-based devices. Besides solar cells, the Si wafers are employed for thyristors, rectifiers, bipolar power transistors, and discrete components for control systems. An estimated 3890 metric tons of semiconductor-grade polycrystalline Si will be used in 1982, and 6200 metric tons by 1985. Although the amount is expected to nearly triple between 1982-89, research is being carried out on the formation of thin films and ribbons for solar cells, thereby eliminating the waste produced in slicing Czolchralski-grown crystals. The free-world Si production in 1982 is estimated to be 3050 metric tons. Various new technologies for the formation of polycrystalline Si at lower costs and with less waste are considered. New entries into the industrial Si formation field are projected to produce a 2000 metric ton excess by 1988.
    Keywords: CHEMISTRY AND MATERIALS (GENERAL)
    Type: International Journal of Solar Energy; 1; 2, 19; 1982
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  • 3
    Publication Date: 2011-08-19
    Description: During the past five years, thin-film cell technology has made remarkable progress as a potential alternative to crystalline silicon cell technology. The efficiency of a single-junction thin-film cell, which is the most promising for use in flat-plate modules, is now in the range of 11 percent with 1-sq cm cells consisting of amorphous silicon, CuInSe2 or CdTe materials. Cell efficiencies higher than 18 percent, suitable for 15 percent-efficient flat plate modules, would require a multijunction configuration such as the CdTe/CuInSe2 and tandem amorphous-silicon (a-Si) alloy cells. Assessments are presented of the technology status of thin-film-cell module research and the potential of achieving the higher efficiencies required for large-scale penetration into the photovoltaic (PV) energy market.
    Keywords: ENERGY PRODUCTION AND CONVERSION
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  • 4
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    In:  Other Sources
    Publication Date: 2011-08-18
    Description: A review of photovoltaic (PV) power technology is presented with an emphasis of PV as an economical and technically feasible alternative source of energy. The successful completion of the development and transfer of emerging low-cost technologies into a fully commercialized status are identified as the means to the realization of this option's full potential. The DOE National Photovoltaics Program, a significant sponsor of PV R&D, expects both flat-plate and concentrator collectors to meet established cost targets. Citing the DOE large flat-plate grid-connected system project of the Sacramento Municipal Utility District, current technology modules priced at near $5/Wp (1983 dollars) are steadily reducing costs. A recent DOE study suggests that PV-generated electricity produced at a 30-year levelized cost of 15 cents per kWh would represent a viable energy supply alternative for the nation.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Mechanical Engineering (ISSN 0025-6501); 105; 16-23
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  • 5
    Publication Date: 2018-06-08
    Description: This paper summarizes the development of W band amplifiers for the Local Oscillator (LO) chains for the Herschel HIFI (Heterodyne Instrument for Far Infrared) Instrument.
    Keywords: Electronics and Electrical Engineering
    Type: Fourteenth International Symposium on Space Terahertz Technology; Tucson, AZ; United States
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  • 6
    Publication Date: 2018-06-08
    Description: This paper summarizes the development of W band amplifiers for the Local Oscillator (LO) chains for the Herschel HIFI (Heterodyne Instrument for Far Infrared) Instrument.
    Keywords: Engineering (General)
    Type: 3rd ESA Workshop on Millimeter Wave Technology; Espoo; Finland
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  • 7
    Publication Date: 2018-06-08
    Keywords: Electronics and Electrical Engineering
    Type: Fourteenth International Symposium on Space Terahertz Technology; Tucson, AZ; United States
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  • 8
    Publication Date: 2018-06-08
    Keywords: Engineering (General)
    Type: 3rd ESA Workshop on Millimeter Wave Technology; Espoo; Finland
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  • 9
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    Unknown
    In:  CASI
    Publication Date: 2016-06-07
    Description: As part of the National Solar Energy program, the US Department of Energy is now engaged in the development of technically feasible, low cost candidate component and system technologies to the point where technical readiness can be demonstrated by 1982. The overall strategy is to pursue parallel options that continue to show promise of meeting the program goals, thus increasing the probability that at least one technology will be successful. Included in technology development are both flat plate solar collectors and concentrator solar collectors, as well as the balance of system components, such as structures, power conditioning, power controls, protection, and storage. Generally, these last items are common to both flat plate and concentrator systems, but otherwise there is considerable disparity in design philosophy, photovoltaic cell requirements, and possible applications between the two systems. Objectives for research activities at NASA Lewis for stand alone applications, and at Sandia Laboratories where intermediate load center applications are addressed, are highlighted as well as college projects directed by Oak Ridge National Laboratory, and international applications managed by the Solar Energy Research Institute. Joint DOD/DOE effects for military applications are also summarized.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Research Center Impact for the 80's: Proc. of a Conf. on Selected Technol. for Business and Ind.; p 133-143
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  • 10
    Publication Date: 2018-06-08
    Keywords: Instrumentation and Photography
    Type: International Society for Optical Engineering (SPIE) Conference on Astronomical Telescopes and Instrumentation; Waikoloa, HI; United States
    Format: text
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