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Science 3 August 1979:
Vol. 205. no. 4405, pp. 451 - 454
DOI: 10.1126/science.205.4405.451
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Articles

Energy Analysis of the Solar Power Satellite

R. A. Herendeen 1, T. Kary 1, and J. Rebitzer 1

1 Members of the Energy Research Group, Office of Vice Chancellor for Research, University of Illinois, Urbana 61801

The energy requirements to build and operate the proposed Solar Power Satellite are evaluated and compared with the energy it produces. Because the technology is so speculative, uncertainty is explicitly accounted for. For a proposed 10-gigawatt satellite system, the energy ratio, defined as the electrical energy produced divided by the primary nonrenewable energy required over the lifetime of the system, is of order 2, where a ratio of 1 indicates the energy breakeven point. This is significantly below the energy ratio of today's electricity technologies such as light-water nuclear or coal-fired electric plants.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Energy and the U.S. Economy: A Biophysical Perspective.
C. J. Cleveland, R. Costanza, C. A. S. Hall, and R. Kaufmann (1984)
Science 225, 890-897
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The Energy Impacts of Solar Heating.
C. Whipple (1980)
Science 208, 262-266
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Science. ISSN 0036-8075 (print), 1095-9203 (online)