The life cycle CO2 emission performance of the DOE/NASA solar power satellite system: A comparison of alternative power generation systems in Japan

Hitoshi Hayami, Masao Nakamura, Kanji Yoshioka

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Solar power generation and, in particular, space solar power generation seem to be one of the most promising electric power generation technologies for reducing emissions of global warming gases (denoted collectively as CO2 emissions below). Calculating the precise amount of net reduction in CO2 emissions of a solar power system over other alternative power systems requires careful life cycle considerations. For example, emissions from a space solar system must include the emissions from consuming rocket fuel during the launching the satellites, and the emissions from the energy consumed while producing the solar panels. In this paper, we calculate the CO2 emissions observed through the life cycle of a solar power satellite (SPS). This life cycle consists of the production of rocket fuel and solar panels and the construction of a Rectenna (power receiving antenna), satellite, and all other equipment listed in the Department of Energy/NASA reference system. The calculation also includes indirect CO2 emissions that occur in various stages of production of these materials. Our baseline scenario shows that the life cycle CO2 emissions for an SPS system per unit of energy generated are almost the same as the emissions for nuclear power systems and are much less than the life cycle emissions for LNG-fired and coal-fired power generation systems. Furthermore, our SPS-Breeder scenario, in which SPSs supply electricity for producing further SPS systems, shows significantly lower CO2 emissions. As electrical power generation constitutes one fourth of Japan's total CO2 emissions, reducing emissions from electric power generation is one of the most important issues on Japan's policy agenda for dealing with global warming. Our findings suggest that the SPS is the most effective alternative power generation technology.

Original languageEnglish
Pages (from-to)391-400
Number of pages10
JournalIEEE Transactions on Systems, Man and Cybernetics Part C: Applications and Reviews
Volume35
Issue number3
DOIs
Publication statusPublished - 2005 Aug

Fingerprint

Solar power satellites
Power generation
NASA
Life cycle
Solar power generation
Electric power generation
Global warming
Rockets
Space power generation
Satellites
Receiving antennas
Solar system
Launching
Liquefied natural gas
Nuclear energy
Solar energy
Electricity
Coal
Gases

Keywords

  • Alternative technology
  • C0 emissions
  • Department of Energy (DOE)/NASA reference system
  • Life cycle assessment (LCA)
  • Power generation
  • Solar power satellite (SPS)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Artificial Intelligence
  • Human-Computer Interaction
  • Computer Science Applications
  • Computational Theory and Mathematics

Cite this

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abstract = "Solar power generation and, in particular, space solar power generation seem to be one of the most promising electric power generation technologies for reducing emissions of global warming gases (denoted collectively as CO2 emissions below). Calculating the precise amount of net reduction in CO2 emissions of a solar power system over other alternative power systems requires careful life cycle considerations. For example, emissions from a space solar system must include the emissions from consuming rocket fuel during the launching the satellites, and the emissions from the energy consumed while producing the solar panels. In this paper, we calculate the CO2 emissions observed through the life cycle of a solar power satellite (SPS). This life cycle consists of the production of rocket fuel and solar panels and the construction of a Rectenna (power receiving antenna), satellite, and all other equipment listed in the Department of Energy/NASA reference system. The calculation also includes indirect CO2 emissions that occur in various stages of production of these materials. Our baseline scenario shows that the life cycle CO2 emissions for an SPS system per unit of energy generated are almost the same as the emissions for nuclear power systems and are much less than the life cycle emissions for LNG-fired and coal-fired power generation systems. Furthermore, our SPS-Breeder scenario, in which SPSs supply electricity for producing further SPS systems, shows significantly lower CO2 emissions. As electrical power generation constitutes one fourth of Japan's total CO2 emissions, reducing emissions from electric power generation is one of the most important issues on Japan's policy agenda for dealing with global warming. Our findings suggest that the SPS is the most effective alternative power generation technology.",
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