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Space- and Earth-based solar power for the growing energy needs of future generations

机译：天基和地基太阳能满足后代不断增长的能源需求

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摘要

The future global supply with terrestrial regenerative energies (solar, wind, hydro and geothermal) is discussed and compared to energy from space via Solar Power Satellites. It is shown that both have the potential to satisfy global energy needs. Obviously, regenerative solutions must be taken into account and installed with higher priority within the next decades to reduce the deposition of CO_2 into the atmosphere. This is absolutely necessary to stabilize the climate. In addition, the threatening depletion of fossil and nuclear fuels in the long run forces research into alternative solutions. Concerning solar power from space, the recently developed concepts for light-weight inflatable and deployable solar arrays/concentrators—like in the NASA 'Sun Tower' and the 'European Sail Tower SPS'—are reviewed and major problems with wireless power transmission are discussed. Compared to earlier concepts the designs have the potential to reduce significantly the masses and, thus, the costs. But the technological demands and operational uncertainties are still immense. Anyhow, major progress with cost reductions of one to two orders of magnitude is required for the space option to become competitive with terrestrial regenerative options.
机译：讨论了地球再生能源（太阳能，风能，水能和地热能）的未来全球供应，并将其与通过太阳能卫星的太空能源进行了比较。结果表明，两者都有潜力满足全球能源需求。显然，必须考虑采用再生解决方案，并在未来几十年内将其安装在更高的优先级，以减少CO_2向大气中的沉积。这对于稳定气候绝对必要。此外，从长远来看，化石燃料和核燃料的威胁性消亡迫使人们开始研究替代解决方案。关于来自太空的太阳能，最近对轻型可充气和可展开的太阳能电池阵列/集中器（例如在NASA“太阳塔”和“欧洲帆塔SPS”中）开发的概念进行了回顾，并讨论了无线功率传输的主要问题。与早期的概念相比，设计具有显着减少质量并因此降低成本的潜力。但是技术要求和操作不确定性仍然很大。无论如何，要使空间选择与地面再生选择竞争，就需要将成本降低一到两个数量级的重大进展。

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  • 来源
    《Acta astronautica》 |2004年第9期|p.389-399|共11页
  • 作者

    Wolfgang Seboldt;

  • 作者单位

    Institute of Space Simulation, German Aerospace Center (DLR), Cologne, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 航天（宇宙航行）;
  • 关键词

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