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Near-Zero AWES Footprints

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  • dave santos
    Joe wrote- Land footprint for some crosswind-cableway AWES could approach zero. Yes, but this is in-principle true of virtually all air-retractable AWES
    Message 1 of 4 , Mar 18, 2013
      Joe wrote- "Land footprint for some crosswind-cableway AWES could approach zero. "

      Yes, but this is in-principle true of virtually all air-retractable AWES architectures, if they can be made reliable enough (no crashes outside the defined footprint). KULeuven, for example, proposes its kiteplanes can operate from a tiny area while constantly overflying surrounding land uses. An anchor field of quazi non-dimensional points "approaches zero", if nothing ever touches the surface between anchors. To span an AWES from three anchors over a major city approaches a zero footprint, if the tri-tethers can be flown into place and land at the anchors. Elevated tracks can avoid a massive footprint (but not a massive capital-infrastructure cost).

      Near-zero AWES footprints will emerge over time, but overflying is currently unreliable, and so an AWES "crash zone" must count as footprint, until this reality changes. Best practice for now is to not overfly the boundaries of a kite field, to avoid a NIMBY backlash and secure early regulatory approvals.

      Specific footprint exception cases; suspension from terrain or towers, hay farms, and offshore.




    • Joe Faust
      footprint of a kite system, AWES footprint, * AirborneWindEnergy/message/8834
      Message 2 of 4 , Mar 18, 2013

        footprint of a kite system, AWES footprint,

        • AirborneWindEnergy/message/8834
        • crash zone
        • anchor operations
        • downing zone
        • airspace use
        • land use
        • operations and maintenance access
        • current best practices
        • future visions
        • free-flight AWES, FF-AWE
        • Special siting cases: terrain-enhanced, offshore, hay farms,
        • v
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