Off-world Power Generation: Difference between revisions
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* the sun primarily produces visible light (not microwaves or gamma...) | * the sun primarily produces visible light (not microwaves or gamma...) | ||
* laser transmission is more efficient than microwave, except where earth's atmosphere interferes | * laser transmission is more efficient than microwave, except where earth's atmosphere interferes | ||
* there are [https://map.gsfc.nasa.gov/mission/observatory_l2.html four lagrange points] that provide constant sun exposure at predictable locations | |||
Basic premise: | Basic premise: | ||
Revision as of 22:28, 28 October 2018
Given:
- earth to moon: 238,900 miles
- l1 to earth/moon: 1 million miles
- the sun primarily produces visible light (not microwaves or gamma...)
- laser transmission is more efficient than microwave, except where earth's atmosphere interferes
- there are four lagrange points that provide constant sun exposure at predictable locations
Basic premise:
<Earth> <- <Earth-orbit satellite> <- <Earth's moon> <- <Earth-Sol Lagrange-point solar array>
- <Earth> <- <Earth-orbit satellite>
Laser transmit antenna in space: 1 meter diameter per GW Receive: Several hundred meters across
- <Earth-orbit satellite> <- <Earth's moon>
- <Earth's moon> <- <Earth-Sol Lagrange-point solar array>