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Sunbeams from Space Mirrors Feeding Solar Farms on the Ground at Dusk and Dawn


For 40 years, the systems designers of space solar power have given their greatest attention to wireless power as microwave transmission from space to earth. The approach taken in this application is to place space satellites in lower sunsyncronous orbits for the purpose of gathering and focusing sun’s rays into a beam of reflected sunlight. The simple idea and application of this design is to extend the solar day of terrestrial solar farms, thereby increasing solar production capacity to 60 percent and reducing solar electricity costs to under 6 cents/kWh by delivering sunlight to a given location some 14 (rather than 6 or 7) hours per day.

Completed by MDIA students working in partnership with the Grid Lab at Ohio University. This was published as part of Issue 17 of the Online Journal of Space Communication and is reproduced with permission.

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