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Space-Based Solar Power


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https://spectrum.ieee.org/solar-power

 

Caltech Tests Space-Based Solar Power Using a satellite as testbed for wirelessly beaming power from orbit 

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For about as long as engineers have talked about beaming solar power to Earth from space, they’ve had to caution that it was an idea unlikely to become real anytime soon. Elaborate designs for orbiting solar farms have circulated for decades—but since photovoltaic cells were inefficient, any arrays would need to be the size of cities. The plans got no closer to space than the upper shelves of libraries.

 

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