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Japan has a plan to beam energy down to Earth from space
Japan plans to launch a satellite mission that will soon test sending a solar power beam from space to Earth.
Advances in lightweight materials, microwave transmission, and cheaper launch systems have made the dream of harvesting solar energy in space significantly more realistic. A satellite moving at 17,400 miles per hour must beam solar energy to a stationary target below, requiring precision tracking and potentially massive receiver arrays that span kilometers. If successful, future versions of the satellite could scale up to provide continuous, renewable energy from orbit, offering a clean and consistent source of power even when the sun isn’t shining on Earth.
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