Japanese corporation proposes huge lunar power station
SCIENCE 28 NOVEMBER 13 by NICHOLAS TUFNELL
Japanese architectural and engineering firm the Shimizu Corporation has announced its lunar solar power generation concept, dubbed the "Lunar Ring", which it hopes will one day allow for the unlimited use of clean energy, claiming it could continuously send 13,000 terawatts of power back to Earth.
The Moon-based power station will work by initially establishing an array of solar cells that will extend like a belt along the entire 11,000km lunar equator, eventually growing in width from a few kilometres to 400km. Electric power cables will transfer power from the lunar solar cells to transmission facilities, which will be equipped with 20km microwave power antennas designed to transmit power to receiving rectennas with a radio beacon used to ensure accurate transmission. Finally, high-energy-density lasers will be beamed to offshore receiving facilities on Earth.
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