Electric power transmitted wirelessly in
Japan
In a breakthrough, Japanese researchers have successfully
transmitted electric power wirelessly to a pinpoint target using microwaves, an
advance that brings space-based solar power closer to reality. According to
Japan Aerospace Exploration Agency, or Jaxa, the researchers were able to
transform 1.8 kilowatts of electric power into microwaves and transmit it with
accuracy into a receiver located 55 metres away. In space-based solar power
generation, sunlight is gathered in geostationary orbit and transmitted to a
receiver on Earth. If implemented, microwave-transmitting solar satellites
would be set up approximately 35,000 kilometres from Earth.
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