What people see on earth is the sun s light energy reflecting off the moon s surface.
Moon solar panels beaming power to earth.
Contrary to appearances of sbsp in popular novels and video games most designs propose beam energy densities that are not harmful if human beings were to be inadvertently exposed such as if a transmitting satellite s beam were to wander off course.
The collecting satellite would convert solar energy into electrical energy on board powering a microwave transmitter or laser emitter and transmit this energy to a collector or microwave rectenna on earth s surface.
Beaming solar power from space to earth is becoming practical.
The alternative is to turn the energy from the solar array into microwaves and beam these to a collector on the earth s surface to be converted into electricity.
A solar panel array placed on the moon would generate electricity during earth s nighttime hours because it is receiving direct sunlight containing photons.
The new solar cells panels and production processes being developed through the program could revolutionize space based power.
Research from the qian xuesen laboratory of space technology in china shows that solar power generated on the moon can supply future lunar bases with plenty of energy to spare.
But it remains to be seen if this ambitious project can overcome the significant technological hurdles it faces.
The key to lunar based solar on earth is microwave transmission.
With thousands of solar systems and microwave transmitters on the moon and receivers in every nation on earth the result would be pollution free electric power that is abundant clean stable.
Researchers at the u s.
The idea of harvesting solar energy in outer space through solar panels and transferring it to earth via microwave beams is not new although it has been limited to research projects due to the high cost of launching material into orbit.
The reflected light seen from earth does not contain a significant number of photons so in most cases moon light will not cause the panels to generate electricity.
Unlike the sun the moon does not generate its own light energy.
China has invested 15m in a test for a solar space station a craft that will orbit the earth absorbing solar rays converting them into electricity and beaming them back down to the planet.
The idea of capturing solar energy in space where the sun never stops shining and beaming it to earth may seem far fetched but such technology is further along than most realize.
Lunar solar power lsp arrays would receive higher energy density from sunlight than we get through earth s atmosphere avoid weather and could beam energy to any part of earth facing the moon.