Hi there space traveller! If you want to fully experience the graphics on this page, we suggest you view it in a modern browser! You wouldn't want to miss something awesome. Ok, bye bye.
Every hour, more solar energy reaches the Earth than humans use in a year.
of this energy is reflected back into space by the atmosphere.
Since clouds, atmosphere and nighttime are absent in space, satellite-based solar panels would be able to capture and transmit substantially more energy than terrestrial solar panels.
Solar panel equipped, energy transmitting satellites collect high intensity, uninterrupted solar radiation by using giant mirrors to reflect huge amounts of solar rays onto smaller solar collectors. This radiation is then wirelessly beamed to Earth in a safe and controlled way as either a microwave or laser beam.
This distance is called
Relatively low startup costs in the $500 million to $1 billion range.
The single launch per laser transmitting satellite would be self assembling, lowering costs and risks substantially.
The small diameter of the laser beam would make it simpler and cheaper to implement on the ground.
Steady, uninterrupted transmission of power through rain, clouds, and other atmospheric conditions.
Safely transmit power through air at intensities no greater than midday sun.
Provide upwards of 1 GW of energy to terrestrial reciever, enough to power a large city.
Comparatively low power of each individual satellite, in the area of 1 to 10 MW per satellite, would require several satellite to make a substantial impact.
There are several safety concerns with lasers in space, such as blinding and weaponization.
Laser transmitting satellites would have trouble beaming power through heavy clouds and rain.
Production cost in the tens of billions of dollars range, requiring as many as 100 launches into space, with space based assembly required.
The terrestrial receiver would be several kilometers in diameter.
The long distance of the satellite from Earth would make it nearly impossible to repair.