R
rakkabal
Guest
I have been trying to find some info on the subject matter but its seems more elusive than I thought, wondering if anyone here has some info.<br /><br /><blockquote><font class="small">In reply to:</font><hr /><p>NASA researchers have found that at 1 astronomical unit (AU), which is the distance from the sun to Earth, equal to 93 million miles (150 million km), sunlight can produce about 1.4 kilowatts (kw) of power. If you take 1.4 kw and divide it by the speed of light, you would find that the force exerted by the sun is about 9 newtons (N)/square mile (i.e., 2 lb/km2 or .78 lb/mi2).<p><hr /></p></p></blockquote><br /><br />I would expect that the 1.4 kw is over an area but my source failed to mention how big that area is. I assumed that this info was attained from a satellite in orbit while the solar cells faced the sun.<br /><br />Also if anyone does know how many kw are generated on the dark side of a planet (out of our suns direct light) please let me know.