Maser is what Japan wants to use to send power from satellites to Earth: http://www.popsci.com/scitech/article/2009-09/japan-wants-power-300000-homes-wireless-power-space http://www.environmentalgraffiti.com/featured/solar-energy-beamed-down-space-lasers/17556
On Thu, Jul 4, 2013 at 11:25 AM, Onno Meyer <[email protected]> wrote: > Hello everybody, > > I've been thinking about 3E TL9 space industry. How would one build > a solar power sat? > > The solar cells are clear. A square kilometre gives 860 MW at 1 AU > from the sun. With the panel a couple thousand tons and 323 billion > $, plus the core with thrusters and the transmitter. > > But how about the power transmitter? VE87 says to take a laser or > maser. Microwave sounds right, but a 430,000-kJ disruptor with > extreme range gets a mere 87,000 yards 1/2D, or 50 miles. Sixteen > square kilometres deliver 6.88 GW at 200 miles, or 3.44 GW at 600 > miles. > > A laser would have 655 miles range from just one square kilometre. > > But I guess the price is the killer. > > Or am I making a mistake somewhere? > > Regards, > Onno > _______________________________________________ > GurpsNet-L mailing list <[email protected]> > http://mail.sjgames.com/mailman/listinfo/gurpsnet-l _______________________________________________ GurpsNet-L mailing list <[email protected]> http://mail.sjgames.com/mailman/listinfo/gurpsnet-l
