if we got solar energy from "an area of the southwestern desert 100 miles on a side, that would be enough, in and of itself, to provide 100 percent of all the electricity needs for the united states of america in a full year."
if we got solar energy from "an area of the southwestern desert 100 miles on a side, that would be enough, in and of itself, to provide 100 percent of all the electricity needs for the united states of america in a full year."
solar energy:48
his plant used parabolic troughs to power a 45–52 kilowatts (60–70 hp) engine that pumped more than 22,000 litres (4,800 imp gal; 5,800 us gal) of water per minute from the nile river to adjacent cotton fields.