claim: 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.
evidence: 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.