Plenty of electric power is available from:
CSP (Concentrating Solar Power, also known as Solar Thermal Power), or
SEGS (solar electric generating systems)
www.energylan.sandia.gov/sunlab/research.htm
A desert area 10 by 15 miles could provide 20,000 MW of power, while
the electricity needs of the entire U. S. could theoretically be met
by an area 100 miles on a side.
Molten salt night time energy storage:
www.sandia.gov/Renewable_Energy/solarthermal/NSTTF/salt.htm
Molten salt technology.
FAQ
www.energylan.sandia.gov/sunlab/faqs.htm
Berni