dated today....
Advances seen cutting solar costs

Solar panels made out of special
semiconductors could produce electricity
at a similar cost as the electricity produced
by coal. Nanosolar,
a technology firm in San Jose,
Calif., makes solar cells out of a
CIGS semiconductor, which uses
copper, indium, gallium and selenium.
These nano-panels can produce electricity
at 5-6 cents per kilowatt
hour. The cost is much less
than most solar power, which costs
about 18-22 cents per KW hour,
MIT Technology Review reported