NOVA PBS

New Ways to Catch Rays

back | 7 of 10 | next

Triple-junction cell

Highly concentrated sunlight
This is one of three High Concentration Photovoltaic arrays operating at Nevada's Clark Power Station. These giant panels, produced by Amonix Corp., use optical lenses to concentrate an intense amount of sunlight onto solar cells. Since each lens channels "250 suns" worth of light to each square in the panel, the same amount of electricity can be produced using a fraction of the silicon material typically required. Each array generates 25 kilowatts of electricity, enough to power about a dozen homes.


Saved By the Sun homepage | NOVA homepage

NOVAPBS