NOVA PBS

New Ways to Catch Rays

back | 3 of 10 | next

Mirrored dish

Mirrored dish
Resembling large satellite dishes, these giant mirrored dishes collect solar radiation and use it to generate electricity in a novel way. Each dish bears its own Stirling engine, which works by using heat to expand a hot gas that drives pistons to produce electricity. Developed by Stirling Energy Systems, early versions are in use at Sandia National Laboratories in New Mexico.


Saved By the Sun homepage | NOVA homepage

NOVAPBS