Our technology is a novel semiconductor structure that uses well understood properties of semiconductors to convert ambient heat into electricity (hence Ambient Thermal Electric Converter, or ATEC. See www.ThermaWatts.com/the-atec-concept.html). We have fabricated and tested functional prototypes (see Projects/Test Results at http://www.thermawatts.com/atec-test-results.html on website. We have been awarded US patent 8624100 for our structure.