Roasting chile with the sun (IMAGE) DOE/Sandia National Laboratories Caption Roasting green chile on top of Sandia National Laboratories’ National Solar Thermal Test Facility. Roasting green chile with concentrated sunlight instead of propane produces flavorful chile and reduces carbon dioxide emissions. Credit Photo by Randy Montoya/Sandia National Laboratories Usage Restrictions With credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.