STARS (image) DOE/Pacific Northwest National Laboratory Caption With the so-called Solar Thermochemical Advanced Reactor Systems, or STARS, natural gas power plants can use about 20 percent less fuel. This dish converts natural gas and sunlight into a more energy-rich fuel. Credit PNNL Usage Restrictions None 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.