The Energy Department has offered a $1.4 billion loan guarantee for a solar thermal power complex in the Mojave Desert that could produce as much as 392 megawatts of electricity. The loan guarantee for Oakland, California-based BrightSource EnergyÔÇÖs project is the largest the department has given for a solar power project. The Ivanpah Solar Electric Generating System is the first utility-scale solar power plant to undergo licensing in California in almost 20 years.