The U.S. military has long been an innovator, and the field of renewable energy is no exception to that. In this video, Fool.com contributor Aimee Duffy talks to fellow contributor Tyler Crowe about the army's recent announcement to build a solar farm in West Texas.  The 200-acre plant will be the military's largest solar installation, capable of generating 20 megawatts of power. Aimee talks about the military's commitment to alternative energy, which includes not only solar, but biofuels and energy efficiency initiatives as well.