Several solar thermal power stations, including the new 64 MW Nevada Solar One, have also been built. The largest of these solar thermal power stations is the SEGS group of plants in the Mojave Desert with a total generating capacity of 354 MW, making the system the largest solar plant of any kind in the world. The largest solar photovoltaic plant in the U.S. is the 4.6 MW Springerville Generating Station, located near Tucson, Arizona. 