Nuna is the name of a series of manned solar powered race cars that have won the World Solar Challenge in Australia seven times: in 2001, 2003, 2005, 2007, 2013, 2015 and 2017. The vehicles are built by students who are part of the "Brunel Solar Team" (formerly Nuon Solar Team and Vattenfall Solar Team) at the Delft University of Technology in the Netherlands, sponsored by Brunel (formerly N.V. Nuon Energy).