Students should research, compare and contrast the advantages of PV systems in the Caribbean, Mexico, and South America, where power grids are underdeveloped. Similarly, the increasing electricity costs and blackout potentials in the United States favor solar alternatives like the National Renewable Energy Laboratory built net zero-energy state-of-the-art research facility that generates more energy than it uses. [21and http://www.nrel.gov/sustainable_nrel/rsf.html]