Native American reservations have been sites of great extremes–extreme poverty juxtaposed with highly successful casinos; great opportunities for utilizing natural resources for wealth juxtaposed with what is too-often considerable pollution and an inability to fully remediate sites. One reservation is turning to solar power as a source for a new tribal economy. It’s an impressive scheme, and it just may be an inspiration for more green designs, such as the use of exposed geomembrane caps with thin-film photovoltaics embedded in the surface.