Winner of the first place prize for best communication project in the Network Wales Awards, the Sol Cinema is the world's smallest solar-powered movie theater.
Housed inside of a 1960s-era travel trailer, the cinema travels around the South Wales area, screening films with ecological themes to groups of eight at a time - that's all the trailer can hold.
Built by artist Paul O'Connor and others at Undercurrents, a British art collective, Sol Cinema is powered entirely by the sun. The theater uses a small LED projector that is powered by lithium ion batteries, which are, in turn, powered by a solar panel on the outside of the trailer.
Because the batteries can store power, the theater runs day and night and is constantly visiting events, festivals, and other parties.