Completar frases Solar Panels - BiodiversityVersión en línea ................................................................................................................................................................. por Gabi 1 sun expencive electricity oil electricity collect phenomenon oil machines daytime Solar panels are that can solar energy from the . Solar enegy is a that can be produced into . The solar panels are filled with tanks of , so that when it catches solar energy it can burn the and turn it into . The only bad things about it are that this only works at and that they are .