Abstract: An open wire frame formed of wire ladder stock having intersecting right angle wires includes at least one upwardly inclined open frame section overlying an underlying open pan and terminating at a lower edge in a downward directed projection of U-shape and being fixedly mounted relative to the underlying pan. A flexible thin film solar energy transmissive sheet overlies the open wire frame and is stretched tightly about the frame to form a downwardly facing condensation surface and an upwardly facing U-shaped collection trough along the lower edge thereof for condensate collection. The open wire frame may have vertical free ends for penetration into the ground or into the sides of the upwardly open pan. Strips of wood, metal, etc., fastened by screws, etc., may sandwich the lower sides of the flexible thin film sheet against the side walls of the upwardly open pan to maintain the sheets stretched about the open wire frame and complete an enclosure about the pan.