ID W71RXG | Add to lightbox | Download Sample

A HIGHLY EFFICIENT SOLAR GREENHOUSE AT A SCHOOL IN ALBUQUERQUE, NEW MEXICO. BLACK BARRELS CONTAIN WATER AND ARE HEATED DURING THE DAY. PLASTIC PANELS ARE DOUBLE LAYERED WITH A SPACE IN BETWEEN. AT NIGHT STYROFOAM BEADS ARE BLOWN IN THIS SPACE AS INSULATION AND SUCKED OUT DURING DAY