Passive solar design is the use of the suns energy for heating and cooling of living spaces. The building takes advantage of natural energy. The house/building requires no mechanical systems. Some things that are commonly found in a passive solar design are thermal mass, thermal chimneys, operable windows , etc. Passive solar design is practiced around the world. We want to make a passive solar design house because we want a building where it wastes no fossil fuels and where its all natural and it doesn't affect the earth.