Definitions for "PASSIVE SOLAR DESIGN"
construction technique of using structural elements of a building to bring in heat in cold weather and deflect or vent heat in hot weather through the use of materials, coating, eaves, windows, landscape; examples: north, south, east, west orientation, sun/shade, insulation
the practice of orienting and sizing a building, its windows and its internal masses in such a way that it responds to the sun and the climate, reducing the need for mechanical heating and cooling equipment.
Passive solar design can be a low cost way to increase energy efficiency.