На английском языке, United States Air Force, 175 pages.
Passive solar systems use the energy from the sun to heat, cool, and illuminate buildings. A properly designed passive commercial-type building will not completely eliminate the need for auxiliary energy systems for heating, cooling, or lighting. Building size, large internal loads, and diverse building use patterns will cause continual reliance on conventional auxiliary energy sources. However, it is possible, through a combination of passive solar concepts, to reduce total energy costs by as much as 40% while maintaining positive savings-to-investment ratios (SIR).
