How does passive solar work?
Architects can use many design elements to control ambient light and limit heat gain and loss from a structure, reducing the costs of maintaining a comfortable temperature and lighting level in homes and buildings. These elements are integrated into the design of the building and do not actively transport heat, hence the term passive solar. In the summer, heat gain can be reduced by proper placement of large deciduous trees and using overhanging eaves to shade windows form the high sun. In the winter, solar heat that shines in through windows can be stored in specially designed floors and walls and released through out the night. Sky lights provide natural light indoors during the day to reduce the cost of lighting.
