Daylighting is the use of windows and skylights to bring sunlight into buildings. Daylighting in businesses and commercial buildings can result in substantial savings on electric bills, and not only provides a higher quality of light but also improves productivity and health. Daylighting in schools has even improved student grades and attendance.
Today's highly energy-efficient windows, as well as advances in lighting design, allow efficient use of windows to reduce the need for artificial lighting during daylight hours without causing heating or cooling problems.
Energy 101: Daylighting Basics
This video explains how homeowners and businesses can use highly efficient, strategically placed windows to save money.