Title: Unit 7 Introduction
Course: WGF 107 DEVELOPMENT > Section: Content

Title | Efficient Lighting Fundamentals
Image | Workforce Careers Center – Lincoln Land Community College, Springfield, Illinois, with efficient lighting system (at dusk).
Content | Besides affecting the physical and emotional well-being of the building occupants, a building's interior lighting system is both a dominant consumer of electrical energy and a major source of internal heat. In the United States about one-quarter of the electricity budget is spent on lighting, or more than $37 billion annually. In commercial buildings it normally accounts for more than 30% of the total electrical energy consumed. Yet much of this expense can be avoided. Specifying a high quality energy efficient lighting system that utilizes both natural and electric sources as well as lighting controls can provide a comfortable yet visually interesting environment for the occupants of a space. Recently developed energy efficient lighting equipment such as compact fluorescent lamps and "soft-start" electronic ballasts can be used to help cut lighting operational costs 30% to 60% while enhancing lighting quality, reducing environmental impacts, and promoting health and work productivity.
Image #2 | Efficiency comparison of 4 major lighting technology groups.
Links/Uploads | Energy efficient lighting – Wikipedia http://en.wikipedia.org/wiki/Energy_efficient_lighting Daylighting – Whole Building Design Guide http://www.wbdg.org/resources/daylighting.php Energy Efficient Lighting – Whole Building Design Guide http://www.wbdg.org/resources/efficientlighting.php
Attributions | Image courtesy of Lincoln Land Community College, Springfield, IL Image #2 courtesy of Wikipedia – The Free Internet Encyclopedia. Content courtesy of Whole Building Design Guide – National Institute of Building Sciences