- Author
- Treado, S. J.
- Title
- Lighting and HVAC: Heating, Ventilating, and Air Conditioning Affect Lighting Efficiency.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Journal
- Lighting and Design Application, 18-23, July 1991
- Keywords
- lighting equipment | heating | ventilation | air conditioning
- Abstract
- Lighting in commercial buildings is the single largest user of electric energy, typically ranging from 25 to 50 percent of total building electrical energy requirements. In 1980, 2.8 x 10(15) Btu of energy was used for lighting for a total cost of over $40 billion annually. An overall increase in lighting efficiency of 1 percent would produce a savings of $400 million/year.