Economic and Environmental Analysis of Retrofitting a Large Office Building with Energy-Efficient Lighting Systems |
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Authors: | JOHN STANSBURY ANN M MITTELSDORF |
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Institution: | (1) Department of Civil Engineering, University of Nebraska-Lincoln, 205C PKI, 1110 South 67th Street, Omaha, Nebraska 68182, USA, US;(2) US Army Corps of Engineers, 215 N 17th Street, Omaha, Nebraska 68102, USA, US |
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Abstract: | An evaluation of the economic and environmental costs and benefits that would result if the Zorinsky Federal Building, located
in Omaha, Nebraska, USA, converted its current lighting system to a more energy-efficient system (i.e., joined the EPA's Green
Lights Program) was conducted. Lighting accounts for 20–25 percent of all electricity sold in the United States. Costs considered
in the study included the cost of retrofitting the building's existing lighting system and the cost of disposal of the current
lamps and ballast fixtures. Benefits included a reduction of electric utility costs and a reduction of emissions of SO2, NO
x
, CO2, and CO from electric utility power plants. Environmental and health issues for air pollutant emissions were also addressed.
The results showed that significant reductions in utility bills as well as reductions in air emissions would result from a
major building converting to a more energy efficient lighting system. The results showed that conversion of this large building
would reduce SO2 emissions by 14.6 tons/yr and NO
x
emissions by 6.3 tons/yr. In addition, the conversion would reduce annual energy costs by approximately $114,000. |
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Keywords: | : Energy efficient Lighting Air emissions Economic Environment |
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