Energy and Economic Efficiency Alternatives for Electric Lighting in Commercial Buildings.

摘要

This report presents the results of an investigation to determine the energy savings potential, economic efficiency, and energy demand reduction of various energy conserving lighting alternatives. Three categories of lighting alternatives are examined for their effectiveness in terms of energy savings, economic efficiency, and peak demand reduction: (1) use of a renewable resource (daylighting) to replace or supplement electric lighting; (2) use of task/ambient lighting in lieu of overhead task lighting; and (3) lighting equipment changes to improve energy efficiency. The technologies included in this study are examined and ranked in terms of their energy efficiency and economic efficiency for a typical base building. Energy efficiency is expressed as the ratio of the total energy use for the technology to the total energy use of the base case, and economic efficiency is defined as the simple payback period for each technology. (ERA citation 12:026936)