Energy Analysis Process for Daylight Utilization in Office Buildings

Abstract

This study is concerned with developing an analysis process for estimating the annual energy savings due to daylighting in office buildings. Design variables and their impact on savings potential are discussed at length in the early stages of the process. A sensitivity analysis is performed on several of the detailed daylight design variables to show specifically how they affect annual energy saving. The lumen method is used to calculate interior daylight illumination levels once the design variables are fixed and the annual energy savings is found using a computer summation process. An example project is used to apply the process.