Large-Scale Daylighting Analysis for Buildings, Products, and Policy

Robert Guglielmetti, Brian Ball, Jennifer Scheib, Mostapha Roudsari

Research output: Contribution to conferencePaper


Daylighting in buildings has come under increased scorn in the wake of ubiquitous solid-state lighting (SSL), as installed lighting power densities in buildings have been reduced to the point where designers and owners question the benefits of properly-designed daylighting and electric lighting control. At the same time the very process of demonstrating well-executed daylighting to satisfy new building rating systems has become burdensome. This paper demonstrates the utility of illuminance as an input to simple, existing qualitative and quantitative metrics for daylighting performance in buildings, at scale. This assertion is supported by sensitivity analysis of a large-scale daylighting simulation dataset. Uses of this data for quantifying non-energy benefits (NEBs) of daylighting are also explored. We do not eschew the use of newer, more detailed daylight metrics in design, but we do encourage the use of simple daylight metrics for a broader range of new and retrofit building projects toward a net-zero future.
Original languageAmerican English
Number of pages10
StatePublished - 2018
Event2018 ACEEE Summer Study on Energy Efficiency in Buildings - Pacific Grove, California
Duration: 12 Aug 201817 Aug 2018


Conference2018 ACEEE Summer Study on Energy Efficiency in Buildings
CityPacific Grove, California

Bibliographical note

Available from ACEEE: see

NREL Publication Number

  • NREL/CP-5500-74178


  • daylighting
  • illumination
  • solid-state lighting


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