The Bullitt Center Experience: The Light Dynamic -- Measured Performance of Lighting and Daylight

Apr 13, 2015

This paper presents measured daylighting, electric lighting, and lighting controls system performance data collected at the Bullitt Center, a 5016 m² (54,000 ft²) six-story office building in Seattle, WA (Bullitt, 2014). Bullitt Center is the largest urban office building to attempt to meet the Living Building Challenge (ILFI, 2014) which prescribes operating at net-zero energy performance. To meet this goal, the lighting system is designed to consume 67% less energy than a current similar-sized code-compliant Seattle office building. To achieve this goal while maintaining a high-quality luminous environment, the building is designed to use daylight as the primary source of illumination. This paper aims to provide a comprehensive view of qualitative and quantitative daylight and electric lighting system performance to meet net-zero energy; and discusses design intent and measured outcomes in a range of sky conditions and times of year within a tenant suite.

(This entry contains a conference paper and presentation in PDF. For optimal viewing, open in Adobe Acrobat Reader.)

Christopher Meek, University of Washington, Seattle
Michael Gilbride, University of Washington, Seattle
Heli Ojaama, University of Washington, Seattle
Weston Norwood, University of Washington, Seattle
Proceedings of the BEST4 Conference
Presented at: 
BEST4 Conference
Published & professionally reviewed by: 
BEST4 Technical Committee, National Institute of Building Sciences

Community Reviews

No votes yet