Foot-candles, watts and lumens are inadequate terms for describing energy-effective lighting, but these terms are often also the basis of energy codes. In this session, a vision scientist, lighting designer and energy code consultant describe how lighting quality is incorporated into California's Title 24 building energy code and Title 20 appliance energy efficiency standards. Attendees will learn about lighting quality elements within the code and how to use these metrics to create high-quality, code-compliant lighting projects. Topics include how to understand lighting quality metrics and when and how to claim lighting power allowances for quality options within the code.
- Understand key metrics of lighting quality (color fidelity, color constancy, color saturation, IEEE and NEMA flicker metrics, contrast ratio).
- Understand key elements of visibility (illumination, contrast, adaptation, color discrimination).
- Understand basis and application of LPD requirements in Title 24 and ASHRAE 90.1.
- Understand quality options within the code through an overview of lighting quality elements in California's Title 24 (building code) and Title 20 (appliances standard).
Integrated Lighting Concepts
Bernard Bauer has 40+ years’ lighting experience with emphasis on retail, hospitality, museum and environmental site lighting. He is a lighting instructor for Pacific Gas & Electric, Southern California Edison and San Diego Gas & Electric. Bauer has participated in California Energy Commission Title 24 workshops, and was recently worked with CA Public Utilities Stakeholder contractor in support of the Title 24 2019 standards.
McHugh Energy Consultants Inc.
Jon McHugh is a registered mechanical engineer and the principal of McHugh Energy Consultants Inc. Jon has led utility- and government-sponsored research on skylight photometry, photocontrol performance, lighting flicker and lighting power density. This work has resulted in changes to technical standards, as well as state and national energy codes.
University of British Columbia
Lorne Whitehead is a professor at the University of British Columbia, where his research includes color vision and metrics. He serves on the Board of the CIE, and is a fellow of the OSA, IES and NAI. He holds 140 US patents that find application in illumination and display products.
