ASHRAE 90.1 Lighting Model

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About this Course

The IES offers Educational Webinars throughout the year, purposefully spanning a broad range of topics and speaker expertise. ASHRAE 90.1 Lighting Model was a live webinar, now available as an archived webinar and CEU course.

Description: The Illuminating Engineering Society is a co-sponsor of Standard 90.1 along with ASHRAE. ASHRAE published an addendum and responded to comments on the addendum related to Standard 90.1. The addendum will establish the lighting power density values for Standard 90.1-2019. The focus of the webinar will be how the lighting model works and the inputs and outputs of the model. Presenters on the webinar include IES members: Kelly Seeger, Marty Salzberg, and Michael Myer.

Learning Objectives:

By the end of this course learners will be able to...

1. Review the history, scope and partners in the development of ANSI/ASHRAE/IES Standard 90.1. 
2. Explore methodology updates affecting LPD inputs including vertical lighting and reflectance values. 
3. Discuss compliance updates including illuminance criteria, luminaire data sets, and space type models. 
4. Review the concept behind the Building Area Method and compliance metrics. 


ASHRAE 90.1 LIghting Model
Open to view video.
Open to view video. This video is required for course completion.
10 Questions  |  Unlimited attempts  |  7/10 points to pass
10 Questions  |  Unlimited attempts  |  7/10 points to pass ASHRAE 90.1 Lighting Model Quiz
3 Questions
3 Questions This survey is required for course completion.
1.00 CEU credit  |  Certificate available
1.00 CEU credit  |  Certificate available

Kelly Seeger

Technical Policy Manager

Kelly Seeger is Technical Policy Manager for Signify where she leads building codes and standards activities for North America, advising company business groups, market teams, and researchers on implications for products and systems from pre-development through installation. She serves as Lighting Subcommittee Chair of ASHRAE SSPC 90.1 and is also active in the development of CA T24 and IECC and is involved with key organizations relevant to building efficiency, green building standards & codes, energy rating and benchmarking, and smart buildings. Kelly has worked in lighting and energy efficiency in the U.S. for nearly twenty years; her experience includes lighting design and application, strategic planning, a voice of customer and market analysis, presentation and training, and energy efficiency & transformative market consulting. She holds M.S. Lighting and B.S. Building Sciences degrees from Rensselaer Polytechnic Institute in New York. She is Lighting Certified by the NCQLP, a LEED Accredited Professional, and is Past President of the New York City Section of the Illuminating Engineering Society. 

Marty Salzberg

Architectural Lighting Consultant

Marty Salzberg worked as an architectural lighting consultant for more than thirty years. Her work was honored with multiple industry awards for design and energy efficiency. As a member of the Illuminating Engineering Society, Marty has been a member of the Library Lighting Committee since 2003 and is currently the committee Chair. Marty is a Professional Member of the IALD, where she contributes to the work of the Energy & Sustainability Committee by serving as the IALD representative to the ASHRAE/IES 90.1 energy standard development committee. She recently served on the IALD committee to edit the Guidelines for Specification Integrity, teaches about the NYC Energy Code at BEEx and is teaching lighting design at the New York School of Interior Design.

Michael Myer


Michael Myer is a senior researcher at Pacific Northwest National Laboratory, where he supports U.S. Department of Energy programs including energy codes, appliance standards, and field evaluations.