Overhauling Lighting and Critical Power Strategies at Costco
Includes a Live Web Event on 10/20/2026 at 1:00 PM (EDT)
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Webinar Information
| Virtual |
| October 20, 2026 |
| 0.2 AEE Credits | 0.1 CEU |
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Webinar Description
A virtual webinar, held over 1 hour.
Join us to get a rare look inside how one of the country's largest retailers is modernizing its infrastructure at scale. Costco's lighting team will begin by discussing the evolution of lighting Costco's retail environment, from passive architectural design like daylight harvesting through skylights, to active equipment upgrades, lifecycle costing of highbay fixtures, and the scaling of networked lighting controls. Costco's power team will then shift focus to the power side, detailing the logistical challenges of transitioning a national portfolio of aging electrical switchgear from a reactive "run-to-fail" model to a proactive maintenance program. Together, these two perspectives will show how energy efficiency, reliability, and long-term cost management come together in practice at one of the world's most recognizable companies.
About the Presenters
Gregg Zimmerman is an Assistant Buyer with over 10 years of experience in the Corporate Purchasing and Energy Department at Costco Wholesale. Holding a Certified Energy Manager (CEM) credential, Gregg helps oversee facility lighting equipment, retrofits, and controls at Costco locations across the United States and Canada.
John Mathis is a Certified Energy Manager and Assistant Buyer in the Corporate Purchasing & Energy department at Costco Wholesale. With over nine years of experience in energy management and project leadership, and a total of 19 years working for Costco, he focuses on the reliability, safety, and efficiency of on-site power generation and electrical distribution systems for more than 700 Costco facilities across the United States and Canada.
To learn more about Gregg and John visit the 'Presenter(s)' tab.
Gregg Zimmerman
Assistant Buyer
Costco
Gregg Zimmerman is an Assistant Buyer with over 10 years of experience in the Corporate Purchasing and Energy Department at Costco Wholesale. Holding a Certified Energy Manager (CEM) credential, Gregg helps oversee facility lighting equipment, retrofits, and controls at Costco locations across the United States and Canada.
John Mathis
Assistant Buyer
Costco
John Mathis is a Certified Energy Manager and Assistant Buyer in the Corporate Purchasing & Energy department at Costco Wholesale. With over nine years of experience in energy management and project leadership, and a total of 19 years working for Costco, he focuses on the reliability, safety, and efficiency of on-site power generation and electrical distribution systems for more than 700 Costco facilities across the United States and Canada.
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