Board of Directors

The Board of Directors for NASRC is composed of leaders from the supermarket and refrigeration industries, all of whom are committed to driving transition toward more sustainable, climate-friendly refrigeration technology.


Bryan Beitler CEO

CoolSys - Vice President of Engineering


Mr. Beitler’s career includes 35+ years experience in refrigeration and HVAC design, sales, energy and operations support for businesses focused on grocery retailers and other clients in cold storage and process refrigeration. Mr. Beitler’s responsibilities over the years have been highly technical, managing engineering services, manufacturing of refrigeration equipment, providing direct sales support to select customers, as well as operations support and management of field construction operations.  He holds a degree in Engineering Technology with emphasis on refrigeration and HVAC from California Polytechnic State University, San Luis Obispo Ca.  Mr. Beitler participates in industry organizations such as ASHRAE & FMI.  He is a contractor’s license qualifier, and holds 30+ licenses in various states and regions, and recently was a co-author of an ASHRAE sponsored Commissioning Guide for Commercial and Industrial refrigeration systems. Mr. Beitler resides with his wife Lynne in Alta Loma, Ca.  He enjoys fly fishing, golf, the family summer home near Yellowstone Park, and performing the important tasks of being a father to two wonderful children, and two equally wonderful grandchildren.

Peter Dee, Chair

Danfoss - Sales & Service Director, Danfoss Food Retail Sales & Services North America

Peter Dee is Sales & Service Director of Danfoss Electronics North America, a $400 million subsidiary and largest market for the global manufacturer of high-efficiency heating, air-conditioning, refrigeration, and motion systems. He has over 30 years of industry experience. Peter joined Danfoss in 2012 and leads the companies’ development of business in supermarkets and commercial refrigeration, responsible for accelerating the adoption of natural refrigerants and technologies to reduce energy consumption. Prior to joining Danfoss Peter was President of Cool Controls and Energy MCS, based in Ireland. He has a Master’s of Business Administration degree in Management from Florida International University and a Bachelor’s in Electrical Engineering.

Todd Washburn, Secretary

True Manufacturing - Director of Sales and Marketing, Retail and Display Division

Todd has been with True Manufacturing for over twelve years and currently leads a team of sales and marketing professionals to drive continuous value to True’s ever expanding global customer base. In addition to achieving sales objectives, Todd is responsible for product portfolio expansion and successfully launching new technologies into the commercial refrigeration market. Todd’s engineering background along with eighteen years of refrigeration industry experience, has allowed him to drive value through technology and support True’s leadership position in the industry related to implementing energy efficient technology and environmentally responsible products like natural refrigerants. Todd is a member of True's Leadership Steering Committee, providing leadership, vision, and support to the future of True’s overall organization. Growing up in Maine, Todd developed a passion for the outdoors and enjoys any activity related to water and snow, as well as the occasional relaxing day playing golf. Todd also enjoys traveling with his wife and children. Todd earned his Bachelor of Science degree in Engineering at the University of Maine.


Aaron Daly

Whole Foods Market - Global Energy Coordinator

Aaron Daly is Global Energy Coordinator for Whole Foods Market and is supporting the company’s twelve regional offices in all aspects of energy management. Aaron is working with colleagues to meet the company goal of 25% reduction in per square foot energy usage by the end of 2015 and is developing the Company’s renewable energy portfolio. Prior to working at Whole Foods Market, Aaron was a National Account Manager at PECI, a not-for-profit energy efficiency consulting group based in Portland, OR. At PECI, Aaron worked with retailers such as Supervalu – Albertsons, Trader Joes and others on the development and execution of energy management programs. Aaron is a Certified Energy Manager and holds an MS in energy management from Sonoma State University.

Paul Anderson

H-E-B - Vice President of Design

Paul Anderson serves as the Vice President of Design for H-E-B. Paul has over 20 years of experience in the manufacturing, design, installation and service of commercial and industrial equipment, and a passion for efficient operation of building systems, having held a various positions at multiple Fortune 500 companies, including Target, John Deere, Eaton Corporation and Ingersoll-Rand.  In addition to his current role at H-E-B, Paul also serves as the Chairperson for the North American Sustainable Refrigeration Council (NASRC) and sits on the Food Marketing Institute’s Energy and Store Development committee.  

Paul earned his Bachelor of Science degree in Mechanical Engineering from Iowa State University and an Associates of Applied Science degree in Climate Control Technologies from North Iowa Area Community College.

Tristam Coffin

Whole Foods Market - Sustainable Facilities Coordinator, Northern California Region


Among his responsibilities, Tristam oversees the implementation of environmentally responsible programs and sustainable engineering initiatives for 45 facilities and counting that make up the company’s Northern California Division. Tristam is a LEED Accredited Professional and holds a broad array of environmental expertise in areas including energy/resource management, refrigeration systems, and renewable energy. His design coordination on locations on the east and west coasts have earned Whole Foods Market six EPA GreenChill Platinum Certifications. Tristam’s work on the company’s flagship store at Third and 3rd in Brooklyn, NY secured the store's designation as the first synthetic-free refrigerant supermarket in the U.S. He is also a member of WFM’s Global Green Mission Leadership Team. Prior to being employed by Whole Foods Market, Mr. Coffin worked in alternative energy and transportation for the Transportation Research Center of Vermont as well as in natural sciences and advocacy in Yellowstone National Park, Montana. Mr. Coffin holds a Bachelor’s Degree in Environmental Studies from the University of Vermont.

James McClendon

Walmart Stores Inc. - Director of Energy Efficiency

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James McClendon is Director of Energy Efficiency for Walmart Stores, Inc. Mr. McClendon joined Walmart in 2005 in a leadership position to develop new energy efficient designs and identify retrofit strategies to reduce the total energy consumption in new construction and the existing building portfolio.

Mr. McClendon leads a team in response to Walmart’s publicly stated goal to reduce their GHG emissions in alignment with the Paris accord. Components of this goal include installing 7 Billion kW of renewable energy and reducing their building energy intensity footprint (in kWh/sq-ft) by 20% which encompasses over 750 million square feet of existing buildings. Efforts towards this goal have led to many new industry developments including LED lighting, refrigeration system technologies and cooling applications.

Prior to joining Walmart, Mr. McClendon accumulated over 20 years of experience in the HVAC/R industry in both owning and managing companies from service & contracting to design & engineering. He has worked in the commercial, industrial, institutional and governmental sectors representing the contractor, designer, supplier and owner perspectives.

Mr. McClendon is a registered Mechanical Engineer, as well as a CEM, CEA, IPMVP, LEED, & NEBB.

Eduardo Navarro

Hillphoenix - Vice President & General Manager, Systems Division

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Eduardo Navarro de Andrade is currently the Vice President and General Manager of Hillphoenix Systems division, based in Conyers, GA.  Eduardo has a Bachelor of Science in Mechanical Engineering from the Universidade Catolica de Petropolis, in Rio de Janeiro, Brazil, a Master of Science in Mechanical Engineering from Purdue University and a Master of Business Administration from Syracuse University.  Eduardo has over 20 years of professional experience in the refrigeration industry, having held a wide variety of U.S. and international roles in engineering, program management, marketing, operations, business development and general management.  

Keilly witman

KW Refrigerant Management Strategy - Owner

Keilly Witman is the owner of KW Refrigerant Management Strategy, a consulting firm that helps the supermarket industry manage the many strategic challenges of today’s and tomorrow’s refrigeration world. Prior to starting her own firm, she single-handedly ran the EPA’s GreenChill Partnership, which grew to encompass over 8,500 supermarkets nationally during her tenure. Keilly has held over 50 webinars on refrigeration and refrigerant management, co-authored best practice guidelines for refrigerant leak prevention and repair, installation leak tightness, and R-22 retrofits, written dozens of articles on current topics in refrigerant management, and developed tools to help supermarkets calculate the financial and environmental impact of their refrigerant emissions. In 2010, she was named one of the industry's 50 most influential people by Supermarket News. Keilly has a Law Degree and a Master’s in Environmental Policy from Vermont Law School.

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Steve MacWilliams

Carter Group International - Executive Vice President

Steve has over 27 years of sales management and business development experience in the Refrigeration, HVAC and Software industries.  He was previously the VP of Sales and Business Development at Groom Energy Solutions and spent 14 years at Source Refrigeration as its VP of Sales and Business Development.

Steve worked closely with Supermarket leaders focusing on industry changing initiatives and energy programs.  Steve attended the University of Phoenix with a focus in International Business and Marketing. He is an active member of FMI and ASHRAE. He is also a co-founder and active Board Member of both TrackerPlex LLC and Forty34 LLC.


Clay Rohrer

Micro Thermo / Parker Hannifin - Business Unit Manager

Clay Rohrer is the Business Unit Manager in the US for Electronics. He has a BSME from the University of Missouri Science and Technology. Clay has over 16 years of refrigeration experience ranging from R&D, Innovation, Design, and Business Management.  His experience with advanced refrigerants and technologies stem from developing natural refrigerant refrigeration systems and cases, control optimization for natural refrigerants, and business leadership for natural refrigerant progression.    He has worked for Parker Hannifin for the last five years, and 11 years with a large refrigeration OEM prior that.

Peter Narreau


BITZER North America – President

Peter has been with BITZER since 2005 and as President of BITZER’s North and Central American Operations since 2007.  Peter was previously the GM of Carrier’s Carlyle Compressor Stone Mountain Division.  He holds a BSME degree from the Rochester Institute of Technology and an MBA from the University of Rochester Simon School. Peter has over 25 years of professional experience in the refrigeration and air conditioning industry with roles in engineering, sales, marketing, operations, and general management.  Having been involved in the transition period of CFC’s to HCFC’s and HCFC’s to HFC’s he is now excited for the next step to deliver the truly sustainable solution.