Free Cooling Fundamentals for Data Centers

On Demand

This webinar is approved for 1 AIA Learning Unit (LU) for Continuing Education.







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Increasing your data center’s efficiency could be as easy as letting in some fresh air or employing other free cooling methods. Free cooling provided by an economizer system can supplement your current practices by reducing the amount of work shouldered by CRAC units and other equipment, but not every climate is a good candidate. Could your facility be a good fit?


Learning Objectives
  • Understand the different types of economizers.
  • Learn how free cooling contributes to energy efficiency and acceptable temperatures in data centers.
  • See best practices for year-round economizer operation.
  • Weigh the benefits of economizers with the potential drawbacks.



Charles B. Kensky, PE
Executive Vice President
Bala Consulting Engineers
​LEED Accredited Professional BD+C
Certified Energy Auditor (CEA)


Charles Kensky is Executive Vice President at Bala Consulting Engineers.  He has over twenty years of experience in project management, and HVAC engineering design for numerous Data Centers, including mission critical facilities for global business leaders Hewlett Packard, Bristol-Myers Squibb, and many financial firms.  Chuck is a LEED Accredited Professional, and has been involved with the U.S. Green Building Council since the pilot phase in the late 1990s.

Chuck has presented nationally and locally on Data Center and green building design to numerous institutions, as well as professional and trade organizations.  He has published many articles in engineering trade magazines on topics including data center design, green building design, and HVAC system design.  Chuck holds a B.S. in Mechanical Engineering from Pennsylvania State University.  He is a licensed in engineer in Pennsylvania, Indiana, Connecticut and Wisconsin.