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Chicago, IL

Ruairi Barnwell



  • Energy Services
  • Engineering
  • Principal
Ruairi Barnwell
  • Principal

Ruairi leads the Building Optimization enterprise within the firm. In this role, he is responsible for growing Building Optimization as a distinct DLR Group service area while contributing his expertise in high performance building design to benefit clients in the firm's core market sectors. 

Ruairi is a respected high-performance building design expert. His aim is to elevate the built environment and restore order to the climate for future generations. He specializes in commissioning services for new and existing buildings, building energy assessments, high performance building design, energy modeling/advanced building simulation, and measurement and verification consulting. 

Born and raised in Ireland, Ruairi earned an honors degree in Building Services Engineering from the Dublin Institute of Technology, Ireland's leading sustainable building engineering program. 

"My ideas come to me in the air. Whether it's the free peanuts or simply having one or two hours without the phone ringing or buzzing with new messages, I can't say. But when I am on a plane I always have my iPad on hand to take notes from the brainstorms I have in-flight."