Our Team

Our team has a diverse range of experience: from helping facility owners lower their energy bills and increase the value of their properties; to crafting municipal sustainability and energy policy; to guiding transit operators in switching to electric vehicles. Our staff have a strong record of environmental least-impact decision making and community engagement, both personally and professionally.

We work collaboratively with our network of peers to tackle almost any project in any location.



Kiefer MacKenzie

P.Eng, M.Eng., G.Dip., B.E.Sc., LEED AP BD+C & ID+C & O+M

Kiefer is a professional engineer who is passionate about improving the quality and user experience of the built environment. He has over seven years of experience in the sustainability / energy industry, having worked for a number of leading engineering consultancies as well as the City of Calgary. His focus’ have been in policy and program development, transportation fuel switching, renewable energy generation, green buildings, and municipal service.

He has worked on 60+ sustainability projects to date: from greening the facility portfolios of organizations to guiding and managing the delivery of green municipal infrastructure. During his time at the City of Calgary Kiefer played a key role in developing the City’s new Sustainable Building Policy (approved by Council in 2019) and contributed to more sustainable outcomes across nearly all aspects of infrastructure delivery.



University of Waterloo
• Master of Engineering
• Graduate Diploma - Green Energy

The University of Western Ontario
• Bachelor of Engineering Science


Professional Engineer
• PEO (Ontario)
• APEGA (Alberta)

LEED Accredited Professional
• Interior Design + Construction Specialty
• Building Operations + Maintenance Specialty
• Building Design + Construction Specialty



Irene Chung

C.E.T., LEED AP BD+C & O+M, WELL AP, Fitwel Ambassador

Irene has five years of experience across 50+ sustainability projects, including commercial, residential, hospitality, educational, institutional, recreational, and modular buildings. She has a 100% success rate achieving or exceeding the targeted LEED certification level of the applications she has submitted over the years.

Her work, covering both environmental sustainability and healthy building targets, has included producing strategies tailored to meet client goals in a cost-effective manner, policies for existing buildings, project specifications, and energy measurement and verification plans. She also monitors, verifies and reports on building performance by reviewing data from utility bills, sub-meters, and building automation systems.


Southern Alberta Institute of Technology
• Civil Engineering Technology


Certified Engineering Technologist
• OACETT (Ontario)

WELL Accredited Professional

LEED Accredited Professional
• Building Operations + Maintenance Specialty
• Building Design + Construction Specialty

Fitwel Ambassador