Building Mechanical Design


Edmonton, AB




The Mosaic Centre is a net-zero commercial building on the south-side of Edmonton. The building was envisioned as being a new sustainable methodology for commercial developments, focusing on occupant comfort, attractiveness, energy efficiency, flexible use, repeatability, and constructability.

The project was collaboratively designed using the IPD (integrated project delivery) method. IPD is a rethink on traditional building design/construction processes that puts architects, engineers, and contractors at the table throughout the design and construction periods.

The Mosaic Centre is the earth's northernmost net-zero energy commercial building. The building is LEED Platinum certified and is designed and constructed using Passive House and Living Building Challenge concepts.

Clark Engineering was retained as mechanical engineer of record for the building and was challenged to work with all partners to envision a cutting-edge, uber energy-efficient mechanical system that was cost effective, practical, and constructible (thank you to Priority Mechanical).


  • 213 kW rooftop photovoltaic panel power station
  • 32 geothermal heat energy exchange wells to reject / recover building heat
  • Water source VRF (variable refrigerant flow) comfort systems to transfer space heat about the building and to the ground
  • Heat recovery ventilation for building breathing and energy recovery during the process
  • Rainwater storage for veggie garden drip irrigation

The Mosaic Centre has been in operation in Summerside since 2016.