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Installations

JMSB building-integrated BIPV/T system

An NSERC Solar Buildings RESEARCH NETWORK demonstration project. Funded by TEAM Demonstration Program of NRCan through CanmetENERGY Varennes.


Street view of JMSB solar system Street view of JMSB building building-integrated photovoltaic/thermal facade
Close-up of JMSB solar system Close-up of JMSB building building-integrated photovoltaic/thermal facade

The John Molson School of Business (JMSB) building-integrated photovoltaic/thermal (BIPV/T) system is the first such system fully integrated with the building envelope, the HVAC system and the architecture of the building. The system consists of:

  1. Customphotovoltaic panels, integrated on an Unglazed Transpired Collector (UTC) - a dark corrugated porous cladding
  2. Unglazed Transpired Collector (UTC) - dark corrugated porous cladding through which fresh air is drawn into an insulated cavity (plenum) and then into the building as preheated ventilation air during the heating season.

The BIPV/T façade is close to south-facing and directly in front of the building mechanical room, making this an optimal system because ducting length required to connect to the fresh air system is reduced. The 288 m² system generates solar electricity (up to 25 kilowatts) and solar heat (up to 75 kW of ventilation fresh air heating). A variable speed fan draws solar-heated air through the pores of the UTC cladding which account for a porosity of about 1%. At night, heat loss from the building is also partially recovered by the air plenum. Dark-framed PV modules are mounted directly against the UTC cladding, covering about 70% of the total surface. In addition to the electricity generation, heat is actively drawn from the back of the PV modules and the exposed UTC, contributing to heating the ventilation air, while cooling the panels. The system is currently being continuously monitored and peak combined solar energy utilization efficiencies of up to 55% have been measured.

This is essentially a living lab facility that will help educate the public, industry and our students.


Concept schematic for BIPV/T system
Concept schematic for BIPV/T system
Attachment of PV modules, and airflow paths around the bottom frame of a PV module and into the transpired collector
Attachment of PV modules, and airflow paths around the bottom frame of a PV module and into the transpired collector
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