How I met the (sometimes conflicting) design requirements of the project
- by using bifacial modules I was able to deal with space restrictions while still maintaining good energy output
- since the SOR called for both green roofing and solar PV to take up 50% roof space, I went with a solar canopy design which allows green roofing to be placed underneath. This opened up the space to multiple uses besides power generation or green roofing. It also fulfilled the Zibi requirement of habitable rooftops and providing an outdoor recreational area.
- structures already on the rooftop (stairwells and a gym) obstructed the path I would have chosen for my solar array. I therefore worked with the new building design team to come up with a solution that incorporated both design visions.
3D Model of System
Design Requirements Details
SOR
10% of energy demand
30-50% of the available roof space will be occupied by solar panels
Solar panels will have at least a 17% efficiency
Zibi Masterplan
“Include habitable roof tops and light coloured roofing to help reduce heating and cooling loads, address ‘urban heat island’ effects, and provide workers a significant private outdoor amenity area.” (p.162)
Physical constraints of building
roof space limited to ~600 m2.
gym in the center and stairwells on either side of building limit possible PV array configurations
Integration with other projects
provide hourly power output estimates for use in resident DSM
route portion of array to DC microgrid
ensure equitable use of roof space with green roofing, and equipment from other projects i.e. HVAC