Most students are unaware of the University of Ottawa’s history with making campus buildings more sustainable because it was before our time. I certainly knew only the minimum before working with the Office of Campus Sustainability.    Our first attempt at making a sustainable building was the SITE building built between 1997 and 1999. SITE won many awards prior to construction in anticipation for what was planned. Unfortunately, once the building was built, it failed to be as sustainable as promised. What made this attempt a failure is that the building utilized a lot of energy. A deep energy retrofit, also known as DER, was done between 2012 to 2014 to correct some of the problems with the building. However, the giant south-facing six story atrium (essentially a giant wall of windows) continues to cause pretty significant draws on air conditioning and heating, thus using a lot more energy than what was originally produced in the building design.   To avoid any futu...

It might be strange to think about this but often the most influential and impactful technology on campus tends to be older technology, especially when it comes to environmental sustainability. I was recently asked to speak at a course about Technology, Society, and the Environment. The idea behind inviting me was to speak to the group about how campus sustainability has been helped along by technology. I thought that I might share this list with you too so you could learn a bit about the new, the old, the unconventional, and the interesting technologies that helped shaped our campus over the past few years. The Living Wall One of the most popular pieces of technology is the University of Ottawa's living wall. In fact, the wall is not just a pretty assortment of 1500 plants, it is a biofilter which is being used to help filter the air inside the FSS Building. The wall helps cleanse 80-85% of the volatile compounds in the air  and it was also instrumental in helping soli...

Our wall! What in the world happening to our beautiful living wall?! A couple of months ago the maintenance team started noticing plants dying off and so the detective work began to try and solve the mystery of the dying wall. Here’s a look at the factors which contributed to our beloved wall’s shabby appearance. Lights. Unlike the sun, the energy emitted by light bulbs slowly degrades over time. This degradation which occurred at a rate faster than anticipated means that although the lights were on for 8 hours a day the concentration of light was too low for plants to sustain metabolic activity. This degradation coupled with a sensor failure led to the current situation. A system of sensors is in place to monitor the environmental conditions of the living wall, however when this system fails it can be difficult to determine what the root cause of the problem is as was the case this past summer.  The living wall is a massive six storey high hydroponic system instal...