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In 1998, ÉTS embarked on an energy retrofit pilot and replication project of 68 percent of its facilities with financial assistance from the EII to increase its energy efficiency by approximately 25 percent. The pilot project was implemented at the Henri Julien building and later replicated in the Notre-Dame building, garages and residences. Over the course of the two project components, several systems received comprehensive retrofits. A centralized Metasys® building management system was installed to control building operations. In addition, the HVAC, water heater, lighting and emergency systems were integrated into the centralized system. The building management system alone helped reduce the school's energy consumption by about 10 percent and also reduced related demand charges by a similar 10 percent. Efficient T-8 lamps replaced existing lights and occupancy and motion sensors were installed in order to shut down lighting in areas unoccupied for more than 15 minutes. Variable air volume systems, installed on the ground and first floors, and upgrades to the building envelope minimized heat gain and loss. To date, the retrofits have helped to save an average of $236,213 per year.
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