| Overall Rating | Gold |
|---|---|
| Overall Score | 78.59 |
| Liaison | Beverley Ayeni |
| Submission Date | March 1, 2024 |
University of Toronto Mississauga
OP-5: Building Energy Efficiency
| Status | Score | Responsible Party |
|---|---|---|
|
4.22 / 6.00 |
Minali
Giani Sustainability Intern Facilities Management and Planning |
"---"
indicates that no data was submitted for this field
Part 1. Site energy use per unit of floor area
Performance year energy consumption
| kWh | MMBtu | |
| Imported electricity | 39,961,837.31 Kilowatt-hours | 136,349.79 MMBtu |
| Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 19,492.11 Kilowatt-hours | 66.51 MMBtu |
Stationary fuels and thermal energy, performance year (report MMBtu):
| MMBtu | |
| Stationary fuels used on-site to generate electricity and/or thermal energy | 187,312 MMBtu |
| Imported steam, hot water, and/or chilled water | 0 MMBtu |
Total site energy consumption, performance year:
323,728.30
MMBtu
Performance year building space
219,056.15
Gross square meters
Floor area of energy intensive space, performance year:
| Floor area | |
| Laboratory space | 17,737.74 Square meters |
| Healthcare space | 422.27 Square meters |
| Other energy intensive space | 3,797.94 Square meters |
EUI-adjusted floor area, performance year:
259,174
Gross square meters
Performance year heating and cooling degree days
| Degree days | |
| Heating degree days | 3,534.30 Degree-Days (°C) |
| Cooling degree days | 431.20 Degree-Days (°C) |
Total degree days, performance year:
3,965.50
Degree-Days (°C)
Performance period
| Start date | End date | |
| Performance period | Jan. 1, 2022 | Dec. 31, 2022 |
Metric used in scoring for Part 1
97.22
Btu / GSM / Degree-Day (°C)
Part 2. Reduction in source energy use per unit of floor area
Baseline year energy consumption
STARS 2.2 requires electricity data in kilowatt-hours (kWh). If a baseline has already been established in a previous version of STARS and the institution wishes to continue using it, the electricity data must be re-entered in kWh. To convert existing electricity figures from MMBtu to kWh, simply multiply by 293.07107 MMBtu/kWh.
| kWh | MMBtu | |
| Imported electricity | 31,065,741 Kilowatt-hours | 105,996.31 MMBtu |
| Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 0 Kilowatt-hours | 0 MMBtu |
Stationary fuels and thermal energy, baseline year (report MMBtu):
| MMBtu | |
| Stationary fuels used on-site to generate electricity and/or thermal energy | 160,017.71 MMBtu |
| Imported steam, hot water, and/or chilled water | 0 MMBtu |
Total site energy consumption, baseline year:
266,014.02
MMBtu
Baseline year building space
126,430.76
Gross square meters
Baseline period
| Start date | End date | |
| Baseline period | Jan. 1, 2005 | Dec. 31, 2005 |
A brief description of when and why the energy consumption baseline was adopted:
2005 was selected as the GHG emissions baseline year as this is the earliest year for which reliable data is available.
Source energy
2
Total energy consumption per unit of floor area:
| Site energy | Source energy | |
| Performance year | 1.48 MMBtu per square meter | 2.10 MMBtu per square meter |
| Baseline year | 2.10 MMBtu per square meter | 2.94 MMBtu per square meter |
Metric used in scoring for Part 2
28.62
Optional Fields
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A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:
Through the Sustainability Office’s Sustainable Change Office Program there’s a section on the webform dedicated to energy conservation and efficiency for staff and faculty to implement at work. However, these actions can be applied at home as well.
Additionally, the Sustainability Office conducted campus wide energy audits which resulted in 240 energy conservation measures to be taken over the next few decades. The audits have been shared widely with the campus community to communicate UTM’s efforts to conserve energy. Lastly, energy is a main theme in UTM’s Climate Positive Plan where the framework is categorized by how we “Consume”, “Distribute” and “Produce” energy.
Additionally, the Sustainability Office conducted campus wide energy audits which resulted in 240 energy conservation measures to be taken over the next few decades. The audits have been shared widely with the campus community to communicate UTM’s efforts to conserve energy. Lastly, energy is a main theme in UTM’s Climate Positive Plan where the framework is categorized by how we “Consume”, “Distribute” and “Produce” energy.
A brief description of energy use standards and controls employed by the institution:
Many of UTM's newer buildings use occupancy sensors to ensure that lighting is turned off in unoccupied areas. Occupancy sensors are installed in areas such as classrooms, offices, and hallways. Some areas also have daylight sensors that turn off artificial lighting when natural light is sufficient.
The campus has a large number of sub-meters that track energy use in individual buildings. Data from these meters is fed into a central system that displays electricity, gas, and water use for each building. Tracking energy use in the system allows spikes in energy use to be flagged and issues to be rectified quickly.
The campus has a large number of sub-meters that track energy use in individual buildings. Data from these meters is fed into a central system that displays electricity, gas, and water use for each building. Tracking energy use in the system allows spikes in energy use to be flagged and issues to be rectified quickly.
A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
UTM has undertaken numerous lighting retrofits over several years to ensure that lighting uses the least amount of energy possible. Several buildings, including the Instructional Building, Innovation Complex, Health Sciences Complex, Deerfield Hall, and Maanjiwe nendamowinan were constructed using mostly or entirely LED lighting.
We have retrofitted existing campus buildings to LED as budgets have allowed. Buildings that have been renovated to date include the William G Davis Building, Communication, Culture, & Technology Building, Erindale Studio Theatre, Student Centre, Recreation, Athletics & Wellness Centre, and Central Utilities Plant.
In April 2023, UTM completed a lighting retrofit project for the P8 parking deck located in the north-east corner of campus. P8 can accommodate 555 vehicles including 6 barrier free spots, 6 EV dual-chargers capable of charging 12 vehicles, and 19 carpool spots. Lighting in this deck consisted of 150W pulse start metal halide (MH) fixtures that were old and less efficient. Additionally, these fixtures were past their life expectancy and finding replacements was becoming a challenge. The Parking deck underwent an LED lighting retrofit to upgrade all the lighting in the area. The immediate results were significant, as the new LED lighting is distributed very evenly and makes the parking lot sufficiently brighter. This retrofit also results in energy consumption reduction, the new LED lights are more efficient than the MH lights, which will lead to an anticipated $80,000 of electricity savings over 10 years. Lastly, this retrofit project will save UTM money on maintenance and replacements costs, where the MH bulbs had to be replaced every 2-3 years, the LED lights will only need to be replaced every 5-10 years, based on current usage.
We have retrofitted existing campus buildings to LED as budgets have allowed. Buildings that have been renovated to date include the William G Davis Building, Communication, Culture, & Technology Building, Erindale Studio Theatre, Student Centre, Recreation, Athletics & Wellness Centre, and Central Utilities Plant.
In April 2023, UTM completed a lighting retrofit project for the P8 parking deck located in the north-east corner of campus. P8 can accommodate 555 vehicles including 6 barrier free spots, 6 EV dual-chargers capable of charging 12 vehicles, and 19 carpool spots. Lighting in this deck consisted of 150W pulse start metal halide (MH) fixtures that were old and less efficient. Additionally, these fixtures were past their life expectancy and finding replacements was becoming a challenge. The Parking deck underwent an LED lighting retrofit to upgrade all the lighting in the area. The immediate results were significant, as the new LED lighting is distributed very evenly and makes the parking lot sufficiently brighter. This retrofit also results in energy consumption reduction, the new LED lights are more efficient than the MH lights, which will lead to an anticipated $80,000 of electricity savings over 10 years. Lastly, this retrofit project will save UTM money on maintenance and replacements costs, where the MH bulbs had to be replaced every 2-3 years, the LED lights will only need to be replaced every 5-10 years, based on current usage.
A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
The Instructional Building at UTM is 100% heated and cooled by a ground-source heat pump (geothermal) system. The geothermal field, which is underneath the sports field adjacent to the building, consists of 177 boreholes at 168 meters deep each. The geothermal system ensures the LEED silver certified building stays cool in the summer, and warm in the winter. The building does not use natural gas.
A solar thermal system was installed on the rooftop of the Recreation, Athletics, and Wellness Centre in the summer of 2019. The system uses evacuated tube collectors to pre-heat water for the boilers, which provide both space heating and water heating for showers and the swimming pool. An HVAC retrofit to more efficient equipment took place alongside the solar installation.
The LEED gold certified Terrence Donnelly Health Sciences Complex has a high number of windows to provide abundant natural light to the building. These windows are high-performance windows that are argon-filled and have a special coating that allows natural light to pass through, but blocks heat from escaping the building.
White roofs have been installed on many buildings at UTM. Whenever an end-of-life roof needs replacing, a white rock ballast is used as a matter of practice. These high-albedo roofs reflect heat instead of absorbing it, reducing the need for air conditioning in the summer and mitigating the urban heat island effect.
A solar thermal system was installed on the rooftop of the Recreation, Athletics, and Wellness Centre in the summer of 2019. The system uses evacuated tube collectors to pre-heat water for the boilers, which provide both space heating and water heating for showers and the swimming pool. An HVAC retrofit to more efficient equipment took place alongside the solar installation.
The LEED gold certified Terrence Donnelly Health Sciences Complex has a high number of windows to provide abundant natural light to the building. These windows are high-performance windows that are argon-filled and have a special coating that allows natural light to pass through, but blocks heat from escaping the building.
White roofs have been installed on many buildings at UTM. Whenever an end-of-life roof needs replacing, a white rock ballast is used as a matter of practice. These high-albedo roofs reflect heat instead of absorbing it, reducing the need for air conditioning in the summer and mitigating the urban heat island effect.
A brief description of co-generation employed by the institution:
n/a - we do not use co-gen at the moment
A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
UTM has replaced old, energy-inefficient fume hoods with new, low-flow fume hoods in the William G Davis Building. Fume hoods are huge energy users, with each one using about 3 times more energy annually than a house. These upgrades resulted in significantly less energy use by these fume hoods, by decreasing the amount of air exhausted from the hood when they are not in use.
In 2016, the University of Toronto Mississauga undertook a project to drastically reduce the amount of energy used in laboratory spaces. Under normal conditions, lab spaces undergo 8 or more air changes per hour, where air is exhausted from the lab and replaced with fresh air from outdoors. In addition to the energy needed to run the fans, all of this air needs to be heated, cooled, humidified, or dehumidified to keep the space at a temperature which is comfortable for occupants and appropriate for research. This is one of main the contributors to labs’ extremely high energy intensity. UTM has installed systems that monitor the air quality in labs, and are able to automatically adjust for the optimal level of airflow. This has allowed UTM to reduce the number of air changes per hour when the space is unoccupied to 4 or fewer air changes per hour. This results in significant savings, particularly on nights and weekends when research is not taking place. Implementation of this type of system typically results in energy savings of 40-60%, with commensurate reductions in greenhouse gas pollution.
The old, inefficient chiller at Oscar Peterson Hall residence was replaced with a much more energy-efficient model. The new chiller will provide the same level of comfort for residents with a much lower energy consumption.
HVAC upgrades -as part of the government of Ontario's Greenhouse Gas Reduction Program, UTM undertook several projects to upgrade heating, ventilation, and air conditioning systems in multiple buildings. This included replacing rooftop units, upgrading fans to variable frequency drives, and various other energy-saving retrofits.
In 2016, the University of Toronto Mississauga undertook a project to drastically reduce the amount of energy used in laboratory spaces. Under normal conditions, lab spaces undergo 8 or more air changes per hour, where air is exhausted from the lab and replaced with fresh air from outdoors. In addition to the energy needed to run the fans, all of this air needs to be heated, cooled, humidified, or dehumidified to keep the space at a temperature which is comfortable for occupants and appropriate for research. This is one of main the contributors to labs’ extremely high energy intensity. UTM has installed systems that monitor the air quality in labs, and are able to automatically adjust for the optimal level of airflow. This has allowed UTM to reduce the number of air changes per hour when the space is unoccupied to 4 or fewer air changes per hour. This results in significant savings, particularly on nights and weekends when research is not taking place. Implementation of this type of system typically results in energy savings of 40-60%, with commensurate reductions in greenhouse gas pollution.
The old, inefficient chiller at Oscar Peterson Hall residence was replaced with a much more energy-efficient model. The new chiller will provide the same level of comfort for residents with a much lower energy consumption.
HVAC upgrades -as part of the government of Ontario's Greenhouse Gas Reduction Program, UTM undertook several projects to upgrade heating, ventilation, and air conditioning systems in multiple buildings. This included replacing rooftop units, upgrading fans to variable frequency drives, and various other energy-saving retrofits.
Website URL where information about the institution’s energy conservation and efficiency program is available:
Additional documentation to support the submission:
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Data source(s) and notes about the submission:
Conversion from m3 of natural gas to BTU was done using the conversion factors given here: https://www.uniongas.com/business/save-money-and-energy/analyze-your-energy/energy-insights-information/conversion-factors
The information presented here is self-reported. While AASHE staff review portions of all STARS reports and institutions are welcome to seek additional forms of review, the data in STARS reports are not verified by AASHE. If you believe any of this information is erroneous or inconsistent with credit criteria, please review the process for inquiring about the information reported by an institution or simply email your inquiry to stars@aashe.org.