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  • AASHE-STARS

The Sustainability Tracking, Assessment & Rating System™ (STARS) is a transparent, self-reporting framework for colleges and universities to measure their sustainability performance.

Overall Rating Silver
Overall Score 45.51
Liaison Mat Thijssen
Submission Date Nov. 6, 2018
Executive Letter Download

STARS v2.1

University of Waterloo
OP-1: Greenhouse Gas Emissions

Status Score Responsible Party
Complete 5.07 / 10.00 Mat Thijssen
Sustainability Manager
Sustainability Office
"---" indicates that no data was submitted for this field

Has the institution conducted a GHG emissions inventory that includes all Scope 1 and 2 emissions? :
Yes

Does the institution’s GHG emissions inventory include all, some or none of its Scope 3 GHG emissions from the following categories?:
All, Some, or None
Business travel Some
Commuting None
Purchased goods and services None
Capital goods None
Waste generated in operations All
Fuel- and energy-related activities not included in Scope 1 or Scope 2 All
Other categories None

A copy of the most recent GHG emissions inventory:
A brief description of the methodology and/or tool used to complete the GHG emissions inventory, including how the institution accounted for each category of Scope 3 emissions reported above:

The University of Waterloo uses the following methodology to develop its emissions inventory:
Scope 1:
o Natural Gas: Waterloo calculates natural gas emissions by summing all monthly consumption from invoices for all campuses from fuel service providers, and multiplying the number of total metres cubed of natural gas by the emissions factors listed for Ontario as part of Canada’s annual National Inventory Report to the UNFCCC (1.898311 kgCO2-e per cubic metre of natural gas)
o Fleet fuel: Waterloo calculates fleet fuel use using a total volume of all delivered fuel to the campus from fuel service providers, and multiplying the total number of litres by emissions factors listed as part of Canada’s annual National Inventory Report to the UNFCCC based on fuel type (Diesel = 2.740728 kgCO2-e per liter; Gasoline = 2.316750 kgCO2-e per liter)
Scope 2:
o Electricity: Waterloo calculates electricity emissions by summing all monthly consumption data from invoices for all campuses from local electricity distributors, and multiplying the total electricity consumption by emission factors as listed for Ontario as part of Canada’s annual National Inventory Report to the UNFCCC (0.036 kgCO2-e per kWh). It should be noted that Ontario reports trued emission factors for the period three years previous, and an estimate for the period two years previous. Waterloo extrapolates the estimate (in this case for 2016) onto its annual reporting for the previous year and adjusts as necessary in future years.
Scope 3:
o Business travel: Waterloo includes mileage claims paid out for University employees within its emissions calculations. These are calculated using the data collected through Waterloo’s expense claim system and dividing by the designated mileage claim of $0.45 per kilometer. The total annual kilometer rate is then multiplied by emissions factors provided by Sustainable Waterloo Region for an unknown vehicle type (0.21378kgCO2-e per km).
o Transmission and Distribution Emissions: Waterloo calculates emissions from transmission and distribution losses by taking the difference between consumption and generation emission factors and multiplying it by total annual energy consumption. As with electricity emissions, Ontario provides an estimate for two years previous, which Waterloo extrapolates onto its performance year (0.004 kgCO2-e per kWh)
o Waste: Waterloo collects annual tonnage of waste sent to landfill from its waste haulers, and multiplies the total by waste emission factors calculated by the Region of Waterloo based on a previous study of the local landfill. (0.19 kgCO2-e per kilogram of waste)


Has the GHG emissions inventory been validated internally by personnel who are independent of the GHG accounting and reporting process and/or verified by an independent, external third party?:
No

A brief description of the internal and/or external verification process:

Waterloo was required to validate its Scope 1 emissions from stationary combustion as a capped participant in Ontario’s Cap-and-Trade program. However, this is done at a site level and thus excludes smaller campus locations and satellite facilities beyond the main/south campus. It only covers emissions from Stationary Combustion. Waterloo also uploads its data to the Sustainability Tracking Tool developed by Sustainable Waterloo Region to validate that calculations are comparable to those developed internally. The full inventory has not been externally validated.


Documentation to support the internal and/or external verification process:
---

Does the institution wish to pursue Part 2 and Part 3 of this credit? (reductions in Scope 1 and Scope 2 GHG emissions):
Yes

Gross Scope 1 and Scope 2 GHG emissions:
Performance Year Baseline Year
Gross Scope 1 GHG emissions from stationary combustion 34,293.12 Metric Tons of CO2 Equivalent 25,337.62 Metric Tons of CO2 Equivalent
Gross Scope 1 GHG emissions from other sources 492.58 Metric Tons of CO2 Equivalent 508.47 Metric Tons of CO2 Equivalent
Gross Scope 2 GHG emissions from purchased electricity 4,709.64 Metric Tons of CO2 Equivalent 12,864.83 Metric Tons of CO2 Equivalent
Gross Scope 2 GHG emissions from other sources 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Total 39,495.34 Metric Tons of CO2 Equivalent 38,710.92 Metric Tons of CO2 Equivalent

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Year Jan. 1, 2017 Dec. 31, 2017
Baseline Year Jan. 1, 2010 Dec. 31, 2010

A brief description of when and why the GHG emissions baseline was adopted (e.g. in sustainability plans and policies or in the context of other reporting obligations):
---

Figures needed to determine total carbon offsets:
Performance Year Baseline Year
Third-party verified carbon offsets purchased (exclude purchased RECs/GOs) 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Institution-catalyzed carbon offsets generated 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Carbon sequestration due to land that the institution manages specifically for sequestration 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Carbon storage from on-site composting 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Carbon offsets included above for which the emissions reductions have been sold or transferred by the institution 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Net carbon offsets 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent

A brief description of the offsets in each category reported above, including vendor, project source, verification program and contract timeframes (as applicable):
---

Emissions reductions attributable to Renewable Energy Certificate (REC) or Guarantee of Origin (GO) purchases:
Performance Year Baseline Year
Emissions reductions attributable to REC/GO purchases 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent

A brief description of the purchased RECs/GOs including vendor, project source and verification program:
---

Adjusted net Scope 1 and 2 GHG emissions:
Performance Year Baseline Year
Adjusted net Scope 1 and 2 GHG emissions 39,495.34 Metric Tons of CO2 Equivalent 38,710.92 Metric Tons of CO2 Equivalent

Figures needed to determine “Weighted Campus Users”:
Performance Year Baseline Year
Number of students resident on-site 5,543 5,172
Number of employees resident on-site 0 0
Number of other individuals resident on-site and/or staffed hospital beds 0 0
Total full-time equivalent student enrollment 35,156 29,539
Full-time equivalent of employees (staff + faculty) 5,874 4,969
Full-time equivalent of students enrolled exclusively in distance education 1,007 485
Weighted campus users 31,403 26,810.25

Adjusted net Scope 1 and 2 GHG emissions per weighted campus user:
Performance Year Baseline Year
Adjusted net Scope 1 and 2 GHG emissions per weighted campus user 1.26 Metric Tons of CO2 Equivalent 1.44 Metric Tons of CO2 Equivalent

Percentage reduction in adjusted net Scope 1 and Scope 2 GHG emissions per weighted campus user from baseline:
12.90

Gross floor area of building space, performance year:
8,399,499.09 Gross Square Feet

Floor area of energy intensive building space, performance year:
Floor Area
Laboratory space 1,072,882 Square Feet
Healthcare space 42,904.95 Square Feet
Other energy intensive space 688,696.52 Square Feet

EUI-adjusted floor area, performance year:
11,319,764.63 Gross Square Feet

Adjusted net Scope 1 and 2 GHG emissions per unit of EUI-adjusted floor area, performance year:
0 MtCO2e / GSF

Scope 3 GHG emissions, performance year:
Emissions
Business travel 246.10 Metric Tons of CO2 Equivalent
Commuting ---
Purchased goods and services ---
Capital goods ---
Fuel- and energy-related activities not included in Scope 1 or Scope 2 523.29 Metric Tons of CO2 Equivalent
Waste generated in operations 614.02 Metric Tons of CO2 Equivalent
Other categories ---

A brief description of the institution’s GHG emissions reduction initiatives, including efforts made during the previous three years:
---

The website URL where information about the programs or initiatives is available:
---

Additional documentation to support the submission:
---

NOTE: The uploaded inventory above is based on the 2016 Environmental Sustainability Report, which is the most recent public document available. The 2018 Report (with activity from 2017 calendar year) will contain updated information, which is included here below using this methodology, but there is no public document.

There has been a decrease in emissions from electricity because of substantial changes to Ontario’s electricity grid. Specifically, the province has phased out coal power over the past decade, dropping significantly the emissions intensity of grid-purchased electricity. As per the methodology noted above, the majority of the change in electricity emissions between the base and performance years can be attributed to these changes, and not to efficiency and/or demand reduction.

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 and complete the Data Inquiry Form.