Overall Rating	Gold
Overall Score	68.36
Liaison	Patricia Huynh
Submission Date	Dec. 10, 2024

STARS v2.2

University of Waterloo
OP-5: Building Energy Efficiency

Status	Score	Responsible Party
	3.08 / 6.00	Mat Thijssen Sustainability Manager Sustainability Office

"---" indicates that no data was submitted for this field

Part 1. Site energy use per unit of floor area

Performance year energy consumption

Electricity use, performance year (report kilowatt-hours):

	kWh	MMBtu
Imported electricity	130,110,042 Kilowatt-hours	443,935.46 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems)	55,000 Kilowatt-hours	187.66 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):

	MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy	573,695 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, performance year:

1,017,818.12 MMBtu

Performance year building space

Gross floor area of building space, performance year:

804,175 Gross square meters

Floor area of energy intensive space, performance year:

	Floor area
Laboratory space	87,325 Square meters
Healthcare space	4,199 Square meters
Other energy intensive space	68,284 Square meters

EUI-adjusted floor area, performance year:

1,055,506.55 Gross square meters

Performance year heating and cooling degree days

Degree days, performance year:

	Degree days
Heating degree days	3,603 Degree-Days (°C)
Cooling degree days	147 Degree-Days (°C)

Total degree days, performance year:

3,750 Degree-Days (°C)

Performance period

Start and end dates of the performance year (or 3-year period):

	Start date	End date
Performance period	Jan. 1, 2023	Dec. 31, 2023

Metric used in scoring for Part 1

Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:

79.37 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.

Electricity use, baseline year (report kWh):

	kWh	MMBtu
Imported electricity	122,440,785 Kilowatt-hours	417,767.96 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems)	44,679 Kilowatt-hours	152.44 MMBtu

Stationary fuels and thermal energy, baseline year (report MMBtu):

	MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy	630,557 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, baseline year:

1,048,477.40 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:

749,162 Gross square meters

Baseline period

Start and end dates of the baseline year (or 3-year period):

	Start date	End date
Baseline period	Jan. 1, 2015	Dec. 31, 2015

A brief description of when and why the energy consumption baseline was adopted:

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Source energy

Source-site ratio for imported electricity:

Total energy consumption per unit of floor area:

	Site energy	Source energy
Performance year	1.27 MMBtu per square meter	1.82 MMBtu per square meter
Baseline year	1.40 MMBtu per square meter	1.96 MMBtu per square meter

Metric used in scoring for Part 2

Percentage reduction in total source energy consumption per unit of floor area from baseline:

7.13

Optional Fields

Documentation to support the performance year energy consumption figures reported above:

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A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:

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A brief description of energy use standards and controls employed by the institution:

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A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:

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A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:

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A brief description of co-generation employed by the institution:

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A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:

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Website URL where information about the institution’s energy conservation and efficiency program is available:

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Additional documentation to support the submission:

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Data source(s) and notes about the submission:

The baseline year was adopted to be consistent with reporting on the University of Waterloo’s Climate Action Plan – Shift: Neutral. This base year was highly representative in terms of heating degree day weather influences, and mitigated the substantial historical changes in reduction of scope 2 emissions because of provincial coal power phase-out, which was outside the University’s scope of control.

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.