Overall Rating Silver
Overall Score 46.07
Liaison Akrivi Papadaki
Submission Date April 30, 2020

STARS v2.2

George Brown College
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 2.66 / 6.00 Stephanie Foster
Green Team/Sustainability Coordinator
George Brown College
"---" indicates that no data was submitted for this field

Electricity use, performance year (report kilowatt-hours):
kWh MMBtu
Imported electricity 31,579,295 Kilowatt-hours 107,748.55 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 0 Kilowatt-hours 0 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 77,037 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, performance year:
184,785.55 MMBtu

Gross floor area of building space, performance year:
158,780 Gross Square Metres

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 9,655 Square Metres
Healthcare space 0 Square Metres
Other energy intensive space 2,536 Square Metres

EUI-adjusted floor area, performance year:
180,626 Gross Square Metres

Degree days, performance year:
Degree days
Heating degree days 2,849.70 Degree-Days (°C)
Cooling degree days 654.40 Degree-Days (°C)

Total degree days, performance year:
3,504.10 Degree-Days (°C)

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period Jan. 1, 2019 Dec. 31, 2019

Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:
0 Btu / GSM / Degree-Day (°C)

Electricity use, baseline year (report kWh):
kWh MMBtu
Imported electricity 21,785,144 Kilowatt-hours 74,330.91 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 69,117 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, baseline year:
143,447.91 MMBtu

Gross floor area of building space, baseline year:
116,125 Gross Square Metres

Start and end dates of the baseline year (or 3-year period):
Start date End date
Baseline period April 1, 2005 March 31, 2006

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

Baseline year was selected as part of the College's work to develop a Green Plan in 2005-06, which tracks the consumption of energy and related GHG emissions.


Source-site ratio for imported electricity:
2.05

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0 MMBtu / GSM 0 MMBtu / GSM
Baseline year 0.11 MMBtu / GSM 0.18 MMBtu / GSM

Percentage reduction in total source energy consumption per unit of floor area from baseline:
1.63

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:

As part of the Casa Loma Retrofit we carried out a pilot project to install "Surveyor" software on 300 computers; the surveyor software is a power management tool to optimize computer energy effieincy.


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

The Casa Loma Retrofit Project The 2017 Retrofit included:
Re-lamp existing screw-in lamps with LED
Upgrade exit signs with LED exit signs
Upgrade parking lot lighting with new LED fixtures
Install lighting controls
Optimize computer sleep mode and smart power bars
Control electric heating
Convert constant volume systems to carriable air volume (VAV)
Retro fit building envelope
Retrofit domestic water system
Upgrade some lights to LED fixture


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

n/a


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

n/a


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

The College's Green Purchasing Policy encourages purchase of only Energy Star rated equipment and appliances. Currently a review of all food services and Culinary School appliances is under to review to determine compliance with this guideline.


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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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.