Overall Rating Silver
Overall Score 49.48
Liaison William Clancey
Submission Date Jan. 3, 2023

STARS v2.2

Durham College
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 6.00 / 6.00 William Clancey
Chief Operating Engineer/Technical Service Manager Facilities Management
Facilities Management
"---" 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 15,787,061 Kilowatt-hours 53,865.45 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 43,893 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, performance year:
97,758.45 MMBtu

Performance year building space

Gross floor area of building space, performance year:
1,724,773 Gross square feet

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 231,291 Square feet
Healthcare space 0 Square feet
Other energy intensive space 10,000 Square feet

EUI-adjusted floor area, performance year:
2,197,355 Gross square feet

Performance year heating and cooling degree days 

Degree days, performance year:
Degree days
Heating degree days 6,419 Degree-Days (°F)
Cooling degree days 547 Degree-Days (°F)

Total degree days, performance year:
6,966 Degree-Days (°F)

Performance period

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period Jan. 1, 2020 Dec. 31, 2020

Metric used in scoring for Part 1

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

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 18,805,026 Kilowatt-hours 64,162.75 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 58,477 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, baseline year:
122,639.75 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:
997,127 Gross square feet

Baseline period

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

A brief description of when and why the energy consumption baseline was adopted:
Baseline was adopted in line with Ministry of Energy mandated Energy Conservation and Demand Management Plan development

Source energy

Source-site ratio for imported electricity:
2.05

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.06 MMBtu per square foot 0.09 MMBtu per square foot
Baseline year 0.12 MMBtu per square foot 0.19 MMBtu per square foot

Metric used in scoring for Part 2

Percentage reduction in total source energy consumption per unit of floor area from baseline:
53.05

Optional Fields 

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

A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:
The geothermal field and Energy Innovation Centre (EIC) project is part of the ongoing transformation of Durham College’s (DC) energy infrastructure to support and implement sustainably focused initiatives on campus.

Located underground at the Oshawa campus, DC’s geothermal field harnesses 550 tons (1.9 megawatts) clean, sustainable geothermal power, which is then processed through the EIC and sent to the Gordon Willey building to fuel its energy needs.

The bright, modern EIC also provides an exhibit-like atmosphere where students and visitors can learn more about how the geothermal system works through interactive touch screen monitors, which features system diagrams and performance metrics. Additionally, a real-time energy dashboard provides insight on campus energy savings and the reduction of associated greenhouse gas emissions.

The EIC also acts as a living lab, allowing faculty from selected programs to incorporate geothermal technology into their curriculum and provides students with a unique experiential learning opportunity as they observe how green-energy technologies work.

The geothermal field and EIC were completed in partnership with Siemens Canada, who provided valuable industry knowledge and contributed as the primary contractor for the project.

A brief description of energy use standards and controls employed by the institution:
Durham College has a building automation system which regulates temperatures and allows setbacks while the room is not occupied. Aim to meet ASHRAE standards (55-1992)

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
All parking lot and roadway lighting upgrade from MH to LED

A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
The geothermal field and Energy Innovation Centre (EIC) project is part of the ongoing transformation of Durham College’s (DC) energy infrastructure to support and implement sustainably focused initiatives on campus.

Located underground at the Oshawa campus, DC’s geothermal field harnesses 550 tons (1.9 megawatts) clean, sustainable geothermal power, which is then processed through the EIC and sent to the Gordon Willey building to fuel its energy needs.

The bright, modern EIC also provides an exhibit-like atmosphere where students and visitors can learn more about how the geothermal system works through interactive touch screen monitors, which features system diagrams and performance metrics. Additionally, a real-time energy dashboard provides insight on campus energy savings and the reduction of associated greenhouse gas emissions.

The EIC also acts as a living lab, allowing faculty from selected programs to incorporate geothermal technology into their curriculum and provides students with a unique experiential learning opportunity as they observe how green-energy technologies work.

The geothermal field and EIC were completed in partnership with Siemens Canada, who provided valuable industry knowledge and contributed as the primary contractor for the project.

A brief description of co-generation employed by the institution:
3rd party owned and operated 2.4 MW cogen provides electrical and thermal on an intermittent basis

A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
Replaced 3 main chillers with high efficiency magnetic bearing compressor chiller systems

Website URL where information about the institution’s energy conservation and efficiency program is available:
Additional documentation to support the submission:
---

Data source(s) and notes about the submission:
---

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.