Overall Rating Gold
Overall Score 76.02
Liaison Rochelle Owen
Submission Date July 21, 2021

STARS v2.2

Dalhousie University
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 4.29 / 6.00 Rochelle Owen
Executive Director of Sustainability
Office of Sustainability
"---" indicates that no data was submitted for this field

Electricity use, performance year (report kilowatt-hours):
kWh MMBtu
Imported electricity 77,771,335 Kilowatt-hours 265,355.80 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 178,290 Kilowatt-hours 608.33 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 523,185 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, performance year:
789,149.12 MMBtu

Gross floor area of building space, performance year:
541,246 Gross Square Metres

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 176,817 Square Metres
Healthcare space 929 Square Metres
Other energy intensive space 208,399 Square Metres

EUI-adjusted floor area, performance year:
1,105,137 Gross Square Metres

Degree days, performance year:
Degree days
Heating degree days 3,946.50 Degree-Days (°C)
Cooling degree days 162 Degree-Days (°C)

Total degree days, performance year:
4,108.50 Degree-Days (°C)

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period April 1, 2019 March 31, 2020

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 80,264,908 Kilowatt-hours 273,863.87 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 648,465 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, baseline year:
922,328.87 MMBtu

Gross floor area of building space, baseline year:
468,905 Gross Square Metres

Start and end dates of the baseline year (or 3-year period):
Start date End date
Baseline period April 1, 2009 March 31, 2010

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

The 2009-2010 Baseline year is used to compare for the University Sustainability Report and the annual GHG Inventory.


Source-site ratio for imported electricity:
2

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

Percentage reduction in total source energy consumption per unit of floor area from baseline:
23.63

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:

The Sustainability Office runs campaigns and programs that support energy and water reduction such as Ecolympics, Brightest Idea competition, and lunch and learns, green building tours and education. In addition the office meets regularly with University departments such as Facilities and Ancillary services to embed energy efficiency clauses, requirements and standards in ongoing work.


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

The University has a temperature standard and employs a number of controls products in systems such as lighting and HVAC systems (opitnet, occupancy, C02, VFDs ...). A set back program is in place and ongoing to make adjustments and to rectify issues such as over-rides. A detailed EMIS program with advanced software and hundreds of meters are deployed.


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

Dalhousie has completed a Halifax and Agricultural campus wide lighting upgrade that employs LED technology in all parking areas, outdoor lighting, wall packs, most track lighting, chandelier and pot lights. LED tubes have been implemented in new construction and currently all buildings are being converted to LED tube lighting with campus-wide retrofits.


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

New buildings are being designed to consider the site location for maximizing solar gain, geoexchange is considered in each new building project. A 60 well geo-exchange system is installed at our Sexton campus. The University has a number of solar pv, thermal and air installations. Solar wall is added where it makes sense at the site. We are focusing more on solar pv for the integration ease.


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

The University in 2017-2018 has upgraded the steam system in our DE system at the Agricultural campus to hot water. A ORC(hot oil) biomass co-generation system was also installed that produced 1MW of electricity. Waste heat is used to heat the campus.
For the Halifax campuses - we are actively planning a major upgrade to the Halifax Central Heating Plant system and co-generation is a strategy we are always analyzing.


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

Dalhousie is upgrading existing building systems including lighting; heating, ventilation, and cooling systems; lab equipment; water fixtures, water fed and cooled units; fuel switching and additions such as renewable energy. Recommissioning has started on existing building stock.


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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