|Overall Rating||Gold - expired|
|Submission Date||Jan. 7, 2015|
OP-8: Building Energy Consumption
|0.00 / 6.00||
Executive Director of Sustainability
Office of Sustainability
Total building energy consumption, all sources (transportation fuels excluded):
|Performance Year||Baseline Year|
|Total building energy consumption||813,581 MMBtu||732,399 MMBtu|
Purchased electricity and steam:
|Performance Year||Baseline Year|
|Grid-purchased electricity||240,290 MMBtu||237,774 MMBtu|
|District steam/hot water||573,291 MMBtu||494,625 MMBtu|
Gross floor area of building space::
|Performance Year||Baseline Year|
|Gross floor area||420,896.39 Gross Square Metres||397,844.28 Gross Square Metres|
Floor area of energy intensive space, performance year::
|Laboratory space||44,369.27 Square Metres|
|Healthcare space||1,350.72 Square Metres|
|Other energy intensive space|
Degree days, performance year (base 65 °F)::
|Degree days (see help icon above)|
|Heating degree days||4,049|
|Cooling degree days||161|
|Source-Site Ratio (see help icon above)|
|District steam/hot water||1.20|
Start and end dates of the performance year and baseline year (or 3-year periods)::
|Start Date||End Date|
|Performance Year||April 1, 2013||March 31, 2014|
|Baseline Year||April 1, 2009||March 31, 2010|
A brief description of when and why the building energy consumption baseline was adopted:
A brief description of any building temperature standards employed by the institution:
Dalhousie does have some timers on certain systems in different buildings for controlling building temperatures. We have a Building Automation System (Metaysys) (Johnson Controls Metasys System) that uses DDC control to schedule and control building systems based on industry standards for indoor environmental comfort.
Some newer buildings such as the Mona Campbell and buildings being retrofitted like the LSC are automatically programmed to regulate temperature in spaces based on occupancy hours. They use digital thermostats that are controlled at the user level and the building automation control system.
A brief description of any light emitting diode (LED) lighting employed by the institution:
Dalhousie has completed a Halifax campus wide lighting upgrade that employs LED technology in all parking areas, outdoor lighting, wall packs, most track lighting, and chandelier and pot light. LED tube lights have been installed at the AC campus.
A brief description of any occupancy and/or vacancy sensors employed by the institution:
Dalhousie uses lighting sensors in a number of buildings for daylight (ex. Tupper Link – outdoor lights); and occupancy for spaces, bathroom, hallways and many offices. Also have some lights on timers inside and outdoors.
Motion sensor lighting in the bathrooms and hallways are in many spaces on campus. Occupancy sensors and light sensors in locations such as bathrooms, the arena, glass corridors, major retrofit projects, and new buildings.
The full Halifax campus lighting upgrade included the installation of new lighting sensors throughout campus.
A brief description of any passive solar heating employed by the institution:
New buildings are being designed to consider the site location for maximizing solar gain.
A brief description of any ground-source heat pumps employed by the institution:
A brief description of any cogeneration technologies employed by the institution:
A co-gen project is underdevelopment at the AC campus.
A brief description of any building recommissioning or retrofit program employed by the institution:
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.
A brief description of any energy metering and management systems employed by the institution:
Dalhousie uses sub metering for electricity – Ion Meters. Web reach is used to analyze 15 min electrical interval data for many key buildings on campus. Dalhousie also uses central building automation system Metasys. Building HVAC are controlled through Metasys and set backs are automatically programmed. Water meters and btu meters are also integrated into Metasys providing 15 min data. Some buildings meter data is sent to Lucid designs public dashboard.
A brief description of the institution's program to replace energy-consuming appliances, equipment and systems with high efficiency alternatives:
The Office of Sustainability, in collaboration with Facilities Management undertook a project to upgrade all of the lights on Halifax campus, both inside and outside. Almost all of Dalhousie’s buildings were upgraded, with the exception of a few buildings that will be getting more extensive retrofits. All outdoor lamps and light fixtures on Dalhousie property were also overhauled. Plans are underway for a lighting upgrade on AC campus and a water fixture upgrades of Halifax campus.
Also, Dalhousie has replaced 632 old fridges and freezers on the Halifax and AC with ENERGY STAR appliances
A brief description of any energy-efficient landscape design initiatives employed by the institution:
Stormwater management actions are being taken with new projects such as adding water cisterns and green roofs in new buildings and permeable pavement. Two rain garden projects have been implemented to slow down water flow on university property.
A brief description of any vending machine sensors, lightless machines, or LED-lit machines employed by the institution:
Dalhousie renegotiated a beverage container contract in 2009. As part of this process it was a mandatory criteria stated in the RFP that any new beverage vending machine must be the latest version of ENERGY STAR and must use vending miser technology in it.
A brief description of other energy conservation and efficiency initiatives employed by the institution:
The website URL where information about the institution’s energy conservation and efficiency initiatives is available:
Dalhousie has implemented a number of energy efficiency projects such as campus lighting to HVAC set back scheduling to fixing compressed air leakages. The university also working on a number of new initiatives. This baseline year is used in our University Sustainability Plan to compare progressive targets to for water, energy, GHGs. This year is when accurate data could be reliably accessed. Lab and Energy Intensive spaces are calculated using space type with in each building. In 2010-2011 the university changed from bunker C oil to natural gas for the main heating plant. As such there is approximately a 5% difference in heating value per energy unit impacting the consumption slightly.
This information includes the Halifax campuses. The NS Agriculture College merged with Dalhousie in September 2012. At that time a project was put in place to meter water coming to the campus. This campus 1/10 the size of the Halifax campuses will be included in the next STARS report for this category.
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.