Overall Rating Silver
Overall Score 51.63
Liaison Dwayne Doornbosch
Submission Date June 24, 2021

STARS v2.2

Langara College
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 3.29 / 6.00 Patricia Baker
Associate Director Facilities
"---" indicates that no data was submitted for this field

Electricity use, performance year (report kilowatt-hours):
kWh MMBtu
Imported electricity 11,084,516 Kilowatt-hours 37,820.37 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 12,840 Kilowatt-hours 43.81 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):
Stationary fuels used on-site to generate electricity and/or thermal energy 23,839.49 MMBtu
Imported steam, hot water, and/or chilled water MMBtu

Total site energy consumption, performance year:
61,703.67 MMBtu

Gross floor area of building space, performance year:
66,778 Gross square meters

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 2,369.65 Square meters
Healthcare space 523.62 Square meters
Other energy intensive space 104.02 Square meters

EUI-adjusted floor area, performance year:
72,668.56 Gross square meters

Degree days, performance year:
Degree days
Heating degree days 2,653 Degree-Days (°C)
Cooling degree days 67 Degree-Days (°C)

Total degree days, performance year:
2,720 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:
312.17 Btu / GSM / Degree-Day (°C)

Electricity use, baseline year (report kWh):
kWh MMBtu
Imported electricity 7,771,360 Kilowatt-hours 26,515.88 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) Kilowatt-hours MMBtu

Stationary fuels and thermal energy, baseline year (report MMBtu):
Stationary fuels used on-site to generate electricity and/or thermal energy 34,889.05 MMBtu
Imported steam, hot water, and/or chilled water MMBtu

Total site energy consumption, baseline year:
61,404.93 MMBtu

Gross floor area of building space, baseline year:
51,302 Gross square meters

Start and end dates of the baseline year (or 3-year period):
Start date End date
Baseline period Jan. 1, 2007 Dec. 31, 2007

A brief description of when and why the energy consumption baseline was adopted:
This baseline was chosen to align with our Carbon Neutral Baseline established by Government. See Strategic Energy Management Plan Update 2019 & 2020.

Source-site ratio for imported electricity:

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.92 MMBtu per square meter 1.49 MMBtu per square meter
Baseline year 1.20 MMBtu per square meter 1.71 MMBtu per square meter

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

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:
• Hired a co-op student dedicated to developing a sustainability student ambassador program for the College, with goals to increase employee and student engagement. • Work with the Student Engagement Office to increase awareness and engagement of sustainability activities on campus. - participation in Energy Wise Awareness Program, including fume hood/green labs campaign, kitchen equipment and plug loads, and general awareness. - student-led renewable energy project T Building solar panel installation. - Commissioned campus wide BTU metering initiative allowing Langara to understand gas usage by building on campus; this allows us to benchmark building performance and identify poor performing buildings systems. -work with operators on building controls training and operation. -Supported sustainability tour development, related to energy usage and building systems. - Energy monitoring and reporting - PUMA - including monthly exception reporting to identify areas of concern. - Live submeter data available for troubleshooting, understanding demand profiles etc. - Kaizen Coppertree analytics software, in early stages of deployment.

A brief description of energy use standards and controls employed by the institution:
- All Building use central building controls systems with operator friendly graphics to facilities. All new lighting is upgraded to LED, Fan systems are upgraded to VAV from constant volume, use of CO2 controls where feasible, occupancy sensors/vacancy sensors. • Installing additional occupancy sensors for classroom lighting control

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
• Gym lighting upgrade to LED for both energy and lighting quality improvements. • Incorporated LED lighting upgrades and improved ventilation distribution into space planning and renovation processes for repurposed and upgraded areas. • Upgraded LED exterior lighting. • Library LED lighting upgrade and redesign completed

A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
Langara currently has 3 LEED certified buildings served by geo-exchange and our T Building, C North and LSU buildings also use a Thermal gradient header technology “Thermenex” to reuse waste heat within the buildings. These technologies are renewable and have decreased our reliance on natural gas for heat. We demonstrated in the analysis in the previous sections that these technologies have decreased our gas usage per GSM in our L & T Buildings by 82% compared to 2007 levels (on per unit area basis). Although we do not currently have metering in place to estimate the equivalent energy from Geo-Exchange and Heat Recovery, we wanted to carry out an analysis to understand better the proportion of renewable energy on campus. Comparing the performance of these newer buildings, using renewable technologies, compared to what we expect our campus energy use per GSM to be once we have completed our Central Heating Plant extension across campus, we have estimated the amount of renewables utilized on campus. The difference is approximately 37 ekWh / GSM. Using the areas of the building groups and the factor of 37 ekwh/GSM above, it is estimated that our buildings on campus produce about 500,000 kWh of energy with geo-exchange and 500,000 with heat recovery for a combined total of 1,000,000 ekwh. This is equivalent to 14% of our ekWh of natural gas usage on campus or 6% of our total energy use on campus.

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

A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
All appliances and equipment require and energy star rating. Although this is not written in policy, facilities is require to approve purchases that consume energy through the procurement process. Over the past 10 years, Langara has carried out recommissioning and retrofits on campus to improve energy efficiency. This is reflected in the overall energy usage reduction on campus. We have reduced our overall energy usage per GSM by 23 % compared to 2007. • This includes a 48% reduction in gas usage per GSM and an overall increase in electricity per GSM of 10% compared to 2007. The decrease in gas and increasing electricity usage is expected as we shift to geo-exchange and heat recovery technologies on campus / low carbon electrification concepts.

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:

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