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

STARS v2.2

Langara College
OP-6: Clean and Renewable Energy

Status Score Responsible Party
Complete 0.22 / 4.00 Patricia Baker
Associate Director Facilities
"---" indicates that no data was submitted for this field

Total energy consumption, performance year:
61,703.67 MMBtu

Clean and renewable electricity (report kilowatt-hours):
kWh MMBtu
Imported electricity from certified/verified clean and renewable sources (i.e., bundled green power purchases) 0 Kilowatt-hours 0 MMBtu
Electricity from on-site, clean and renewable sources (rights retained/retired) 12,840 Kilowatt-hours 43.81 MMBtu

A brief description of the certified/verified sources of clean and renewable electricity:

A brief description of the on-site renewable electricity generating facilities/devices:
In 2018, through a student led initiative, Langara installed solar panels as a renewable energy source on top of the Science and Technology Building.

In 2021, an additional 45 solar panels were installed, for a total of 83 panels on campus at time of submission. It is now a 30.98 kWp (kilowatt peak) system.

Clean and renewable thermal energy (report MMBtu):
Clean and renewable stationary fuels used on-site to generate thermal energy 3,412.14 MMBtu
Imported steam, hot water, and/or chilled water from certified/verified clean and renewable sources 0 MMBtu

A brief description of the clean and renewable stationary fuels:
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 (13,670 GSM – Geo Exchange & 13,808 GSM – Heat Recovery) 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. This is a conservative estimate as the base building comparison includes these buildings.

See section on Renewables in Strategic Energy Management Plan Update May 2021

A brief description of the certified/verified sources of clean and renewable thermal energy:

Unbundled renewable energy products (report kWh):
kWh MMBtu
Purchased RECs, GOs, I-RECs or equivalent unbundled renewable energy products certified by a third party 0 Kilowatt-hours 0 MMBtu

A brief description of the unbundled renewable energy products:

Total clean and renewable energy generated or purchased:
3,455.95 MMBtu

Percentage of total energy consumption from clean and renewable sources:

Website URL where information about the institution’s support for clean and renewable energy is available:

Electricity use, by source (percentage of total, 0-100):
Percentage of total electricity use (0-100)
Biomass ---
Coal ---
Geothermal ---
Hydro ---
Natural gas ---
Nuclear ---
Solar photovoltaic ---
Wind ---
Other (please specify and explain below) ---

A brief description of other sources of electricity not specified above:

Energy used for heating buildings, by source::
Percentage of total energy used to heat buildings (0-100)
Biomass ---
Coal ---
Electricity ---
Fuel oil ---
Geothermal ---
Natural gas ---
Other (please specify and explain below) ---

A brief description of other sources of building heating not specified above:

Additional documentation to support the submission:
Data source(s) and notes about the submission:
Reported solar photovoltaic output data is from the 2019 calendar year, to align with the reporting year used in OP-5.

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.