Overall Rating Gold
Overall Score 70.13
Liaison Trey McDonald
Submission Date March 24, 2021

STARS v2.2

University of San Diego
OP-1: Emissions Inventory and Disclosure

Status Score Responsible Party
2.56 / 3.00 Trey McDonald
Director of Sustainability and Energy Manager
Sustainability
"---" indicates that no data was submitted for this field

Has the institution conducted a GHG emissions inventory within the previous three years that includes all Scope 1 and 2 emissions? :
Yes

A copy of the most recent GHG emissions inventory:
A brief description of the methodology and/or tool used to complete the GHG emissions inventory:

The most recent GHG inventory was completed in December 2020 for FY2019. The calculation-based methodologies in A1:F88 Local Government Protocol are used to quantify GHG emissions in each scope and category. For some scope 3 categories that are not covered in the Local Government Protocol, the methods from Corporate Value Chain (Scope 3) are used.


Has the GHG emissions inventory been validated internally by personnel who are independent of the GHG accounting and reporting process and/or verified by an independent, external third party?:
Yes

A brief description of the GHG inventory verification process:

Internal review of the GHG emissions inventory is validated independently by the USD Office of Sustainability. The GHG inventory is conducted by the USD Energy Policy Initiatives Center, a separate entity that is housed in the USD School of Law.


Documentation to support the GHG inventory verification process:
Gross Scope 1 GHG emissions, performance year:
Weight in MTCO2e
Stationary combustion 3,402 Metric Tons of CO2 Equivalent
Other sources (mobile combustion, process emissions, fugitive emissions) 588 Metric Tons of CO2 Equivalent

Total gross Scope 1 GHG emissions, performance year:
3,990 Metric Tons of CO2 Equivalent

Gross Scope 2 GHG emissions, performance year (market-based):
Weight in MTCO2e
Imported electricity 6,554 Metric Tons of CO2 Equivalent
Imported thermal energy 0 Metric Tons of CO2 Equivalent

Total gross Scope 2 GHG emissions, performance year:
6,554 Metric Tons of CO2 Equivalent

Gross GHG emissions from biogenic sources, performance year:
0 Metric Tons of CO2 Equivalent

Does the GHG emissions inventory include Scope 3 emissions from the following sources?:
Yes or No Weight in MTCO2e
Business travel Yes 6,637 Metric Tons of CO2 Equivalent
Commuting Yes 6,748 Metric Tons of CO2 Equivalent
Purchased goods and services No 0 Metric Tons of CO2 Equivalent
Capital goods No 0 Metric Tons of CO2 Equivalent
Fuel- and energy-related activities not included in Scope 1 or Scope 2 Yes 289 Metric Tons of CO2 Equivalent
Waste generated in operations Yes 523 Metric Tons of CO2 Equivalent
Other sources Yes 279 Metric Tons of CO2 Equivalent

Total Scope 3 GHG emissions, performance year:
14,476 Metric Tons of CO2 Equivalent

A brief description of how the institution accounted for its Scope 3 emissions:

Scope 3 emissions included in the inventory, and changes from the 2015 inventory, are as follows:
1. Solid Waste Disposal
2. Water and Wastewater
3. Student and Employee Air Travel
• Team Travel is now under student travel (previously under employee travel)
• Ahler’s Center travel miles have popular layover city included,
International Center’s data do not.
• Some domestic trips are included, e.g. Sundance Film Festival.
• Many assumptions included, e.g. some programs just have class # or generic
program name (KSPS domestic internship).
• EPIC & USD not have data on the specific routes and the number and locations
of the layovers for each flight taken by students and employees. Instead,
we estimated an average distance for each flight based on the destination.
For the FY2019 inventory, there was an inconsistency between the data
obtained from the Ahler Center and the International Center regarding the
Graduate Business School’s Study Abroad travels. We assumed the Ahler
Center’s data to be more accurate for our calculations.

4. Student and Employee Commuting
• Different data sources for the calculation
The sources for miles and emission factors for fiscal years 2010-15 and fiscal years 2017-18 are different. Data used to estimate FY2017, FY2018, and FY2019 emissions from student and employee commuting were collected from a survey conducted in 2018. Whereas data from parking permits sold, student and employee address zip codes, and a commuter survey were used to estimate GHG emission calculations for fiscal years 2010-15. The vehicle emission factors for FY 2019 were estimated by multiplying the FY 2018 USD vehicle emission rate with the ratio of San Diego regional 2019 to 2018 CO2e emission rate. The data for San Diego regional passenger cars and small to medium trucks were acquired from the EMFAC 2017 database. EMFAC (EMission FACtor) is a model developed by the California Air Resources Board to estimate the official emissions inventories of on road mobile sources in California.

USD and EPIC acquired data required to calculate the FY2017 and FY2018 student and employee commute emission through a survey conducted in 2018. We do not have the exact data on commute distance and frequency to calculate the exact emissions. So, we estimated the emission rate for 2019 by scaling the 2017 emission rates by the ratio of San Diego regional 2019 to 2017 CO2e emission rates.

5. Generation of Electricity Consumed in Transmission & Distribution System (T&D System losses)
• More on-site electric generation, less grid purchase, therefore less T&D losses
6. Emissions previously not included in the CAP but can be tracked separately now:
• Athletic buses off-campus refuel
• Direct financed travel - vehicle


Has the institution completed an inventory within the previous three years to quantify its air pollutant emissions?:
Yes

Annual weight of emissions for::
Weight of Emissions
Nitrogen oxides (NOx) 0.98 Tons
Sulfur oxides (SOx) 0.01 Tons
Carbon monoxide (CO) 0.23 Tons
Particulate matter (PM) 0.08 Tons
Ozone (O3) 0 Tons
Lead (Pb) 0.03 Tons
Hazardous air pollutants (HAPs) ---
Ozone-depleting compounds (ODCs) 0 Tons
Other standard categories of air emissions identified in permits and/or regulations 118 Tons

Do the air pollutant emissions figures provided include the following sources?:
Yes or No
Major stationary sources Yes
Area sources No
Mobile sources No
Commuting No
Off-site electricity production No

A brief description of the methodology(ies) the institution used to complete its air emissions inventory:

USD stationary emission sources consist of seven generators, one fire pump, five hot water boilers, and one gasoline dispensing facility. Fuel usage figures are provided to San Diego Air Pollution Control, who uses source test emissions factors to calculate approximate emissions. Test results are from 2019.


Gross Scope 2 GHG emissions from purchased electricity (location-based):
---

Gross Scope 2 GHG emissions from imported thermal energy (location-based) :
---

Website URL where information about the institution’s emissions inventories is available:
Additional documentation to support 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 and complete the Data Inquiry Form.