Overall Rating Gold
Overall Score 69.57
Liaison Cindy Shea
Submission Date Dec. 23, 2020

STARS v2.2

University of North Carolina at Chapel Hill
OP-1: Emissions Inventory and Disclosure

Status Score Responsible Party
Complete 2.73 / 3.00 Lew Kellogg
Executive Director
Energy Services
"---" 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:

GHG Inventory Methodology

System Boundary
Carolina uses an “operational control” approach to set a system boundary. This means emissions from entities under the authority of the University are claimed. The most notable exclusion is the UNC Hospitals. Although the University and UNC Hospitals share space and infrastructure, they are funded and operated separately. Carolina, however, claims all emissions from steam production despite UNC Hospitals’ steam use.

Emission Sources
For greenhouse gas inventories, emission sources are separated into three scopes. Scope 1 emissions are any emissions that the party is directly responsible for. The University’s scope 1 emissions consist of stationary combustion, vehicle fleet, refrigerant use, and fertilizer use. Scope 2 emissions are any emissions from utilities such as electricity or chilled water purchased by the party. Carolina’s scope 2 emissions consist solely of electricity purchases. Lastly, scope 3 emissions include all other emissions. These are typically referred to as supply chain emissions and include emissions from upstream sources. The University’s scope 3 emissions consist of commuting, air travel, food purchasing, paper purchasing, waste, wastewater, and energy losses.

Data Collection
To complete this inventory and the previous restatements, data was collected from 19 different University departments. To find a complete list of data sources and contributors, see Acknowledgments.

Calculation Tool
Historically, Carolina’s GHG inventory calculations were completed using a customized spreadsheet based on World Resources Institute’s GHG Protocol. While the spreadsheet precisely fit the University’s needs, it was not standardized with other universities, enabled calculation errors, and was difficult to share. For the 2017 inventory, Carolina switched to the Sustainability Indicator Management and Analysis Platform (SIMAP) tool created by the University of New Hampshire. This tool is widely used, makes the inventory more reliable, and easily enables data sharing.

Restatements
In addition to changing the tools used to calculate GHG emissions, the University increased the number of emission sources included in the 2017 inventory. Due to this, all past inventories were restated. These restatements ensure consistency in the inventories and allow accurate year-over-year comparisons.


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:

After the inventory was complete, the data and calculations were reviewed by a staff member not involved in the inventory process. The basic methods and results were then presented to several key stakeholders for internal validation and approval.


Documentation to support the GHG inventory verification process:
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Gross Scope 1 GHG emissions, performance year:
Weight in MTCO2e
Stationary combustion 233,296 Metric Tons of CO2 Equivalent
Other sources (mobile combustion, process emissions, fugitive emissions) 13,146 Metric Tons of CO2 Equivalent

Total gross Scope 1 GHG emissions, performance year:
246,442 Metric Tons of CO2 Equivalent

Gross Scope 2 GHG emissions, performance year (market-based):
Weight in MTCO2e
Imported electricity 101,506 Metric Tons of CO2 Equivalent
Imported thermal energy 0 Metric Tons of CO2 Equivalent

Total gross Scope 2 GHG emissions, performance year:
101,506 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 69,424 Metric Tons of CO2 Equivalent
Commuting Yes 39,316 Metric Tons of CO2 Equivalent
Purchased goods and services Yes 5,774 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 11,444 Metric Tons of CO2 Equivalent
Waste generated in operations Yes 2 Metric Tons of CO2 Equivalent
Other sources No 0 Metric Tons of CO2 Equivalent

Total Scope 3 GHG emissions, performance year:
125,960 Metric Tons of CO2 Equivalent

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

Scope 3 emissions are calculated using the same methods, protocols and tools as Scope 1 and 2. See general methodology.


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) 245.46 Tons
Sulfur oxides (SOx) 276.53 Tons
Carbon monoxide (CO) 99.21 Tons
Particulate matter (PM) 13.81 Tons
Ozone (O3) 0 Tons
Lead (Pb) 0.00 Tons
Hazardous air pollutants (HAPs) 15.92 Tons
Ozone-depleting compounds (ODCs) 0.00 Tons
Other standard categories of air emissions identified in permits and/or regulations 125.17 Tons

Do the air pollutant emissions figures provided include the following sources?:
Yes or No
Major stationary sources Yes
Area sources Yes
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:

1. Continuous emissions monitoring direct measurements
2. Performance stack testing measurements and flow data to determine mass rates
3. EPA emission factors (AP42) and fuel use data


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