Overall Rating Silver
Overall Score 54.05
Liaison Tony Gillund
Submission Date March 23, 2023

STARS v2.2

Purdue University
OP-2: Greenhouse Gas Emissions

Status Score Responsible Party
Complete 1.08 / 8.00 Tony Gillund
Director of Sustainability
Campus Planning, Architecture and Sustainability
"---" indicates that no data was submitted for this field

Scope 1 and Scope 2 GHG emissions

Gross GHG emissions

Gross Scope 1 and Scope 2 greenhouse gas (GHG) emissions:
Performance year Baseline year
Gross Scope 1 GHG emissions from stationary combustion 364,235 Metric tons of CO2 equivalent 429,377 Metric tons of CO2 equivalent
Gross Scope 1 GHG emissions from other sources 0 Metric tons of CO2 equivalent 0 Metric tons of CO2 equivalent
Gross Scope 2 GHG emissions from imported electricity 151,604 Metric tons of CO2 equivalent 174,309 Metric tons of CO2 equivalent
Gross Scope 2 GHG emissions from imported thermal energy 0 Metric tons of CO2 equivalent 0 Metric tons of CO2 equivalent
Total 515,839 Metric tons of CO2 equivalent 603,686 Metric tons of CO2 equivalent

Carbon sinks

Figures needed to determine net carbon sinks:
Performance year Baseline year
Third-party verified carbon offsets purchased 0 Metric tons of CO2 equivalent 0 Metric tons of CO2 equivalent
Institution-catalyzed carbon offsets generated 0 Metric tons of CO2 equivalent 0 Metric tons of CO2 equivalent
Carbon storage from on-site composting 0 Metric tons of CO2 equivalent 0 Metric tons of CO2 equivalent
Carbon storage from non-additional sequestration 0 Metric tons of CO2 equivalent 0 Metric tons of CO2 equivalent
Carbon sold or transferred 0 Metric tons of CO2 equivalent 0 Metric tons of CO2 equivalent
Net carbon sinks 0 Metric tons of CO2 equivalent 0 Metric tons of CO2 equivalent

If total performance year carbon sinks are greater than zero, provide:

A brief description of the carbon sinks, including vendor, project source, verification program and contract timeframes (as applicable):
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Adjusted net GHG emissions

Adjusted net Scope 1 and Scope 2 GHG emissions:
Performance year Baseline year
Adjusted net GHG emissions 515,839 Metric tons of CO2 equivalent 603,686 Metric tons of CO2 equivalent

Performance and baseline periods

Start and end dates of the performance year and baseline year (or three-year periods):
Performance year Baseline year
Start date July 1, 2021 July 1, 2010
End date June 30, 2022 June 30, 2011

A brief description of when and why the GHG emissions baseline was adopted:
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Part 1. Reduction in GHG emissions per person

Weighted campus users

Figures needed to determine “Weighted Campus Users”:
Performance year Baseline year
Number of students resident on-site 15,271 11,800
Number of employees resident on-site 0 0
Number of other individuals resident on-site 0 0
Total full-time equivalent student enrollment 45,990 38,216
Full-time equivalent of employees 12,767 11,769
Full-time equivalent of students enrolled exclusively in distance education 1,125 101
Weighted Campus Users 47,041.75 40,363

Metrics used in scoring for Part 1

Adjusted net Scope 1 and 2 GHG emissions per weighted campus user:
Performance year Baseline year
Adjusted net Scope 1 and 2 GHG emissions per weighted campus user 10.97 Metric tons of CO2 equivalent 14.96 Metric tons of CO2 equivalent

Percentage reduction in adjusted net Scope 1 and Scope 2 GHG emissions per weighted campus user from baseline:
26.68

Part 2. GHG emissions per unit of floor area

Performance year floor area

Gross floor area of building space, performance year:
20,569,626 Gross square feet

Floor area of energy intensive building space, performance year:
Floor area
Laboratory space 2,364,402 Square feet
Healthcare space 216,011 Square feet
Other energy intensive space 153,732 Square feet

EUI-adjusted floor area, performance year:
25,884,184 Gross square feet

Metric used in scoring for Part 2

Adjusted net Scope 1 and 2 GHG emissions per unit of EUI-adjusted floor area, performance year:
0.02 MtCO2e per square foot

A brief description of the institution’s GHG emissions reduction initiatives:
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Website URL where information about the institution's GHG emissions is available:
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Additional documentation to support the submission:
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Data source(s) and notes about 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 or simply email your inquiry to stars@aashe.org.