Overall Rating	Silver
Overall Score	64.03
Liaison	Katie Beitz
Submission Date	March 3, 2023

STARS v2.2

Oklahoma State University
OP-2: Greenhouse Gas Emissions

Status	Score	Responsible Party
	5.78 / 8.00	Kristeena Blaser Sustainability Coordinator Energy Services

"---" 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	31,427.20 Metric tons of CO2 equivalent	41,688.44 Metric tons of CO2 equivalent
Gross Scope 1 GHG emissions from other sources	3,537.87 Metric tons of CO2 equivalent	6,813.61 Metric tons of CO2 equivalent
Gross Scope 2 GHG emissions from imported electricity	22,134.59 Metric tons of CO2 equivalent	117,045.45 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	57,099.66 Metric tons of CO2 equivalent	165,547.50 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	---
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	57,099.66 Metric tons of CO2 equivalent	165,547.50 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	Jan. 1, 2006
End date	June 30, 2022	Dec. 31, 2006

A brief description of when and why the GHG emissions baseline was adopted:

CY 2006 was the first year that OSU completed a GHG emission inventory. It also coincides with the base-year for the OSU Energy Management Program.

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	6,233	5,249
Number of employees resident on-site	116	293
Number of other individuals resident on-site	260	0
Total full-time equivalent student enrollment	21,672.52	21,235
Full-time equivalent of employees	4,900	4,677
Full-time equivalent of students enrolled exclusively in distance education	1,845	247
Weighted Campus Users	20,392.89	20,634.25

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	2.80 Metric tons of CO2 equivalent	8.02 Metric tons of CO2 equivalent

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

65.10

Part 2. GHG emissions per unit of floor area

Performance year floor area

Gross floor area of building space, performance year:

11,061,634.71 Gross square feet

Floor area of energy intensive building space, performance year:

	Floor area
Laboratory space	828,185.45 Square feet
Healthcare space	91,206.31 Square feet
Other energy intensive space	963,413.18 Square feet

EUI-adjusted floor area, performance year:

13,863,831.41 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:

0.00 MtCO2e per square foot

A brief description of the institution’s GHG emissions reduction initiatives:

OSU's carbon footprint, which we have been tracking since 2006, has been greatly reduced by our purchase of wind power RECs that provide approximately 72% of the campus' electricity. Facilities Management recently instituted a No-Idle Policy and the Department of Parking & Transit has many measures in place to reduce pollution included CNG powered buses, carpool and bike programs. These initiatives, along with an aggressive energy conservation policy and the OSU Energy Management Program have reduced overall energy usage and emissions across campus. The Cowboy Wind Farm supplies approximately 72% of OSU Stillwater's electricity annually and that has been the largest contribution to OSU's Greenhouse Gas emissions reduction since OSU's baseline year.

Website URL where information about the institution's GHG emissions is available:

https://fm.okstate.edu/energyservices/campus-carbon-footprint.html

Additional documentation to support the submission:

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Data source(s) and notes about the submission:

Data Sources:
Casey Keyser, Senior Energy Manager, Energy Management and Sustainability
Steven McClary, Manager, Geospatial Systems

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.