Overall Rating Silver
Overall Score 55.56
Liaison Kristeena Blaser
Submission Date Aug. 25, 2021

STARS v2.2

Oklahoma State University
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 4.31 / 6.00 Kristeena Blaser
Sustainability Coordinator
Energy Services
"---" indicates that no data was submitted for this field

Electricity use, performance year (report kilowatt-hours):
kWh MMBtu
Imported electricity 137,621,279 Kilowatt-hours 469,563.80 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 0 Kilowatt-hours 0 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 489,305 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, performance year:
958,868.80 MMBtu

Gross floor area of building space, performance year:
11,613,854 Gross Square Feet

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 973,368 Square Feet
Healthcare space 93,900 Square Feet
Other energy intensive space 215,683 Square Feet

EUI-adjusted floor area, performance year:
13,964,073 Gross Square Feet

Degree days, performance year:
Degree days
Heating degree days 4,036 Degree-Days (°F)
Cooling degree days 1,853 Degree-Days (°F)

Total degree days, performance year:
5,889 Degree-Days (°F)

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period July 1, 2018 June 30, 2019

Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:
11.66 Btu / GSF / Degree-Day (°F)

Electricity use, baseline year (report kWh):
kWh MMBtu
Imported electricity 133,759,160 Kilowatt-hours 456,386.25 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 0 Kilowatt-hours 0 MMBtu

Stationary fuels and thermal energy, baseline year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 638,198 MMBtu
Imported steam, hot water, and/or chilled water 383,398.50 MMBtu

Total site energy consumption, baseline year:
1,477,982.75 MMBtu

Gross floor area of building space, baseline year:
10,701,263 Gross Square Feet

Start and end dates of the baseline year (or 3-year period):
Start date End date
Baseline period Jan. 1, 2006 Dec. 31, 2006

A brief description of when and why the energy consumption baseline was adopted:
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Source-site ratio for imported electricity:
3.14

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.08 MMBtu / GSF 0.17 MMBtu / GSF
Baseline year 0.14 MMBtu / GSF 0.23 MMBtu / GSF

Percentage reduction in total source energy consumption per unit of floor area from baseline:
26.29

Documentation to support the performance year energy consumption figures reported above:
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A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:

The OSU Energy Management Program employs behavior-based energy management techniques to engage all staff, faculty and students in the University's goal to continue to lower its energy usage. Outreach and education efforts include presentations, tours, training, office reminder notes, contests, quizzes, email blasts, social media updates, tabling, and special events


A brief description of energy use standards and controls employed by the institution:

We use a building automation system to schedule HVAC run times in most general University buildings. The University has included both occupied and unoccupied temperature ranges for building temperatures within our energy management guidelines. In many labs, occupancy sensors are used to control HVAC and air flow rates so that life safety needs are met while maximizing energy efficiency.


A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:

Lighting is being replaced where possible with LED fixtures. The Lutron Vive control system has also been implemented in four buildings with expectations to introduce in various facilities across campus. Outdoor LED lighting has been installed in most outdoor fixtures.


A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:

Passive solar heating is employed on campus in these buildings: NRC atrium, ATRC atrium, the Colvin Annex, Architecture building south hallways, and the Student Union atrium.


A brief description of co-generation employed by the institution:
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A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
---

Website URL where information about the institution’s energy conservation and efficiency program is available:
Additional documentation to support the submission:
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Data Sources:
Casey Keyser, Senior Energy Manager, Energy Services and Sustainability
Steven McClary, Manager Geospatial Systems, 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 and complete the Data Inquiry Form.