Overall Rating	Silver
Overall Score	48.14
Liaison	John Stolz
Submission Date	March 1, 2024

STARS v2.2

Duquesne University
OP-5: Building Energy Efficiency

Status	Score	Responsible Party
	1.54 / 6.00	Maria Mlinarcik Graduate Assistant Center for Environmental Research & Education

"---" indicates that no data was submitted for this field

Part 1. Site energy use per unit of floor area

Performance year energy consumption

Electricity use, performance year (report kilowatt-hours):

	kWh	MMBtu
Imported electricity	18,293,880 Kilowatt-hours	62,418.72 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems)	1,193.50 Kilowatt-hours	4.07 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):

	MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy	642,354.24 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, performance year:

704,777.03 MMBtu

Performance year building space

Gross floor area of building space, performance year:

3,433,875 Gross square feet

Floor area of energy intensive space, performance year:

	Floor area
Laboratory space	66,995 Square feet
Healthcare space	4,253 Square feet
Other energy intensive space	65,521 Square feet

EUI-adjusted floor area, performance year:

3,641,892 Gross square feet

Performance year heating and cooling degree days

Degree days, performance year:

	Degree days
Heating degree days	4,726 Degree-Days (°F)
Cooling degree days	803 Degree-Days (°F)

Total degree days, performance year:

5,529 Degree-Days (°F)

Performance period

Start and end dates of the performance year (or 3-year period):

	Start date	End date
Performance period	July 1, 2022	June 30, 2023

Metric used in scoring for Part 1

Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:

35.00 Btu / GSF / Degree-Day (°F)

Part 2. Reduction in source energy use per unit of floor area

Baseline year energy consumption

STARS 2.2 requires electricity data in kilowatt-hours (kWh). If a baseline has already been established in a previous version of STARS and the institution wishes to continue using it, the electricity data must be re-entered in kWh. To convert existing electricity figures from MMBtu to kWh, simply multiply by 293.07107 MMBtu/kWh.

Electricity use, baseline year (report kWh):

	kWh	MMBtu
Imported electricity	12,662,807 Kilowatt-hours	43,205.50 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	622,713.02 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, baseline year:

665,918.52 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:

3,767,084 Gross square feet

Baseline period

Start and end dates of the baseline year (or 3-year period):

	Start date	End date
Baseline period	July 1, 2011	June 30, 2012

A brief description of when and why the energy consumption baseline was adopted:

FY12 was the year that solar panels were installed on a campus building and the campus co-generation plant came online.

Source energy

Source-site ratio for imported electricity:

Total energy consumption per unit of floor area:

	Site energy	Source energy
Performance year	0.21 MMBtu per square foot	0.24 MMBtu per square foot
Baseline year	0.18 MMBtu per square foot	0.20 MMBtu per square foot

Metric used in scoring for Part 2

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

Optional Fields

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:

As a partner of the nation’s first EcoInnovation District, Duquesne University has committed to “creating an equitable and sustainable community." One of the goals of the EcoInnovation District involves reducing carbon emissions from energy use and as a result, Duquesne has a goal of achieving carbon neutrality. We are also a partner of the Pittsburgh 2030 District: Downtown. This is an internationally recognized, locally driven strategic initiative of Green Building Alliance (GBA) which aims to improve indoor air quality and reduce energy use, water consumption, and transportation emissions 50% by 2030.

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

Duquesne University uses a direct digital control system to monitor rooms and turn off lights/lower temperatures when they are not in use automatically.

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

Duquesne University has installed LED bulbs in all of the campus street lights and ballasts. Additionally, as Duquesne University renovates buildings and rooms, they always install LED or other energy efficient lighting strategies. Duquesne University has also installed sodium vapor lighting in all on-campus parking garages. While students were away from campus during COVID-19, facilities management at Duquesne University replaced over 15,000 fluorescent lightbulbs on campus with LEDs.

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

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A brief description of co-generation employed by the institution:

Duquesne has operated a combined heat and power (cogeneration) facility since 1997 that generates electricity and uses the waste heat from the process to heat and cool campus buildings. Annually, the natural gas-fired power plant produces approximately 75% of the power used for electricity and nearly 100% of the heating and cooling of the University's facilities. It is Pennsylvania's first approved generation system for creating Alternative Energy Credits. Duquesne purchases the remainder of its energy needs from renewable sources.

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

As Duquesne University renovates buildings and rooms, they always install energy efficient appliances and equipment.

Website URL where information about the institution’s energy conservation and efficiency program is available:

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Additional documentation to support the submission:

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Data source(s) and notes about the submission:

- Imported electricity value comes from electricity report that David Chismar sends for the GHG report
- Electricity from on-site, non-combustion facilities/devices refers to the amount of energy generated by the Des Places hall solar panel and is provided by David Chismar
- Stationary fuels used on-site to generate electricity and/or thermal energy comes from GHG checklist (Cogen MMBtu column of Scope 1b tab)
- To find heating and cooling degree days use the ENERGY STAR Portfolio Manager Degree Days calculator and use the postal code 15282. Make year ending June 30 of whatever fiscal year you are calculating for.

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.