Overall Rating	Gold
Overall Score	68.89
Liaison	Natalie Sobrinski
Submission Date	Feb. 27, 2024

STARS v2.2

Muhlenberg College
OP-5: Building Energy Efficiency

Status	Score	Responsible Party
	3.72 / 6.00	Mike Becker Facilities, Trades and Systems Manager Plant Operations

"---" 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	18,790,653 Kilowatt-hours	64,113.71 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems)	3,785.73 Kilowatt-hours	12.92 MMBtu

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

	MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy	81,565 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, performance year:

145,691.62 MMBtu

Performance year building space

Gross floor area of building space, performance year:

1,472,679 Gross square feet

Floor area of energy intensive space, performance year:

	Floor area
Laboratory space	45,756 Square feet
Healthcare space	0 Square feet
Other energy intensive space	0 Square feet

EUI-adjusted floor area, performance year:

1,564,191 Gross square feet

Performance year heating and cooling degree days

Degree days, performance year:

	Degree days
Heating degree days	5,176 Degree-Days (°F)
Cooling degree days	889 Degree-Days (°F)

Total degree days, performance year:

6,065 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, 2021	June 30, 2022

Metric used in scoring for Part 1

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

15.36 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	20,652,747.61 Kilowatt-hours	70,467.17 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	111,025.29 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, baseline year:

181,492.46 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:

1,394,893 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, 2007	June 30, 2008

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

Building baseline chosen because it represented a high energy use period before implementation of Sustainability Master Plan

Source energy

Source-site ratio for imported electricity:

Total energy consumption per unit of floor area:

	Site energy	Source energy
Performance year	0.10 MMBtu per square foot	0.19 MMBtu per square foot
Baseline year	0.13 MMBtu per square foot	0.23 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:

19.53

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:

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

The campus New Science, Trumbower, Shankweiler, Seegers, Trexler Pavilion and Moyer buildings all work under the Niagara/Tridium Building Automation System. Set back temperatures are scheduled through the Tridium BAS based on building occupancy.

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

Muhlenberg College uses Light Emitting Diode (LED) technology in the following locations:

• * Stairways in Moyer and additional recessed lights in hallway
• * President's House
• * East Hall through renovation
• * Exterior lighting through attrition/new installs
• * new office space construction/renovation in Seegers Union, Moyer and New Science
• * Art Gallery & Galleria of C/A
• * Pavilion main area lighting & accent lighting on top level
• * Shankweiler bird display cases
• * Ettinger recessed lights in tiered classrooms
• * Cobra head lights on Back Drive
• * General's Quarters seating area renovation
• * Exit signs through renovation/attrition
• * Indicator lights above fire extinguishers
• * Seegers' Dining restaurant of Generals' Quarters

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

Solar Passive is used in the following locations: The Solar corridor, Robertson, South Hall
Robertson and South Hall were designed with full glass southern exposure. During the winter months the full range of solar gain is introduced into a three story section of both buildings. During the summer moths the tree lined exterior shades the area and reduces the solar impact. Life Sports center was designed with a solar corridor which consists of a 115’ X 36’ angled curtain wall with full southern exposure.

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:

Muhlenberg College benchmarks all building utility usage to define buildings that are operating outside what would be considered an acceptable range. When buildings are identified as being outside of an acceptable operating range, further analysis of building envelope, systems and operations are completed to understand current performance. The analysis consists at a minimum a full internal investigation of equipment, utilities and building automation programming. If sufficient information regarding building performance is not identified then an ASRAE level II audit is performed. Findings from these investigations have led to retro commissioning and re-commissioning of the following buildings on campus.

Baker Center for the Arts
Moyer Hall
East Hall
Trexler Library
Seegers Union

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

http://www.muhlenberg.edu/main/aboutus/plantops/sustainableinitiatives/sbom/

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.