Overall Rating	Gold
Overall Score	66.09
Liaison	Elizabeth Drake
Submission Date	March 3, 2023

STARS v2.2

Swarthmore College
OP-5: Building Energy Efficiency

Status	Score	Responsible Party
	4.23 / 6.00	Hannah Ulloa Climate Action Manager Office of Sustainability

"---" 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	16,915,294 Kilowatt-hours	57,714.98 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems)	56,940 Kilowatt-hours	194.28 MMBtu

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

	MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy	85,236 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, performance year:

143,145.26 MMBtu

Performance year building space

Gross floor area of building space, performance year:

1,827,664 Gross square feet

Floor area of energy intensive space, performance year:

	Floor area
Laboratory space	92,331 Square feet
Healthcare space	4,291 Square feet
Other energy intensive space	9,159 Square feet

EUI-adjusted floor area, performance year:

2,030,067 Gross square feet

Performance year heating and cooling degree days

Degree days, performance year:

	Degree days
Heating degree days	3,800 Degree-Days (°F)
Cooling degree days	1,310 Degree-Days (°F)

Total degree days, performance year:

5,110 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, 2020	June 30, 2021

Metric used in scoring for Part 1

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

13.80 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	17,142,606 Kilowatt-hours	58,490.57 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	103,339 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, baseline year:

161,829.57 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:

1,444,010 Gross square feet

Baseline period

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

	Start date	End date
Baseline period	Jan. 1, 2005	Dec. 31, 2005

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

2005 was our peak year for energy consumption after a decade of growth.

Source energy

Source-site ratio for imported electricity:

Total energy consumption per unit of floor area:

	Site energy	Source energy
Performance year	0.08 MMBtu per square foot	0.14 MMBtu per square foot
Baseline year	0.11 MMBtu per square foot	0.19 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:

26.73

Optional Fields

Documentation to support the performance year energy consumption figures reported above:

---

A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:

There is signage around campus that encourages individuals to turn lights off after they leave a room. There are also campus-wide emails that remind students who live on campus to unplug all electronic devices and turn off all lights when leaving for extended breaks.

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

Energy management practices include use of an extensive Siemens BMS to implement nighttime setbacks, room scheduling, and temporary heating/cooling options to allow partial use over breaks or off-peak times. Lighting sensors are also employed in a wide variety of campus spaces.

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

All new lighting is specified to be LED unless impractical or special purpose. Past and recent projects include the retrofit of various Athletics facilities and the Science Center to switch incandescents into LED light fixtures.

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

The PPR Apartments is connected to a geothermal energy system. Singer Hall, another new academic building, was built with Passive Design & Envelope Optimization, which combine to put less demand on the HVAC systems and retaining conditioned air through leak prevention and increased insulation. Additionally, the College has begun work to transition all heating and cooling on campus to a geoexchange system. Mention geoexchange system for Whittier hall, working on transitioning enetire system to geoexchange.

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

None.

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:

https://www.swarthmore.edu/sustainability/sustainable-building

Additional documentation to support the submission:

---

Data source(s) and notes about the submission:

Imported electricity number includes buildings off the main campus (101 S. Chester) & separately metered buildings.

This data was assembled by Jim Adams, Director of Sustainable Maintenance, Domenic Porrini, Asst. Director for Sustainable Energy Services, and Hannah Ulloa, Climate Action Manager.

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.