Overall Rating Silver
Overall Score 54.23
Liaison Jeff Jeremiason
Submission Date Nov. 30, 2021

STARS v2.2

Gustavus Adolphus College
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 2.82 / 6.00 Travis Jordan
Director of Facilities
Facilities
"---" 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 13,712,463 Kilowatt-hours 46,786.92 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 129,746 Kilowatt-hours 442.69 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 131,177.80 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, performance year:
178,407.42 MMBtu

Performance year building space

Gross floor area of building space, performance year:
1,826,361 Gross square feet

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 53,501.80 Square feet
Healthcare space 1,245 Square feet
Other energy intensive space 7,076.10 Square feet

EUI-adjusted floor area, performance year:
1,942,930.70 Gross square feet

Performance year heating and cooling degree days 

Degree days, performance year:
Degree days
Heating degree days 8,601 Degree-Days (°F)
Cooling degree days 524 Degree-Days (°F)

Total degree days, performance year:
9,125 Degree-Days (°F)

Performance period

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period June 1, 2019 May 31, 2020

Metric used in scoring for Part 1

Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:
10.06 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 15,396,900 Kilowatt-hours 52,534.22 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 72,521 Kilowatt-hours 247.44 MMBtu

Stationary fuels and thermal energy, baseline year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 134,466.30 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, baseline year:
187,247.96 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:
1,536,996 Gross square feet

Baseline period

Start and end dates of the baseline year (or 3-year period):
Start date End date
Baseline period June 1, 2011 May 31, 2012

A brief description of when and why the energy consumption baseline was adopted:
The baseline year of 2011 was chosen since during this year Gustavus officially joined the American College and University Presidents’ Climate Commitment. This year also marked when the “Energy Use and Greenhouse Gas Emissions Reduction Plan” created by the director of the Johnson Center for Environmental Innovation was accepted by the Board of Trustees.

Source energy

Source-site ratio for imported electricity:
3

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.10 MMBtu per square foot 0.15 MMBtu per square foot
Baseline year 0.12 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:
21.70

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:
Gustavus has had several initiatives over the years to educate and shift individual practices regarding energy efficiently. This includes a building energy competition (Energy wars), focusing on energy efficiency education in several first term seminar courses, turning the lights off in the cafeteria during the sustainability lunch for first years during orientation, and placing reminder stickers to turn off lights in most campus buildings including residence halls.

A brief description of energy use standards and controls employed by the institution:
Several campus buildings are LEED certified and therefore follow standards and controls outlined in their accreditation. All campus buildings are operated with energy efficiency in mind, including set temperature standards, and many buildings have occupancy and vacancy sensors for temperature controls and lights.

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
Over the past several years, Facilities has instituted a campus-wide LED lighting upgrade in most buildings, which includes redesigning fixtures and replacing bulbs and ballasts with LEDs (and properly recycling old bulbs and ballasts), which has already saved energy and money.

A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
Many buildings on campus are designed to utilize passive solar heating and daylighting via window placement, including in Nobel, Beck, and Anderson. There is also a small experimental geothermal AC system connected to Olin (numbers are unavailable and very small, so they’ve been excluded from the report).

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:
Facilities has made a dedicated effort over the past several years to replace inefficient washers and dryers in residential halls with energy efficient and HE appliances, and continues to do so.

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

Additional documentation to support the submission:
---

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.