Overall Rating Gold
Overall Score 74.86
Liaison Alyssa Erding
Submission Date Jan. 19, 2021

STARS v2.2

Macalester College
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 3.70 / 6.00 Mike Pumroy
Energy Manager
Facilities Services
"---" indicates that no data was submitted for this field

Electricity use, performance year (report kilowatt-hours):
kWh MMBtu
Imported electricity 10,340,446.70 Kilowatt-hours 35,281.60 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 1,810.70 Kilowatt-hours 6.18 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 101,569.70 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, performance year:
136,857.48 MMBtu

Gross floor area of building space, performance year:
1,504,107 Gross Square Feet

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 178,408 Square Feet
Healthcare space 2,400 Square Feet
Other energy intensive space 17,000 Square Feet

EUI-adjusted floor area, performance year:
1,882,723 Gross Square Feet

Degree days, performance year:
Degree days
Heating degree days 7,951 Degree-Days (°F)
Cooling degree days 784 Degree-Days (°F)

Total degree days, performance year:
8,735 Degree-Days (°F)

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period Jan. 1, 2019 Dec. 31, 2019

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

Electricity use, baseline year (report kWh):
kWh MMBtu
Imported electricity 12,493,210.70 Kilowatt-hours 42,626.83 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 101,399.90 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, baseline year:
144,026.73 MMBtu

Gross floor area of building space, baseline year:
1,443,859 Gross Square Feet

Start and end dates of the baseline year (or 3-year period):
Start date End date
Baseline period June 1, 2014 May 31, 2015

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

Fiscal year 2014-15 was selected as the base year due to inconsistencies that were noted in the way that the energy used on campus was reported in our reports for earlier years. Additionally, FY 2014-15 is the same year that Macalester's Facilities Services Department selected as the base year for measuring the progress of their energy conservation initiatives.


Source-site ratio for imported electricity:
3

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.09 MMBtu / GSF 0.14 MMBtu / GSF
Baseline year 0.10 MMBtu / GSF 0.16 MMBtu / GSF

Percentage reduction in total source energy consumption per unit of floor area from baseline:
13.16

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:

During First Year orientation we are able to highlight energy use on campus. Students can check their energy use in residence halls from any device on the web. We host energy programming (Home Energy Squad) and digital signage about energy use. "Turn off the lights" signs are posted near every lightswitch in campus residence areas to remind students to conserve energy.


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

Macalester College uses building automation systems and occupancy sensors to control HVAC equipment –especially in high EUI areas like laboratory spaces and studios. The College hired an energy manager in 2014 to streamline this process and to look for other potential areas to conserve energy.


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

Facilities Services, at the discretion of the Energy Manager, is replacing all lights on campus with LEDs.


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

The EcoHouse uses solar-thermal to heat the DHW for the house - not metered.


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:

All of the major buildings were recommissioned in 2010.


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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The other energy intensive spaces consists of food preparation spaces, kitchens, freezers, and data centers.

The onsite fuel we use is natural gas, and very occasionally #2 fuel oil (only when we don't have access to natural gas).

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.