| Overall Rating | Gold - expired |
|---|---|
| Overall Score | 74.96 |
| Liaison | Megan Butler |
| Submission Date | Jan. 19, 2021 |
Macalester College
OP-5: Building Energy Efficiency
| Status | Score | Responsible Party |
|---|---|---|
|
3.70 / 6.00 |
Mike
Pumroy Energy Manager Facilities Services |
"---"
indicates that no data was submitted for this field
Part 1. Site energy use per unit of floor area
Performance year energy consumption
| 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
Performance year building space
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
Performance year heating and cooling degree days
| 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)
Performance period
| Start date | End date | |
| Performance period | Jan. 1, 2019 | Dec. 31, 2019 |
Metric used in scoring for Part 1
8.32
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.
| 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
Baseline year building space
1,443,859
Gross square feet
Baseline 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 energy
3
Total energy consumption per unit of floor area:
| Site energy | Source energy | |
| Performance year | 0.09 MMBtu per square foot | 0.14 MMBtu per square foot |
| Baseline year | 0.10 MMBtu per square foot | 0.16 MMBtu per square foot |
Metric used in scoring for Part 2
13.16
Optional Fields
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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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Data source(s) and notes about the submission:
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 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 or simply email your inquiry to stars@aashe.org.