| Overall Rating | Gold |
|---|---|
| Overall Score | 75.90 |
| Liaison | Deborah Steinberg |
| Submission Date | Dec. 6, 2021 |
Carnegie Mellon University
OP-5: Building Energy Efficiency
| Status | Score | Responsible Party |
|---|---|---|
|
3.59 / 6.00 |
Steve
Guenther University Engineer and Assistant Vice President of Facilities Management and Campus Services Facilities Management 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 | 99,264,009 Kilowatt-hours | 338,688.80 MMBtu |
| Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 5,845.92 Kilowatt-hours | 19.95 MMBtu |
Stationary fuels and thermal energy, performance year (report MMBtu):
| MMBtu | |
| Stationary fuels used on-site to generate electricity and/or thermal energy | 67,778 MMBtu |
| Imported steam, hot water, and/or chilled water | 387,226 MMBtu |
Total site energy consumption, performance year:
793,712.74
MMBtu
Performance year building space
6,759,150.76
Gross square feet
Floor area of energy intensive space, performance year:
| Floor area | |
| Laboratory space | 1,204,572 Square feet |
| Healthcare space | 46,051.80 Square feet |
| Other energy intensive space | 405,457.80 Square feet |
EUI-adjusted floor area, performance year:
9,665,856.16
Gross square feet
Performance year heating and cooling degree days
| Degree days | |
| Heating degree days | 5,365 Degree-Days (°F) |
| Cooling degree days | 999 Degree-Days (°F) |
Total degree days, performance year:
6,364
Degree-Days (°F)
Performance period
| Start date | End date | |
| Performance period | July 1, 2020 | June 30, 2021 |
Metric used in scoring for Part 1
12.90
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 | 96,873,546 Kilowatt-hours | 330,532.54 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 | 45,055 MMBtu |
| Imported steam, hot water, and/or chilled water | 349,384 MMBtu |
Total site energy consumption, baseline year:
724,971.54
MMBtu
Baseline year building space
5,391,617
Gross square feet
Baseline period
| Start date | End date | |
| Baseline period | July 1, 2004 | June 30, 2005 |
A brief description of when and why the energy consumption baseline was adopted:
FY 2005 was selected to be consistent with earlier STARS reporting Baseline year. However, the building gross floor area was re-adjusted using performance year methodology. It should be noted that in 2018 CMU revised its approach to calculating square footage. Historically, CMU included in its square footage rented floor area for which we paid utility bills. We also used to calculate square footage using the the area the federal government calls “Net Usable Area." In an effort to standardize our approach to square footage reporting for various campus reports, we now include only the floor area of the buildings we own. We also have shifted to a gross square footage approach,(similar for USGBC and for AASHE).
Source energy
3
Total energy consumption per unit of floor area:
| Site energy | Source energy | |
| Performance year | 0.12 MMBtu per square foot | 0.22 MMBtu per square foot |
| Baseline year | 0.13 MMBtu per square foot | 0.26 MMBtu per square foot |
Metric used in scoring for Part 2
15.34
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:
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A brief description of energy use standards and controls employed by the institution:
Building Temperatures are determined so as to meet occupant requirements for asset preservation, experimental requirements and personal productivity. Occupancy sensors are used fairly broadly across the university to control lighting and to control ventilation rates in newer construction.
A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
100% of new or replacement lighting installations are LED.
A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
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A brief description of co-generation employed by the institution:
Carnegie Mellon University does not currently deploy any co-generation technologies. However, cogeneration is being actively studied for potential installation in 2022-23.
A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
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Website URL where information about the institution’s energy conservation and efficiency program is available:
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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.