| Overall Rating | Gold - expired |
|---|---|
| Overall Score | 65.58 |
| Liaison | Jim Walker |
| Submission Date | March 2, 2020 |
University of Texas at Austin
OP-5: Building Energy Efficiency
| Status | Score | Responsible Party |
|---|---|---|
|
4.22 / 6.00 |
Roberto
Del Real Director of Utilities - Energy Management and Strategic Programs Utilities |
"---"
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 | 341,914,000 Kilowatt-hours | 1,166,610.57 MMBtu |
| Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 848,500 Kilowatt-hours | 2,895.08 MMBtu |
Stationary fuels and thermal energy, performance year (report MMBtu):
| MMBtu | |
| Stationary fuels used on-site to generate electricity and/or thermal energy | 99,368 MMBtu |
| Imported steam, hot water, and/or chilled water | 759,561 MMBtu |
Total site energy consumption, performance year:
2,028,434.65
MMBtu
Performance year building space
27,581,856
Gross square feet
Floor area of energy intensive space, performance year:
| Floor area | |
| Laboratory space | 1,138,765 Square feet |
| Healthcare space | 105,293 Square feet |
| Other energy intensive space | 455,585 Square feet |
EUI-adjusted floor area, performance year:
30,525,557
Gross square feet
Performance year heating and cooling degree days
| Degree days | |
| Heating degree days | 1,260 Degree-Days (°F) |
| Cooling degree days | 8,199 Degree-Days (°F) |
Total degree days, performance year:
9,459
Degree-Days (°F)
Performance period
| Start date | End date | |
| Performance period | Sept. 1, 2018 | Aug. 31, 2019 |
Metric used in scoring for Part 1
7.03
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 | 351,017,111 Kilowatt-hours | 1,197,670.38 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 | 80,967 MMBtu |
| Imported steam, hot water, and/or chilled water | 887,693 MMBtu |
Total site energy consumption, baseline year:
2,166,330.38
MMBtu
Baseline year building space
22,851,399
Gross square feet
Baseline period
| Start date | End date | |
| Baseline period | Sept. 1, 2008 | Aug. 31, 2009 |
A brief description of when and why the energy consumption baseline was adopted:
In 2009, the President Sustainability Steering Committee outlined the Natural Resource Conservation Plan and set the baseline year of 2009 for energy and water conservation. The goal is to reduce energy and water by 20% by the year 2020. All Campus Planning and Facilities Services operational units contribute to these reductions.
Source energy
3
Total energy consumption per unit of floor area:
| Site energy | Source energy | |
| Performance year | 0.07 MMBtu per square foot | 0.16 MMBtu per square foot |
| Baseline year | 0.09 MMBtu per square foot | 0.20 MMBtu per square foot |
Metric used in scoring for Part 2
20.78
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:
The university implements a standards of temperature in digitally controlled buildings based on building use. Typically, the office/academic buildings operate at a 72 +/- 2 degrees setting for lab and collection spaces the standards are 70 +/- 2 degrees. This also varies based on the HVAC systems and thermal controls. The majority of buildings on campus with BAS controls have a setback schedule implemented during unoccupied times, resulting in drastic energy reductions.
A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
LED lighting is used for a large display case in Butler Hall, an academic building. 15-4 foot and 11-2 foot LED sections were installed.
A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
Currently UT has one solar thermal system. The NHB solar thermal system is the Apricus AP-30 evacuated tube system and consists of 36 5-panel banks. The heated water goes to the reheat coils in the VAV terminal units.
A brief description of co-generation employed by the institution:
The 140-megawatt Hal C. Weaver Power Plant (.mov*) meets the university’s needs 24 hours a day, every day of the year with the following services:
• Electricity—we generate electrical power at 12,000 volts and 4,160 volts for distribution throughout the campus.
• Steam—we generate steam at 425 psi and 710 F for use in the plant, as well as at 160 psi for distribution throughout the campus to provide building heat, heat for hot water, and auxiliary services.
• Compressed Air—we provide air for use in campus buildings and laboratories.
• Demineralized Water—we provide about 8 million gallons of demineralized water to the campus for laboratory use.
• Chilled Water—we distribute about 140,000,000 ton-hours of chilled water through more than 6 miles of chilled water lines to provide air conditioning to the campus.
• Electricity—we generate electrical power at 12,000 volts and 4,160 volts for distribution throughout the campus.
• Steam—we generate steam at 425 psi and 710 F for use in the plant, as well as at 160 psi for distribution throughout the campus to provide building heat, heat for hot water, and auxiliary services.
• Compressed Air—we provide air for use in campus buildings and laboratories.
• Demineralized Water—we provide about 8 million gallons of demineralized water to the campus for laboratory use.
• Chilled Water—we distribute about 140,000,000 ton-hours of chilled water through more than 6 miles of chilled water lines to provide air conditioning to the campus.
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:
Additional documentation to support the submission:
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Data source(s) and notes about the submission:
The number in this credit for ‘other intensive space’ should be in PRE4 (cannot update PRE4 because credit is locked).
No performance year data for Dell Medical School buildings as they came online after the performance year listed above - square footage does not reflect Dell Medical School buildings for this reason.
No performance year data for Dell Medical School buildings as they came online after the performance year listed above - square footage does not reflect Dell Medical School buildings for this reason.
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.