|Submission Date||March 2, 2020|
University of Texas at Austin
OP-5: Building Energy Efficiency
|4.22 / 6.00||
Associate Director for Energy Management & Optimization
Electricity use, performance year (report kilowatt-hours):
|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):
|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:
Gross floor area of building space, performance year:
Floor area of energy intensive space, performance year:
|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:
Degree days, performance year:
|Heating degree days||1,260 Degree-Days (°F)|
|Cooling degree days||8,199 Degree-Days (°F)|
Total degree days, performance year:
Start and end dates of the performance year (or 3-year period):
|Start date||End date|
|Performance period||Sept. 1, 2018||Aug. 31, 2019|
Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:
Electricity use, baseline year (report kWh):
|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):
|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:
Gross floor area of building space, baseline year:
Start and end dates of the baseline year (or 3-year 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-site ratio for imported electricity:
Total energy consumption per unit of floor area:
|Site energy||Source energy|
|Performance year||0.07 MMBtu / GSF||0.16 MMBtu / GSF|
|Baseline year||0.09 MMBtu / GSF||0.20 MMBtu / GSF|
Percentage reduction in total source energy consumption per unit of floor area from baseline:
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:
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.
A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
Website URL where information about the institution’s energy conservation and efficiency program is available:
Additional documentation to support 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.
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.