Overall Rating Silver - expired
Overall Score 48.82
Liaison Eric Boles
Submission Date Feb. 12, 2015
Executive Letter Download

STARS v2.0

University of Arkansas
OP-8: Building Energy Consumption

Status Score Responsible Party
Complete 3.43 / 6.00 Carlos Ochoa
Office for Sustainability
"---" indicates that no data was submitted for this field

Total building energy consumption, all sources (transportation fuels excluded):
Performance Year Baseline Year
Total building energy consumption 815,936.50 MMBtu 1,061,884.60 MMBtu

Purchased electricity and steam:
Performance Year Baseline Year
Grid-purchased electricity 460,995.10 MMBtu 612,345.40 MMBtu
District steam/hot water 354,941.30 MMBtu 449,539.20 MMBtu

Gross floor area of building space::
Performance Year Baseline Year
Gross floor area 7,807,144 Gross Square Feet 6,690,102 Gross Square Feet

Floor area of energy intensive space, performance year::
Floor Area
Laboratory space 434,052 Square Feet
Healthcare space 0 Square Feet
Other energy intensive space

Degree days, performance year (base 65 °F)::
Degree days (see help icon above)
Heating degree days 3,595
Cooling degree days 2,020

Source-site ratios::
Source-Site Ratio (see help icon above)
Grid-purchased electricity 3.14
District steam/hot water 1.20

Start and end dates of the performance year and baseline year (or 3-year periods)::
Start Date End Date
Performance Year Jan. 1, 2014 Dec. 31, 2014
Baseline Year Jan. 1, 2009 Dec. 31, 2009

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

A brief description of any building temperature standards employed by the institution:

Setback thermostats are in use in every building on campus.

A brief description of any light emitting diode (LED) lighting employed by the institution:

Over 1500 LED fixtures are in place in two dozen applications, indoors and outdoors, across campus.

A brief description of any occupancy and/or vacancy sensors employed by the institution:

Leviton occupancy sensors are in use in almost every major building on campus. All new construction projects include lighting controls as appropriate.

A brief description of any passive solar heating employed by the institution:

A brief description of any ground-source heat pumps employed by the institution:

A brief description of any cogeneration technologies employed by the institution:

A brief description of any building recommissioning or retrofit program employed by the institution:

A brief description of any energy metering and management systems employed by the institution:

The University has an integrated energy management / utility accounting system in place that controls and tracks energy consumption and building performance on a building by building basis. The campus system integrates several different platforms to deliver the integrated view of the campus.

The primary BEMCS for the campus is a Johnson Controls Metasys system.This system runs all of the HVAC systems on campus. In addition it is responsible for seasonal space temperature setbacks, controlling occupied, standby and unoccupied building operating schedules and for building energy metering for thermal streams (steam, chilled water, heating water, etc.).

Campus electrical energy and power measurement is accomplished using a Schneider / Square D SPM7 power management system. This system meters energy and power data at the building level, as well as provides power quality data for the building.

Energy Witness by Interval Data Systems acts as the clearinghouse for energy data on campus. This application provides accounts payable bill processing so all purchased utility billing data is entered into the system. The application also pulls utility metering and operational data from the other systems into its unified database for accounts payable cost allocation. Because it retains all of the utility information, the data is made available to the campus via web reporting from the database.

A brief description of the institution's program to replace energy-consuming appliances, equipment and systems with high efficiency alternatives:

A brief description of any energy-efficient landscape design initiatives employed by the institution:

A brief description of any vending machine sensors, lightless machines, or LED-lit machines employed by the institution:

Vending machine sensors control lighting in machines throughout residence halls.

A brief description of other energy conservation and efficiency initiatives employed by the institution:

The website URL where information about the institution’s energy conservation and efficiency initiatives is available:

space numbers came from sightlines ROPA profie: total maintained GSF. energy consumption came directly from sight lines profile in Greenbacks.

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.