| Overall Rating | Silver - expired |
|---|---|
| Overall Score | 48.82 |
| Liaison | Eric Boles |
| Submission Date | Feb. 12, 2015 |
| Executive Letter | Download |
University of Arkansas
OP-8: Building Energy Consumption
| Status | Score | Responsible Party |
|---|---|---|
|
3.43 / 6.00 |
Carlos
Ochoa Director Office for Sustainability |
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.
BUILDING ENERGY MANAGEMENT AND CONTROL SYSTEM (BEMCS)
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.).
ELECTRICAL POWER METERING AND MANAGEMENT
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 UTILITY MANAGEMENT PLATFORM
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:
Data source(s) and notes about the submission:
space numbers came from sightlines ROPA profie: total maintained GSF. energy consumption came directly from sight lines profile in Greenbacks.
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.