| Overall Rating | Gold - expired |
|---|---|
| Overall Score | 67.20 |
| Liaison | Anne Duncan |
| Submission Date | Jan. 29, 2015 |
| Executive Letter | Download |
Wartburg College
OP-8: Building Energy Consumption
| Status | Score | Responsible Party |
|---|---|---|
|
3.13 / 6.00 |
John
Wuertz Director of Physical Plant Maintenance |
Total building energy consumption, all sources (transportation fuels excluded):
| Performance Year | Baseline Year | |
| Total building energy consumption | 44,618.54 MMBtu | 47,251.33 MMBtu |
Purchased electricity and steam:
| Performance Year | Baseline Year | |
| Grid-purchased electricity | 44,618.54 MMBtu | 47,251.33 MMBtu |
| District steam/hot water | 0 MMBtu | 0 MMBtu |
Gross floor area of building space::
| Performance Year | Baseline Year | |
| Gross floor area | 1,038,353 Gross square feet | 1,038,353 Gross square feet |
Floor area of energy intensive space, performance year::
| Floor Area | |
| Laboratory space | 3,602 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 | 8,399.40 |
| Cooling degree days | 1,015.70 |
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 | June 1, 2013 | May 31, 2014 |
| Baseline Year | June 1, 2008 | May 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:
Wartburg has scheduling for the Wellness center, Science, Library, Luther, Fine Arts Center, Chapel, Auditorium and Communication Technology Center. What this means is that we have occupied, when the buildings are usually used, and unoccupied times. During the occupied times the temperatures are set to what you are used to. During unoccupied times the temperature set points are lowered to save energy.
A brief description of any light emitting diode (LED) lighting employed by the institution:
Wartburg uses LED technology in our accent lighting, our display case lighting, as well as in a number of our security lights around campus. LED's are our first choice of new lighting and retrofit.
A brief description of any occupancy and/or vacancy sensors employed by the institution:
High traffic areas, and many office suites throughout campus buildings have had motion sensors installed so that the lights turn off after 10 minutes of inactivity.
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:
In 2010 the college commissioned a comprehensive energy analysis. A select team evaluated the recommendations, and selected options with an average payback of 10 years. During 2011 and 2012 the college implemented these recommendations, with the final cost of $2,400,000 with an annual savings of $270,000.
A brief description of any energy metering and management systems employed by the institution:
The buildings utilizing energy management systems have individual controllers which are classified as "Web Servers." These Web Servers are internet gateways that allow users to access the EMS (energy management system) through the internet using a Username and Password from anywhere in the world. There are two computers, one for Steafa and one for Alerton, on campus that act as the respective servers.
This EMS is capable of engineering, programming and monitoring the expanded and existing BAS (Building Automation System). This provides local and remote access through a web-enabled system. It represents floor plans, mechanical systems and all equipment incorporated into the BAS graphically, both in status and configuration. In addition operators are able to command equipment or modify set-points and schedules, add trending or alarms to any hardware or software point, and make changes to other selected operational parameters in-line with the privileges of the active end-user from a graphic through the use of a mouse.
A brief description of the institution's program to replace energy-consuming appliances, equipment and systems with high efficiency alternatives:
As appliances fail, or are due for replacement, energy consumption is considered as much as the cost of a replacement unit.
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:
The vending machines on campus conserve energy by shutting off the display lighting when no one is within a reasonable proximity. Case and cooler lighting is nearly all LED.
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:
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.