Luther is starting a campus-wide, room-by-room energy study that will focus on modifying lighting levels and improving HVAC controls and performance. Luther College sustainability staff and work-study students are collaborating on this unique project with Michaels Energy, an engineering firm in La Crosse, Wisconsin. Potential opportunities for energy efficiency associated with this study include:
- Reducing over-lighting by replacing or retrofitting fixtures, lamps and/or ballasts.
- Increasing the opportunity for day-lighting or reduced artificial lighting when reduced levels meet occupant needs.
- Modifying switching and wiring to allow multiple lighting levels or zoned switching based on daylight availability.
- Increasing the use of day-lighting by using daylight sensors and controls.
- Eliminating lighting usage when spaces are unoccupied via occupancy sensors.
- Reducing HVAC energy use when spaces are unoccupied.
- Reducing HVAC energy use in variable-occupancy spaces through the use of carbon dioxide sensors.
The goal is to complete the study by June 2014.