INITIAL GRANTS TO GREEN PROGRAM IMPLEMENTATION
- Dempsey HVAC Controls upgrade
Current progress and work plan:
- Over winter break 2016, the contractor created build out drawings and dimensions for the wiring and control locations, and evaluated the integrity of current point to point wiring.
- Contractor installation begins March 3rd and all end user controls will be installed by March 10th; projected completion of mechanical control change-out by 3/17/2017.
The control system for the HVAC systems in Dempsey Hall are obsolete and no longer have fine-tuned controls that regulate temperatures (and thus energy consumption) for subdivided areas of the building. By updating the controls, we will have the ability to manage and monitor set points for the building in subdivided areas and reduce the operation and run-time of the equipment during peak demand times during the year.
Projected annual energy savings: 52,031 kWh
- EVOLVE Showerhead Valve Installation
Current progress and work plan:
- We have installed approximately 150 of the 303 shower heads
- Current plan is to install the rest as time allows with all being installed that were ordered by March 10th, 2017
The ShowerStart TSV (thermostatic shut-oﬀ valve, or the “Valve”) attaches to existing showerheads and shower arms with ½” NPT ﬁttings. The Value automatically reduces showerhead ﬂow to a trickle once water measuring 95° F (35° C) reaches the ﬁxture, thus saving hot water that’s used during the user’s warm-up routine (behavioral waste). The trickle shall continue until the user reactivates normal ﬂow by pulling on the Valve’s lanyard or toggling the bypass lever to which the lanyard is attached. Once the Valve has been bypassed, the showerhead will continue to ﬂow at its normal rate until water ﬂow to the showerhead is terminated. The Valve automatically resets itself for the next use, and is designed to operate in plumbing environments with static water pressures of 30 psi or higher.
Installing the Valve on 303 showerheads in Oglethorpe residence halls should reduce “behavioral waste” hot water. A study conducted by Oak Ridge National Laboratory concluded that for every shower taken “behavioral waste can range from 1.7 to 3.4 gallons to as much as 2.5 to 4.9 gallons per shower”. That means that if there are 2 showers per day taken in each of the 303 showers on Oglethorpe’s campus, and we can estimate saving 2 gallons of hot water per shower use, we could potentially save over 363,600 gallons of hot water per year in the residence halls.
Two showers/day x 303 showers with Valves x 2 gallons of savings x 300 days of the year = 363,600 gallons of hot water saved/year. The estimated cost of generating a gallon of hot water = 1.5 – 1.8 cents per gallon.
ENERGY EFFICIENT INTERIOR LIGHTING
Over winter break 2016: basement and first floors of the library.
During fall 2016 semester: various buildings across campus on an as needed basis (lights go out in an area, replace with LED vs. buying replacement T-12 bulbs whenever cost-effective).
Upgraded approx. 400 fixtures which involved replacing 100 fixtures and installing more efficient LED lighting to 300 current fixtures. Reduced physical lamps from 1200 to 800 while maintaining recommended lumens/sq ft. Reduced energy consumption an estimated 211200 kW/h annually. These are high hours of operation spaces (18 – 24 hours/day).
Upper Quad Restroom/Hallway Upgrades
During fall 2016 we replaced all of the bathroom fixtures in the Upper Quad units (Alumni, Schmidt and Jacobs residence halls) as well as the hallways and laundry areas. We replaced old incandescent bulbs (75 watt) with new LED fixtures (14 watt) – 160 bulbs.
- Restroom areas – 160 bulbs
- 12,000 W(Incandescent 75W) – 2240 W (14W LED)
- 9760 W reduction
- 17,568 estimated kW/h saved per year
- Laundry and Hall spaces – 140 4ft tubes (high usage/24 hour per day lighting)
- 5600 W(T-12) – 2240 W(16W LED)
- 3360 W reduction
- 29,433.6 kW/h estimated savings per year
Weight Room/Cardio Areas
Replaced the old metal-halide 400W lighting with 165W LED bulbs. This is direct drive, meaning we bypassed the old magnetic ballasts completely and tied directly to the power source (avoiding the replacement of the entire fixture).
- 5600W reduced to 2310W (High usage area; 18 hours/day)
- 3290W reduction
- 17,766 kW/h estimated power savings per year
ENERGY EFFICIENT EXTERIOR LIGHTING
Georgia Power owned – unregulated lighting
Upgraded 90 of 106 fixtures from metal-halide to LED across campus
Exterior Security Corridor Lighting (Traer Hall)
Replaced 56 exterior lights and fixtures in the Traer Hall courtyard/cat-walk areas to LED lights....