Electricity Conservation
H&FS VendingMiser Installations
VendingMisers are currently being installed on 200 cold drink vending machines on campus. Preliminary monitoring of electricity consumption indicate that 200 of these machines consume approximately 1 million kWh / year equating to approximately $50,000 in electricity. VendingMisers may save up to 40% in electricity consumption.
Schmitz Hall HVAC (Adjustable Speed Drives)
This project has been approved by SCL. Johnson Controls has the contract. Construction is expected to start Spring Quarter 2002. The project cost is $95,000. Estimated savings are 530,000 kWh per year and an anticipated SCL rebate of $66,395.
West Campus Garage Lighting Control
West Campus Garage energy saving lighting panel is installed, operational and awaiting SCL inspection and rebate.
Building Occupancy Sensor Pilot
Design Services is currently working on a design for this pilot project. The Art Building was selected as the first site to design and install alternative occupancy sensor lighting control schemes. As with other Conservation Project Development Team (CPDT) pilot projects, the existing electricity consumption will be measured before and after applying the new control strategies. The pilot project will provide information regarding design and installation cost factors, potential utility savings and simple payback for future installation considerations. D.S. Project 4431
IMA Tennis Court Lighting Retrofit
The IMA Outdoor Tennis Court lighting retrofit project replaced 111 - 1000 watt metal halide fixtures with 75 - 1000 watt Musco Sportscluster metal halides with Glare Control.
This project addressed four issues:
- Abatement of asbestos in the existing fixtures that significantly hindered maintaining these lights at a reasonable cost.
- Complaints about light spillage into the surrounding area and neighborhoods.
- Inadequate light levels on the playing surfaces.
- Energy consumption
The Musco system increased light levels by 27% and decreased electrical load by approximately 30%. The project cost $106,000 and should save about $2000 per year in electricity. The CPDT combined this project with another ICA field light removal project for a total of 307,485 in kWh savings with an anticipated incentive rebate of $30,750 SCL.
Elevator Solid State Drive Retrofits
Pre project data and project packages for elevator solid state retrofitting are being developed for submission to SCL. Target buildings are Guthrie, Kane, Suzzallo Library, McMahon and RR Tower. The projects are expected to extend to the 4th quarter of 2002 or the 1st quarter of 2003 for construction completion and post project data monitoring.
Lighting Retrofits / Lighting Reduction
Lighting reduction and lighting retrofits for Gould Hall is nearing completion. The Fluke Hall lighting reduction and retrofit project has been audited for review and approval by SCL.
SCL Incentives Received
During the quarter recovered by this report the University has received $107,000 from Seattle City Light in incentive rebates.
Surveyor
The CPDT and C&C are reviewing a software program called Surveyor by
EZ Conserve, Inc. Surveyor allows organizations to remotely manage the power settings of their networked PCs and reduce energy consumption. The software program sets the power management options of Windows-based PCs to standard profiles. Surveyor provides a central interface through which these settings can be set and distributed based on power management policies.
Water Conservation
2001 Water Conservation Projects
Time and effort was devoted primarily to repair and identification of future projects. Most significant were repairs to the Pavilion Pool bottom drain line leak (100,000 gallons per month / $11,230 per year combined water and sewer cost), and to Hitchcock Hall cooling tower (63,072,000 gallons per year / $590,290 per year combined water and sewer cost).
2002 Water Projects
Balmer Hall Water Conservation Pilot Project
Project scope is to develop data on a building’s water consumption profile and estimated savings resulting from retrofit of sink aerators, 1.5 gallon per flush urinals and 1.6 gallons per flush toilets.
Existing conditions:
- Type: Classroom building
- 10,000 gallons per day water consumption Mon. - Thurs
- < 5,000 gpd - Fridays
- < 2,000 gpd - Saturdays
- < 500 gpd - Sundays
Retrofitting 2.0 gpm sink aerators with 0.5 gpm aerators produced little detectable reduction in weekly water consumption.
During Spring break, 40 urinals with 3.5 gallon per flush flush-o-meters were retrofitted with 1.5 gallon flush kits. Preliminary data indicates approximately 2,000 gallons per day reduction Mondays - Thursdays.
Evaluation of low flush toilets for eventual retrofit continues with SPU.
The Balmer Hall monitoring data indicated that water consumption suddenly increased by more than 5,000 gallons on March 5th. An investigation into this occurrence revealed that a stuck flush-o-meter had gone unreported that day. The device was fixed the next morning. This incident is a good illustration of how quickly a large amount of water can be wasted in short order by something as simple as a stuck flush-o-meter.
McCarty Kitchen Refrigeration Conversion
This project has been put on hold by Housing and Food Services.
Water-free Urinal Installation Pilot
100 water-free urinals are being installed in various locations throughout Upper Campus and Health Sciences. They have been installed in Allen Library, Meany Hall, Physical Plant Office Building, Plant Services and Health Sciences (D, E, F, H, and K Wings). These fixtures typically replace urinals with 3.5 gallons per flush capacity.
It is estimated that 100 water-free urinals should save approximately $37,000 per year in avoided costs to the University’s combined water and sewer bill. Maintenance expense to replace the urinal cartridges is estimated to be less than $9,000 per year. Estimated net water and sewer savings is $28,000 per year.
Cooling Tower Survey
The survey of 28 campus cooling towers is nearing completion. Preliminary indications suggest a need to develop a more comprehensive cooling tower maintenance program. Approximately 25% of the towers are the open loop style and are expected to have higher water consumption rates. Recommendations for installing supply and discharge (deduct) water meters on these towers are forthcoming.
Rebate in the amount of approximately $12,000 per year may be available for avoided waste to sewer because of evaporation at the Allen Center for the Visual Arts, $300 or less per year at the HUB, Chemistry, H-Wing, J-Wing, Marine Science, Music and Kincaid.
BB Cooling Tower Replacement
The BB Highrise cooling tower project is currently in the demolition phase. Development of the SPU project package is awaiting construction estimated costs data. Savings from avoided water consumption is presently estimated at approximately $10,000 per year.
Quaternary Research Cooling Tower Replacement
Avoided water consumption data collection is in progress for this project. With about 1/3 of the connected loads surveyed, savings are expected to exceed $29,700 per year. The remaining loads may not contribute significantly to this figure but, it is too early to tell at this time. This project is estimated to cost $650,000.
Reverse Osmosis & Vacuum Pumps
Recent installations of water meters in BB Highrise and I-Wing are providing preliminary data for analysis and future retrofit recommendations.
Of particular note is a situation causing the I-Wing vacuum producer to run continually consuming approximately 7500 gallons of water per day ($25,000 per year). This is four times the rate of consumption at BB Highrise. Both vacuum producers are the same size. More research is needed to determine sizing and cost of retrofitting with a waterless vacuum producer.